Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: bf4ac424ce
Fetching contributors…

Cannot retrieve contributors at this time

246 lines (183 sloc) 5.254 kb
/*
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// net_loop.c
#include "quakedef.h"
#include "net_loop.h"
qboolean localconnectpending = false;
qsocket_t *loop_client = NULL;
qsocket_t *loop_server = NULL;
int Loop_Init (void)
{
if (cls.state == ca_dedicated)
return -1;
return 0;
}
void Loop_Shutdown (void)
{
}
void Loop_Listen (qboolean state)
{
}
void Loop_SearchForHosts (qboolean xmit)
{
if (!sv.active)
return;
hostCacheCount = 1;
if (Q_strcmp(hostname.string, "UNNAMED") == 0)
Q_strcpy(hostcache[0].name, "local");
else
Q_strcpy(hostcache[0].name, hostname.string);
Q_strcpy(hostcache[0].map, sv.name);
hostcache[0].users = net_activeconnections;
hostcache[0].maxusers = svs.maxclients;
hostcache[0].driver = net_driverlevel;
Q_strcpy(hostcache[0].cname, "local");
}
qsocket_t *Loop_Connect (char *host)
{
if (Q_strcmp(host,"local") != 0)
return NULL;
localconnectpending = true;
if (!loop_client)
{
if ((loop_client = NET_NewQSocket ()) == NULL)
{
Con_Printf("Loop_Connect: no qsocket available\n");
return NULL;
}
Q_strcpy (loop_client->address, "localhost");
}
loop_client->receiveMessageLength = 0;
loop_client->sendMessageLength = 0;
loop_client->canSend = true;
if (!loop_server)
{
if ((loop_server = NET_NewQSocket ()) == NULL)
{
Con_Printf("Loop_Connect: no qsocket available\n");
return NULL;
}
Q_strcpy (loop_server->address, "LOCAL");
}
loop_server->receiveMessageLength = 0;
loop_server->sendMessageLength = 0;
loop_server->canSend = true;
loop_client->driverdata = (void *)loop_server;
loop_server->driverdata = (void *)loop_client;
return loop_client;
}
qsocket_t *Loop_CheckNewConnections (void)
{
if (!localconnectpending)
return NULL;
localconnectpending = false;
loop_server->sendMessageLength = 0;
loop_server->receiveMessageLength = 0;
loop_server->canSend = true;
loop_client->sendMessageLength = 0;
loop_client->receiveMessageLength = 0;
loop_client->canSend = true;
return loop_server;
}
static int IntAlign(int value)
{
return (value + (sizeof(int) - 1)) & (~(sizeof(int) - 1));
}
int Loop_GetMessage (qsocket_t *sock)
{
int ret;
int length;
if (sock->receiveMessageLength == 0)
return 0;
ret = sock->receiveMessage[0];
length = sock->receiveMessage[1] + (sock->receiveMessage[2] << 8);
// alignment byte skipped here
SZ_Clear (&net_message);
SZ_Write (&net_message, &sock->receiveMessage[4], length);
length = IntAlign(length + 4);
sock->receiveMessageLength -= length;
if (sock->receiveMessageLength)
Q_memcpy(sock->receiveMessage, &sock->receiveMessage[length], sock->receiveMessageLength);
if (sock->driverdata && ret == 1)
((qsocket_t *)sock->driverdata)->canSend = true;
return ret;
}
int Loop_SendMessage (qsocket_t *sock, sizebuf_t *data)
{
byte *buffer;
int *bufferLength;
if (!sock->driverdata)
return -1;
bufferLength = &((qsocket_t *)sock->driverdata)->receiveMessageLength;
if ((*bufferLength + data->cursize + 4) > NET_MAXMESSAGE)
Sys_Error("Loop_SendMessage: overflow\n");
buffer = ((qsocket_t *)sock->driverdata)->receiveMessage + *bufferLength;
// message type
*buffer++ = 1;
// length
*buffer++ = data->cursize & 0xff;
*buffer++ = data->cursize >> 8;
// align
buffer++;
// message
Q_memcpy(buffer, data->data, data->cursize);
*bufferLength = IntAlign(*bufferLength + data->cursize + 4);
sock->canSend = false;
return 1;
}
int Loop_SendUnreliableMessage (qsocket_t *sock, sizebuf_t *data)
{
byte *buffer;
int *bufferLength;
if (!sock->driverdata)
return -1;
bufferLength = &((qsocket_t *)sock->driverdata)->receiveMessageLength;
if ((*bufferLength + data->cursize + sizeof(byte) + sizeof(short)) > NET_MAXMESSAGE)
return 0;
buffer = ((qsocket_t *)sock->driverdata)->receiveMessage + *bufferLength;
// message type
*buffer++ = 2;
// length
*buffer++ = data->cursize & 0xff;
*buffer++ = data->cursize >> 8;
// align
buffer++;
// message
Q_memcpy(buffer, data->data, data->cursize);
*bufferLength = IntAlign(*bufferLength + data->cursize + 4);
return 1;
}
qboolean Loop_CanSendMessage (qsocket_t *sock)
{
if (!sock->driverdata)
return false;
return sock->canSend;
}
qboolean Loop_CanSendUnreliableMessage (qsocket_t *sock)
{
return true;
}
void Loop_Close (qsocket_t *sock)
{
if (sock->driverdata)
((qsocket_t *)sock->driverdata)->driverdata = NULL;
sock->receiveMessageLength = 0;
sock->sendMessageLength = 0;
sock->canSend = true;
if (sock == loop_client)
loop_client = NULL;
else
loop_server = NULL;
}
Jump to Line
Something went wrong with that request. Please try again.