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@@ -1,7 +1,7 @@
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-/**
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+/**
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@file protocol.c
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@brief ENet protocol functions
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-*/
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+ */
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#include <stdio.h>
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#include <string.h>
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#define ENET_BUILDING_LIB 1
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@@ -9,1846 +9,1845 @@
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#include "enet/time.h"
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#include "enet/enet.h"
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-static size_t commandSizes [ENET_PROTOCOL_COMMAND_COUNT] =
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-{
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- 0,
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- sizeof (ENetProtocolAcknowledge),
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- sizeof (ENetProtocolConnect),
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- sizeof (ENetProtocolVerifyConnect),
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- sizeof (ENetProtocolDisconnect),
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- sizeof (ENetProtocolPing),
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- sizeof (ENetProtocolSendReliable),
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- sizeof (ENetProtocolSendUnreliable),
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- sizeof (ENetProtocolSendFragment),
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- sizeof (ENetProtocolSendUnsequenced),
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- sizeof (ENetProtocolBandwidthLimit),
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- sizeof (ENetProtocolThrottleConfigure),
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- sizeof (ENetProtocolSendFragment)
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-};
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-
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-size_t
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-enet_protocol_command_size (enet_uint8 commandNumber)
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+static size_t commandSizes[ENET_PROTOCOL_COMMAND_COUNT] =
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+{ 0, sizeof(ENetProtocolAcknowledge), sizeof(ENetProtocolConnect),
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+ sizeof(ENetProtocolVerifyConnect), sizeof(ENetProtocolDisconnect), sizeof(ENetProtocolPing),
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+ sizeof(ENetProtocolSendReliable), sizeof(ENetProtocolSendUnreliable),
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+ sizeof(ENetProtocolSendFragment), sizeof(ENetProtocolSendUnsequenced),
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+ sizeof(ENetProtocolBandwidthLimit), sizeof(ENetProtocolThrottleConfigure),
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+ sizeof(ENetProtocolSendFragment) };
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+
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+size_t enet_protocol_command_size(enet_uint8 commandNumber)
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{
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- return commandSizes [commandNumber & ENET_PROTOCOL_COMMAND_MASK];
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+ return commandSizes[commandNumber & ENET_PROTOCOL_COMMAND_MASK];
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}
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-static int
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-enet_protocol_dispatch_incoming_commands (ENetHost * host, ENetEvent * event)
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+static int enet_protocol_dispatch_incoming_commands(ENetHost * host, ENetEvent * event)
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{
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- while (! enet_list_empty (& host -> dispatchQueue))
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- {
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- ENetPeer * peer = (ENetPeer *) enet_list_remove (enet_list_begin (& host -> dispatchQueue));
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+ while (!enet_list_empty (& host -> dispatchQueue))
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+ {
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+ ENetPeer * peer = (ENetPeer *) enet_list_remove(enet_list_begin (& host -> dispatchQueue));
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+
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+ peer->needsDispatch = 0;
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+
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+ switch (peer->state)
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+ {
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+ case ENET_PEER_STATE_CONNECTION_PENDING:
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+ case ENET_PEER_STATE_CONNECTION_SUCCEEDED:
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+ peer->state = ENET_PEER_STATE_CONNECTED;
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+
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+ event->type = ENET_EVENT_TYPE_CONNECT;
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+ event->peer = peer;
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+ event->data = peer->eventData;
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- peer -> needsDispatch = 0;
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+ return 1;
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- switch (peer -> state)
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- {
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- case ENET_PEER_STATE_CONNECTION_PENDING:
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- case ENET_PEER_STATE_CONNECTION_SUCCEEDED:
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- peer -> state = ENET_PEER_STATE_CONNECTED;
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+ case ENET_PEER_STATE_ZOMBIE:
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+ host->recalculateBandwidthLimits = 1;
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- event -> type = ENET_EVENT_TYPE_CONNECT;
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- event -> peer = peer;
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- event -> data = peer -> eventData;
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+ event->type = ENET_EVENT_TYPE_DISCONNECT;
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+ event->peer = peer;
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+ event->data = peer->eventData;
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- return 1;
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-
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- case ENET_PEER_STATE_ZOMBIE:
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- host -> recalculateBandwidthLimits = 1;
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+ enet_peer_reset(peer);
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- event -> type = ENET_EVENT_TYPE_DISCONNECT;
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- event -> peer = peer;
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- event -> data = peer -> eventData;
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+ return 1;
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- enet_peer_reset (peer);
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+ case ENET_PEER_STATE_CONNECTED:
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+ if (enet_list_empty (& peer -> dispatchedCommands))
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+ continue;
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- return 1;
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+ event->packet = enet_peer_receive(peer, &event->channelID);
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+ if (event->packet == NULL)
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+ continue;
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- case ENET_PEER_STATE_CONNECTED:
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- if (enet_list_empty (& peer -> dispatchedCommands))
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- continue;
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+ event->type = ENET_EVENT_TYPE_RECEIVE;
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+ event->peer = peer;
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- event -> packet = enet_peer_receive (peer, & event -> channelID);
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- if (event -> packet == NULL)
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- continue;
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-
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- event -> type = ENET_EVENT_TYPE_RECEIVE;
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- event -> peer = peer;
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+ if (!enet_list_empty (& peer -> dispatchedCommands))
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+ {
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+ peer->needsDispatch = 1;
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- if (! enet_list_empty (& peer -> dispatchedCommands))
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- {
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- peer -> needsDispatch = 1;
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-
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- enet_list_insert (enet_list_end (& host -> dispatchQueue), & peer -> dispatchList);
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- }
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+ enet_list_insert(enet_list_end (& host -> dispatchQueue), &peer->dispatchList);
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+ }
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- return 1;
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+ return 1;
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- default:
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- break;
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- }
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- }
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+ default:
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+ break;
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+ }
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+ }
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- return 0;
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+ return 0;
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}
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-static void
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-enet_protocol_dispatch_state (ENetHost * host, ENetPeer * peer, ENetPeerState state)
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+static void enet_protocol_dispatch_state(ENetHost * host, ENetPeer * peer, ENetPeerState state)
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{
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- peer -> state = state;
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+ peer->state = state;
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- if (! peer -> needsDispatch)
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- {
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- enet_list_insert (enet_list_end (& host -> dispatchQueue), & peer -> dispatchList);
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+ if (!peer->needsDispatch)
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+ {
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+ enet_list_insert(enet_list_end (& host -> dispatchQueue), &peer->dispatchList);
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- peer -> needsDispatch = 1;
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- }
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+ peer->needsDispatch = 1;
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+ }
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}
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-
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-static void
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-enet_protocol_notify_connect (ENetHost * host, ENetPeer * peer, ENetEvent * event)
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+
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+static void enet_protocol_notify_connect(ENetHost * host, ENetPeer * peer, ENetEvent * event)
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{
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- host -> recalculateBandwidthLimits = 1;
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-
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- if (event != NULL)
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- {
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- peer -> state = ENET_PEER_STATE_CONNECTED;
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-
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- event -> type = ENET_EVENT_TYPE_CONNECT;
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- event -> peer = peer;
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- event -> data = peer -> eventData;
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- }
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- else
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- enet_protocol_dispatch_state (host, peer, peer -> state == ENET_PEER_STATE_CONNECTING ? ENET_PEER_STATE_CONNECTION_SUCCEEDED : ENET_PEER_STATE_CONNECTION_PENDING);
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+ host->recalculateBandwidthLimits = 1;
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+
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+ if (event != NULL)
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+ {
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+ peer->state = ENET_PEER_STATE_CONNECTED;
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+
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+ event->type = ENET_EVENT_TYPE_CONNECT;
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+ event->peer = peer;
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+ event->data = peer->eventData;
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+ }
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+ else
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+ enet_protocol_dispatch_state(host, peer,
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+ peer->state == ENET_PEER_STATE_CONNECTING ?
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+ ENET_PEER_STATE_CONNECTION_SUCCEEDED : ENET_PEER_STATE_CONNECTION_PENDING);
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}
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-static void
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-enet_protocol_notify_disconnect (ENetHost * host, ENetPeer * peer, ENetEvent * event)
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+static void enet_protocol_notify_disconnect(ENetHost * host, ENetPeer * peer, ENetEvent * event)
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{
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- if (peer -> state >= ENET_PEER_STATE_CONNECTION_PENDING)
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- host -> recalculateBandwidthLimits = 1;
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-
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- if (peer -> state != ENET_PEER_STATE_CONNECTING && peer -> state < ENET_PEER_STATE_CONNECTION_SUCCEEDED)
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- enet_peer_reset (peer);
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- else
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- if (event != NULL)
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- {
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- event -> type = ENET_EVENT_TYPE_DISCONNECT;
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- event -> peer = peer;
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- event -> data = 0;
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-
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- enet_peer_reset (peer);
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- }
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- else
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- {
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- peer -> eventData = 0;
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-
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- enet_protocol_dispatch_state (host, peer, ENET_PEER_STATE_ZOMBIE);
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- }
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+ if (peer->state >= ENET_PEER_STATE_CONNECTION_PENDING)
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+ host->recalculateBandwidthLimits = 1;
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+
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+ if (peer->state != ENET_PEER_STATE_CONNECTING
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+ && peer->state < ENET_PEER_STATE_CONNECTION_SUCCEEDED)
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+ enet_peer_reset(peer);
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+ else if (event != NULL)
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+ {
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+ event->type = ENET_EVENT_TYPE_DISCONNECT;
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+ event->peer = peer;
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+ event->data = 0;
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+
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+ enet_peer_reset(peer);
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+ }
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+ else
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+ {
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+ peer->eventData = 0;
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+
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+ enet_protocol_dispatch_state(host, peer, ENET_PEER_STATE_ZOMBIE);
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+ }
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}
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-static void
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-enet_protocol_remove_sent_unreliable_commands (ENetPeer * peer)
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+static void enet_protocol_remove_sent_unreliable_commands(ENetPeer * peer)
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{
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- ENetOutgoingCommand * outgoingCommand;
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+ ENetOutgoingCommand * outgoingCommand;
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+
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+ while (!enet_list_empty (& peer -> sentUnreliableCommands))
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+ {
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+ outgoingCommand =
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+ (ENetOutgoingCommand *) enet_list_front (& peer -> sentUnreliableCommands);
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- while (! enet_list_empty (& peer -> sentUnreliableCommands))
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- {
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- outgoingCommand = (ENetOutgoingCommand *) enet_list_front (& peer -> sentUnreliableCommands);
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-
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- enet_list_remove (& outgoingCommand -> outgoingCommandList);
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+ enet_list_remove(&outgoingCommand->outgoingCommandList);
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- if (outgoingCommand -> packet != NULL)
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- {
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- -- outgoingCommand -> packet -> referenceCount;
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+ if (outgoingCommand->packet != NULL)
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+ {
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+ --outgoingCommand->packet->referenceCount;
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- if (outgoingCommand -> packet -> referenceCount == 0)
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- enet_packet_destroy (outgoingCommand -> packet);
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- }
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+ if (outgoingCommand->packet->referenceCount == 0)
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+ enet_packet_destroy(outgoingCommand->packet);
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+ }
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- enet_free (outgoingCommand);
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- }
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+ enet_free(outgoingCommand);
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+ }
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}
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-static ENetProtocolCommand
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-enet_protocol_remove_sent_reliable_command (ENetPeer * peer, enet_uint16 reliableSequenceNumber, enet_uint8 channelID)
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-{
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- ENetOutgoingCommand * outgoingCommand = NULL;
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- ENetListIterator currentCommand;
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- ENetProtocolCommand commandNumber;
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- int wasSent = 1;
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-
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- for (currentCommand = enet_list_begin (& peer -> sentReliableCommands);
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- currentCommand != enet_list_end (& peer -> sentReliableCommands);
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- currentCommand = enet_list_next (currentCommand))
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- {
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- outgoingCommand = (ENetOutgoingCommand *) currentCommand;
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-
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- if (outgoingCommand -> reliableSequenceNumber == reliableSequenceNumber &&
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- outgoingCommand -> command.header.channelID == channelID)
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- break;
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- }
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-
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- if (currentCommand == enet_list_end (& peer -> sentReliableCommands))
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- {
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- for (currentCommand = enet_list_begin (& peer -> outgoingReliableCommands);
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- currentCommand != enet_list_end (& peer -> outgoingReliableCommands);
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- currentCommand = enet_list_next (currentCommand))
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- {
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- outgoingCommand = (ENetOutgoingCommand *) currentCommand;
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-
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- if (outgoingCommand -> sendAttempts < 1) return ENET_PROTOCOL_COMMAND_NONE;
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-
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- if (outgoingCommand -> reliableSequenceNumber == reliableSequenceNumber &&
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- outgoingCommand -> command.header.channelID == channelID)
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- break;
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- }
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-
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- if (currentCommand == enet_list_end (& peer -> outgoingReliableCommands))
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- return ENET_PROTOCOL_COMMAND_NONE;
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-
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- wasSent = 0;
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- }
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-
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- if (channelID < peer -> channelCount)
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- {
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- ENetChannel * channel = & peer -> channels [channelID];
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- enet_uint16 reliableWindow = reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
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- if (channel -> reliableWindows [reliableWindow] > 0)
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- {
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- -- channel -> reliableWindows [reliableWindow];
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- if (! channel -> reliableWindows [reliableWindow])
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- channel -> usedReliableWindows &= ~ (1 << reliableWindow);
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- }
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- }
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-
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- commandNumber = (ENetProtocolCommand) (outgoingCommand -> command.header.command & ENET_PROTOCOL_COMMAND_MASK);
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-
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- enet_list_remove (& outgoingCommand -> outgoingCommandList);
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-
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- if (outgoingCommand -> packet != NULL)
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- {
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- if (wasSent)
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- peer -> reliableDataInTransit -= outgoingCommand -> fragmentLength;
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-
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- -- outgoingCommand -> packet -> referenceCount;
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-
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- if (outgoingCommand -> packet -> referenceCount == 0)
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- enet_packet_destroy (outgoingCommand -> packet);
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- }
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-
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- enet_free (outgoingCommand);
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-
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- if (enet_list_empty (& peer -> sentReliableCommands))
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- return commandNumber;
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-
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- outgoingCommand = (ENetOutgoingCommand *) enet_list_front (& peer -> sentReliableCommands);
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-
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- peer -> nextTimeout = outgoingCommand -> sentTime + outgoingCommand -> roundTripTimeout;
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-
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- return commandNumber;
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-}
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-
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-static ENetPeer *
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-enet_protocol_handle_connect (ENetHost * host, ENetProtocolHeader * header, ENetProtocol * command)
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+static ENetProtocolCommand enet_protocol_remove_sent_reliable_command(ENetPeer * peer,
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+ enet_uint16 reliableSequenceNumber, enet_uint8 channelID)
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{
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- enet_uint8 incomingSessionID, outgoingSessionID;
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- enet_uint32 mtu, windowSize;
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- ENetChannel * channel;
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- size_t channelCount;
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- ENetPeer * currentPeer;
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- ENetProtocol verifyCommand;
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-
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- channelCount = ENET_NET_TO_HOST_32 (command -> connect.channelCount);
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-
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- if (channelCount < ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT ||
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- channelCount > ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT)
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- return NULL;
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-
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- for (currentPeer = host -> peers;
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- currentPeer < & host -> peers [host -> peerCount];
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- ++ currentPeer)
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- {
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- if (currentPeer -> state != ENET_PEER_STATE_DISCONNECTED &&
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- currentPeer -> address.host == host -> receivedAddress.host &&
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- currentPeer -> address.port == host -> receivedAddress.port &&
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- currentPeer -> connectID == command -> connect.connectID)
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- return NULL;
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- }
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-
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- for (currentPeer = host -> peers;
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- currentPeer < & host -> peers [host -> peerCount];
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- ++ currentPeer)
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- {
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- if (currentPeer -> state == ENET_PEER_STATE_DISCONNECTED)
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- break;
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- }
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-
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- if (currentPeer >= & host -> peers [host -> peerCount])
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- return NULL;
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-
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- if (channelCount > host -> channelLimit)
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- channelCount = host -> channelLimit;
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- currentPeer -> channels = (ENetChannel *) enet_malloc (channelCount * sizeof (ENetChannel));
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|
|
- if (currentPeer -> channels == NULL)
|
|
|
- return NULL;
|
|
|
- currentPeer -> channelCount = channelCount;
|
|
|
- currentPeer -> state = ENET_PEER_STATE_ACKNOWLEDGING_CONNECT;
|
|
|
- currentPeer -> connectID = command -> connect.connectID;
|
|
|
- currentPeer -> address = host -> receivedAddress;
|
|
|
- currentPeer -> outgoingPeerID = ENET_NET_TO_HOST_16 (command -> connect.outgoingPeerID);
|
|
|
- currentPeer -> incomingBandwidth = ENET_NET_TO_HOST_32 (command -> connect.incomingBandwidth);
|
|
|
- currentPeer -> outgoingBandwidth = ENET_NET_TO_HOST_32 (command -> connect.outgoingBandwidth);
|
|
|
- currentPeer -> packetThrottleInterval = ENET_NET_TO_HOST_32 (command -> connect.packetThrottleInterval);
|
|
|
- currentPeer -> packetThrottleAcceleration = ENET_NET_TO_HOST_32 (command -> connect.packetThrottleAcceleration);
|
|
|
- currentPeer -> packetThrottleDeceleration = ENET_NET_TO_HOST_32 (command -> connect.packetThrottleDeceleration);
|
|
|
- currentPeer -> eventData = ENET_NET_TO_HOST_32 (command -> connect.data);
|
|
|
-
|
|
|
- incomingSessionID = command -> connect.incomingSessionID == 0xFF ? currentPeer -> outgoingSessionID : command -> connect.incomingSessionID;
|
|
|
- incomingSessionID = (incomingSessionID + 1) & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);
|
|
|
- if (incomingSessionID == currentPeer -> outgoingSessionID)
|
|
|
- incomingSessionID = (incomingSessionID + 1) & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);
|
|
|
- currentPeer -> outgoingSessionID = incomingSessionID;
|
|
|
-
|
|
|
- outgoingSessionID = command -> connect.outgoingSessionID == 0xFF ? currentPeer -> incomingSessionID : command -> connect.outgoingSessionID;
|
|
|
- outgoingSessionID = (outgoingSessionID + 1) & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);
|
|
|
- if (outgoingSessionID == currentPeer -> incomingSessionID)
|
|
|
- outgoingSessionID = (outgoingSessionID + 1) & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);
|
|
|
- currentPeer -> incomingSessionID = outgoingSessionID;
|
|
|
-
|
|
|
- for (channel = currentPeer -> channels;
|
|
|
- channel < & currentPeer -> channels [channelCount];
|
|
|
- ++ channel)
|
|
|
- {
|
|
|
- channel -> outgoingReliableSequenceNumber = 0;
|
|
|
- channel -> outgoingUnreliableSequenceNumber = 0;
|
|
|
- channel -> incomingReliableSequenceNumber = 0;
|
|
|
- channel -> incomingUnreliableSequenceNumber = 0;
|
|
|
-
|
|
|
- enet_list_clear (& channel -> incomingReliableCommands);
|
|
|
- enet_list_clear (& channel -> incomingUnreliableCommands);
|
|
|
-
|
|
|
- channel -> usedReliableWindows = 0;
|
|
|
- memset (channel -> reliableWindows, 0, sizeof (channel -> reliableWindows));
|
|
|
- }
|
|
|
-
|
|
|
- mtu = ENET_NET_TO_HOST_32 (command -> connect.mtu);
|
|
|
-
|
|
|
- if (mtu < ENET_PROTOCOL_MINIMUM_MTU)
|
|
|
- mtu = ENET_PROTOCOL_MINIMUM_MTU;
|
|
|
- else
|
|
|
- if (mtu > ENET_PROTOCOL_MAXIMUM_MTU)
|
|
|
- mtu = ENET_PROTOCOL_MAXIMUM_MTU;
|
|
|
-
|
|
|
- currentPeer -> mtu = mtu;
|
|
|
-
|
|
|
- if (host -> outgoingBandwidth == 0 &&
|
|
|
- currentPeer -> incomingBandwidth == 0)
|
|
|
- currentPeer -> windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
- else
|
|
|
- if (host -> outgoingBandwidth == 0 ||
|
|
|
- currentPeer -> incomingBandwidth == 0)
|
|
|
- currentPeer -> windowSize = (ENET_MAX (host -> outgoingBandwidth, currentPeer -> incomingBandwidth) /
|
|
|
- ENET_PEER_WINDOW_SIZE_SCALE) *
|
|
|
- ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
- else
|
|
|
- currentPeer -> windowSize = (ENET_MIN (host -> outgoingBandwidth, currentPeer -> incomingBandwidth) /
|
|
|
- ENET_PEER_WINDOW_SIZE_SCALE) *
|
|
|
- ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
-
|
|
|
- if (currentPeer -> windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
|
|
|
- currentPeer -> windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
- else
|
|
|
- if (currentPeer -> windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
|
|
|
- currentPeer -> windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
-
|
|
|
- if (host -> incomingBandwidth == 0)
|
|
|
- windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
- else
|
|
|
- windowSize = (host -> incomingBandwidth / ENET_PEER_WINDOW_SIZE_SCALE) *
|
|
|
- ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
-
|
|
|
- if (windowSize > ENET_NET_TO_HOST_32 (command -> connect.windowSize))
|
|
|
- windowSize = ENET_NET_TO_HOST_32 (command -> connect.windowSize);
|
|
|
-
|
|
|
- if (windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
|
|
|
- windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
- else
|
|
|
- if (windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
|
|
|
- windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
-
|
|
|
- verifyCommand.header.command = ENET_PROTOCOL_COMMAND_VERIFY_CONNECT | ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE;
|
|
|
- verifyCommand.header.channelID = 0xFF;
|
|
|
- verifyCommand.verifyConnect.outgoingPeerID = ENET_HOST_TO_NET_16 (currentPeer -> incomingPeerID);
|
|
|
- verifyCommand.verifyConnect.incomingSessionID = incomingSessionID;
|
|
|
- verifyCommand.verifyConnect.outgoingSessionID = outgoingSessionID;
|
|
|
- verifyCommand.verifyConnect.mtu = ENET_HOST_TO_NET_16 (currentPeer -> mtu);
|
|
|
- verifyCommand.verifyConnect.windowSize = ENET_HOST_TO_NET_32 (windowSize);
|
|
|
- verifyCommand.verifyConnect.channelCount = ENET_HOST_TO_NET_32 (channelCount);
|
|
|
- verifyCommand.verifyConnect.incomingBandwidth = ENET_HOST_TO_NET_32 (host -> incomingBandwidth);
|
|
|
- verifyCommand.verifyConnect.outgoingBandwidth = ENET_HOST_TO_NET_32 (host -> outgoingBandwidth);
|
|
|
- verifyCommand.verifyConnect.packetThrottleInterval = ENET_HOST_TO_NET_32 (currentPeer -> packetThrottleInterval);
|
|
|
- verifyCommand.verifyConnect.packetThrottleAcceleration = ENET_HOST_TO_NET_32 (currentPeer -> packetThrottleAcceleration);
|
|
|
- verifyCommand.verifyConnect.packetThrottleDeceleration = ENET_HOST_TO_NET_32 (currentPeer -> packetThrottleDeceleration);
|
|
|
- verifyCommand.verifyConnect.connectID = currentPeer -> connectID;
|
|
|
-
|
|
|
- enet_peer_queue_outgoing_command (currentPeer, & verifyCommand, NULL, 0, 0);
|
|
|
-
|
|
|
- return currentPeer;
|
|
|
+ ENetOutgoingCommand * outgoingCommand = NULL;
|
|
|
+ ENetListIterator currentCommand;
|
|
|
+ ENetProtocolCommand commandNumber;
|
|
|
+ int wasSent = 1;
|
|
|
+
|
|
|
+ for (currentCommand = enet_list_begin (& peer -> sentReliableCommands);
|
|
|
+ currentCommand != enet_list_end (& peer -> sentReliableCommands); currentCommand =
|
|
|
+ enet_list_next (currentCommand))
|
|
|
+ {
|
|
|
+ outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
+
|
|
|
+ if (outgoingCommand->reliableSequenceNumber == reliableSequenceNumber
|
|
|
+ && outgoingCommand->command.header.channelID == channelID)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (currentCommand == enet_list_end (& peer -> sentReliableCommands))
|
|
|
+ {
|
|
|
+ for (currentCommand = enet_list_begin (& peer -> outgoingReliableCommands);
|
|
|
+ currentCommand != enet_list_end (& peer -> outgoingReliableCommands);
|
|
|
+ currentCommand = enet_list_next (currentCommand))
|
|
|
+ {
|
|
|
+ outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
+
|
|
|
+ if (outgoingCommand->sendAttempts < 1)
|
|
|
+ return ENET_PROTOCOL_COMMAND_NONE;
|
|
|
+
|
|
|
+ if (outgoingCommand->reliableSequenceNumber == reliableSequenceNumber
|
|
|
+ && outgoingCommand->command.header.channelID == channelID)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (currentCommand == enet_list_end (& peer -> outgoingReliableCommands))
|
|
|
+ return ENET_PROTOCOL_COMMAND_NONE;
|
|
|
+
|
|
|
+ wasSent = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (channelID < peer->channelCount)
|
|
|
+ {
|
|
|
+ ENetChannel * channel = &peer->channels[channelID];
|
|
|
+ enet_uint16 reliableWindow = reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
|
|
|
+ if (channel->reliableWindows[reliableWindow] > 0)
|
|
|
+ {
|
|
|
+ --channel->reliableWindows[reliableWindow];
|
|
|
+ if (!channel->reliableWindows[reliableWindow])
|
|
|
+ channel->usedReliableWindows &= ~(1 << reliableWindow);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ commandNumber = (ENetProtocolCommand) (outgoingCommand->command.header.command
|
|
|
+ & ENET_PROTOCOL_COMMAND_MASK);
|
|
|
+
|
|
|
+ enet_list_remove(&outgoingCommand->outgoingCommandList);
|
|
|
+
|
|
|
+ if (outgoingCommand->packet != NULL)
|
|
|
+ {
|
|
|
+ if (wasSent)
|
|
|
+ peer->reliableDataInTransit -= outgoingCommand->fragmentLength;
|
|
|
+
|
|
|
+ --outgoingCommand->packet->referenceCount;
|
|
|
+
|
|
|
+ if (outgoingCommand->packet->referenceCount == 0)
|
|
|
+ enet_packet_destroy(outgoingCommand->packet);
|
|
|
+ }
|
|
|
+
|
|
|
+ enet_free(outgoingCommand);
|
|
|
+
|
|
|
+ if (enet_list_empty (& peer -> sentReliableCommands))
|
|
|
+ return commandNumber;
|
|
|
+
|
|
|
+ outgoingCommand = (ENetOutgoingCommand *) enet_list_front (& peer -> sentReliableCommands);
|
|
|
+
|
|
|
+ peer->nextTimeout = outgoingCommand->sentTime + outgoingCommand->roundTripTimeout;
|
|
|
+
|
|
|
+ return commandNumber;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_send_reliable (ENetHost * host, ENetPeer * peer, const ENetProtocol * command, enet_uint8 ** currentData)
|
|
|
+static ENetPeer *enet_protocol_handle_connect(ENetHost * host, ENetProtocolHeader * header, ENetProtocol * command)
|
|
|
{
|
|
|
- ENetPacket * packet;
|
|
|
- size_t dataLength;
|
|
|
-
|
|
|
- if (command -> header.channelID >= peer -> channelCount ||
|
|
|
- (peer -> state != ENET_PEER_STATE_CONNECTED && peer -> state != ENET_PEER_STATE_DISCONNECT_LATER))
|
|
|
- return -1;
|
|
|
-
|
|
|
- dataLength = ENET_NET_TO_HOST_16 (command -> sendReliable.dataLength);
|
|
|
- * currentData += dataLength;
|
|
|
- if (dataLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
|
|
|
- * currentData < host -> receivedData ||
|
|
|
- * currentData > & host -> receivedData [host -> receivedDataLength])
|
|
|
- return -1;
|
|
|
-
|
|
|
- packet = enet_packet_create ((const enet_uint8 *) command + sizeof (ENetProtocolSendReliable),
|
|
|
- dataLength,
|
|
|
- ENET_PACKET_FLAG_RELIABLE);
|
|
|
- if (packet == NULL ||
|
|
|
- enet_peer_queue_incoming_command (peer, command, packet, 0) == NULL)
|
|
|
- return -1;
|
|
|
-
|
|
|
- return 0;
|
|
|
+ enet_uint8 incomingSessionID, outgoingSessionID;
|
|
|
+ enet_uint32 mtu, windowSize;
|
|
|
+ ENetChannel * channel;
|
|
|
+ size_t channelCount;
|
|
|
+ ENetPeer * currentPeer;
|
|
|
+ ENetProtocol verifyCommand;
|
|
|
+
|
|
|
+ channelCount = ENET_NET_TO_HOST_32 (command -> connect.channelCount);
|
|
|
+
|
|
|
+ if (channelCount < ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT
|
|
|
+ || channelCount > ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT)
|
|
|
+ return NULL;
|
|
|
+
|
|
|
+ for (currentPeer = host->peers; currentPeer < &host->peers[host->peerCount]; ++currentPeer)
|
|
|
+ {
|
|
|
+ if (currentPeer->state != ENET_PEER_STATE_DISCONNECTED
|
|
|
+ && currentPeer->address.host == host->receivedAddress.host
|
|
|
+ && currentPeer->address.port == host->receivedAddress.port
|
|
|
+ && currentPeer->connectID == command->connect.connectID)
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ for (currentPeer = host->peers; currentPeer < &host->peers[host->peerCount]; ++currentPeer)
|
|
|
+ {
|
|
|
+ if (currentPeer->state == ENET_PEER_STATE_DISCONNECTED)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (currentPeer >= &host->peers[host->peerCount])
|
|
|
+ return NULL;
|
|
|
+
|
|
|
+ if (channelCount > host->channelLimit)
|
|
|
+ channelCount = host->channelLimit;
|
|
|
+ currentPeer->channels = (ENetChannel *) enet_malloc(channelCount * sizeof(ENetChannel));
|
|
|
+ if (currentPeer->channels == NULL)
|
|
|
+ return NULL;
|
|
|
+ currentPeer->channelCount = channelCount;
|
|
|
+ currentPeer->state = ENET_PEER_STATE_ACKNOWLEDGING_CONNECT;
|
|
|
+ currentPeer->connectID = command->connect.connectID;
|
|
|
+ currentPeer->address = host->receivedAddress;
|
|
|
+ currentPeer->outgoingPeerID = ENET_NET_TO_HOST_16 (command -> connect.outgoingPeerID);
|
|
|
+ currentPeer->incomingBandwidth = ENET_NET_TO_HOST_32 (command -> connect.incomingBandwidth);
|
|
|
+ currentPeer->outgoingBandwidth = ENET_NET_TO_HOST_32 (command -> connect.outgoingBandwidth);
|
|
|
+ currentPeer->packetThrottleInterval =
|
|
|
+ ENET_NET_TO_HOST_32 (command -> connect.packetThrottleInterval);
|
|
|
+ currentPeer->packetThrottleAcceleration =
|
|
|
+ ENET_NET_TO_HOST_32 (command -> connect.packetThrottleAcceleration);
|
|
|
+ currentPeer->packetThrottleDeceleration =
|
|
|
+ ENET_NET_TO_HOST_32 (command -> connect.packetThrottleDeceleration);
|
|
|
+ currentPeer->eventData = ENET_NET_TO_HOST_32 (command -> connect.data);
|
|
|
+
|
|
|
+ incomingSessionID =
|
|
|
+ command->connect.incomingSessionID == 0xFF ?
|
|
|
+ currentPeer->outgoingSessionID : command->connect.incomingSessionID;
|
|
|
+ incomingSessionID = (incomingSessionID + 1)
|
|
|
+ & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);
|
|
|
+ if (incomingSessionID == currentPeer->outgoingSessionID)
|
|
|
+ incomingSessionID = (incomingSessionID + 1)
|
|
|
+ & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);
|
|
|
+ currentPeer->outgoingSessionID = incomingSessionID;
|
|
|
+
|
|
|
+ outgoingSessionID =
|
|
|
+ command->connect.outgoingSessionID == 0xFF ?
|
|
|
+ currentPeer->incomingSessionID : command->connect.outgoingSessionID;
|
|
|
+ outgoingSessionID = (outgoingSessionID + 1)
|
|
|
+ & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);
|
|
|
+ if (outgoingSessionID == currentPeer->incomingSessionID)
|
|
|
+ outgoingSessionID = (outgoingSessionID + 1)
|
|
|
+ & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);
|
|
|
+ currentPeer->incomingSessionID = outgoingSessionID;
|
|
|
+
|
|
|
+ for (channel = currentPeer->channels; channel < ¤tPeer->channels[channelCount]; ++channel)
|
|
|
+ {
|
|
|
+ channel->outgoingReliableSequenceNumber = 0;
|
|
|
+ channel->outgoingUnreliableSequenceNumber = 0;
|
|
|
+ channel->incomingReliableSequenceNumber = 0;
|
|
|
+ channel->incomingUnreliableSequenceNumber = 0;
|
|
|
+
|
|
|
+ enet_list_clear(&channel->incomingReliableCommands);
|
|
|
+ enet_list_clear(&channel->incomingUnreliableCommands);
|
|
|
+
|
|
|
+ channel->usedReliableWindows = 0;
|
|
|
+ memset(channel->reliableWindows, 0, sizeof(channel->reliableWindows));
|
|
|
+ }
|
|
|
+
|
|
|
+ mtu = ENET_NET_TO_HOST_32 (command -> connect.mtu);
|
|
|
+
|
|
|
+ if (mtu < ENET_PROTOCOL_MINIMUM_MTU)
|
|
|
+ mtu = ENET_PROTOCOL_MINIMUM_MTU;
|
|
|
+ else if (mtu > ENET_PROTOCOL_MAXIMUM_MTU)
|
|
|
+ mtu = ENET_PROTOCOL_MAXIMUM_MTU;
|
|
|
+
|
|
|
+ currentPeer->mtu = mtu;
|
|
|
+
|
|
|
+ if (host->outgoingBandwidth == 0 && currentPeer->incomingBandwidth == 0)
|
|
|
+ currentPeer->windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
+ else if (host->outgoingBandwidth == 0 || currentPeer->incomingBandwidth == 0)
|
|
|
+ currentPeer->windowSize = (
|
|
|
+ ENET_MAX (host -> outgoingBandwidth, currentPeer -> incomingBandwidth)
|
|
|
+ / ENET_PEER_WINDOW_SIZE_SCALE) * ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
+ else
|
|
|
+ currentPeer->windowSize = (
|
|
|
+ ENET_MIN (host -> outgoingBandwidth, currentPeer -> incomingBandwidth)
|
|
|
+ / ENET_PEER_WINDOW_SIZE_SCALE) * ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
+
|
|
|
+ if (currentPeer->windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
|
|
|
+ currentPeer->windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
+ else if (currentPeer->windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
|
|
|
+ currentPeer->windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
+
|
|
|
+ if (host->incomingBandwidth == 0)
|
|
|
+ windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
+ else
|
|
|
+ windowSize = (host->incomingBandwidth / ENET_PEER_WINDOW_SIZE_SCALE)
|
|
|
+ * ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
+
|
|
|
+ if (windowSize > ENET_NET_TO_HOST_32 (command -> connect.windowSize))
|
|
|
+ windowSize = ENET_NET_TO_HOST_32 (command -> connect.windowSize);
|
|
|
+
|
|
|
+ if (windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
|
|
|
+ windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
+ else if (windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
|
|
|
+ windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
+
|
|
|
+ verifyCommand.header.command = ENET_PROTOCOL_COMMAND_VERIFY_CONNECT
|
|
|
+ | ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE;
|
|
|
+ verifyCommand.header.channelID = 0xFF;
|
|
|
+ verifyCommand.verifyConnect.outgoingPeerID =
|
|
|
+ ENET_HOST_TO_NET_16 (currentPeer -> incomingPeerID);
|
|
|
+ verifyCommand.verifyConnect.incomingSessionID = incomingSessionID;
|
|
|
+ verifyCommand.verifyConnect.outgoingSessionID = outgoingSessionID;
|
|
|
+ verifyCommand.verifyConnect.mtu = ENET_HOST_TO_NET_16 (currentPeer -> mtu);
|
|
|
+ verifyCommand.verifyConnect.windowSize = ENET_HOST_TO_NET_32 (windowSize);
|
|
|
+ verifyCommand.verifyConnect.channelCount = ENET_HOST_TO_NET_32 (channelCount);
|
|
|
+ verifyCommand.verifyConnect.incomingBandwidth = ENET_HOST_TO_NET_32 (host -> incomingBandwidth);
|
|
|
+ verifyCommand.verifyConnect.outgoingBandwidth = ENET_HOST_TO_NET_32 (host -> outgoingBandwidth);
|
|
|
+ verifyCommand.verifyConnect.packetThrottleInterval =
|
|
|
+ ENET_HOST_TO_NET_32 (currentPeer -> packetThrottleInterval);
|
|
|
+ verifyCommand.verifyConnect.packetThrottleAcceleration =
|
|
|
+ ENET_HOST_TO_NET_32 (currentPeer -> packetThrottleAcceleration);
|
|
|
+ verifyCommand.verifyConnect.packetThrottleDeceleration =
|
|
|
+ ENET_HOST_TO_NET_32 (currentPeer -> packetThrottleDeceleration);
|
|
|
+ verifyCommand.verifyConnect.connectID = currentPeer->connectID;
|
|
|
+
|
|
|
+ enet_peer_queue_outgoing_command(currentPeer, &verifyCommand, NULL, 0, 0);
|
|
|
+
|
|
|
+ return currentPeer;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_send_unsequenced (ENetHost * host, ENetPeer * peer, const ENetProtocol * command, enet_uint8 ** currentData)
|
|
|
+static int enet_protocol_handle_send_reliable(ENetHost * host, ENetPeer * peer,
|
|
|
+ const ENetProtocol * command, enet_uint8 ** currentData)
|
|
|
{
|
|
|
- ENetPacket * packet;
|
|
|
- enet_uint32 unsequencedGroup, index;
|
|
|
- size_t dataLength;
|
|
|
-
|
|
|
- if (command -> header.channelID >= peer -> channelCount ||
|
|
|
- (peer -> state != ENET_PEER_STATE_CONNECTED && peer -> state != ENET_PEER_STATE_DISCONNECT_LATER))
|
|
|
- return -1;
|
|
|
-
|
|
|
- dataLength = ENET_NET_TO_HOST_16 (command -> sendUnsequenced.dataLength);
|
|
|
- * currentData += dataLength;
|
|
|
- if (dataLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
|
|
|
- * currentData < host -> receivedData ||
|
|
|
- * currentData > & host -> receivedData [host -> receivedDataLength])
|
|
|
- return -1;
|
|
|
-
|
|
|
- unsequencedGroup = ENET_NET_TO_HOST_16 (command -> sendUnsequenced.unsequencedGroup);
|
|
|
- index = unsequencedGroup % ENET_PEER_UNSEQUENCED_WINDOW_SIZE;
|
|
|
-
|
|
|
- if (unsequencedGroup < peer -> incomingUnsequencedGroup)
|
|
|
- unsequencedGroup += 0x10000;
|
|
|
-
|
|
|
- if (unsequencedGroup >= (enet_uint32) peer -> incomingUnsequencedGroup + ENET_PEER_FREE_UNSEQUENCED_WINDOWS * ENET_PEER_UNSEQUENCED_WINDOW_SIZE)
|
|
|
- return 0;
|
|
|
-
|
|
|
- unsequencedGroup &= 0xFFFF;
|
|
|
-
|
|
|
- if (unsequencedGroup - index != peer -> incomingUnsequencedGroup)
|
|
|
- {
|
|
|
- peer -> incomingUnsequencedGroup = unsequencedGroup - index;
|
|
|
-
|
|
|
- memset (peer -> unsequencedWindow, 0, sizeof (peer -> unsequencedWindow));
|
|
|
- }
|
|
|
- else
|
|
|
- if (peer -> unsequencedWindow [index / 32] & (1 << (index % 32)))
|
|
|
- return 0;
|
|
|
-
|
|
|
- packet = enet_packet_create ((const enet_uint8 *) command + sizeof (ENetProtocolSendUnsequenced),
|
|
|
- dataLength,
|
|
|
- ENET_PACKET_FLAG_UNSEQUENCED);
|
|
|
- if (packet == NULL ||
|
|
|
- enet_peer_queue_incoming_command (peer, command, packet, 0) == NULL)
|
|
|
- return -1;
|
|
|
-
|
|
|
- peer -> unsequencedWindow [index / 32] |= 1 << (index % 32);
|
|
|
-
|
|
|
- return 0;
|
|
|
+ ENetPacket * packet;
|
|
|
+ size_t dataLength;
|
|
|
+
|
|
|
+ if (command->header.channelID >= peer->channelCount
|
|
|
+ || (peer->state != ENET_PEER_STATE_CONNECTED
|
|
|
+ && peer->state != ENET_PEER_STATE_DISCONNECT_LATER))
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ dataLength = ENET_NET_TO_HOST_16 (command -> sendReliable.dataLength);
|
|
|
+ *currentData += dataLength;
|
|
|
+ if (dataLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE || *currentData < host->receivedData
|
|
|
+ || *currentData > &host->receivedData[host->receivedDataLength])
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ packet = enet_packet_create((const enet_uint8 *) command + sizeof(ENetProtocolSendReliable),
|
|
|
+ dataLength, ENET_PACKET_FLAG_RELIABLE);
|
|
|
+ if (packet == NULL || enet_peer_queue_incoming_command(peer, command, packet, 0) == NULL)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_send_unreliable (ENetHost * host, ENetPeer * peer, const ENetProtocol * command, enet_uint8 ** currentData)
|
|
|
+static int enet_protocol_handle_send_unsequenced(ENetHost * host, ENetPeer * peer,
|
|
|
+ const ENetProtocol * command, enet_uint8 ** currentData)
|
|
|
{
|
|
|
- ENetPacket * packet;
|
|
|
- size_t dataLength;
|
|
|
-
|
|
|
- if (command -> header.channelID >= peer -> channelCount ||
|
|
|
- (peer -> state != ENET_PEER_STATE_CONNECTED && peer -> state != ENET_PEER_STATE_DISCONNECT_LATER))
|
|
|
- return -1;
|
|
|
-
|
|
|
- dataLength = ENET_NET_TO_HOST_16 (command -> sendUnreliable.dataLength);
|
|
|
- * currentData += dataLength;
|
|
|
- if (dataLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
|
|
|
- * currentData < host -> receivedData ||
|
|
|
- * currentData > & host -> receivedData [host -> receivedDataLength])
|
|
|
- return -1;
|
|
|
-
|
|
|
- packet = enet_packet_create ((const enet_uint8 *) command + sizeof (ENetProtocolSendUnreliable),
|
|
|
- dataLength,
|
|
|
- 0);
|
|
|
- if (packet == NULL ||
|
|
|
- enet_peer_queue_incoming_command (peer, command, packet, 0) == NULL)
|
|
|
- return -1;
|
|
|
-
|
|
|
- return 0;
|
|
|
+ ENetPacket * packet;
|
|
|
+ enet_uint32 unsequencedGroup, index;
|
|
|
+ size_t dataLength;
|
|
|
+
|
|
|
+ if (command->header.channelID >= peer->channelCount
|
|
|
+ || (peer->state != ENET_PEER_STATE_CONNECTED
|
|
|
+ && peer->state != ENET_PEER_STATE_DISCONNECT_LATER))
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ dataLength = ENET_NET_TO_HOST_16 (command -> sendUnsequenced.dataLength);
|
|
|
+ *currentData += dataLength;
|
|
|
+ if (dataLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE || *currentData < host->receivedData
|
|
|
+ || *currentData > &host->receivedData[host->receivedDataLength])
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ unsequencedGroup = ENET_NET_TO_HOST_16 (command -> sendUnsequenced.unsequencedGroup);
|
|
|
+ index = unsequencedGroup % ENET_PEER_UNSEQUENCED_WINDOW_SIZE;
|
|
|
+
|
|
|
+ if (unsequencedGroup < peer->incomingUnsequencedGroup)
|
|
|
+ unsequencedGroup += 0x10000;
|
|
|
+
|
|
|
+ if (unsequencedGroup
|
|
|
+ >= (enet_uint32) peer->incomingUnsequencedGroup
|
|
|
+ + ENET_PEER_FREE_UNSEQUENCED_WINDOWS * ENET_PEER_UNSEQUENCED_WINDOW_SIZE)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ unsequencedGroup &= 0xFFFF;
|
|
|
+
|
|
|
+ if (unsequencedGroup - index != peer->incomingUnsequencedGroup)
|
|
|
+ {
|
|
|
+ peer->incomingUnsequencedGroup = unsequencedGroup - index;
|
|
|
+
|
|
|
+ memset(peer->unsequencedWindow, 0, sizeof(peer->unsequencedWindow));
|
|
|
+ }
|
|
|
+ else if (peer->unsequencedWindow[index / 32] & (1 << (index % 32)))
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ packet = enet_packet_create((const enet_uint8 *) command + sizeof(ENetProtocolSendUnsequenced),
|
|
|
+ dataLength, ENET_PACKET_FLAG_UNSEQUENCED);
|
|
|
+ if (packet == NULL || enet_peer_queue_incoming_command(peer, command, packet, 0) == NULL)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ peer->unsequencedWindow[index / 32] |= 1 << (index % 32);
|
|
|
+
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_send_fragment (ENetHost * host, ENetPeer * peer, const ENetProtocol * command, enet_uint8 ** currentData)
|
|
|
+static int enet_protocol_handle_send_unreliable(ENetHost * host, ENetPeer * peer,
|
|
|
+ const ENetProtocol * command, enet_uint8 ** currentData)
|
|
|
{
|
|
|
- enet_uint32 fragmentNumber,
|
|
|
- fragmentCount,
|
|
|
- fragmentOffset,
|
|
|
- fragmentLength,
|
|
|
- startSequenceNumber,
|
|
|
- totalLength;
|
|
|
- ENetChannel * channel;
|
|
|
- enet_uint16 startWindow, currentWindow;
|
|
|
- ENetListIterator currentCommand;
|
|
|
- ENetIncomingCommand * startCommand = NULL;
|
|
|
-
|
|
|
- if (command -> header.channelID >= peer -> channelCount ||
|
|
|
- (peer -> state != ENET_PEER_STATE_CONNECTED && peer -> state != ENET_PEER_STATE_DISCONNECT_LATER))
|
|
|
- return -1;
|
|
|
-
|
|
|
- fragmentLength = ENET_NET_TO_HOST_16 (command -> sendFragment.dataLength);
|
|
|
- * currentData += fragmentLength;
|
|
|
- if (fragmentLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
|
|
|
- * currentData < host -> receivedData ||
|
|
|
- * currentData > & host -> receivedData [host -> receivedDataLength])
|
|
|
- return -1;
|
|
|
-
|
|
|
- channel = & peer -> channels [command -> header.channelID];
|
|
|
- startSequenceNumber = ENET_NET_TO_HOST_16 (command -> sendFragment.startSequenceNumber);
|
|
|
- startWindow = startSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
|
|
|
- currentWindow = channel -> incomingReliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
|
|
|
-
|
|
|
- if (startSequenceNumber < channel -> incomingReliableSequenceNumber)
|
|
|
- startWindow += ENET_PEER_RELIABLE_WINDOWS;
|
|
|
-
|
|
|
- if (startWindow < currentWindow || startWindow >= currentWindow + ENET_PEER_FREE_RELIABLE_WINDOWS - 1)
|
|
|
- return 0;
|
|
|
-
|
|
|
- fragmentNumber = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentNumber);
|
|
|
- fragmentCount = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentCount);
|
|
|
- fragmentOffset = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentOffset);
|
|
|
- totalLength = ENET_NET_TO_HOST_32 (command -> sendFragment.totalLength);
|
|
|
-
|
|
|
- if (fragmentCount > ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT ||
|
|
|
- fragmentNumber >= fragmentCount ||
|
|
|
- totalLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
|
|
|
- fragmentOffset >= totalLength ||
|
|
|
- fragmentLength > totalLength - fragmentOffset)
|
|
|
- return -1;
|
|
|
-
|
|
|
- for (currentCommand = enet_list_previous (enet_list_end (& channel -> incomingReliableCommands));
|
|
|
- currentCommand != enet_list_end (& channel -> incomingReliableCommands);
|
|
|
- currentCommand = enet_list_previous (currentCommand))
|
|
|
- {
|
|
|
- ENetIncomingCommand * incomingCommand = (ENetIncomingCommand *) currentCommand;
|
|
|
-
|
|
|
- if (startSequenceNumber >= channel -> incomingReliableSequenceNumber)
|
|
|
- {
|
|
|
- if (incomingCommand -> reliableSequenceNumber < channel -> incomingReliableSequenceNumber)
|
|
|
- continue;
|
|
|
- }
|
|
|
- else
|
|
|
- if (incomingCommand -> reliableSequenceNumber >= channel -> incomingReliableSequenceNumber)
|
|
|
- break;
|
|
|
-
|
|
|
- if (incomingCommand -> reliableSequenceNumber <= startSequenceNumber)
|
|
|
- {
|
|
|
- if (incomingCommand -> reliableSequenceNumber < startSequenceNumber)
|
|
|
- break;
|
|
|
-
|
|
|
- if ((incomingCommand -> command.header.command & ENET_PROTOCOL_COMMAND_MASK) != ENET_PROTOCOL_COMMAND_SEND_FRAGMENT ||
|
|
|
- totalLength != incomingCommand -> packet -> dataLength ||
|
|
|
- fragmentCount != incomingCommand -> fragmentCount)
|
|
|
- return -1;
|
|
|
-
|
|
|
- startCommand = incomingCommand;
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (startCommand == NULL)
|
|
|
- {
|
|
|
- ENetProtocol hostCommand = * command;
|
|
|
- ENetPacket * packet = enet_packet_create (NULL, totalLength, ENET_PACKET_FLAG_RELIABLE);
|
|
|
- if (packet == NULL)
|
|
|
- return -1;
|
|
|
-
|
|
|
- hostCommand.header.reliableSequenceNumber = startSequenceNumber;
|
|
|
-
|
|
|
- startCommand = enet_peer_queue_incoming_command (peer, & hostCommand, packet, fragmentCount);
|
|
|
- if (startCommand == NULL)
|
|
|
- return -1;
|
|
|
- }
|
|
|
-
|
|
|
- if ((startCommand -> fragments [fragmentNumber / 32] & (1 << (fragmentNumber % 32))) == 0)
|
|
|
- {
|
|
|
- -- startCommand -> fragmentsRemaining;
|
|
|
-
|
|
|
- startCommand -> fragments [fragmentNumber / 32] |= (1 << (fragmentNumber % 32));
|
|
|
-
|
|
|
- if (fragmentOffset + fragmentLength > startCommand -> packet -> dataLength)
|
|
|
- fragmentLength = startCommand -> packet -> dataLength - fragmentOffset;
|
|
|
-
|
|
|
- memcpy (startCommand -> packet -> data + fragmentOffset,
|
|
|
- (enet_uint8 *) command + sizeof (ENetProtocolSendFragment),
|
|
|
- fragmentLength);
|
|
|
-
|
|
|
- if (startCommand -> fragmentsRemaining <= 0)
|
|
|
- enet_peer_dispatch_incoming_reliable_commands (peer, channel);
|
|
|
- }
|
|
|
-
|
|
|
- return 0;
|
|
|
+ ENetPacket * packet;
|
|
|
+ size_t dataLength;
|
|
|
+
|
|
|
+ if (command->header.channelID >= peer->channelCount
|
|
|
+ || (peer->state != ENET_PEER_STATE_CONNECTED
|
|
|
+ && peer->state != ENET_PEER_STATE_DISCONNECT_LATER))
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ dataLength = ENET_NET_TO_HOST_16 (command -> sendUnreliable.dataLength);
|
|
|
+ *currentData += dataLength;
|
|
|
+ if (dataLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE || *currentData < host->receivedData
|
|
|
+ || *currentData > &host->receivedData[host->receivedDataLength])
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ packet = enet_packet_create((const enet_uint8 *) command + sizeof(ENetProtocolSendUnreliable),
|
|
|
+ dataLength, 0);
|
|
|
+ if (packet == NULL || enet_peer_queue_incoming_command(peer, command, packet, 0) == NULL)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_send_unreliable_fragment (ENetHost * host, ENetPeer * peer, const ENetProtocol * command, enet_uint8 ** currentData)
|
|
|
+static int enet_protocol_handle_send_fragment(ENetHost * host, ENetPeer * peer,
|
|
|
+ const ENetProtocol * command, enet_uint8 ** currentData)
|
|
|
{
|
|
|
- enet_uint32 fragmentNumber,
|
|
|
- fragmentCount,
|
|
|
- fragmentOffset,
|
|
|
- fragmentLength,
|
|
|
- reliableSequenceNumber,
|
|
|
- startSequenceNumber,
|
|
|
- totalLength;
|
|
|
- enet_uint16 reliableWindow, currentWindow;
|
|
|
- ENetChannel * channel;
|
|
|
- ENetListIterator currentCommand;
|
|
|
- ENetIncomingCommand * startCommand = NULL;
|
|
|
-
|
|
|
- if (command -> header.channelID >= peer -> channelCount ||
|
|
|
- (peer -> state != ENET_PEER_STATE_CONNECTED && peer -> state != ENET_PEER_STATE_DISCONNECT_LATER))
|
|
|
- return -1;
|
|
|
-
|
|
|
- fragmentLength = ENET_NET_TO_HOST_16 (command -> sendFragment.dataLength);
|
|
|
- * currentData += fragmentLength;
|
|
|
- if (fragmentLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
|
|
|
- * currentData < host -> receivedData ||
|
|
|
- * currentData > & host -> receivedData [host -> receivedDataLength])
|
|
|
- return -1;
|
|
|
-
|
|
|
- channel = & peer -> channels [command -> header.channelID];
|
|
|
- reliableSequenceNumber = command -> header.reliableSequenceNumber;
|
|
|
- startSequenceNumber = ENET_NET_TO_HOST_16 (command -> sendFragment.startSequenceNumber);
|
|
|
-
|
|
|
- reliableWindow = reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
|
|
|
- currentWindow = channel -> incomingReliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
|
|
|
-
|
|
|
- if (reliableSequenceNumber < channel -> incomingReliableSequenceNumber)
|
|
|
- reliableWindow += ENET_PEER_RELIABLE_WINDOWS;
|
|
|
-
|
|
|
- if (reliableWindow < currentWindow || reliableWindow >= currentWindow + ENET_PEER_FREE_RELIABLE_WINDOWS - 1)
|
|
|
- return 0;
|
|
|
-
|
|
|
- if (reliableSequenceNumber == channel -> incomingReliableSequenceNumber &&
|
|
|
- startSequenceNumber <= channel -> incomingUnreliableSequenceNumber)
|
|
|
- return 0;
|
|
|
-
|
|
|
- fragmentNumber = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentNumber);
|
|
|
- fragmentCount = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentCount);
|
|
|
- fragmentOffset = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentOffset);
|
|
|
- totalLength = ENET_NET_TO_HOST_32 (command -> sendFragment.totalLength);
|
|
|
-
|
|
|
- if (fragmentCount > ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT ||
|
|
|
- fragmentNumber >= fragmentCount ||
|
|
|
- totalLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE ||
|
|
|
- fragmentOffset >= totalLength ||
|
|
|
- fragmentLength > totalLength - fragmentOffset)
|
|
|
- return -1;
|
|
|
-
|
|
|
- for (currentCommand = enet_list_previous (enet_list_end (& channel -> incomingUnreliableCommands));
|
|
|
- currentCommand != enet_list_end (& channel -> incomingUnreliableCommands);
|
|
|
- currentCommand = enet_list_previous (currentCommand))
|
|
|
- {
|
|
|
- ENetIncomingCommand * incomingCommand = (ENetIncomingCommand *) currentCommand;
|
|
|
-
|
|
|
- if (reliableSequenceNumber >= channel -> incomingReliableSequenceNumber)
|
|
|
- {
|
|
|
- if (incomingCommand -> reliableSequenceNumber < channel -> incomingReliableSequenceNumber)
|
|
|
- continue;
|
|
|
- }
|
|
|
- else
|
|
|
- if (incomingCommand -> reliableSequenceNumber >= channel -> incomingReliableSequenceNumber)
|
|
|
- break;
|
|
|
-
|
|
|
- if (incomingCommand -> reliableSequenceNumber < reliableSequenceNumber)
|
|
|
- break;
|
|
|
-
|
|
|
- if (incomingCommand -> reliableSequenceNumber > reliableSequenceNumber)
|
|
|
- continue;
|
|
|
-
|
|
|
- if (incomingCommand -> unreliableSequenceNumber <= startSequenceNumber)
|
|
|
- {
|
|
|
- if (incomingCommand -> unreliableSequenceNumber < startSequenceNumber)
|
|
|
- break;
|
|
|
-
|
|
|
- if ((incomingCommand -> command.header.command & ENET_PROTOCOL_COMMAND_MASK) != ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE_FRAGMENT ||
|
|
|
- totalLength != incomingCommand -> packet -> dataLength ||
|
|
|
- fragmentCount != incomingCommand -> fragmentCount)
|
|
|
- return -1;
|
|
|
-
|
|
|
- startCommand = incomingCommand;
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (startCommand == NULL)
|
|
|
- {
|
|
|
- ENetPacket * packet = enet_packet_create (NULL, totalLength, ENET_PACKET_FLAG_UNRELIABLE_FRAGMENT);
|
|
|
- if (packet == NULL)
|
|
|
- return -1;
|
|
|
-
|
|
|
- startCommand = enet_peer_queue_incoming_command (peer, command, packet, fragmentCount);
|
|
|
- if (startCommand == NULL)
|
|
|
- return -1;
|
|
|
- }
|
|
|
-
|
|
|
- if ((startCommand -> fragments [fragmentNumber / 32] & (1 << (fragmentNumber % 32))) == 0)
|
|
|
- {
|
|
|
- -- startCommand -> fragmentsRemaining;
|
|
|
-
|
|
|
- startCommand -> fragments [fragmentNumber / 32] |= (1 << (fragmentNumber % 32));
|
|
|
-
|
|
|
- if (fragmentOffset + fragmentLength > startCommand -> packet -> dataLength)
|
|
|
- fragmentLength = startCommand -> packet -> dataLength - fragmentOffset;
|
|
|
-
|
|
|
- memcpy (startCommand -> packet -> data + fragmentOffset,
|
|
|
- (enet_uint8 *) command + sizeof (ENetProtocolSendFragment),
|
|
|
- fragmentLength);
|
|
|
-
|
|
|
- if (startCommand -> fragmentsRemaining <= 0)
|
|
|
- enet_peer_dispatch_incoming_unreliable_commands (peer, channel);
|
|
|
- }
|
|
|
-
|
|
|
- return 0;
|
|
|
+ enet_uint32 fragmentNumber, fragmentCount, fragmentOffset, fragmentLength, startSequenceNumber,
|
|
|
+ totalLength;
|
|
|
+ ENetChannel * channel;
|
|
|
+ enet_uint16 startWindow, currentWindow;
|
|
|
+ ENetListIterator currentCommand;
|
|
|
+ ENetIncomingCommand * startCommand = NULL;
|
|
|
+
|
|
|
+ if (command->header.channelID >= peer->channelCount
|
|
|
+ || (peer->state != ENET_PEER_STATE_CONNECTED
|
|
|
+ && peer->state != ENET_PEER_STATE_DISCONNECT_LATER))
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ fragmentLength = ENET_NET_TO_HOST_16 (command -> sendFragment.dataLength);
|
|
|
+ *currentData += fragmentLength;
|
|
|
+ if (fragmentLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE || *currentData < host->receivedData
|
|
|
+ || *currentData > &host->receivedData[host->receivedDataLength])
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ channel = &peer->channels[command->header.channelID];
|
|
|
+ startSequenceNumber = ENET_NET_TO_HOST_16 (command -> sendFragment.startSequenceNumber);
|
|
|
+ startWindow = startSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
|
|
|
+ currentWindow = channel->incomingReliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
|
|
|
+
|
|
|
+ if (startSequenceNumber < channel->incomingReliableSequenceNumber)
|
|
|
+ startWindow += ENET_PEER_RELIABLE_WINDOWS;
|
|
|
+
|
|
|
+ if (startWindow < currentWindow
|
|
|
+ || startWindow >= currentWindow + ENET_PEER_FREE_RELIABLE_WINDOWS - 1)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ fragmentNumber = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentNumber);
|
|
|
+ fragmentCount = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentCount);
|
|
|
+ fragmentOffset = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentOffset);
|
|
|
+ totalLength = ENET_NET_TO_HOST_32 (command -> sendFragment.totalLength);
|
|
|
+
|
|
|
+ if (fragmentCount > ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT || fragmentNumber >= fragmentCount
|
|
|
+ || totalLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE || fragmentOffset >= totalLength
|
|
|
+ || fragmentLength > totalLength - fragmentOffset)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ for (currentCommand = enet_list_previous (enet_list_end (& channel -> incomingReliableCommands));
|
|
|
+ currentCommand != enet_list_end (& channel -> incomingReliableCommands);
|
|
|
+ currentCommand = enet_list_previous (currentCommand))
|
|
|
+ {
|
|
|
+ ENetIncomingCommand * incomingCommand = (ENetIncomingCommand *) currentCommand;
|
|
|
+
|
|
|
+ if (startSequenceNumber >= channel->incomingReliableSequenceNumber)
|
|
|
+ {
|
|
|
+ if (incomingCommand->reliableSequenceNumber < channel->incomingReliableSequenceNumber)
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ else if (incomingCommand->reliableSequenceNumber >= channel->incomingReliableSequenceNumber)
|
|
|
+ break;
|
|
|
+
|
|
|
+ if (incomingCommand->reliableSequenceNumber <= startSequenceNumber)
|
|
|
+ {
|
|
|
+ if (incomingCommand->reliableSequenceNumber < startSequenceNumber)
|
|
|
+ break;
|
|
|
+
|
|
|
+ if ((incomingCommand->command.header.command & ENET_PROTOCOL_COMMAND_MASK)
|
|
|
+ != ENET_PROTOCOL_COMMAND_SEND_FRAGMENT
|
|
|
+ || totalLength != incomingCommand->packet->dataLength
|
|
|
+ || fragmentCount != incomingCommand->fragmentCount)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ startCommand = incomingCommand;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (startCommand == NULL)
|
|
|
+ {
|
|
|
+ ENetProtocol hostCommand = *command;
|
|
|
+ ENetPacket * packet = enet_packet_create(NULL, totalLength, ENET_PACKET_FLAG_RELIABLE);
|
|
|
+ if (packet == NULL)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ hostCommand.header.reliableSequenceNumber = startSequenceNumber;
|
|
|
+
|
|
|
+ startCommand = enet_peer_queue_incoming_command(peer, &hostCommand, packet, fragmentCount);
|
|
|
+ if (startCommand == NULL)
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((startCommand->fragments[fragmentNumber / 32] & (1 << (fragmentNumber % 32))) == 0)
|
|
|
+ {
|
|
|
+ --startCommand->fragmentsRemaining;
|
|
|
+
|
|
|
+ startCommand->fragments[fragmentNumber / 32] |= (1 << (fragmentNumber % 32));
|
|
|
+
|
|
|
+ if (fragmentOffset + fragmentLength > startCommand->packet->dataLength)
|
|
|
+ fragmentLength = startCommand->packet->dataLength - fragmentOffset;
|
|
|
+
|
|
|
+ memcpy(startCommand->packet->data + fragmentOffset,
|
|
|
+ (enet_uint8 *) command + sizeof(ENetProtocolSendFragment), fragmentLength);
|
|
|
+
|
|
|
+ if (startCommand->fragmentsRemaining <= 0)
|
|
|
+ enet_peer_dispatch_incoming_reliable_commands(peer, channel);
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_ping (ENetHost * host, ENetPeer * peer, const ENetProtocol * command)
|
|
|
+static int enet_protocol_handle_send_unreliable_fragment(ENetHost * host, ENetPeer * peer,
|
|
|
+ const ENetProtocol * command, enet_uint8 ** currentData)
|
|
|
{
|
|
|
- return 0;
|
|
|
+ enet_uint32 fragmentNumber, fragmentCount, fragmentOffset, fragmentLength,
|
|
|
+ reliableSequenceNumber, startSequenceNumber, totalLength;
|
|
|
+ enet_uint16 reliableWindow, currentWindow;
|
|
|
+ ENetChannel * channel;
|
|
|
+ ENetListIterator currentCommand;
|
|
|
+ ENetIncomingCommand * startCommand = NULL;
|
|
|
+
|
|
|
+ if (command->header.channelID >= peer->channelCount
|
|
|
+ || (peer->state != ENET_PEER_STATE_CONNECTED
|
|
|
+ && peer->state != ENET_PEER_STATE_DISCONNECT_LATER))
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ fragmentLength = ENET_NET_TO_HOST_16 (command -> sendFragment.dataLength);
|
|
|
+ *currentData += fragmentLength;
|
|
|
+ if (fragmentLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE || *currentData < host->receivedData
|
|
|
+ || *currentData > &host->receivedData[host->receivedDataLength])
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ channel = &peer->channels[command->header.channelID];
|
|
|
+ reliableSequenceNumber = command->header.reliableSequenceNumber;
|
|
|
+ startSequenceNumber = ENET_NET_TO_HOST_16 (command -> sendFragment.startSequenceNumber);
|
|
|
+
|
|
|
+ reliableWindow = reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
|
|
|
+ currentWindow = channel->incomingReliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
|
|
|
+
|
|
|
+ if (reliableSequenceNumber < channel->incomingReliableSequenceNumber)
|
|
|
+ reliableWindow += ENET_PEER_RELIABLE_WINDOWS;
|
|
|
+
|
|
|
+ if (reliableWindow < currentWindow
|
|
|
+ || reliableWindow >= currentWindow + ENET_PEER_FREE_RELIABLE_WINDOWS - 1)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ if (reliableSequenceNumber == channel->incomingReliableSequenceNumber
|
|
|
+ && startSequenceNumber <= channel->incomingUnreliableSequenceNumber)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ fragmentNumber = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentNumber);
|
|
|
+ fragmentCount = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentCount);
|
|
|
+ fragmentOffset = ENET_NET_TO_HOST_32 (command -> sendFragment.fragmentOffset);
|
|
|
+ totalLength = ENET_NET_TO_HOST_32 (command -> sendFragment.totalLength);
|
|
|
+
|
|
|
+ if (fragmentCount > ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT || fragmentNumber >= fragmentCount
|
|
|
+ || totalLength > ENET_PROTOCOL_MAXIMUM_PACKET_SIZE || fragmentOffset >= totalLength
|
|
|
+ || fragmentLength > totalLength - fragmentOffset)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ for (currentCommand =
|
|
|
+ enet_list_previous (enet_list_end (& channel -> incomingUnreliableCommands));
|
|
|
+ currentCommand != enet_list_end (& channel -> incomingUnreliableCommands);
|
|
|
+ currentCommand = enet_list_previous (currentCommand))
|
|
|
+ {
|
|
|
+ ENetIncomingCommand * incomingCommand = (ENetIncomingCommand *) currentCommand;
|
|
|
+
|
|
|
+ if (reliableSequenceNumber >= channel->incomingReliableSequenceNumber)
|
|
|
+ {
|
|
|
+ if (incomingCommand->reliableSequenceNumber < channel->incomingReliableSequenceNumber)
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ else if (incomingCommand->reliableSequenceNumber >= channel->incomingReliableSequenceNumber)
|
|
|
+ break;
|
|
|
+
|
|
|
+ if (incomingCommand->reliableSequenceNumber < reliableSequenceNumber)
|
|
|
+ break;
|
|
|
+
|
|
|
+ if (incomingCommand->reliableSequenceNumber > reliableSequenceNumber)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ if (incomingCommand->unreliableSequenceNumber <= startSequenceNumber)
|
|
|
+ {
|
|
|
+ if (incomingCommand->unreliableSequenceNumber < startSequenceNumber)
|
|
|
+ break;
|
|
|
+
|
|
|
+ if ((incomingCommand->command.header.command & ENET_PROTOCOL_COMMAND_MASK)
|
|
|
+ != ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE_FRAGMENT
|
|
|
+ || totalLength != incomingCommand->packet->dataLength
|
|
|
+ || fragmentCount != incomingCommand->fragmentCount)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ startCommand = incomingCommand;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (startCommand == NULL)
|
|
|
+ {
|
|
|
+ ENetPacket * packet = enet_packet_create(NULL, totalLength,
|
|
|
+ ENET_PACKET_FLAG_UNRELIABLE_FRAGMENT);
|
|
|
+ if (packet == NULL)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ startCommand = enet_peer_queue_incoming_command(peer, command, packet, fragmentCount);
|
|
|
+ if (startCommand == NULL)
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((startCommand->fragments[fragmentNumber / 32] & (1 << (fragmentNumber % 32))) == 0)
|
|
|
+ {
|
|
|
+ --startCommand->fragmentsRemaining;
|
|
|
+
|
|
|
+ startCommand->fragments[fragmentNumber / 32] |= (1 << (fragmentNumber % 32));
|
|
|
+
|
|
|
+ if (fragmentOffset + fragmentLength > startCommand->packet->dataLength)
|
|
|
+ fragmentLength = startCommand->packet->dataLength - fragmentOffset;
|
|
|
+
|
|
|
+ memcpy(startCommand->packet->data + fragmentOffset,
|
|
|
+ (enet_uint8 *) command + sizeof(ENetProtocolSendFragment), fragmentLength);
|
|
|
+
|
|
|
+ if (startCommand->fragmentsRemaining <= 0)
|
|
|
+ enet_peer_dispatch_incoming_unreliable_commands(peer, channel);
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_bandwidth_limit (ENetHost * host, ENetPeer * peer, const ENetProtocol * command)
|
|
|
+static int enet_protocol_handle_ping(ENetHost * host, ENetPeer * peer, const ENetProtocol * command)
|
|
|
{
|
|
|
- peer -> incomingBandwidth = ENET_NET_TO_HOST_32 (command -> bandwidthLimit.incomingBandwidth);
|
|
|
- peer -> outgoingBandwidth = ENET_NET_TO_HOST_32 (command -> bandwidthLimit.outgoingBandwidth);
|
|
|
-
|
|
|
- if (peer -> incomingBandwidth == 0 && host -> outgoingBandwidth == 0)
|
|
|
- peer -> windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
- else
|
|
|
- peer -> windowSize = (ENET_MIN (peer -> incomingBandwidth, host -> outgoingBandwidth) /
|
|
|
- ENET_PEER_WINDOW_SIZE_SCALE) * ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
-
|
|
|
- if (peer -> windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
|
|
|
- peer -> windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
- else
|
|
|
- if (peer -> windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
|
|
|
- peer -> windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
-
|
|
|
- return 0;
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_throttle_configure (ENetHost * host, ENetPeer * peer, const ENetProtocol * command)
|
|
|
+static int enet_protocol_handle_bandwidth_limit(ENetHost * host, ENetPeer * peer,
|
|
|
+ const ENetProtocol * command)
|
|
|
{
|
|
|
- peer -> packetThrottleInterval = ENET_NET_TO_HOST_32 (command -> throttleConfigure.packetThrottleInterval);
|
|
|
- peer -> packetThrottleAcceleration = ENET_NET_TO_HOST_32 (command -> throttleConfigure.packetThrottleAcceleration);
|
|
|
- peer -> packetThrottleDeceleration = ENET_NET_TO_HOST_32 (command -> throttleConfigure.packetThrottleDeceleration);
|
|
|
+ peer->incomingBandwidth = ENET_NET_TO_HOST_32 (command -> bandwidthLimit.incomingBandwidth);
|
|
|
+ peer->outgoingBandwidth = ENET_NET_TO_HOST_32 (command -> bandwidthLimit.outgoingBandwidth);
|
|
|
+
|
|
|
+ if (peer->incomingBandwidth == 0 && host->outgoingBandwidth == 0)
|
|
|
+ peer->windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
+ else
|
|
|
+ peer->windowSize = (ENET_MIN (peer -> incomingBandwidth, host -> outgoingBandwidth)
|
|
|
+ / ENET_PEER_WINDOW_SIZE_SCALE) * ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
|
|
|
- return 0;
|
|
|
+ if (peer->windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
|
|
|
+ peer->windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
+ else if (peer->windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
|
|
|
+ peer->windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
+
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_disconnect (ENetHost * host, ENetPeer * peer, const ENetProtocol * command)
|
|
|
+static int enet_protocol_handle_throttle_configure(ENetHost * host, ENetPeer * peer,
|
|
|
+ const ENetProtocol * command)
|
|
|
{
|
|
|
- if (peer -> state == ENET_PEER_STATE_ZOMBIE || peer -> state == ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT)
|
|
|
- return 0;
|
|
|
-
|
|
|
- enet_peer_reset_queues (peer);
|
|
|
-
|
|
|
- if (peer -> state == ENET_PEER_STATE_CONNECTION_SUCCEEDED || peer -> state == ENET_PEER_STATE_DISCONNECTING)
|
|
|
- enet_protocol_dispatch_state (host, peer, ENET_PEER_STATE_ZOMBIE);
|
|
|
- else
|
|
|
- if (peer -> state != ENET_PEER_STATE_CONNECTED && peer -> state != ENET_PEER_STATE_DISCONNECT_LATER)
|
|
|
- {
|
|
|
- if (peer -> state == ENET_PEER_STATE_CONNECTION_PENDING) host -> recalculateBandwidthLimits = 1;
|
|
|
-
|
|
|
- enet_peer_reset (peer);
|
|
|
- }
|
|
|
- else
|
|
|
- if (command -> header.command & ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE)
|
|
|
- peer -> state = ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT;
|
|
|
- else
|
|
|
- enet_protocol_dispatch_state (host, peer, ENET_PEER_STATE_ZOMBIE);
|
|
|
-
|
|
|
- if (peer -> state != ENET_PEER_STATE_DISCONNECTED)
|
|
|
- peer -> eventData = ENET_NET_TO_HOST_32 (command -> disconnect.data);
|
|
|
-
|
|
|
- return 0;
|
|
|
+ peer->packetThrottleInterval =
|
|
|
+ ENET_NET_TO_HOST_32 (command -> throttleConfigure.packetThrottleInterval);
|
|
|
+ peer->packetThrottleAcceleration =
|
|
|
+ ENET_NET_TO_HOST_32 (command -> throttleConfigure.packetThrottleAcceleration);
|
|
|
+ peer->packetThrottleDeceleration =
|
|
|
+ ENET_NET_TO_HOST_32 (command -> throttleConfigure.packetThrottleDeceleration);
|
|
|
+
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_acknowledge (ENetHost * host, ENetEvent * event, ENetPeer * peer, const ENetProtocol * command)
|
|
|
+static int enet_protocol_handle_disconnect(ENetHost * host, ENetPeer * peer,
|
|
|
+ const ENetProtocol * command)
|
|
|
{
|
|
|
- enet_uint32 roundTripTime,
|
|
|
- receivedSentTime,
|
|
|
- receivedReliableSequenceNumber;
|
|
|
- ENetProtocolCommand commandNumber;
|
|
|
-
|
|
|
- receivedSentTime = ENET_NET_TO_HOST_16 (command -> acknowledge.receivedSentTime);
|
|
|
- receivedSentTime |= host -> serviceTime & 0xFFFF0000;
|
|
|
- if ((receivedSentTime & 0x8000) > (host -> serviceTime & 0x8000))
|
|
|
- receivedSentTime -= 0x10000;
|
|
|
-
|
|
|
- if (ENET_TIME_LESS (host -> serviceTime, receivedSentTime))
|
|
|
- return 0;
|
|
|
-
|
|
|
- peer -> lastReceiveTime = host -> serviceTime;
|
|
|
- peer -> earliestTimeout = 0;
|
|
|
-
|
|
|
- roundTripTime = ENET_TIME_DIFFERENCE (host -> serviceTime, receivedSentTime);
|
|
|
-
|
|
|
- enet_peer_throttle (peer, roundTripTime);
|
|
|
-
|
|
|
- peer -> roundTripTimeVariance -= peer -> roundTripTimeVariance / 4;
|
|
|
-
|
|
|
- if (roundTripTime >= peer -> roundTripTime)
|
|
|
- {
|
|
|
- peer -> roundTripTime += (roundTripTime - peer -> roundTripTime) / 8;
|
|
|
- peer -> roundTripTimeVariance += (roundTripTime - peer -> roundTripTime) / 4;
|
|
|
- }
|
|
|
- else
|
|
|
- {
|
|
|
- peer -> roundTripTime -= (peer -> roundTripTime - roundTripTime) / 8;
|
|
|
- peer -> roundTripTimeVariance += (peer -> roundTripTime - roundTripTime) / 4;
|
|
|
- }
|
|
|
-
|
|
|
- if (peer -> roundTripTime < peer -> lowestRoundTripTime)
|
|
|
- peer -> lowestRoundTripTime = peer -> roundTripTime;
|
|
|
-
|
|
|
- if (peer -> roundTripTimeVariance > peer -> highestRoundTripTimeVariance)
|
|
|
- peer -> highestRoundTripTimeVariance = peer -> roundTripTimeVariance;
|
|
|
-
|
|
|
- if (peer -> packetThrottleEpoch == 0 ||
|
|
|
- ENET_TIME_DIFFERENCE (host -> serviceTime, peer -> packetThrottleEpoch) >= peer -> packetThrottleInterval)
|
|
|
- {
|
|
|
- peer -> lastRoundTripTime = peer -> lowestRoundTripTime;
|
|
|
- peer -> lastRoundTripTimeVariance = peer -> highestRoundTripTimeVariance;
|
|
|
- peer -> lowestRoundTripTime = peer -> roundTripTime;
|
|
|
- peer -> highestRoundTripTimeVariance = peer -> roundTripTimeVariance;
|
|
|
- peer -> packetThrottleEpoch = host -> serviceTime;
|
|
|
- }
|
|
|
-
|
|
|
- receivedReliableSequenceNumber = ENET_NET_TO_HOST_16 (command -> acknowledge.receivedReliableSequenceNumber);
|
|
|
-
|
|
|
- commandNumber = enet_protocol_remove_sent_reliable_command (peer, receivedReliableSequenceNumber, command -> header.channelID);
|
|
|
-
|
|
|
- switch (peer -> state)
|
|
|
- {
|
|
|
- case ENET_PEER_STATE_ACKNOWLEDGING_CONNECT:
|
|
|
- if (commandNumber != ENET_PROTOCOL_COMMAND_VERIFY_CONNECT)
|
|
|
- return -1;
|
|
|
-
|
|
|
- enet_protocol_notify_connect (host, peer, event);
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PEER_STATE_DISCONNECTING:
|
|
|
- if (commandNumber != ENET_PROTOCOL_COMMAND_DISCONNECT)
|
|
|
- return -1;
|
|
|
-
|
|
|
- enet_protocol_notify_disconnect (host, peer, event);
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PEER_STATE_DISCONNECT_LATER:
|
|
|
- if (enet_list_empty (& peer -> outgoingReliableCommands) &&
|
|
|
- enet_list_empty (& peer -> outgoingUnreliableCommands) &&
|
|
|
- enet_list_empty (& peer -> sentReliableCommands))
|
|
|
- enet_peer_disconnect (peer, peer -> eventData);
|
|
|
- break;
|
|
|
-
|
|
|
- default:
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- return 0;
|
|
|
+ if (peer->state == ENET_PEER_STATE_ZOMBIE
|
|
|
+ || peer->state == ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ enet_peer_reset_queues(peer);
|
|
|
+
|
|
|
+ if (peer->state == ENET_PEER_STATE_CONNECTION_SUCCEEDED
|
|
|
+ || peer->state == ENET_PEER_STATE_DISCONNECTING)
|
|
|
+ enet_protocol_dispatch_state(host, peer, ENET_PEER_STATE_ZOMBIE);
|
|
|
+ else if (peer->state != ENET_PEER_STATE_CONNECTED
|
|
|
+ && peer->state != ENET_PEER_STATE_DISCONNECT_LATER)
|
|
|
+ {
|
|
|
+ if (peer->state == ENET_PEER_STATE_CONNECTION_PENDING)
|
|
|
+ host->recalculateBandwidthLimits = 1;
|
|
|
+
|
|
|
+ enet_peer_reset(peer);
|
|
|
+ }
|
|
|
+ else if (command->header.command & ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE)
|
|
|
+ peer->state = ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT;
|
|
|
+ else
|
|
|
+ enet_protocol_dispatch_state(host, peer, ENET_PEER_STATE_ZOMBIE);
|
|
|
+
|
|
|
+ if (peer->state != ENET_PEER_STATE_DISCONNECTED)
|
|
|
+ peer->eventData = ENET_NET_TO_HOST_32 (command -> disconnect.data);
|
|
|
+
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_verify_connect (ENetHost * host, ENetEvent * event, ENetPeer * peer, const ENetProtocol * command)
|
|
|
+static int enet_protocol_handle_acknowledge(ENetHost * host, ENetEvent * event, ENetPeer * peer,
|
|
|
+ const ENetProtocol * command)
|
|
|
{
|
|
|
- enet_uint32 mtu, windowSize;
|
|
|
- size_t channelCount;
|
|
|
+ enet_uint32 roundTripTime, receivedSentTime, receivedReliableSequenceNumber;
|
|
|
+ ENetProtocolCommand commandNumber;
|
|
|
+
|
|
|
+ receivedSentTime = ENET_NET_TO_HOST_16 (command -> acknowledge.receivedSentTime);
|
|
|
+ receivedSentTime |= host->serviceTime & 0xFFFF0000;
|
|
|
+ if ((receivedSentTime & 0x8000) > (host->serviceTime & 0x8000))
|
|
|
+ receivedSentTime -= 0x10000;
|
|
|
+
|
|
|
+ if (ENET_TIME_LESS (host -> serviceTime, receivedSentTime))
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ peer->lastReceiveTime = host->serviceTime;
|
|
|
+ peer->earliestTimeout = 0;
|
|
|
+
|
|
|
+ roundTripTime = ENET_TIME_DIFFERENCE (host -> serviceTime, receivedSentTime);
|
|
|
+
|
|
|
+ enet_peer_throttle(peer, roundTripTime);
|
|
|
+
|
|
|
+ peer->roundTripTimeVariance -= peer->roundTripTimeVariance / 4;
|
|
|
+
|
|
|
+ if (roundTripTime >= peer->roundTripTime)
|
|
|
+ {
|
|
|
+ peer->roundTripTime += (roundTripTime - peer->roundTripTime) / 8;
|
|
|
+ peer->roundTripTimeVariance += (roundTripTime - peer->roundTripTime) / 4;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ peer->roundTripTime -= (peer->roundTripTime - roundTripTime) / 8;
|
|
|
+ peer->roundTripTimeVariance += (peer->roundTripTime - roundTripTime) / 4;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (peer->roundTripTime < peer->lowestRoundTripTime)
|
|
|
+ peer->lowestRoundTripTime = peer->roundTripTime;
|
|
|
+
|
|
|
+ if (peer->roundTripTimeVariance > peer->highestRoundTripTimeVariance)
|
|
|
+ peer->highestRoundTripTimeVariance = peer->roundTripTimeVariance;
|
|
|
+
|
|
|
+ if (peer->packetThrottleEpoch == 0
|
|
|
+ || ENET_TIME_DIFFERENCE (host -> serviceTime, peer -> packetThrottleEpoch)
|
|
|
+ >= peer->packetThrottleInterval)
|
|
|
+ {
|
|
|
+ peer->lastRoundTripTime = peer->lowestRoundTripTime;
|
|
|
+ peer->lastRoundTripTimeVariance = peer->highestRoundTripTimeVariance;
|
|
|
+ peer->lowestRoundTripTime = peer->roundTripTime;
|
|
|
+ peer->highestRoundTripTimeVariance = peer->roundTripTimeVariance;
|
|
|
+ peer->packetThrottleEpoch = host->serviceTime;
|
|
|
+ }
|
|
|
+
|
|
|
+ receivedReliableSequenceNumber =
|
|
|
+ ENET_NET_TO_HOST_16 (command -> acknowledge.receivedReliableSequenceNumber);
|
|
|
+
|
|
|
+ commandNumber = enet_protocol_remove_sent_reliable_command(peer, receivedReliableSequenceNumber,
|
|
|
+ command->header.channelID);
|
|
|
+
|
|
|
+ switch (peer->state)
|
|
|
+ {
|
|
|
+ case ENET_PEER_STATE_ACKNOWLEDGING_CONNECT:
|
|
|
+ if (commandNumber != ENET_PROTOCOL_COMMAND_VERIFY_CONNECT)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ enet_protocol_notify_connect(host, peer, event);
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PEER_STATE_DISCONNECTING:
|
|
|
+ if (commandNumber != ENET_PROTOCOL_COMMAND_DISCONNECT)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ enet_protocol_notify_disconnect(host, peer, event);
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PEER_STATE_DISCONNECT_LATER:
|
|
|
+ if (enet_list_empty (& peer -> outgoingReliableCommands)
|
|
|
+ && enet_list_empty (& peer -> outgoingUnreliableCommands)
|
|
|
+ && enet_list_empty (& peer -> sentReliableCommands))
|
|
|
+ enet_peer_disconnect(peer, peer->eventData);
|
|
|
+ break;
|
|
|
+
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int enet_protocol_handle_verify_connect(ENetHost * host, ENetEvent * event, ENetPeer * peer,
|
|
|
+ const ENetProtocol * command)
|
|
|
+{
|
|
|
+ enet_uint32 mtu, windowSize;
|
|
|
+ size_t channelCount;
|
|
|
+
|
|
|
+ if (peer->state != ENET_PEER_STATE_CONNECTING)
|
|
|
+ return 0;
|
|
|
|
|
|
- if (peer -> state != ENET_PEER_STATE_CONNECTING)
|
|
|
- return 0;
|
|
|
+ channelCount = ENET_NET_TO_HOST_32 (command -> verifyConnect.channelCount);
|
|
|
|
|
|
- channelCount = ENET_NET_TO_HOST_32 (command -> verifyConnect.channelCount);
|
|
|
+ if (channelCount < ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT
|
|
|
+ || channelCount > ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT
|
|
|
+ || ENET_NET_TO_HOST_32 (command -> verifyConnect.packetThrottleInterval)
|
|
|
+ != peer->packetThrottleInterval
|
|
|
+ || ENET_NET_TO_HOST_32 (command -> verifyConnect.packetThrottleAcceleration)
|
|
|
+ != peer->packetThrottleAcceleration
|
|
|
+ || ENET_NET_TO_HOST_32 (command -> verifyConnect.packetThrottleDeceleration)
|
|
|
+ != peer->packetThrottleDeceleration
|
|
|
+ || command->verifyConnect.connectID != peer->connectID)
|
|
|
+ {
|
|
|
+ peer->eventData = 0;
|
|
|
|
|
|
- if (channelCount < ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT || channelCount > ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT ||
|
|
|
- ENET_NET_TO_HOST_32 (command -> verifyConnect.packetThrottleInterval) != peer -> packetThrottleInterval ||
|
|
|
- ENET_NET_TO_HOST_32 (command -> verifyConnect.packetThrottleAcceleration) != peer -> packetThrottleAcceleration ||
|
|
|
- ENET_NET_TO_HOST_32 (command -> verifyConnect.packetThrottleDeceleration) != peer -> packetThrottleDeceleration ||
|
|
|
- command -> verifyConnect.connectID != peer -> connectID)
|
|
|
- {
|
|
|
- peer -> eventData = 0;
|
|
|
+ enet_protocol_dispatch_state(host, peer, ENET_PEER_STATE_ZOMBIE);
|
|
|
|
|
|
- enet_protocol_dispatch_state (host, peer, ENET_PEER_STATE_ZOMBIE);
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
|
|
|
- return -1;
|
|
|
- }
|
|
|
+ enet_protocol_remove_sent_reliable_command(peer, 1, 0xFF);
|
|
|
|
|
|
- enet_protocol_remove_sent_reliable_command (peer, 1, 0xFF);
|
|
|
-
|
|
|
- if (channelCount < peer -> channelCount)
|
|
|
- peer -> channelCount = channelCount;
|
|
|
+ if (channelCount < peer->channelCount)
|
|
|
+ peer->channelCount = channelCount;
|
|
|
|
|
|
- peer -> outgoingPeerID = ENET_NET_TO_HOST_16 (command -> verifyConnect.outgoingPeerID);
|
|
|
- peer -> incomingSessionID = command -> verifyConnect.incomingSessionID;
|
|
|
- peer -> outgoingSessionID = command -> verifyConnect.outgoingSessionID;
|
|
|
+ peer->outgoingPeerID = ENET_NET_TO_HOST_16 (command -> verifyConnect.outgoingPeerID);
|
|
|
+ peer->incomingSessionID = command->verifyConnect.incomingSessionID;
|
|
|
+ peer->outgoingSessionID = command->verifyConnect.outgoingSessionID;
|
|
|
|
|
|
- mtu = ENET_NET_TO_HOST_32 (command -> verifyConnect.mtu);
|
|
|
+ mtu = ENET_NET_TO_HOST_32 (command -> verifyConnect.mtu);
|
|
|
|
|
|
- if (mtu < ENET_PROTOCOL_MINIMUM_MTU)
|
|
|
- mtu = ENET_PROTOCOL_MINIMUM_MTU;
|
|
|
- else
|
|
|
- if (mtu > ENET_PROTOCOL_MAXIMUM_MTU)
|
|
|
- mtu = ENET_PROTOCOL_MAXIMUM_MTU;
|
|
|
+ if (mtu < ENET_PROTOCOL_MINIMUM_MTU)
|
|
|
+ mtu = ENET_PROTOCOL_MINIMUM_MTU;
|
|
|
+ else if (mtu > ENET_PROTOCOL_MAXIMUM_MTU)
|
|
|
+ mtu = ENET_PROTOCOL_MAXIMUM_MTU;
|
|
|
|
|
|
- if (mtu < peer -> mtu)
|
|
|
- peer -> mtu = mtu;
|
|
|
+ if (mtu < peer->mtu)
|
|
|
+ peer->mtu = mtu;
|
|
|
|
|
|
- windowSize = ENET_NET_TO_HOST_32 (command -> verifyConnect.windowSize);
|
|
|
+ windowSize = ENET_NET_TO_HOST_32 (command -> verifyConnect.windowSize);
|
|
|
|
|
|
- if (windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
|
|
|
- windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
+ if (windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
|
|
|
+ windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
|
|
|
|
|
|
- if (windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
|
|
|
- windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
+ if (windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
|
|
|
+ windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
|
|
|
|
|
|
- if (windowSize < peer -> windowSize)
|
|
|
- peer -> windowSize = windowSize;
|
|
|
+ if (windowSize < peer->windowSize)
|
|
|
+ peer->windowSize = windowSize;
|
|
|
|
|
|
- peer -> incomingBandwidth = ENET_NET_TO_HOST_32 (command -> verifyConnect.incomingBandwidth);
|
|
|
- peer -> outgoingBandwidth = ENET_NET_TO_HOST_32 (command -> verifyConnect.outgoingBandwidth);
|
|
|
+ peer->incomingBandwidth = ENET_NET_TO_HOST_32 (command -> verifyConnect.incomingBandwidth);
|
|
|
+ peer->outgoingBandwidth = ENET_NET_TO_HOST_32 (command -> verifyConnect.outgoingBandwidth);
|
|
|
|
|
|
- enet_protocol_notify_connect (host, peer, event);
|
|
|
- return 0;
|
|
|
+ enet_protocol_notify_connect(host, peer, event);
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_handle_incoming_commands (ENetHost * host, ENetEvent * event)
|
|
|
+static int enet_protocol_handle_incoming_commands(ENetHost * host, ENetEvent * event)
|
|
|
{
|
|
|
- ENetProtocolHeader * header;
|
|
|
- ENetProtocol * command;
|
|
|
- ENetPeer * peer;
|
|
|
- enet_uint8 * currentData;
|
|
|
- size_t headerSize;
|
|
|
- enet_uint16 peerID, flags;
|
|
|
- enet_uint8 sessionID;
|
|
|
-
|
|
|
- if (host -> receivedDataLength < (size_t) & ((ENetProtocolHeader *) 0) -> sentTime)
|
|
|
- return 0;
|
|
|
-
|
|
|
- header = (ENetProtocolHeader *) host -> receivedData;
|
|
|
-
|
|
|
- peerID = ENET_NET_TO_HOST_16 (header -> peerID);
|
|
|
- sessionID = (peerID & ENET_PROTOCOL_HEADER_SESSION_MASK) >> ENET_PROTOCOL_HEADER_SESSION_SHIFT;
|
|
|
- flags = peerID & ENET_PROTOCOL_HEADER_FLAG_MASK;
|
|
|
- peerID &= ~ (ENET_PROTOCOL_HEADER_FLAG_MASK | ENET_PROTOCOL_HEADER_SESSION_MASK);
|
|
|
-
|
|
|
- headerSize = (flags & ENET_PROTOCOL_HEADER_FLAG_SENT_TIME ? sizeof (ENetProtocolHeader) : (size_t) & ((ENetProtocolHeader *) 0) -> sentTime);
|
|
|
- if (host -> checksum != NULL)
|
|
|
- headerSize += sizeof (enet_uint32);
|
|
|
-
|
|
|
- if (peerID == ENET_PROTOCOL_MAXIMUM_PEER_ID)
|
|
|
- peer = NULL;
|
|
|
- else
|
|
|
- if (peerID >= host -> peerCount)
|
|
|
- return 0;
|
|
|
- else
|
|
|
- {
|
|
|
- peer = & host -> peers [peerID];
|
|
|
-
|
|
|
- if (peer -> state == ENET_PEER_STATE_DISCONNECTED ||
|
|
|
- peer -> state == ENET_PEER_STATE_ZOMBIE ||
|
|
|
- ((host -> receivedAddress.host != peer -> address.host ||
|
|
|
- host -> receivedAddress.port != peer -> address.port) &&
|
|
|
- peer -> address.host != ENET_HOST_BROADCAST) ||
|
|
|
- (peer -> outgoingPeerID < ENET_PROTOCOL_MAXIMUM_PEER_ID &&
|
|
|
- sessionID != peer -> incomingSessionID))
|
|
|
- return 0;
|
|
|
- }
|
|
|
-
|
|
|
- if (flags & ENET_PROTOCOL_HEADER_FLAG_COMPRESSED)
|
|
|
- {
|
|
|
- size_t originalSize;
|
|
|
- if (host -> compressor.context == NULL || host -> compressor.decompress == NULL)
|
|
|
- return 0;
|
|
|
-
|
|
|
- originalSize = host -> compressor.decompress (host -> compressor.context,
|
|
|
- host -> receivedData + headerSize,
|
|
|
- host -> receivedDataLength - headerSize,
|
|
|
- host -> packetData [1] + headerSize,
|
|
|
- sizeof (host -> packetData [1]) - headerSize);
|
|
|
- if (originalSize <= 0 || originalSize > sizeof (host -> packetData [1]) - headerSize)
|
|
|
- return 0;
|
|
|
-
|
|
|
- memcpy (host -> packetData [1], header, headerSize);
|
|
|
- host -> receivedData = host -> packetData [1];
|
|
|
- host -> receivedDataLength = headerSize + originalSize;
|
|
|
- }
|
|
|
-
|
|
|
- if (host -> checksum != NULL)
|
|
|
- {
|
|
|
- enet_uint32 * checksum = (enet_uint32 *) & host -> receivedData [headerSize - sizeof (enet_uint32)],
|
|
|
- desiredChecksum = * checksum;
|
|
|
- ENetBuffer buffer;
|
|
|
-
|
|
|
- * checksum = peer != NULL ? peer -> connectID : 0;
|
|
|
-
|
|
|
- buffer.data = host -> receivedData;
|
|
|
- buffer.dataLength = host -> receivedDataLength;
|
|
|
-
|
|
|
- if (host -> checksum (& buffer, 1) != desiredChecksum)
|
|
|
- return 0;
|
|
|
- }
|
|
|
-
|
|
|
- if (peer != NULL)
|
|
|
- {
|
|
|
- peer -> address.host = host -> receivedAddress.host;
|
|
|
- peer -> address.port = host -> receivedAddress.port;
|
|
|
- peer -> incomingDataTotal += host -> receivedDataLength;
|
|
|
- }
|
|
|
-
|
|
|
- currentData = host -> receivedData + headerSize;
|
|
|
-
|
|
|
- while (currentData < & host -> receivedData [host -> receivedDataLength])
|
|
|
- {
|
|
|
- enet_uint8 commandNumber;
|
|
|
- size_t commandSize;
|
|
|
-
|
|
|
- command = (ENetProtocol *) currentData;
|
|
|
-
|
|
|
- if (currentData + sizeof (ENetProtocolCommandHeader) > & host -> receivedData [host -> receivedDataLength])
|
|
|
- break;
|
|
|
-
|
|
|
- commandNumber = command -> header.command & ENET_PROTOCOL_COMMAND_MASK;
|
|
|
- if (commandNumber >= ENET_PROTOCOL_COMMAND_COUNT)
|
|
|
- break;
|
|
|
-
|
|
|
- commandSize = commandSizes [commandNumber];
|
|
|
- if (commandSize == 0 || currentData + commandSize > & host -> receivedData [host -> receivedDataLength])
|
|
|
- break;
|
|
|
-
|
|
|
- currentData += commandSize;
|
|
|
-
|
|
|
- if (peer == NULL && commandNumber != ENET_PROTOCOL_COMMAND_CONNECT)
|
|
|
- break;
|
|
|
-
|
|
|
- command -> header.reliableSequenceNumber = ENET_NET_TO_HOST_16 (command -> header.reliableSequenceNumber);
|
|
|
-
|
|
|
- switch (command -> header.command & ENET_PROTOCOL_COMMAND_MASK)
|
|
|
- {
|
|
|
- case ENET_PROTOCOL_COMMAND_ACKNOWLEDGE:
|
|
|
- if (enet_protocol_handle_acknowledge (host, event, peer, command))
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PROTOCOL_COMMAND_CONNECT:
|
|
|
- peer = enet_protocol_handle_connect (host, header, command);
|
|
|
- if (peer == NULL)
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PROTOCOL_COMMAND_VERIFY_CONNECT:
|
|
|
- if (enet_protocol_handle_verify_connect (host, event, peer, command))
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PROTOCOL_COMMAND_DISCONNECT:
|
|
|
- if (enet_protocol_handle_disconnect (host, peer, command))
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PROTOCOL_COMMAND_PING:
|
|
|
- if (enet_protocol_handle_ping (host, peer, command))
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PROTOCOL_COMMAND_SEND_RELIABLE:
|
|
|
- if (enet_protocol_handle_send_reliable (host, peer, command, & currentData))
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE:
|
|
|
- if (enet_protocol_handle_send_unreliable (host, peer, command, & currentData))
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED:
|
|
|
- if (enet_protocol_handle_send_unsequenced (host, peer, command, & currentData))
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PROTOCOL_COMMAND_SEND_FRAGMENT:
|
|
|
- if (enet_protocol_handle_send_fragment (host, peer, command, & currentData))
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PROTOCOL_COMMAND_BANDWIDTH_LIMIT:
|
|
|
- if (enet_protocol_handle_bandwidth_limit (host, peer, command))
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PROTOCOL_COMMAND_THROTTLE_CONFIGURE:
|
|
|
- if (enet_protocol_handle_throttle_configure (host, peer, command))
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE_FRAGMENT:
|
|
|
- if (enet_protocol_handle_send_unreliable_fragment (host, peer, command, & currentData))
|
|
|
- goto commandError;
|
|
|
- break;
|
|
|
-
|
|
|
- default:
|
|
|
- goto commandError;
|
|
|
- }
|
|
|
-
|
|
|
- if (peer != NULL &&
|
|
|
- (command -> header.command & ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE) != 0)
|
|
|
- {
|
|
|
- enet_uint16 sentTime;
|
|
|
-
|
|
|
- if (! (flags & ENET_PROTOCOL_HEADER_FLAG_SENT_TIME))
|
|
|
- break;
|
|
|
-
|
|
|
- sentTime = ENET_NET_TO_HOST_16 (header -> sentTime);
|
|
|
-
|
|
|
- switch (peer -> state)
|
|
|
- {
|
|
|
- case ENET_PEER_STATE_DISCONNECTING:
|
|
|
- case ENET_PEER_STATE_ACKNOWLEDGING_CONNECT:
|
|
|
- break;
|
|
|
-
|
|
|
- case ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT:
|
|
|
- if ((command -> header.command & ENET_PROTOCOL_COMMAND_MASK) == ENET_PROTOCOL_COMMAND_DISCONNECT)
|
|
|
- enet_peer_queue_acknowledgement (peer, command, sentTime);
|
|
|
- break;
|
|
|
-
|
|
|
- default:
|
|
|
- enet_peer_queue_acknowledgement (peer, command, sentTime);
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
-commandError:
|
|
|
- if (event != NULL && event -> type != ENET_EVENT_TYPE_NONE)
|
|
|
- return 1;
|
|
|
-
|
|
|
- return 0;
|
|
|
+ ENetProtocolHeader * header;
|
|
|
+ ENetProtocol * command;
|
|
|
+ ENetPeer * peer;
|
|
|
+ enet_uint8 * currentData;
|
|
|
+ size_t headerSize;
|
|
|
+ enet_uint16 peerID, flags;
|
|
|
+ enet_uint8 sessionID;
|
|
|
+
|
|
|
+ if (host->receivedDataLength < (size_t) & ((ENetProtocolHeader *) 0)->sentTime)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ header = (ENetProtocolHeader *) host->receivedData;
|
|
|
+
|
|
|
+ peerID = ENET_NET_TO_HOST_16 (header -> peerID);
|
|
|
+ sessionID = (peerID & ENET_PROTOCOL_HEADER_SESSION_MASK) >> ENET_PROTOCOL_HEADER_SESSION_SHIFT;
|
|
|
+ flags = peerID & ENET_PROTOCOL_HEADER_FLAG_MASK;
|
|
|
+ peerID &= ~(ENET_PROTOCOL_HEADER_FLAG_MASK | ENET_PROTOCOL_HEADER_SESSION_MASK);
|
|
|
+
|
|
|
+ headerSize = (
|
|
|
+ flags & ENET_PROTOCOL_HEADER_FLAG_SENT_TIME ?
|
|
|
+ sizeof(ENetProtocolHeader) : (size_t) & ((ENetProtocolHeader *) 0)->sentTime);
|
|
|
+ if (host->checksum != NULL)
|
|
|
+ headerSize += sizeof(enet_uint32);
|
|
|
+
|
|
|
+ if (peerID == ENET_PROTOCOL_MAXIMUM_PEER_ID)
|
|
|
+ peer = NULL;
|
|
|
+ else if (peerID >= host->peerCount)
|
|
|
+ return 0;
|
|
|
+ else
|
|
|
+ {
|
|
|
+ peer = &host->peers[peerID];
|
|
|
+
|
|
|
+ if (peer->state == ENET_PEER_STATE_DISCONNECTED || peer->state == ENET_PEER_STATE_ZOMBIE
|
|
|
+ || ((host->receivedAddress.host != peer->address.host
|
|
|
+ || host->receivedAddress.port != peer->address.port)
|
|
|
+ && peer->address.host != ENET_HOST_BROADCAST)
|
|
|
+ || (peer->outgoingPeerID < ENET_PROTOCOL_MAXIMUM_PEER_ID
|
|
|
+ && sessionID != peer->incomingSessionID))
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (flags & ENET_PROTOCOL_HEADER_FLAG_COMPRESSED)
|
|
|
+ {
|
|
|
+ size_t originalSize;
|
|
|
+ if (host->compressor.context == NULL || host->compressor.decompress == NULL)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ originalSize = host->compressor.decompress(host->compressor.context,
|
|
|
+ host->receivedData + headerSize, host->receivedDataLength - headerSize,
|
|
|
+ host->packetData[1] + headerSize, sizeof(host->packetData[1]) - headerSize);
|
|
|
+ if (originalSize <= 0 || originalSize > sizeof(host->packetData[1]) - headerSize)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ memcpy(host->packetData[1], header, headerSize);
|
|
|
+ host->receivedData = host->packetData[1];
|
|
|
+ host->receivedDataLength = headerSize + originalSize;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (host->checksum != NULL)
|
|
|
+ {
|
|
|
+ enet_uint32 * checksum = (enet_uint32 *) &host->receivedData[headerSize
|
|
|
+ - sizeof(enet_uint32)], desiredChecksum = *checksum;
|
|
|
+ ENetBuffer buffer;
|
|
|
+
|
|
|
+ *checksum = peer != NULL ? peer->connectID : 0;
|
|
|
+
|
|
|
+ buffer.data = host->receivedData;
|
|
|
+ buffer.dataLength = host->receivedDataLength;
|
|
|
+
|
|
|
+ if (host->checksum(&buffer, 1) != desiredChecksum)
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (peer != NULL)
|
|
|
+ {
|
|
|
+ peer->address.host = host->receivedAddress.host;
|
|
|
+ peer->address.port = host->receivedAddress.port;
|
|
|
+ peer->incomingDataTotal += host->receivedDataLength;
|
|
|
+ }
|
|
|
+
|
|
|
+ currentData = host->receivedData + headerSize;
|
|
|
+
|
|
|
+ while (currentData < &host->receivedData[host->receivedDataLength])
|
|
|
+ {
|
|
|
+ enet_uint8 commandNumber;
|
|
|
+ size_t commandSize;
|
|
|
+
|
|
|
+ command = (ENetProtocol *) currentData;
|
|
|
+
|
|
|
+ if (currentData + sizeof(ENetProtocolCommandHeader)
|
|
|
+ > &host->receivedData[host->receivedDataLength])
|
|
|
+ break;
|
|
|
+
|
|
|
+ commandNumber = command->header.command & ENET_PROTOCOL_COMMAND_MASK;
|
|
|
+ if (commandNumber >= ENET_PROTOCOL_COMMAND_COUNT)
|
|
|
+ break;
|
|
|
+
|
|
|
+ commandSize = commandSizes[commandNumber];
|
|
|
+ if (commandSize == 0
|
|
|
+ || currentData + commandSize > &host->receivedData[host->receivedDataLength])
|
|
|
+ break;
|
|
|
+
|
|
|
+ currentData += commandSize;
|
|
|
+
|
|
|
+ if (peer == NULL && commandNumber != ENET_PROTOCOL_COMMAND_CONNECT)
|
|
|
+ break;
|
|
|
+
|
|
|
+ command->header.reliableSequenceNumber =
|
|
|
+ ENET_NET_TO_HOST_16 (command -> header.reliableSequenceNumber);
|
|
|
+
|
|
|
+ switch (command->header.command & ENET_PROTOCOL_COMMAND_MASK)
|
|
|
+ {
|
|
|
+ case ENET_PROTOCOL_COMMAND_ACKNOWLEDGE:
|
|
|
+ if (enet_protocol_handle_acknowledge(host, event, peer, command))
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PROTOCOL_COMMAND_CONNECT:
|
|
|
+ peer = enet_protocol_handle_connect(host, header, command);
|
|
|
+ if (peer == NULL)
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PROTOCOL_COMMAND_VERIFY_CONNECT:
|
|
|
+ if (enet_protocol_handle_verify_connect(host, event, peer, command))
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PROTOCOL_COMMAND_DISCONNECT:
|
|
|
+ if (enet_protocol_handle_disconnect(host, peer, command))
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PROTOCOL_COMMAND_PING:
|
|
|
+ if (enet_protocol_handle_ping(host, peer, command))
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PROTOCOL_COMMAND_SEND_RELIABLE:
|
|
|
+ if (enet_protocol_handle_send_reliable(host, peer, command, ¤tData))
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE:
|
|
|
+ if (enet_protocol_handle_send_unreliable(host, peer, command, ¤tData))
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED:
|
|
|
+ if (enet_protocol_handle_send_unsequenced(host, peer, command, ¤tData))
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PROTOCOL_COMMAND_SEND_FRAGMENT:
|
|
|
+ if (enet_protocol_handle_send_fragment(host, peer, command, ¤tData))
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PROTOCOL_COMMAND_BANDWIDTH_LIMIT:
|
|
|
+ if (enet_protocol_handle_bandwidth_limit(host, peer, command))
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PROTOCOL_COMMAND_THROTTLE_CONFIGURE:
|
|
|
+ if (enet_protocol_handle_throttle_configure(host, peer, command))
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE_FRAGMENT:
|
|
|
+ if (enet_protocol_handle_send_unreliable_fragment(host, peer, command,
|
|
|
+ ¤tData))
|
|
|
+ goto commandError;
|
|
|
+ break;
|
|
|
+
|
|
|
+ default:
|
|
|
+ goto commandError;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (peer != NULL && (command->header.command & ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE) != 0)
|
|
|
+ {
|
|
|
+ enet_uint16 sentTime;
|
|
|
+
|
|
|
+ if (!(flags & ENET_PROTOCOL_HEADER_FLAG_SENT_TIME))
|
|
|
+ break;
|
|
|
+
|
|
|
+ sentTime = ENET_NET_TO_HOST_16 (header -> sentTime);
|
|
|
+
|
|
|
+ switch (peer->state)
|
|
|
+ {
|
|
|
+ case ENET_PEER_STATE_DISCONNECTING:
|
|
|
+ case ENET_PEER_STATE_ACKNOWLEDGING_CONNECT:
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT:
|
|
|
+ if ((command->header.command & ENET_PROTOCOL_COMMAND_MASK)
|
|
|
+ == ENET_PROTOCOL_COMMAND_DISCONNECT)
|
|
|
+ enet_peer_queue_acknowledgement(peer, command, sentTime);
|
|
|
+ break;
|
|
|
+
|
|
|
+ default:
|
|
|
+ enet_peer_queue_acknowledgement(peer, command, sentTime);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ commandError: if (event != NULL && event->type != ENET_EVENT_TYPE_NONE)
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ return 0;
|
|
|
}
|
|
|
-
|
|
|
-static int
|
|
|
-enet_protocol_receive_incoming_commands (ENetHost * host, ENetEvent * event)
|
|
|
+
|
|
|
+static int enet_protocol_receive_incoming_commands(ENetHost * host, ENetEvent * event)
|
|
|
{
|
|
|
- for (;;)
|
|
|
- {
|
|
|
- int receivedLength;
|
|
|
- ENetBuffer buffer;
|
|
|
-
|
|
|
- buffer.data = host -> packetData [0];
|
|
|
- buffer.dataLength = sizeof (host -> packetData [0]);
|
|
|
-
|
|
|
- receivedLength = enet_socket_receive (host -> socket,
|
|
|
- & host -> receivedAddress,
|
|
|
- & buffer,
|
|
|
- 1);
|
|
|
-
|
|
|
- if (receivedLength < 0)
|
|
|
- return -1;
|
|
|
-
|
|
|
- if (receivedLength == 0)
|
|
|
- return 0;
|
|
|
-
|
|
|
- host -> receivedData = host -> packetData [0];
|
|
|
- host -> receivedDataLength = receivedLength;
|
|
|
-
|
|
|
- host -> totalReceivedData += receivedLength;
|
|
|
- host -> totalReceivedPackets ++;
|
|
|
-
|
|
|
- switch (enet_protocol_handle_incoming_commands (host, event))
|
|
|
- {
|
|
|
- case 1:
|
|
|
- return 1;
|
|
|
-
|
|
|
- case -1:
|
|
|
- return -1;
|
|
|
-
|
|
|
- default:
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return -1;
|
|
|
+ for (;;)
|
|
|
+ {
|
|
|
+ int receivedLength;
|
|
|
+ ENetBuffer buffer;
|
|
|
+
|
|
|
+ buffer.data = host->packetData[0];
|
|
|
+ buffer.dataLength = sizeof(host->packetData[0]);
|
|
|
+
|
|
|
+ receivedLength = enet_socket_receive(host->socket, &host->receivedAddress, &buffer, 1);
|
|
|
+
|
|
|
+ if (receivedLength < 0)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ if (receivedLength == 0)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ host->receivedData = host->packetData[0];
|
|
|
+ host->receivedDataLength = receivedLength;
|
|
|
+
|
|
|
+ host->totalReceivedData += receivedLength;
|
|
|
+ host->totalReceivedPackets++;
|
|
|
+
|
|
|
+ switch (enet_protocol_handle_incoming_commands(host, event))
|
|
|
+ {
|
|
|
+ case 1:
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ case -1:
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return -1;
|
|
|
}
|
|
|
|
|
|
-static void
|
|
|
-enet_protocol_send_acknowledgements (ENetHost * host, ENetPeer * peer)
|
|
|
+static void enet_protocol_send_acknowledgements(ENetHost * host, ENetPeer * peer)
|
|
|
{
|
|
|
- ENetProtocol * command = & host -> commands [host -> commandCount];
|
|
|
- ENetBuffer * buffer = & host -> buffers [host -> bufferCount];
|
|
|
- ENetAcknowledgement * acknowledgement;
|
|
|
- ENetListIterator currentAcknowledgement;
|
|
|
-
|
|
|
- currentAcknowledgement = enet_list_begin (& peer -> acknowledgements);
|
|
|
-
|
|
|
- while (currentAcknowledgement != enet_list_end (& peer -> acknowledgements))
|
|
|
- {
|
|
|
- if (command >= & host -> commands [sizeof (host -> commands) / sizeof (ENetProtocol)] ||
|
|
|
- buffer >= & host -> buffers [sizeof (host -> buffers) / sizeof (ENetBuffer)] ||
|
|
|
- peer -> mtu - host -> packetSize < sizeof (ENetProtocolAcknowledge))
|
|
|
- {
|
|
|
- host -> continueSending = 1;
|
|
|
-
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- acknowledgement = (ENetAcknowledgement *) currentAcknowledgement;
|
|
|
-
|
|
|
- currentAcknowledgement = enet_list_next (currentAcknowledgement);
|
|
|
-
|
|
|
- buffer -> data = command;
|
|
|
- buffer -> dataLength = sizeof (ENetProtocolAcknowledge);
|
|
|
-
|
|
|
- host -> packetSize += buffer -> dataLength;
|
|
|
-
|
|
|
- command -> header.command = ENET_PROTOCOL_COMMAND_ACKNOWLEDGE;
|
|
|
- command -> header.channelID = acknowledgement -> command.header.channelID;
|
|
|
- command -> acknowledge.receivedReliableSequenceNumber = ENET_HOST_TO_NET_16 (acknowledgement -> command.header.reliableSequenceNumber);
|
|
|
- command -> acknowledge.receivedSentTime = ENET_HOST_TO_NET_16 (acknowledgement -> sentTime);
|
|
|
-
|
|
|
- if ((acknowledgement -> command.header.command & ENET_PROTOCOL_COMMAND_MASK) == ENET_PROTOCOL_COMMAND_DISCONNECT)
|
|
|
- enet_protocol_dispatch_state (host, peer, ENET_PEER_STATE_ZOMBIE);
|
|
|
-
|
|
|
- enet_list_remove (& acknowledgement -> acknowledgementList);
|
|
|
- enet_free (acknowledgement);
|
|
|
-
|
|
|
- ++ command;
|
|
|
- ++ buffer;
|
|
|
- }
|
|
|
-
|
|
|
- host -> commandCount = command - host -> commands;
|
|
|
- host -> bufferCount = buffer - host -> buffers;
|
|
|
+ ENetProtocol * command = &host->commands[host->commandCount];
|
|
|
+ ENetBuffer * buffer = &host->buffers[host->bufferCount];
|
|
|
+ ENetAcknowledgement * acknowledgement;
|
|
|
+ ENetListIterator currentAcknowledgement;
|
|
|
+
|
|
|
+ currentAcknowledgement = enet_list_begin (& peer -> acknowledgements);
|
|
|
+
|
|
|
+ while (currentAcknowledgement != enet_list_end (& peer -> acknowledgements))
|
|
|
+ {
|
|
|
+ if (command >= &host->commands[sizeof(host->commands) / sizeof(ENetProtocol)]
|
|
|
+ || buffer >= &host->buffers[sizeof(host->buffers) / sizeof(ENetBuffer)]
|
|
|
+ || peer->mtu - host->packetSize < sizeof(ENetProtocolAcknowledge))
|
|
|
+ {
|
|
|
+ host->continueSending = 1;
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ acknowledgement = (ENetAcknowledgement *) currentAcknowledgement;
|
|
|
+
|
|
|
+ currentAcknowledgement = enet_list_next (currentAcknowledgement);
|
|
|
+
|
|
|
+ buffer->data = command;
|
|
|
+ buffer->dataLength = sizeof(ENetProtocolAcknowledge);
|
|
|
+
|
|
|
+ host->packetSize += buffer->dataLength;
|
|
|
+
|
|
|
+ command->header.command = ENET_PROTOCOL_COMMAND_ACKNOWLEDGE;
|
|
|
+ command->header.channelID = acknowledgement->command.header.channelID;
|
|
|
+ command->acknowledge.receivedReliableSequenceNumber =
|
|
|
+ ENET_HOST_TO_NET_16 (acknowledgement -> command.header.reliableSequenceNumber);
|
|
|
+ command->acknowledge.receivedSentTime = ENET_HOST_TO_NET_16 (acknowledgement -> sentTime);
|
|
|
+
|
|
|
+ if ((acknowledgement->command.header.command & ENET_PROTOCOL_COMMAND_MASK)
|
|
|
+ == ENET_PROTOCOL_COMMAND_DISCONNECT)
|
|
|
+ enet_protocol_dispatch_state(host, peer, ENET_PEER_STATE_ZOMBIE);
|
|
|
+
|
|
|
+ enet_list_remove(&acknowledgement->acknowledgementList);
|
|
|
+ enet_free(acknowledgement);
|
|
|
+
|
|
|
+ ++command;
|
|
|
+ ++buffer;
|
|
|
+ }
|
|
|
+
|
|
|
+ host->commandCount = command - host->commands;
|
|
|
+ host->bufferCount = buffer - host->buffers;
|
|
|
}
|
|
|
|
|
|
-static void
|
|
|
-enet_protocol_send_unreliable_outgoing_commands (ENetHost * host, ENetPeer * peer)
|
|
|
+static void enet_protocol_send_unreliable_outgoing_commands(ENetHost * host, ENetPeer * peer)
|
|
|
{
|
|
|
- ENetProtocol * command = & host -> commands [host -> commandCount];
|
|
|
- ENetBuffer * buffer = & host -> buffers [host -> bufferCount];
|
|
|
- ENetOutgoingCommand * outgoingCommand;
|
|
|
- ENetListIterator currentCommand;
|
|
|
-
|
|
|
- currentCommand = enet_list_begin (& peer -> outgoingUnreliableCommands);
|
|
|
-
|
|
|
- while (currentCommand != enet_list_end (& peer -> outgoingUnreliableCommands))
|
|
|
- {
|
|
|
- size_t commandSize;
|
|
|
-
|
|
|
- outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
- commandSize = commandSizes [outgoingCommand -> command.header.command & ENET_PROTOCOL_COMMAND_MASK];
|
|
|
-
|
|
|
- if (command >= & host -> commands [sizeof (host -> commands) / sizeof (ENetProtocol)] ||
|
|
|
- buffer + 1 >= & host -> buffers [sizeof (host -> buffers) / sizeof (ENetBuffer)] ||
|
|
|
- peer -> mtu - host -> packetSize < commandSize ||
|
|
|
- (outgoingCommand -> packet != NULL &&
|
|
|
- peer -> mtu - host -> packetSize < commandSize + outgoingCommand -> fragmentLength))
|
|
|
- {
|
|
|
- host -> continueSending = 1;
|
|
|
-
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- currentCommand = enet_list_next (currentCommand);
|
|
|
-
|
|
|
- if (outgoingCommand -> packet != NULL && outgoingCommand -> fragmentOffset == 0)
|
|
|
- {
|
|
|
- peer -> packetThrottleCounter += ENET_PEER_PACKET_THROTTLE_COUNTER;
|
|
|
- peer -> packetThrottleCounter %= ENET_PEER_PACKET_THROTTLE_SCALE;
|
|
|
-
|
|
|
- if (peer -> packetThrottleCounter > peer -> packetThrottle)
|
|
|
- {
|
|
|
- enet_uint16 reliableSequenceNumber = outgoingCommand -> reliableSequenceNumber,
|
|
|
- unreliableSequenceNumber = outgoingCommand -> unreliableSequenceNumber;
|
|
|
- for (;;)
|
|
|
- {
|
|
|
- -- outgoingCommand -> packet -> referenceCount;
|
|
|
-
|
|
|
- if (outgoingCommand -> packet -> referenceCount == 0)
|
|
|
- enet_packet_destroy (outgoingCommand -> packet);
|
|
|
-
|
|
|
- enet_list_remove (& outgoingCommand -> outgoingCommandList);
|
|
|
- enet_free (outgoingCommand);
|
|
|
-
|
|
|
- if (currentCommand == enet_list_end (& peer -> outgoingUnreliableCommands))
|
|
|
- break;
|
|
|
-
|
|
|
- outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
- if (outgoingCommand -> reliableSequenceNumber != reliableSequenceNumber ||
|
|
|
- outgoingCommand -> unreliableSequenceNumber != unreliableSequenceNumber)
|
|
|
- break;
|
|
|
-
|
|
|
- currentCommand = enet_list_next (currentCommand);
|
|
|
- }
|
|
|
-
|
|
|
- continue;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- buffer -> data = command;
|
|
|
- buffer -> dataLength = commandSize;
|
|
|
-
|
|
|
- host -> packetSize += buffer -> dataLength;
|
|
|
-
|
|
|
- * command = outgoingCommand -> command;
|
|
|
-
|
|
|
- enet_list_remove (& outgoingCommand -> outgoingCommandList);
|
|
|
-
|
|
|
- if (outgoingCommand -> packet != NULL)
|
|
|
- {
|
|
|
- ++ buffer;
|
|
|
-
|
|
|
- buffer -> data = outgoingCommand -> packet -> data + outgoingCommand -> fragmentOffset;
|
|
|
- buffer -> dataLength = outgoingCommand -> fragmentLength;
|
|
|
-
|
|
|
- host -> packetSize += buffer -> dataLength;
|
|
|
-
|
|
|
- enet_list_insert (enet_list_end (& peer -> sentUnreliableCommands), outgoingCommand);
|
|
|
- }
|
|
|
- else
|
|
|
- enet_free (outgoingCommand);
|
|
|
-
|
|
|
- ++ command;
|
|
|
- ++ buffer;
|
|
|
- }
|
|
|
-
|
|
|
- host -> commandCount = command - host -> commands;
|
|
|
- host -> bufferCount = buffer - host -> buffers;
|
|
|
-
|
|
|
- if (peer -> state == ENET_PEER_STATE_DISCONNECT_LATER &&
|
|
|
- enet_list_empty (& peer -> outgoingReliableCommands) &&
|
|
|
- enet_list_empty (& peer -> outgoingUnreliableCommands) &&
|
|
|
- enet_list_empty (& peer -> sentReliableCommands))
|
|
|
- enet_peer_disconnect (peer, peer -> eventData);
|
|
|
+ ENetProtocol * command = &host->commands[host->commandCount];
|
|
|
+ ENetBuffer * buffer = &host->buffers[host->bufferCount];
|
|
|
+ ENetOutgoingCommand * outgoingCommand;
|
|
|
+ ENetListIterator currentCommand;
|
|
|
+
|
|
|
+ currentCommand = enet_list_begin (& peer -> outgoingUnreliableCommands);
|
|
|
+
|
|
|
+ while (currentCommand != enet_list_end (& peer -> outgoingUnreliableCommands))
|
|
|
+ {
|
|
|
+ size_t commandSize;
|
|
|
+
|
|
|
+ outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
+ commandSize = commandSizes[outgoingCommand->command.header.command
|
|
|
+ & ENET_PROTOCOL_COMMAND_MASK];
|
|
|
+
|
|
|
+ if (command >= &host->commands[sizeof(host->commands) / sizeof(ENetProtocol)]
|
|
|
+ || buffer + 1 >= &host->buffers[sizeof(host->buffers) / sizeof(ENetBuffer)]
|
|
|
+ || peer->mtu - host->packetSize < commandSize
|
|
|
+ || (outgoingCommand->packet != NULL
|
|
|
+ && peer->mtu - host->packetSize
|
|
|
+ < commandSize + outgoingCommand->fragmentLength))
|
|
|
+ {
|
|
|
+ host->continueSending = 1;
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ currentCommand = enet_list_next (currentCommand);
|
|
|
+
|
|
|
+ if (outgoingCommand->packet != NULL && outgoingCommand->fragmentOffset == 0)
|
|
|
+ {
|
|
|
+ peer->packetThrottleCounter += ENET_PEER_PACKET_THROTTLE_COUNTER;
|
|
|
+ peer->packetThrottleCounter %= ENET_PEER_PACKET_THROTTLE_SCALE;
|
|
|
+
|
|
|
+ if (peer->packetThrottleCounter > peer->packetThrottle)
|
|
|
+ {
|
|
|
+ enet_uint16 reliableSequenceNumber = outgoingCommand->reliableSequenceNumber,
|
|
|
+ unreliableSequenceNumber = outgoingCommand->unreliableSequenceNumber;
|
|
|
+ for (;;)
|
|
|
+ {
|
|
|
+ --outgoingCommand->packet->referenceCount;
|
|
|
+
|
|
|
+ if (outgoingCommand->packet->referenceCount == 0)
|
|
|
+ enet_packet_destroy(outgoingCommand->packet);
|
|
|
+
|
|
|
+ enet_list_remove(&outgoingCommand->outgoingCommandList);
|
|
|
+ enet_free(outgoingCommand);
|
|
|
+
|
|
|
+ if (currentCommand == enet_list_end (& peer -> outgoingUnreliableCommands))
|
|
|
+ break;
|
|
|
+
|
|
|
+ outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
+ if (outgoingCommand->reliableSequenceNumber != reliableSequenceNumber
|
|
|
+ || outgoingCommand->unreliableSequenceNumber
|
|
|
+ != unreliableSequenceNumber)
|
|
|
+ break;
|
|
|
+
|
|
|
+ currentCommand = enet_list_next (currentCommand);
|
|
|
+ }
|
|
|
+
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ buffer->data = command;
|
|
|
+ buffer->dataLength = commandSize;
|
|
|
+
|
|
|
+ host->packetSize += buffer->dataLength;
|
|
|
+
|
|
|
+ *command = outgoingCommand->command;
|
|
|
+
|
|
|
+ enet_list_remove(&outgoingCommand->outgoingCommandList);
|
|
|
+
|
|
|
+ if (outgoingCommand->packet != NULL)
|
|
|
+ {
|
|
|
+ ++buffer;
|
|
|
+
|
|
|
+ buffer->data = outgoingCommand->packet->data + outgoingCommand->fragmentOffset;
|
|
|
+ buffer->dataLength = outgoingCommand->fragmentLength;
|
|
|
+
|
|
|
+ host->packetSize += buffer->dataLength;
|
|
|
+
|
|
|
+ enet_list_insert(enet_list_end (& peer -> sentUnreliableCommands), outgoingCommand);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ enet_free(outgoingCommand);
|
|
|
+
|
|
|
+ ++command;
|
|
|
+ ++buffer;
|
|
|
+ }
|
|
|
+
|
|
|
+ host->commandCount = command - host->commands;
|
|
|
+ host->bufferCount = buffer - host->buffers;
|
|
|
+
|
|
|
+ if (peer->state == ENET_PEER_STATE_DISCONNECT_LATER&&
|
|
|
+ enet_list_empty (& peer -> outgoingReliableCommands) &&
|
|
|
+ enet_list_empty (& peer -> outgoingUnreliableCommands) &&
|
|
|
+ enet_list_empty (& peer -> sentReliableCommands))
|
|
|
+ enet_peer_disconnect(peer, peer->eventData);
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_check_timeouts (ENetHost * host, ENetPeer * peer, ENetEvent * event)
|
|
|
+static int enet_protocol_check_timeouts(ENetHost * host, ENetPeer * peer, ENetEvent * event)
|
|
|
{
|
|
|
- ENetOutgoingCommand * outgoingCommand;
|
|
|
- ENetListIterator currentCommand, insertPosition;
|
|
|
+ ENetOutgoingCommand * outgoingCommand;
|
|
|
+ ENetListIterator currentCommand, insertPosition;
|
|
|
+
|
|
|
+ currentCommand = enet_list_begin (& peer -> sentReliableCommands);
|
|
|
+ insertPosition = enet_list_begin (& peer -> outgoingReliableCommands);
|
|
|
+
|
|
|
+ while (currentCommand != enet_list_end (& peer -> sentReliableCommands))
|
|
|
+ {
|
|
|
+ outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
|
|
|
- currentCommand = enet_list_begin (& peer -> sentReliableCommands);
|
|
|
- insertPosition = enet_list_begin (& peer -> outgoingReliableCommands);
|
|
|
+ currentCommand = enet_list_next (currentCommand);
|
|
|
|
|
|
- while (currentCommand != enet_list_end (& peer -> sentReliableCommands))
|
|
|
- {
|
|
|
- outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
+ if (ENET_TIME_DIFFERENCE (host -> serviceTime, outgoingCommand -> sentTime)
|
|
|
+ < outgoingCommand->roundTripTimeout)
|
|
|
+ continue;
|
|
|
|
|
|
- currentCommand = enet_list_next (currentCommand);
|
|
|
+ if (peer->earliestTimeout == 0||
|
|
|
+ ENET_TIME_LESS (outgoingCommand -> sentTime, peer -> earliestTimeout))
|
|
|
+ peer->earliestTimeout = outgoingCommand->sentTime;
|
|
|
|
|
|
- if (ENET_TIME_DIFFERENCE (host -> serviceTime, outgoingCommand -> sentTime) < outgoingCommand -> roundTripTimeout)
|
|
|
- continue;
|
|
|
+ if (peer->earliestTimeout != 0
|
|
|
+ && (ENET_TIME_DIFFERENCE (host -> serviceTime, peer -> earliestTimeout)
|
|
|
+ >= peer->timeoutMaximum
|
|
|
+ || (outgoingCommand->roundTripTimeout
|
|
|
+ >= outgoingCommand->roundTripTimeoutLimit
|
|
|
+ && ENET_TIME_DIFFERENCE (host -> serviceTime, peer -> earliestTimeout)
|
|
|
+ >= peer->timeoutMinimum)))
|
|
|
+ {
|
|
|
+ enet_protocol_notify_disconnect(host, peer, event);
|
|
|
|
|
|
- if (peer -> earliestTimeout == 0 ||
|
|
|
- ENET_TIME_LESS (outgoingCommand -> sentTime, peer -> earliestTimeout))
|
|
|
- peer -> earliestTimeout = outgoingCommand -> sentTime;
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
|
|
|
- if (peer -> earliestTimeout != 0 &&
|
|
|
- (ENET_TIME_DIFFERENCE (host -> serviceTime, peer -> earliestTimeout) >= peer -> timeoutMaximum ||
|
|
|
- (outgoingCommand -> roundTripTimeout >= outgoingCommand -> roundTripTimeoutLimit &&
|
|
|
- ENET_TIME_DIFFERENCE (host -> serviceTime, peer -> earliestTimeout) >= peer -> timeoutMinimum)))
|
|
|
- {
|
|
|
- enet_protocol_notify_disconnect (host, peer, event);
|
|
|
+ if (outgoingCommand->packet != NULL)
|
|
|
+ peer->reliableDataInTransit -= outgoingCommand->fragmentLength;
|
|
|
|
|
|
- return 1;
|
|
|
- }
|
|
|
+ ++peer->packetsLost;
|
|
|
|
|
|
- if (outgoingCommand -> packet != NULL)
|
|
|
- peer -> reliableDataInTransit -= outgoingCommand -> fragmentLength;
|
|
|
-
|
|
|
- ++ peer -> packetsLost;
|
|
|
+ outgoingCommand->roundTripTimeout *= 2;
|
|
|
|
|
|
- outgoingCommand -> roundTripTimeout *= 2;
|
|
|
+ enet_list_insert(insertPosition, enet_list_remove(&outgoingCommand->outgoingCommandList));
|
|
|
|
|
|
- enet_list_insert (insertPosition, enet_list_remove (& outgoingCommand -> outgoingCommandList));
|
|
|
+ if (currentCommand == enet_list_begin (& peer -> sentReliableCommands)
|
|
|
+ && !enet_list_empty (& peer -> sentReliableCommands))
|
|
|
+ {
|
|
|
+ outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
|
|
|
- if (currentCommand == enet_list_begin (& peer -> sentReliableCommands) &&
|
|
|
- ! enet_list_empty (& peer -> sentReliableCommands))
|
|
|
- {
|
|
|
- outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
+ peer->nextTimeout = outgoingCommand->sentTime + outgoingCommand->roundTripTimeout;
|
|
|
+ }
|
|
|
+ }
|
|
|
|
|
|
- peer -> nextTimeout = outgoingCommand -> sentTime + outgoingCommand -> roundTripTimeout;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return 0;
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_send_reliable_outgoing_commands (ENetHost * host, ENetPeer * peer)
|
|
|
+static int enet_protocol_send_reliable_outgoing_commands(ENetHost * host, ENetPeer * peer)
|
|
|
{
|
|
|
- ENetProtocol * command = & host -> commands [host -> commandCount];
|
|
|
- ENetBuffer * buffer = & host -> buffers [host -> bufferCount];
|
|
|
- ENetOutgoingCommand * outgoingCommand;
|
|
|
- ENetListIterator currentCommand;
|
|
|
- ENetChannel *channel;
|
|
|
- enet_uint16 reliableWindow;
|
|
|
- size_t commandSize;
|
|
|
- int windowExceeded = 0, windowWrap = 0, canPing = 1;
|
|
|
-
|
|
|
- currentCommand = enet_list_begin (& peer -> outgoingReliableCommands);
|
|
|
-
|
|
|
- while (currentCommand != enet_list_end (& peer -> outgoingReliableCommands))
|
|
|
- {
|
|
|
- outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
-
|
|
|
- channel = outgoingCommand -> command.header.channelID < peer -> channelCount ? & peer -> channels [outgoingCommand -> command.header.channelID] : NULL;
|
|
|
- reliableWindow = outgoingCommand -> reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
|
|
|
- if (channel != NULL)
|
|
|
- {
|
|
|
- if (! windowWrap &&
|
|
|
- outgoingCommand -> sendAttempts < 1 &&
|
|
|
- ! (outgoingCommand -> reliableSequenceNumber % ENET_PEER_RELIABLE_WINDOW_SIZE) &&
|
|
|
- (channel -> reliableWindows [(reliableWindow + ENET_PEER_RELIABLE_WINDOWS - 1) % ENET_PEER_RELIABLE_WINDOWS] >= ENET_PEER_RELIABLE_WINDOW_SIZE ||
|
|
|
- channel -> usedReliableWindows & ((((1 << ENET_PEER_FREE_RELIABLE_WINDOWS) - 1) << reliableWindow) |
|
|
|
- (((1 << ENET_PEER_FREE_RELIABLE_WINDOWS) - 1) >> (ENET_PEER_RELIABLE_WINDOW_SIZE - reliableWindow)))))
|
|
|
- windowWrap = 1;
|
|
|
- if (windowWrap)
|
|
|
- {
|
|
|
- currentCommand = enet_list_next (currentCommand);
|
|
|
-
|
|
|
- continue;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (outgoingCommand -> packet != NULL)
|
|
|
- {
|
|
|
- if (! windowExceeded)
|
|
|
- {
|
|
|
- enet_uint32 windowSize = (peer -> packetThrottle * peer -> windowSize) / ENET_PEER_PACKET_THROTTLE_SCALE;
|
|
|
-
|
|
|
- if (peer -> reliableDataInTransit + outgoingCommand -> fragmentLength > ENET_MAX (windowSize, peer -> mtu))
|
|
|
- windowExceeded = 1;
|
|
|
- }
|
|
|
- if (windowExceeded)
|
|
|
- {
|
|
|
- currentCommand = enet_list_next (currentCommand);
|
|
|
-
|
|
|
- continue;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- canPing = 0;
|
|
|
-
|
|
|
- commandSize = commandSizes [outgoingCommand -> command.header.command & ENET_PROTOCOL_COMMAND_MASK];
|
|
|
- if (command >= & host -> commands [sizeof (host -> commands) / sizeof (ENetProtocol)] ||
|
|
|
- buffer + 1 >= & host -> buffers [sizeof (host -> buffers) / sizeof (ENetBuffer)] ||
|
|
|
- peer -> mtu - host -> packetSize < commandSize ||
|
|
|
- (outgoingCommand -> packet != NULL &&
|
|
|
- (enet_uint16) (peer -> mtu - host -> packetSize) < (enet_uint16) (commandSize + outgoingCommand -> fragmentLength)))
|
|
|
- {
|
|
|
- host -> continueSending = 1;
|
|
|
-
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- currentCommand = enet_list_next (currentCommand);
|
|
|
-
|
|
|
- if (channel != NULL && outgoingCommand -> sendAttempts < 1)
|
|
|
- {
|
|
|
- channel -> usedReliableWindows |= 1 << reliableWindow;
|
|
|
- ++ channel -> reliableWindows [reliableWindow];
|
|
|
- }
|
|
|
-
|
|
|
- ++ outgoingCommand -> sendAttempts;
|
|
|
-
|
|
|
- if (outgoingCommand -> roundTripTimeout == 0)
|
|
|
- {
|
|
|
- outgoingCommand -> roundTripTimeout = peer -> roundTripTime + 4 * peer -> roundTripTimeVariance;
|
|
|
- outgoingCommand -> roundTripTimeoutLimit = peer -> timeoutLimit * outgoingCommand -> roundTripTimeout;
|
|
|
- }
|
|
|
-
|
|
|
- if (enet_list_empty (& peer -> sentReliableCommands))
|
|
|
- peer -> nextTimeout = host -> serviceTime + outgoingCommand -> roundTripTimeout;
|
|
|
-
|
|
|
- enet_list_insert (enet_list_end (& peer -> sentReliableCommands),
|
|
|
- enet_list_remove (& outgoingCommand -> outgoingCommandList));
|
|
|
-
|
|
|
- outgoingCommand -> sentTime = host -> serviceTime;
|
|
|
-
|
|
|
- buffer -> data = command;
|
|
|
- buffer -> dataLength = commandSize;
|
|
|
-
|
|
|
- host -> packetSize += buffer -> dataLength;
|
|
|
- host -> headerFlags |= ENET_PROTOCOL_HEADER_FLAG_SENT_TIME;
|
|
|
-
|
|
|
- * command = outgoingCommand -> command;
|
|
|
-
|
|
|
- if (outgoingCommand -> packet != NULL)
|
|
|
- {
|
|
|
- ++ buffer;
|
|
|
-
|
|
|
- buffer -> data = outgoingCommand -> packet -> data + outgoingCommand -> fragmentOffset;
|
|
|
- buffer -> dataLength = outgoingCommand -> fragmentLength;
|
|
|
-
|
|
|
- host -> packetSize += outgoingCommand -> fragmentLength;
|
|
|
-
|
|
|
- peer -> reliableDataInTransit += outgoingCommand -> fragmentLength;
|
|
|
- }
|
|
|
-
|
|
|
- ++ peer -> packetsSent;
|
|
|
-
|
|
|
- ++ command;
|
|
|
- ++ buffer;
|
|
|
- }
|
|
|
-
|
|
|
- host -> commandCount = command - host -> commands;
|
|
|
- host -> bufferCount = buffer - host -> buffers;
|
|
|
-
|
|
|
- return canPing;
|
|
|
+ ENetProtocol * command = &host->commands[host->commandCount];
|
|
|
+ ENetBuffer * buffer = &host->buffers[host->bufferCount];
|
|
|
+ ENetOutgoingCommand * outgoingCommand;
|
|
|
+ ENetListIterator currentCommand;
|
|
|
+ ENetChannel *channel;
|
|
|
+ enet_uint16 reliableWindow;
|
|
|
+ size_t commandSize;
|
|
|
+ int windowExceeded = 0, windowWrap = 0, canPing = 1;
|
|
|
+
|
|
|
+ currentCommand = enet_list_begin (& peer -> outgoingReliableCommands);
|
|
|
+
|
|
|
+ while (currentCommand != enet_list_end (& peer -> outgoingReliableCommands))
|
|
|
+ {
|
|
|
+ outgoingCommand = (ENetOutgoingCommand *) currentCommand;
|
|
|
+
|
|
|
+ channel =
|
|
|
+ outgoingCommand->command.header.channelID < peer->channelCount ?
|
|
|
+ &peer->channels[outgoingCommand->command.header.channelID] : NULL;
|
|
|
+ reliableWindow = outgoingCommand->reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
|
|
|
+ if (channel != NULL)
|
|
|
+ {
|
|
|
+ if (!windowWrap && outgoingCommand->sendAttempts < 1
|
|
|
+ && !(outgoingCommand->reliableSequenceNumber % ENET_PEER_RELIABLE_WINDOW_SIZE)
|
|
|
+ && (channel->reliableWindows[(reliableWindow + ENET_PEER_RELIABLE_WINDOWS - 1)
|
|
|
+ % ENET_PEER_RELIABLE_WINDOWS] >= ENET_PEER_RELIABLE_WINDOW_SIZE
|
|
|
+ || channel->usedReliableWindows
|
|
|
+ & ((((1 << ENET_PEER_FREE_RELIABLE_WINDOWS) - 1)
|
|
|
+ << reliableWindow)
|
|
|
+ | (((1 << ENET_PEER_FREE_RELIABLE_WINDOWS) - 1)
|
|
|
+ >> (ENET_PEER_RELIABLE_WINDOW_SIZE
|
|
|
+ - reliableWindow)))))
|
|
|
+ windowWrap = 1;
|
|
|
+ if (windowWrap)
|
|
|
+ {
|
|
|
+ currentCommand = enet_list_next (currentCommand);
|
|
|
+
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (outgoingCommand->packet != NULL)
|
|
|
+ {
|
|
|
+ if (!windowExceeded)
|
|
|
+ {
|
|
|
+ enet_uint32 windowSize = (peer->packetThrottle * peer->windowSize)
|
|
|
+ / ENET_PEER_PACKET_THROTTLE_SCALE;
|
|
|
+
|
|
|
+ if (peer->reliableDataInTransit
|
|
|
+ + outgoingCommand->fragmentLength> ENET_MAX (windowSize, peer -> mtu))
|
|
|
+ windowExceeded = 1;
|
|
|
+ }
|
|
|
+ if (windowExceeded)
|
|
|
+ {
|
|
|
+ currentCommand = enet_list_next (currentCommand);
|
|
|
+
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ canPing = 0;
|
|
|
+
|
|
|
+ commandSize = commandSizes[outgoingCommand->command.header.command
|
|
|
+ & ENET_PROTOCOL_COMMAND_MASK];
|
|
|
+ if (command >= &host->commands[sizeof(host->commands) / sizeof(ENetProtocol)]
|
|
|
+ || buffer + 1 >= &host->buffers[sizeof(host->buffers) / sizeof(ENetBuffer)]
|
|
|
+ || peer->mtu - host->packetSize < commandSize
|
|
|
+ || (outgoingCommand->packet != NULL
|
|
|
+ && (enet_uint16) (peer->mtu - host->packetSize)
|
|
|
+ < (enet_uint16) (commandSize + outgoingCommand->fragmentLength)))
|
|
|
+ {
|
|
|
+ host->continueSending = 1;
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ currentCommand = enet_list_next (currentCommand);
|
|
|
+
|
|
|
+ if (channel != NULL && outgoingCommand->sendAttempts < 1)
|
|
|
+ {
|
|
|
+ channel->usedReliableWindows |= 1 << reliableWindow;
|
|
|
+ ++channel->reliableWindows[reliableWindow];
|
|
|
+ }
|
|
|
+
|
|
|
+ ++outgoingCommand->sendAttempts;
|
|
|
+
|
|
|
+ if (outgoingCommand->roundTripTimeout == 0)
|
|
|
+ {
|
|
|
+ outgoingCommand->roundTripTimeout = peer->roundTripTime
|
|
|
+ + 4 * peer->roundTripTimeVariance;
|
|
|
+ outgoingCommand->roundTripTimeoutLimit = peer->timeoutLimit
|
|
|
+ * outgoingCommand->roundTripTimeout;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (enet_list_empty (& peer -> sentReliableCommands))
|
|
|
+ peer->nextTimeout = host->serviceTime + outgoingCommand->roundTripTimeout;
|
|
|
+
|
|
|
+ enet_list_insert(enet_list_end (& peer -> sentReliableCommands),
|
|
|
+ enet_list_remove(&outgoingCommand->outgoingCommandList));
|
|
|
+
|
|
|
+ outgoingCommand->sentTime = host->serviceTime;
|
|
|
+
|
|
|
+ buffer->data = command;
|
|
|
+ buffer->dataLength = commandSize;
|
|
|
+
|
|
|
+ host->packetSize += buffer->dataLength;
|
|
|
+ host->headerFlags |= ENET_PROTOCOL_HEADER_FLAG_SENT_TIME;
|
|
|
+
|
|
|
+ *command = outgoingCommand->command;
|
|
|
+
|
|
|
+ if (outgoingCommand->packet != NULL)
|
|
|
+ {
|
|
|
+ ++buffer;
|
|
|
+
|
|
|
+ buffer->data = outgoingCommand->packet->data + outgoingCommand->fragmentOffset;
|
|
|
+ buffer->dataLength = outgoingCommand->fragmentLength;
|
|
|
+
|
|
|
+ host->packetSize += outgoingCommand->fragmentLength;
|
|
|
+
|
|
|
+ peer->reliableDataInTransit += outgoingCommand->fragmentLength;
|
|
|
+ }
|
|
|
+
|
|
|
+ ++peer->packetsSent;
|
|
|
+
|
|
|
+ ++command;
|
|
|
+ ++buffer;
|
|
|
+ }
|
|
|
+
|
|
|
+ host->commandCount = command - host->commands;
|
|
|
+ host->bufferCount = buffer - host->buffers;
|
|
|
+
|
|
|
+ return canPing;
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-enet_protocol_send_outgoing_commands (ENetHost * host, ENetEvent * event, int checkForTimeouts)
|
|
|
+static int enet_protocol_send_outgoing_commands(ENetHost * host, ENetEvent * event,
|
|
|
+ int checkForTimeouts)
|
|
|
{
|
|
|
- enet_uint8 headerData [sizeof (ENetProtocolHeader) + sizeof (enet_uint32)];
|
|
|
- ENetProtocolHeader * header = (ENetProtocolHeader *) headerData;
|
|
|
- ENetPeer * currentPeer;
|
|
|
- int sentLength;
|
|
|
- size_t shouldCompress = 0;
|
|
|
-
|
|
|
- host -> continueSending = 1;
|
|
|
-
|
|
|
- while (host -> continueSending)
|
|
|
- for (host -> continueSending = 0,
|
|
|
- currentPeer = host -> peers;
|
|
|
- currentPeer < & host -> peers [host -> peerCount];
|
|
|
- ++ currentPeer)
|
|
|
- {
|
|
|
- if (currentPeer -> state == ENET_PEER_STATE_DISCONNECTED ||
|
|
|
- currentPeer -> state == ENET_PEER_STATE_ZOMBIE)
|
|
|
- continue;
|
|
|
-
|
|
|
- host -> headerFlags = 0;
|
|
|
- host -> commandCount = 0;
|
|
|
- host -> bufferCount = 1;
|
|
|
- host -> packetSize = sizeof (ENetProtocolHeader);
|
|
|
-
|
|
|
- if (! enet_list_empty (& currentPeer -> acknowledgements))
|
|
|
- enet_protocol_send_acknowledgements (host, currentPeer);
|
|
|
-
|
|
|
- if (checkForTimeouts != 0 &&
|
|
|
- ! enet_list_empty (& currentPeer -> sentReliableCommands) &&
|
|
|
- ENET_TIME_GREATER_EQUAL (host -> serviceTime, currentPeer -> nextTimeout) &&
|
|
|
- enet_protocol_check_timeouts (host, currentPeer, event) == 1)
|
|
|
- {
|
|
|
- if (event != NULL && event -> type != ENET_EVENT_TYPE_NONE)
|
|
|
- return 1;
|
|
|
- else
|
|
|
- continue;
|
|
|
- }
|
|
|
-
|
|
|
- if ((enet_list_empty (& currentPeer -> outgoingReliableCommands) ||
|
|
|
- enet_protocol_send_reliable_outgoing_commands (host, currentPeer)) &&
|
|
|
- enet_list_empty (& currentPeer -> sentReliableCommands) &&
|
|
|
- ENET_TIME_DIFFERENCE (host -> serviceTime, currentPeer -> lastReceiveTime) >= currentPeer -> pingInterval &&
|
|
|
- currentPeer -> mtu - host -> packetSize >= sizeof (ENetProtocolPing))
|
|
|
- {
|
|
|
- enet_peer_ping (currentPeer);
|
|
|
- enet_protocol_send_reliable_outgoing_commands (host, currentPeer);
|
|
|
- }
|
|
|
-
|
|
|
- if (! enet_list_empty (& currentPeer -> outgoingUnreliableCommands))
|
|
|
- enet_protocol_send_unreliable_outgoing_commands (host, currentPeer);
|
|
|
-
|
|
|
- if (host -> commandCount == 0)
|
|
|
- continue;
|
|
|
-
|
|
|
- if (currentPeer -> packetLossEpoch == 0)
|
|
|
- currentPeer -> packetLossEpoch = host -> serviceTime;
|
|
|
- else
|
|
|
- if (ENET_TIME_DIFFERENCE (host -> serviceTime, currentPeer -> packetLossEpoch) >= ENET_PEER_PACKET_LOSS_INTERVAL &&
|
|
|
- currentPeer -> packetsSent > 0)
|
|
|
- {
|
|
|
- enet_uint32 packetLoss = currentPeer -> packetsLost * ENET_PEER_PACKET_LOSS_SCALE / currentPeer -> packetsSent;
|
|
|
+ enet_uint8 headerData[sizeof(ENetProtocolHeader) + sizeof(enet_uint32)];
|
|
|
+ ENetProtocolHeader * header = (ENetProtocolHeader *) headerData;
|
|
|
+ ENetPeer * currentPeer;
|
|
|
+ int sentLength;
|
|
|
+ size_t shouldCompress = 0;
|
|
|
+
|
|
|
+ host->continueSending = 1;
|
|
|
+
|
|
|
+ while (host->continueSending)
|
|
|
+ for (host->continueSending = 0, currentPeer = host->peers;
|
|
|
+ currentPeer < &host->peers[host->peerCount]; ++currentPeer)
|
|
|
+ {
|
|
|
+ if (currentPeer->state == ENET_PEER_STATE_DISCONNECTED
|
|
|
+ || currentPeer->state == ENET_PEER_STATE_ZOMBIE)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ host->headerFlags = 0;
|
|
|
+ host->commandCount = 0;
|
|
|
+ host->bufferCount = 1;
|
|
|
+ host->packetSize = sizeof(ENetProtocolHeader);
|
|
|
+
|
|
|
+ if (!enet_list_empty (& currentPeer -> acknowledgements))
|
|
|
+ enet_protocol_send_acknowledgements(host, currentPeer);
|
|
|
+
|
|
|
+ if (checkForTimeouts != 0 && !enet_list_empty (& currentPeer -> sentReliableCommands)
|
|
|
+ && ENET_TIME_GREATER_EQUAL (host -> serviceTime, currentPeer -> nextTimeout)
|
|
|
+ && enet_protocol_check_timeouts(host, currentPeer, event) == 1)
|
|
|
+ {
|
|
|
+ if (event != NULL && event->type != ENET_EVENT_TYPE_NONE)
|
|
|
+ return 1;
|
|
|
+ else
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((enet_list_empty (& currentPeer -> outgoingReliableCommands)
|
|
|
+ || enet_protocol_send_reliable_outgoing_commands(host, currentPeer))
|
|
|
+ && enet_list_empty (& currentPeer -> sentReliableCommands)
|
|
|
+ && ENET_TIME_DIFFERENCE (host -> serviceTime, currentPeer -> lastReceiveTime)
|
|
|
+ >= currentPeer->pingInterval
|
|
|
+ && currentPeer->mtu - host->packetSize >= sizeof(ENetProtocolPing))
|
|
|
+ {
|
|
|
+ enet_peer_ping(currentPeer);
|
|
|
+ enet_protocol_send_reliable_outgoing_commands(host, currentPeer);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!enet_list_empty (& currentPeer -> outgoingUnreliableCommands))
|
|
|
+ enet_protocol_send_unreliable_outgoing_commands(host, currentPeer);
|
|
|
+
|
|
|
+ if (host->commandCount == 0)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ if (currentPeer->packetLossEpoch == 0)
|
|
|
+ currentPeer->packetLossEpoch = host->serviceTime;
|
|
|
+ else if (ENET_TIME_DIFFERENCE (host -> serviceTime, currentPeer -> packetLossEpoch)
|
|
|
+ >= ENET_PEER_PACKET_LOSS_INTERVAL && currentPeer->packetsSent > 0)
|
|
|
+ {
|
|
|
+ enet_uint32 packetLoss = currentPeer->packetsLost * ENET_PEER_PACKET_LOSS_SCALE
|
|
|
+ / currentPeer->packetsSent;
|
|
|
|
|
|
#ifdef ENET_DEBUG
|
|
|
#ifdef WIN32
|
|
|
- printf (
|
|
|
+ printf (
|
|
|
#else
|
|
|
- fprintf (stderr,
|
|
|
+ fprintf (stderr,
|
|
|
#endif
|
|
|
- "peer %u: %f%%+-%f%% packet loss, %u+-%u ms round trip time, %f%% throttle, %u/%u outgoing, %u/%u incoming\n", currentPeer -> incomingPeerID, currentPeer -> packetLoss / (float) ENET_PEER_PACKET_LOSS_SCALE, currentPeer -> packetLossVariance / (float) ENET_PEER_PACKET_LOSS_SCALE, currentPeer -> roundTripTime, currentPeer -> roundTripTimeVariance, currentPeer -> packetThrottle / (float) ENET_PEER_PACKET_THROTTLE_SCALE, enet_list_size (& currentPeer -> outgoingReliableCommands), enet_list_size (& currentPeer -> outgoingUnreliableCommands), currentPeer -> channels != NULL ? enet_list_size (& currentPeer -> channels -> incomingReliableCommands) : 0, currentPeer -> channels != NULL ? enet_list_size (& currentPeer -> channels -> incomingUnreliableCommands) : 0);
|
|
|
+ "peer %u: %f%%+-%f%% packet loss, %u+-%u ms round trip time, %f%% throttle, %u/%u outgoing, %u/%u incoming\n", currentPeer -> incomingPeerID, currentPeer -> packetLoss / (float) ENET_PEER_PACKET_LOSS_SCALE, currentPeer -> packetLossVariance / (float) ENET_PEER_PACKET_LOSS_SCALE, currentPeer -> roundTripTime, currentPeer -> roundTripTimeVariance, currentPeer -> packetThrottle / (float) ENET_PEER_PACKET_THROTTLE_SCALE, enet_list_size (& currentPeer -> outgoingReliableCommands), enet_list_size (& currentPeer -> outgoingUnreliableCommands), currentPeer -> channels != NULL ? enet_list_size (& currentPeer -> channels -> incomingReliableCommands) : 0, currentPeer -> channels != NULL ? enet_list_size (& currentPeer -> channels -> incomingUnreliableCommands) : 0);
|
|
|
#endif
|
|
|
-
|
|
|
- currentPeer -> packetLossVariance -= currentPeer -> packetLossVariance / 4;
|
|
|
-
|
|
|
- if (packetLoss >= currentPeer -> packetLoss)
|
|
|
- {
|
|
|
- currentPeer -> packetLoss += (packetLoss - currentPeer -> packetLoss) / 8;
|
|
|
- currentPeer -> packetLossVariance += (packetLoss - currentPeer -> packetLoss) / 4;
|
|
|
- }
|
|
|
- else
|
|
|
- {
|
|
|
- currentPeer -> packetLoss -= (currentPeer -> packetLoss - packetLoss) / 8;
|
|
|
- currentPeer -> packetLossVariance += (currentPeer -> packetLoss - packetLoss) / 4;
|
|
|
- }
|
|
|
-
|
|
|
- currentPeer -> packetLossEpoch = host -> serviceTime;
|
|
|
- currentPeer -> packetsSent = 0;
|
|
|
- currentPeer -> packetsLost = 0;
|
|
|
- }
|
|
|
-
|
|
|
- host -> buffers -> data = headerData;
|
|
|
- if (host -> headerFlags & ENET_PROTOCOL_HEADER_FLAG_SENT_TIME)
|
|
|
- {
|
|
|
- header -> sentTime = ENET_HOST_TO_NET_16 (host -> serviceTime & 0xFFFF);
|
|
|
-
|
|
|
- host -> buffers -> dataLength = sizeof (ENetProtocolHeader);
|
|
|
- }
|
|
|
- else
|
|
|
- host -> buffers -> dataLength = (size_t) & ((ENetProtocolHeader *) 0) -> sentTime;
|
|
|
-
|
|
|
- shouldCompress = 0;
|
|
|
- if (host -> compressor.context != NULL && host -> compressor.compress != NULL)
|
|
|
- {
|
|
|
- size_t originalSize = host -> packetSize - sizeof(ENetProtocolHeader),
|
|
|
- compressedSize = host -> compressor.compress (host -> compressor.context,
|
|
|
- & host -> buffers [1], host -> bufferCount - 1,
|
|
|
- originalSize,
|
|
|
- host -> packetData [1],
|
|
|
- originalSize);
|
|
|
- if (compressedSize > 0 && compressedSize < originalSize)
|
|
|
- {
|
|
|
- host -> headerFlags |= ENET_PROTOCOL_HEADER_FLAG_COMPRESSED;
|
|
|
- shouldCompress = compressedSize;
|
|
|
+
|
|
|
+ currentPeer->packetLossVariance -= currentPeer->packetLossVariance / 4;
|
|
|
+
|
|
|
+ if (packetLoss >= currentPeer->packetLoss)
|
|
|
+ {
|
|
|
+ currentPeer->packetLoss += (packetLoss - currentPeer->packetLoss) / 8;
|
|
|
+ currentPeer->packetLossVariance += (packetLoss - currentPeer->packetLoss) / 4;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ currentPeer->packetLoss -= (currentPeer->packetLoss - packetLoss) / 8;
|
|
|
+ currentPeer->packetLossVariance += (currentPeer->packetLoss - packetLoss) / 4;
|
|
|
+ }
|
|
|
+
|
|
|
+ currentPeer->packetLossEpoch = host->serviceTime;
|
|
|
+ currentPeer->packetsSent = 0;
|
|
|
+ currentPeer->packetsLost = 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ host->buffers->data = headerData;
|
|
|
+ if (host->headerFlags & ENET_PROTOCOL_HEADER_FLAG_SENT_TIME)
|
|
|
+ {
|
|
|
+ header->sentTime = ENET_HOST_TO_NET_16 (host -> serviceTime & 0xFFFF);
|
|
|
+
|
|
|
+ host->buffers->dataLength = sizeof(ENetProtocolHeader);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ host->buffers->dataLength = (size_t) & ((ENetProtocolHeader *) 0)->sentTime;
|
|
|
+
|
|
|
+ shouldCompress = 0;
|
|
|
+ if (host->compressor.context != NULL && host->compressor.compress != NULL)
|
|
|
+ {
|
|
|
+ size_t originalSize = host->packetSize - sizeof(ENetProtocolHeader),
|
|
|
+ compressedSize = host->compressor.compress(host->compressor.context,
|
|
|
+ &host->buffers[1], host->bufferCount - 1, originalSize,
|
|
|
+ host->packetData[1], originalSize);
|
|
|
+ if (compressedSize > 0 && compressedSize < originalSize)
|
|
|
+ {
|
|
|
+ host->headerFlags |= ENET_PROTOCOL_HEADER_FLAG_COMPRESSED;
|
|
|
+ shouldCompress = compressedSize;
|
|
|
#ifdef ENET_DEBUG_COMPRESS
|
|
|
#ifdef WIN32
|
|
|
- printf (
|
|
|
+ printf (
|
|
|
#else
|
|
|
- fprintf (stderr,
|
|
|
+ fprintf (stderr,
|
|
|
#endif
|
|
|
- "peer %u: compressed %u -> %u (%u%%)\n", currentPeer -> incomingPeerID, originalSize, compressedSize, (compressedSize * 100) / originalSize);
|
|
|
+ "peer %u: compressed %u -> %u (%u%%)\n", currentPeer -> incomingPeerID, originalSize, compressedSize, (compressedSize * 100) / originalSize);
|
|
|
#endif
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (currentPeer -> outgoingPeerID < ENET_PROTOCOL_MAXIMUM_PEER_ID)
|
|
|
- host -> headerFlags |= currentPeer -> outgoingSessionID << ENET_PROTOCOL_HEADER_SESSION_SHIFT;
|
|
|
- header -> peerID = ENET_HOST_TO_NET_16 (currentPeer -> outgoingPeerID | host -> headerFlags);
|
|
|
- if (host -> checksum != NULL)
|
|
|
- {
|
|
|
- enet_uint32 * checksum = (enet_uint32 *) & headerData [host -> buffers -> dataLength];
|
|
|
- * checksum = currentPeer -> outgoingPeerID < ENET_PROTOCOL_MAXIMUM_PEER_ID ? currentPeer -> connectID : 0;
|
|
|
- host -> buffers -> dataLength += sizeof (enet_uint32);
|
|
|
- * checksum = host -> checksum (host -> buffers, host -> bufferCount);
|
|
|
- }
|
|
|
-
|
|
|
- if (shouldCompress > 0)
|
|
|
- {
|
|
|
- host -> buffers [1].data = host -> packetData [1];
|
|
|
- host -> buffers [1].dataLength = shouldCompress;
|
|
|
- host -> bufferCount = 2;
|
|
|
- }
|
|
|
-
|
|
|
- currentPeer -> lastSendTime = host -> serviceTime;
|
|
|
-
|
|
|
- sentLength = enet_socket_send (host -> socket, & currentPeer -> address, host -> buffers, host -> bufferCount);
|
|
|
-
|
|
|
- enet_protocol_remove_sent_unreliable_commands (currentPeer);
|
|
|
-
|
|
|
- if (sentLength < 0)
|
|
|
- return -1;
|
|
|
-
|
|
|
- host -> totalSentData += sentLength;
|
|
|
- host -> totalSentPackets ++;
|
|
|
- }
|
|
|
-
|
|
|
- return 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (currentPeer->outgoingPeerID < ENET_PROTOCOL_MAXIMUM_PEER_ID)
|
|
|
+ host->headerFlags |= currentPeer->outgoingSessionID
|
|
|
+ << ENET_PROTOCOL_HEADER_SESSION_SHIFT;
|
|
|
+ header->peerID =
|
|
|
+ ENET_HOST_TO_NET_16 (currentPeer -> outgoingPeerID | host -> headerFlags);
|
|
|
+ if (host->checksum != NULL)
|
|
|
+ {
|
|
|
+ enet_uint32 * checksum = (enet_uint32 *) &headerData[host->buffers->dataLength];
|
|
|
+ *checksum =
|
|
|
+ currentPeer->outgoingPeerID < ENET_PROTOCOL_MAXIMUM_PEER_ID ?
|
|
|
+ currentPeer->connectID : 0;
|
|
|
+ host->buffers->dataLength += sizeof(enet_uint32);
|
|
|
+ *checksum = host->checksum(host->buffers, host->bufferCount);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (shouldCompress > 0)
|
|
|
+ {
|
|
|
+ host->buffers[1].data = host->packetData[1];
|
|
|
+ host->buffers[1].dataLength = shouldCompress;
|
|
|
+ host->bufferCount = 2;
|
|
|
+ }
|
|
|
+
|
|
|
+ currentPeer->lastSendTime = host->serviceTime;
|
|
|
+
|
|
|
+ sentLength = enet_socket_send(host->socket, ¤tPeer->address, host->buffers,
|
|
|
+ host->bufferCount);
|
|
|
+
|
|
|
+ enet_protocol_remove_sent_unreliable_commands(currentPeer);
|
|
|
+
|
|
|
+ if (sentLength < 0)
|
|
|
+ return -1;
|
|
|
+
|
|
|
+ host->totalSentData += sentLength;
|
|
|
+ host->totalSentPackets++;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
/** Sends any queued packets on the host specified to its designated peers.
|
|
|
|
|
|
- @param host host to flush
|
|
|
- @remarks this function need only be used in circumstances where one wishes to send queued packets earlier than in a call to enet_host_service().
|
|
|
- @ingroup host
|
|
|
-*/
|
|
|
-void
|
|
|
-enet_host_flush (ENetHost * host)
|
|
|
+ @param host host to flush
|
|
|
+ @remarks this function need only be used in circumstances where one wishes to send queued packets earlier than in a call to enet_host_service().
|
|
|
+ @ingroup host
|
|
|
+ */
|
|
|
+void enet_host_flush(ENetHost * host)
|
|
|
{
|
|
|
- host -> serviceTime = enet_time_get ();
|
|
|
+ host->serviceTime = enet_time_get();
|
|
|
|
|
|
- enet_protocol_send_outgoing_commands (host, NULL, 0);
|
|
|
+ enet_protocol_send_outgoing_commands(host, NULL, 0);
|
|
|
}
|
|
|
|
|
|
/** Checks for any queued events on the host and dispatches one if available.
|
|
|
|
|
|
- @param host host to check for events
|
|
|
- @param event an event structure where event details will be placed if available
|
|
|
- @retval > 0 if an event was dispatched
|
|
|
- @retval 0 if no events are available
|
|
|
- @retval < 0 on failure
|
|
|
- @ingroup host
|
|
|
-*/
|
|
|
-int
|
|
|
-enet_host_check_events (ENetHost * host, ENetEvent * event)
|
|
|
+ @param host host to check for events
|
|
|
+ @param event an event structure where event details will be placed if available
|
|
|
+ @retval > 0 if an event was dispatched
|
|
|
+ @retval 0 if no events are available
|
|
|
+ @retval < 0 on failure
|
|
|
+ @ingroup host
|
|
|
+ */
|
|
|
+int enet_host_check_events(ENetHost * host, ENetEvent * event)
|
|
|
{
|
|
|
- if (event == NULL) return -1;
|
|
|
+ if (event == NULL)
|
|
|
+ return -1;
|
|
|
|
|
|
- event -> type = ENET_EVENT_TYPE_NONE;
|
|
|
- event -> peer = NULL;
|
|
|
- event -> packet = NULL;
|
|
|
+ event->type = ENET_EVENT_TYPE_NONE;
|
|
|
+ event->peer = NULL;
|
|
|
+ event->packet = NULL;
|
|
|
|
|
|
- return enet_protocol_dispatch_incoming_commands (host, event);
|
|
|
+ return enet_protocol_dispatch_incoming_commands(host, event);
|
|
|
}
|
|
|
|
|
|
/** Waits for events on the host specified and shuttles packets between
|
|
|
- the host and its peers.
|
|
|
-
|
|
|
- @param host host to service
|
|
|
- @param event an event structure where event details will be placed if one occurs
|
|
|
- if event == NULL then no events will be delivered
|
|
|
- @param timeout number of milliseconds that ENet should wait for events
|
|
|
- @retval > 0 if an event occurred within the specified time limit
|
|
|
- @retval 0 if no event occurred
|
|
|
- @retval < 0 on failure
|
|
|
- @remarks enet_host_service should be called fairly regularly for adequate performance
|
|
|
- @ingroup host
|
|
|
-*/
|
|
|
-int
|
|
|
-enet_host_service (ENetHost * host, ENetEvent * event, enet_uint32 timeout)
|
|
|
+ the host and its peers.
|
|
|
+
|
|
|
+ @param host host to service
|
|
|
+ @param event an event structure where event details will be placed if one occurs
|
|
|
+ if event == NULL then no events will be delivered
|
|
|
+ @param timeout number of milliseconds that ENet should wait for events
|
|
|
+ @retval > 0 if an event occurred within the specified time limit
|
|
|
+ @retval 0 if no event occurred
|
|
|
+ @retval < 0 on failure
|
|
|
+ @remarks enet_host_service should be called fairly regularly for adequate performance
|
|
|
+ @ingroup host
|
|
|
+ */
|
|
|
+int enet_host_service(ENetHost * host, ENetEvent * event, enet_uint32 timeout)
|
|
|
{
|
|
|
- enet_uint32 waitCondition;
|
|
|
+ enet_uint32 waitCondition;
|
|
|
+
|
|
|
+ if (event != NULL)
|
|
|
+ {
|
|
|
+ event->type = ENET_EVENT_TYPE_NONE;
|
|
|
+ event->peer = NULL;
|
|
|
+ event->packet = NULL;
|
|
|
+
|
|
|
+ switch (enet_protocol_dispatch_incoming_commands(host, event))
|
|
|
+ {
|
|
|
+ case 1:
|
|
|
+ return 1;
|
|
|
|
|
|
- if (event != NULL)
|
|
|
- {
|
|
|
- event -> type = ENET_EVENT_TYPE_NONE;
|
|
|
- event -> peer = NULL;
|
|
|
- event -> packet = NULL;
|
|
|
+ case -1:
|
|
|
+ perror("Error dispatching incoming packets");
|
|
|
|
|
|
- switch (enet_protocol_dispatch_incoming_commands (host, event))
|
|
|
- {
|
|
|
- case 1:
|
|
|
- return 1;
|
|
|
+ return -1;
|
|
|
|
|
|
- case -1:
|
|
|
- perror ("Error dispatching incoming packets");
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
|
|
|
- return -1;
|
|
|
+ host->serviceTime = enet_time_get();
|
|
|
|
|
|
- default:
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
+ timeout += host->serviceTime;
|
|
|
|
|
|
- host -> serviceTime = enet_time_get ();
|
|
|
-
|
|
|
- timeout += host -> serviceTime;
|
|
|
+ do
|
|
|
+ {
|
|
|
+ if (ENET_TIME_DIFFERENCE (host -> serviceTime, host -> bandwidthThrottleEpoch)
|
|
|
+ >= ENET_HOST_BANDWIDTH_THROTTLE_INTERVAL)
|
|
|
+ enet_host_bandwidth_throttle(host);
|
|
|
|
|
|
- do
|
|
|
- {
|
|
|
- if (ENET_TIME_DIFFERENCE (host -> serviceTime, host -> bandwidthThrottleEpoch) >= ENET_HOST_BANDWIDTH_THROTTLE_INTERVAL)
|
|
|
- enet_host_bandwidth_throttle (host);
|
|
|
+ switch (enet_protocol_send_outgoing_commands(host, event, 1))
|
|
|
+ {
|
|
|
+ case 1:
|
|
|
+ return 1;
|
|
|
|
|
|
- switch (enet_protocol_send_outgoing_commands (host, event, 1))
|
|
|
- {
|
|
|
- case 1:
|
|
|
- return 1;
|
|
|
+ case -1:
|
|
|
+ perror("Error sending outgoing packets");
|
|
|
|
|
|
- case -1:
|
|
|
- perror ("Error sending outgoing packets");
|
|
|
+ return -1;
|
|
|
|
|
|
- return -1;
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
|
|
|
- default:
|
|
|
- break;
|
|
|
- }
|
|
|
+ switch (enet_protocol_receive_incoming_commands(host, event))
|
|
|
+ {
|
|
|
+ case 1:
|
|
|
+ return 1;
|
|
|
|
|
|
- switch (enet_protocol_receive_incoming_commands (host, event))
|
|
|
- {
|
|
|
- case 1:
|
|
|
- return 1;
|
|
|
+ case -1:
|
|
|
+ perror("Error receiving incoming packets");
|
|
|
|
|
|
- case -1:
|
|
|
- perror ("Error receiving incoming packets");
|
|
|
+ return -1;
|
|
|
|
|
|
- return -1;
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
|
|
|
- default:
|
|
|
- break;
|
|
|
- }
|
|
|
+ switch (enet_protocol_send_outgoing_commands(host, event, 1))
|
|
|
+ {
|
|
|
+ case 1:
|
|
|
+ return 1;
|
|
|
|
|
|
- switch (enet_protocol_send_outgoing_commands (host, event, 1))
|
|
|
- {
|
|
|
- case 1:
|
|
|
- return 1;
|
|
|
+ case -1:
|
|
|
+ perror("Error sending outgoing packets");
|
|
|
|
|
|
- case -1:
|
|
|
- perror ("Error sending outgoing packets");
|
|
|
+ return -1;
|
|
|
|
|
|
- return -1;
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
|
|
|
- default:
|
|
|
- break;
|
|
|
- }
|
|
|
+ if (event != NULL)
|
|
|
+ {
|
|
|
+ switch (enet_protocol_dispatch_incoming_commands(host, event))
|
|
|
+ {
|
|
|
+ case 1:
|
|
|
+ return 1;
|
|
|
|
|
|
- if (event != NULL)
|
|
|
- {
|
|
|
- switch (enet_protocol_dispatch_incoming_commands (host, event))
|
|
|
- {
|
|
|
- case 1:
|
|
|
- return 1;
|
|
|
+ case -1:
|
|
|
+ perror("Error dispatching incoming packets");
|
|
|
|
|
|
- case -1:
|
|
|
- perror ("Error dispatching incoming packets");
|
|
|
+ return -1;
|
|
|
|
|
|
- return -1;
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
|
|
|
- default:
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
+ host->serviceTime = enet_time_get();
|
|
|
|
|
|
- host -> serviceTime = enet_time_get ();
|
|
|
+ if (ENET_TIME_GREATER_EQUAL (host -> serviceTime, timeout))
|
|
|
+ return 0;
|
|
|
|
|
|
- if (ENET_TIME_GREATER_EQUAL (host -> serviceTime, timeout))
|
|
|
- return 0;
|
|
|
+ waitCondition = ENET_SOCKET_WAIT_RECEIVE;
|
|
|
|
|
|
- waitCondition = ENET_SOCKET_WAIT_RECEIVE;
|
|
|
+ if (enet_socket_wait(host->socket, &waitCondition,
|
|
|
+ ENET_TIME_DIFFERENCE (timeout, host -> serviceTime)) != 0)
|
|
|
+ return -1;
|
|
|
|
|
|
- if (enet_socket_wait (host -> socket, & waitCondition, ENET_TIME_DIFFERENCE (timeout, host -> serviceTime)) != 0)
|
|
|
- return -1;
|
|
|
-
|
|
|
- host -> serviceTime = enet_time_get ();
|
|
|
- } while (waitCondition == ENET_SOCKET_WAIT_RECEIVE);
|
|
|
+ host->serviceTime = enet_time_get();
|
|
|
+ }
|
|
|
+ while (waitCondition == ENET_SOCKET_WAIT_RECEIVE);
|
|
|
|
|
|
- return 0;
|
|
|
+ return 0;
|
|
|
}
|
|
|
|