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author | eihrul <eihrul> | 2007-09-01 02:42:31 +0000 |
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committer | eihrul <eihrul> | 2007-09-01 02:42:31 +0000 |
commit | 506095210430f4581ff5027f70d395530686b85b (patch) | |
tree | f9a73aa70657afacf3406214f553538673713fc6 /protocol.c | |
parent | 57bb5e87bcc41400b49ec645ce8eb4b00f2c2c34 (diff) | |
download | enet-506095210430f4581ff5027f70d395530686b85b.tar.gz enet-506095210430f4581ff5027f70d395530686b85b.zip |
*** empty log message ***
Diffstat (limited to 'protocol.c')
-rw-r--r-- | protocol.c | 83 |
1 files changed, 51 insertions, 32 deletions
@@ -9,8 +9,6 @@ #include "enet/time.h" #include "enet/enet.h" -static enet_uint32 timeCurrent; - static size_t commandSizes [ENET_PROTOCOL_COMMAND_COUNT] = { 0, @@ -605,17 +603,17 @@ enet_protocol_handle_acknowledge (ENetHost * host, ENetEvent * event, ENetPeer * ENetProtocolCommand commandNumber; receivedSentTime = ENET_NET_TO_HOST_16 (command -> acknowledge.receivedSentTime); - receivedSentTime |= timeCurrent & 0xFFFF0000; - if ((receivedSentTime & 0x8000) > (timeCurrent & 0x8000)) + receivedSentTime |= host -> serviceTime & 0xFFFF0000; + if ((receivedSentTime & 0x8000) > (host -> serviceTime & 0x8000)) receivedSentTime -= 0x10000; - if (ENET_TIME_LESS (timeCurrent, receivedSentTime)) + if (ENET_TIME_LESS (host -> serviceTime, receivedSentTime)) return 0; - peer -> lastReceiveTime = timeCurrent; + peer -> lastReceiveTime = host -> serviceTime; peer -> earliestTimeout = 0; - roundTripTime = ENET_TIME_DIFFERENCE (timeCurrent, receivedSentTime); + roundTripTime = ENET_TIME_DIFFERENCE (host -> serviceTime, receivedSentTime); enet_peer_throttle (peer, roundTripTime); @@ -639,13 +637,13 @@ enet_protocol_handle_acknowledge (ENetHost * host, ENetEvent * event, ENetPeer * peer -> highestRoundTripTimeVariance = peer -> roundTripTimeVariance; if (peer -> packetThrottleEpoch == 0 || - ENET_TIME_DIFFERENCE(timeCurrent, peer -> packetThrottleEpoch) >= peer -> packetThrottleInterval) + 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 = timeCurrent; + peer -> packetThrottleEpoch = host -> serviceTime; } receivedReliableSequenceNumber = ENET_NET_TO_HOST_16 (command -> acknowledge.receivedReliableSequenceNumber); @@ -1102,17 +1100,17 @@ enet_protocol_check_timeouts (ENetHost * host, ENetPeer * peer, ENetEvent * even currentCommand = enet_list_next (currentCommand); - if (ENET_TIME_DIFFERENCE (timeCurrent, outgoingCommand -> sentTime) < outgoingCommand -> roundTripTimeout) + if (ENET_TIME_DIFFERENCE (host -> serviceTime, outgoingCommand -> sentTime) < outgoingCommand -> roundTripTimeout) continue; - if(peer -> earliestTimeout == 0 || - ENET_TIME_LESS(outgoingCommand -> sentTime, peer -> earliestTimeout)) - peer -> earliestTimeout = outgoingCommand -> sentTime; + if (peer -> earliestTimeout == 0 || + ENET_TIME_LESS (outgoingCommand -> sentTime, peer -> earliestTimeout)) + peer -> earliestTimeout = outgoingCommand -> sentTime; if (peer -> earliestTimeout != 0 && - (ENET_TIME_DIFFERENCE(timeCurrent, peer -> earliestTimeout) >= ENET_PEER_TIMEOUT_MAXIMUM || + (ENET_TIME_DIFFERENCE (host -> serviceTime, peer -> earliestTimeout) >= ENET_PEER_TIMEOUT_MAXIMUM || (outgoingCommand -> roundTripTimeout >= outgoingCommand -> roundTripTimeoutLimit && - ENET_TIME_DIFFERENCE(timeCurrent, peer -> earliestTimeout) >= ENET_PEER_TIMEOUT_MINIMUM))) + ENET_TIME_DIFFERENCE (host -> serviceTime, peer -> earliestTimeout) >= ENET_PEER_TIMEOUT_MINIMUM))) { enet_protocol_notify_disconnect (host, peer, event); @@ -1189,12 +1187,12 @@ enet_protocol_send_reliable_outgoing_commands (ENetHost * host, ENetPeer * peer) } if (enet_list_empty (& peer -> sentReliableCommands)) - peer -> nextTimeout = timeCurrent + outgoingCommand -> roundTripTimeout; + peer -> nextTimeout = host -> serviceTime + outgoingCommand -> roundTripTimeout; enet_list_insert (enet_list_end (& peer -> sentReliableCommands), enet_list_remove (& outgoingCommand -> outgoingCommandList)); - outgoingCommand -> sentTime = timeCurrent; + outgoingCommand -> sentTime = host -> serviceTime; buffer -> data = command; buffer -> dataLength = commandSize; @@ -1255,7 +1253,7 @@ enet_protocol_send_outgoing_commands (ENetHost * host, ENetEvent * event, int ch if (checkForTimeouts != 0 && ! enet_list_empty (& currentPeer -> sentReliableCommands) && - ENET_TIME_GREATER_EQUAL (timeCurrent, currentPeer -> nextTimeout) && + ENET_TIME_GREATER_EQUAL (host -> serviceTime, currentPeer -> nextTimeout) && enet_protocol_check_timeouts (host, currentPeer, event) == 1) return 1; @@ -1263,7 +1261,7 @@ enet_protocol_send_outgoing_commands (ENetHost * host, ENetEvent * event, int ch enet_protocol_send_reliable_outgoing_commands (host, currentPeer); else if (enet_list_empty (& currentPeer -> sentReliableCommands) && - ENET_TIME_DIFFERENCE (timeCurrent, currentPeer -> lastReceiveTime) >= ENET_PEER_PING_INTERVAL && + ENET_TIME_DIFFERENCE (host -> serviceTime, currentPeer -> lastReceiveTime) >= ENET_PEER_PING_INTERVAL && currentPeer -> mtu - host -> packetSize >= sizeof (ENetProtocolPing)) { enet_peer_ping (currentPeer); @@ -1277,9 +1275,9 @@ enet_protocol_send_outgoing_commands (ENetHost * host, ENetEvent * event, int ch continue; if (currentPeer -> packetLossEpoch == 0) - currentPeer -> packetLossEpoch = timeCurrent; + currentPeer -> packetLossEpoch = host -> serviceTime; else - if (ENET_TIME_DIFFERENCE (timeCurrent, currentPeer -> packetLossEpoch) >= ENET_PEER_PACKET_LOSS_INTERVAL && + 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; @@ -1306,7 +1304,7 @@ enet_protocol_send_outgoing_commands (ENetHost * host, ENetEvent * event, int ch currentPeer -> packetLossVariance += (currentPeer -> packetLoss - packetLoss) / 4; } - currentPeer -> packetLossEpoch = timeCurrent; + currentPeer -> packetLossEpoch = host -> serviceTime; currentPeer -> packetsSent = 0; currentPeer -> packetsLost = 0; } @@ -1317,7 +1315,7 @@ enet_protocol_send_outgoing_commands (ENetHost * host, ENetEvent * event, int ch host -> buffers -> data = & header; if (host -> headerFlags & ENET_PROTOCOL_HEADER_FLAG_SENT_TIME) { - header.sentTime = ENET_HOST_TO_NET_16 (timeCurrent & 0xFFFF); + header.sentTime = ENET_HOST_TO_NET_16 (host -> serviceTime & 0xFFFF); host -> buffers -> dataLength = sizeof (ENetProtocolHeader); } @@ -1328,7 +1326,7 @@ enet_protocol_send_outgoing_commands (ENetHost * host, ENetEvent * event, int ch header.checksum = enet_crc32 (host -> buffers, host -> bufferCount); #endif - currentPeer -> lastSendTime = timeCurrent; + currentPeer -> lastSendTime = host -> serviceTime; sentLength = enet_socket_send (host -> socket, & currentPeer -> address, host -> buffers, host -> bufferCount); @@ -1350,11 +1348,32 @@ enet_protocol_send_outgoing_commands (ENetHost * host, ENetEvent * event, int ch void enet_host_flush (ENetHost * host) { - timeCurrent = enet_time_get (); + host -> serviceTime = enet_time_get (); 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) +{ + if (event == NULL) return -1; + + event -> type = ENET_EVENT_TYPE_NONE; + event -> peer = NULL; + event -> packet = NULL; + + return enet_protocol_dispatch_incoming_commands (host, event); +} + /** Waits for events on the host specified and shuttles packets between the host and its peers. @@ -1394,13 +1413,13 @@ enet_host_service (ENetHost * host, ENetEvent * event, enet_uint32 timeout) } } - timeCurrent = enet_time_get (); + host -> serviceTime = enet_time_get (); - timeout += timeCurrent; + timeout += host -> serviceTime; do { - if (ENET_TIME_DIFFERENCE (timeCurrent, host -> bandwidthThrottleEpoch) >= ENET_HOST_BANDWIDTH_THROTTLE_INTERVAL) + 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)) @@ -1462,17 +1481,17 @@ enet_host_service (ENetHost * host, ENetEvent * event, enet_uint32 timeout) } } - timeCurrent = enet_time_get (); + host -> serviceTime = enet_time_get (); - if (ENET_TIME_GREATER_EQUAL (timeCurrent, timeout)) + if (ENET_TIME_GREATER_EQUAL (host -> serviceTime, timeout)) return 0; waitCondition = ENET_SOCKET_WAIT_RECEIVE; - if (enet_socket_wait (host -> socket, & waitCondition, ENET_TIME_DIFFERENCE (timeout, timeCurrent)) != 0) + if (enet_socket_wait (host -> socket, & waitCondition, ENET_TIME_DIFFERENCE (timeout, host -> serviceTime)) != 0) return -1; - timeCurrent = enet_time_get (); + host -> serviceTime = enet_time_get (); } while (waitCondition == ENET_SOCKET_WAIT_RECEIVE); return 0; |