2010-02-15 23:26:55 +00:00
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/*
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Copyright (C) 1996-2001 Id Software, Inc.
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Copyright (C) 2002-2009 John Fitzgibbons and others
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// net_loop.c
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* Makefile, Makefile.darwin, Makefile.w32, Makefile.w64: Build changes:
The SDL_net driver is now disabled by default and platform-specific network
drivers will be used. To compile for SDL_net, a command like "make SDLNET=1"
must be used, in which case a new preprocessor macro _USE_SDLNET will be
defined in the CFLAGS. For windows targets when not using SDL_net, WINSOCK2
is added as another option: A command line like "make WINSOCK2=1" will enable
WinSock2 api and a new preprocessor macro _USE_WINSOCK2 will be defined in
the CFLAGS. Or, a command line like "make WINSOCK2=0" will disable WinSock2
api and the old WinSock 1.1 api will be used instead. For Win64, WinSock2 is
enabled by default. For Win32, WinSock 1.1 is the default api.
* net_bsd.c, net_dgrm.c, net_loop.c, net_main.c, net_sdl.c, net_sdlnet.c,
net_udp.c, net_win.c, net_wins.c, net_wipx.c: Use the newly added net_sys.h
header. The sys_socket_t type is not in use, yet.
git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@215 af15c1b1-3010-417e-b628-4374ebc0bcbd
2010-06-21 11:10:38 +00:00
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#include "arch_def.h"
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#include "net_sys.h"
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2010-02-15 23:26:55 +00:00
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#include "quakedef.h"
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2010-06-20 17:21:10 +00:00
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#include "net_defs.h"
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2010-02-15 23:26:55 +00:00
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#include "net_loop.h"
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qboolean localconnectpending = false;
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qsocket_t *loop_client = NULL;
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qsocket_t *loop_server = NULL;
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int Loop_Init (void)
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{
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if (cls.state == ca_dedicated)
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return -1;
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return 0;
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}
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void Loop_Shutdown (void)
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{
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}
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void Loop_Listen (qboolean state)
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{
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}
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void Loop_SearchForHosts (qboolean xmit)
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{
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if (!sv.active)
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return;
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hostCacheCount = 1;
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if (Q_strcmp(hostname.string, "UNNAMED") == 0)
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Q_strcpy(hostcache[0].name, "local");
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else
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Q_strcpy(hostcache[0].name, hostname.string);
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Q_strcpy(hostcache[0].map, sv.name);
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hostcache[0].users = net_activeconnections;
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hostcache[0].maxusers = svs.maxclients;
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hostcache[0].driver = net_driverlevel;
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Q_strcpy(hostcache[0].cname, "local");
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}
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qsocket_t *Loop_Connect (char *host)
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{
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if (Q_strcmp(host,"local") != 0)
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return NULL;
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localconnectpending = true;
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if (!loop_client)
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{
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if ((loop_client = NET_NewQSocket ()) == NULL)
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{
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Con_Printf("Loop_Connect: no qsocket available\n");
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return NULL;
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}
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Q_strcpy (loop_client->address, "localhost");
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}
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loop_client->receiveMessageLength = 0;
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loop_client->sendMessageLength = 0;
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loop_client->canSend = true;
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if (!loop_server)
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{
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if ((loop_server = NET_NewQSocket ()) == NULL)
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{
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Con_Printf("Loop_Connect: no qsocket available\n");
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return NULL;
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}
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Q_strcpy (loop_server->address, "LOCAL");
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}
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loop_server->receiveMessageLength = 0;
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loop_server->sendMessageLength = 0;
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loop_server->canSend = true;
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loop_client->driverdata = (void *)loop_server;
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loop_server->driverdata = (void *)loop_client;
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return loop_client;
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}
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qsocket_t *Loop_CheckNewConnections (void)
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{
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if (!localconnectpending)
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return NULL;
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localconnectpending = false;
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loop_server->sendMessageLength = 0;
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loop_server->receiveMessageLength = 0;
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loop_server->canSend = true;
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loop_client->sendMessageLength = 0;
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loop_client->receiveMessageLength = 0;
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loop_client->canSend = true;
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return loop_server;
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}
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static int IntAlign(int value)
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{
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return (value + (sizeof(int) - 1)) & (~(sizeof(int) - 1));
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}
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int Loop_GetMessage (qsocket_t *sock)
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{
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int ret;
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int length;
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if (sock->receiveMessageLength == 0)
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return 0;
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ret = sock->receiveMessage[0];
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length = sock->receiveMessage[1] + (sock->receiveMessage[2] << 8);
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// alignment byte skipped here
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SZ_Clear (&net_message);
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SZ_Write (&net_message, &sock->receiveMessage[4], length);
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length = IntAlign(length + 4);
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sock->receiveMessageLength -= length;
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if (sock->receiveMessageLength)
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2010-02-19 23:55:17 +00:00
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memmove(sock->receiveMessage, &sock->receiveMessage[length], sock->receiveMessageLength);
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2010-02-15 23:26:55 +00:00
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if (sock->driverdata && ret == 1)
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((qsocket_t *)sock->driverdata)->canSend = true;
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return ret;
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}
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int Loop_SendMessage (qsocket_t *sock, sizebuf_t *data)
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{
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byte *buffer;
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int *bufferLength;
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if (!sock->driverdata)
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return -1;
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bufferLength = &((qsocket_t *)sock->driverdata)->receiveMessageLength;
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if ((*bufferLength + data->cursize + 4) > NET_MAXMESSAGE)
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Sys_Error("Loop_SendMessage: overflow\n");
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buffer = ((qsocket_t *)sock->driverdata)->receiveMessage + *bufferLength;
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// message type
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*buffer++ = 1;
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// length
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*buffer++ = data->cursize & 0xff;
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*buffer++ = data->cursize >> 8;
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// align
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buffer++;
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// message
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Q_memcpy(buffer, data->data, data->cursize);
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*bufferLength = IntAlign(*bufferLength + data->cursize + 4);
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sock->canSend = false;
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return 1;
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}
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int Loop_SendUnreliableMessage (qsocket_t *sock, sizebuf_t *data)
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{
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byte *buffer;
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int *bufferLength;
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if (!sock->driverdata)
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return -1;
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bufferLength = &((qsocket_t *)sock->driverdata)->receiveMessageLength;
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if ((*bufferLength + data->cursize + sizeof(byte) + sizeof(short)) > NET_MAXMESSAGE)
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return 0;
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buffer = ((qsocket_t *)sock->driverdata)->receiveMessage + *bufferLength;
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// message type
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*buffer++ = 2;
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// length
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*buffer++ = data->cursize & 0xff;
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*buffer++ = data->cursize >> 8;
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// align
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buffer++;
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// message
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Q_memcpy(buffer, data->data, data->cursize);
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*bufferLength = IntAlign(*bufferLength + data->cursize + 4);
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return 1;
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}
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qboolean Loop_CanSendMessage (qsocket_t *sock)
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{
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if (!sock->driverdata)
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return false;
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return sock->canSend;
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}
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qboolean Loop_CanSendUnreliableMessage (qsocket_t *sock)
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{
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return true;
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}
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void Loop_Close (qsocket_t *sock)
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{
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if (sock->driverdata)
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((qsocket_t *)sock->driverdata)->driverdata = NULL;
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sock->receiveMessageLength = 0;
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sock->sendMessageLength = 0;
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sock->canSend = true;
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if (sock == loop_client)
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loop_client = NULL;
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else
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loop_server = NULL;
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}
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