quakeforge/libs/net/nm/net_vcr.c

196 lines
3.7 KiB
C

/*
net_vcr.c
@description@
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
static __attribute__ ((used)) const char rcsid[] =
"$Id$";
#include "QF/msg.h"
#include "QF/sys.h"
#include "netmain.h"
#include "net_vcr.h"
#include "../nq/include/server.h"
// This is the playback portion of the VCR. It reads the file produced
// by the recorder and plays it back to the host. The recording contains
// everything necessary (events, timestamps, and data) to duplicate the game
// from the viewpoint of everything above the network layer.
static struct {
double time;
int op;
long session;
} next;
int
VCR_Init (void)
{
net_drivers[0].Init = VCR_Init;
net_drivers[0].SearchForHosts = VCR_SearchForHosts;
net_drivers[0].Connect = VCR_Connect;
net_drivers[0].CheckNewConnections = VCR_CheckNewConnections;
net_drivers[0].QGetMessage = VCR_GetMessage;
net_drivers[0].QSendMessage = VCR_SendMessage;
net_drivers[0].CanSendMessage = VCR_CanSendMessage;
net_drivers[0].Close = VCR_Close;
net_drivers[0].Shutdown = VCR_Shutdown;
Qread (vcrFile, &next, sizeof (next));
return 0;
}
static void
VCR_ReadNext (void)
{
if (Qread (vcrFile, &next, sizeof (next)) == 0) {
next.op = 255;
Sys_Error ("=== END OF PLAYBACK===");
}
if (next.op < 1 || next.op > VCR_MAX_MESSAGE)
Sys_Error ("VCR_ReadNext: bad op");
}
void
VCR_Listen (qboolean state)
{
}
void
VCR_Shutdown (void)
{
}
int
VCR_GetMessage (qsocket_t * sock)
{
int ret;
if (host_time != next.time || next.op != VCR_OP_GETMESSAGE
|| next.session != *(long *) (char *) (&sock->driverdata))
Sys_Error ("VCR missmatch");
Qread (vcrFile, &ret, sizeof (int));
if (ret != 1) {
VCR_ReadNext ();
return ret;
}
Qread (vcrFile, &net_message->message->cursize, sizeof (int));
Qread (vcrFile, net_message->message->data,
net_message->message->cursize);
VCR_ReadNext ();
return 1;
}
int
VCR_SendMessage (qsocket_t * sock, sizebuf_t *data)
{
int ret;
if (host_time != next.time || next.op != VCR_OP_SENDMESSAGE
|| next.session != *(long *) (char *) (&sock->driverdata))
Sys_Error ("VCR missmatch");
Qread (vcrFile, &ret, sizeof (int));
VCR_ReadNext ();
return ret;
}
qboolean
VCR_CanSendMessage (qsocket_t * sock)
{
qboolean ret;
if (host_time != next.time || next.op != VCR_OP_CANSENDMESSAGE
|| next.session != *(long *) (char *) (&sock->driverdata))
Sys_Error ("VCR missmatch");
Qread (vcrFile, &ret, sizeof (int));
VCR_ReadNext ();
return ret;
}
void
VCR_Close (qsocket_t * sock)
{
}
void
VCR_SearchForHosts (qboolean xmit)
{
}
qsocket_t *
VCR_Connect (const char *host)
{
return NULL;
}
qsocket_t *
VCR_CheckNewConnections (void)
{
qsocket_t *sock;
if (host_time != next.time || next.op != VCR_OP_CONNECT)
Sys_Error ("VCR missmatch");
if (!next.session) {
VCR_ReadNext ();
return NULL;
}
sock = NET_NewQSocket ();
*(long *) (char *) (&sock->driverdata) = next.session;
Qread (vcrFile, sock->address, NET_NAMELEN);
VCR_ReadNext ();
return sock;
}