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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code 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.
Quake III Arena source code 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 Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "cmdlib.h"
#include "threads.h"
#include "mutex.h"
/*
===================================================================
WIN32
===================================================================
*/
#ifdef WIN32
#define USED
#include <windows.h>
void MutexLock (mutex_t *m)
{
CRITICAL_SECTION *crit;
if (!m)
return;
crit = (CRITICAL_SECTION *) m;
EnterCriticalSection (crit);
}
void MutexUnlock (mutex_t *m)
{
CRITICAL_SECTION *crit;
if (!m)
return;
crit = (CRITICAL_SECTION *) m;
LeaveCriticalSection (crit);
}
mutex_t *MutexAlloc(void)
{
CRITICAL_SECTION *crit;
if (numthreads == 1)
return NULL;
crit = (CRITICAL_SECTION *) malloc(sizeof(CRITICAL_SECTION));
InitializeCriticalSection (crit);
return (void *) crit;
}
#endif
/*
===================================================================
OSF1
===================================================================
*/
#ifdef __osf__
#define USED
#include <pthread.h>
void MutexLock (mutex_t *m)
{
pthread_mutex_t *my_mutex;
if (!m)
return;
my_mutex = (pthread_mutex_t *) m;
pthread_mutex_lock (my_mutex);
}
void MutexUnlock (mutex_t *m)
{
pthread_mutex_t *my_mutex;
if (!m)
return;
my_mutex = (pthread_mutex_t *) m;
pthread_mutex_unlock (my_mutex);
}
mutex_t *MutexAlloc(void)
{
pthread_mutex_t *my_mutex;
pthread_mutexattr_t mattrib;
if (numthreads == 1)
return NULL;
my_mutex = malloc (sizeof(*my_mutex));
if (pthread_mutexattr_create (&mattrib) == -1)
Error ("pthread_mutex_attr_create failed");
if (pthread_mutexattr_setkind_np (&mattrib, MUTEX_FAST_NP) == -1)
Error ("pthread_mutexattr_setkind_np failed");
if (pthread_mutex_init (my_mutex, mattrib) == -1)
Error ("pthread_mutex_init failed");
return (void *) my_mutex;
}
#endif
/*
===================================================================
IRIX
===================================================================
*/
#ifdef _MIPS_ISA
#define USED
#include <task.h>
#include <abi_mutex.h>
#include <sys/types.h>
#include <sys/prctl.h>
void MutexLock (mutex_t *m)
{
abilock_t *lck;
if (!m)
return;
lck = (abilock_t *) m;
spin_lock (lck);
}
void MutexUnlock (mutex_t *m)
{
abilock_t *lck;
if (!m)
return;
lck = (abilock_t *) m;
release_lock (lck);
}
mutex_t *MutexAlloc(void)
{
abilock_t *lck;
if (numthreads == 1)
return NULL;
lck = (abilock_t *) malloc(sizeof(abilock_t));
init_lock (lck);
return (void *) lck;
}
#endif
/*
=======================================================================
SINGLE THREAD
=======================================================================
*/
#ifndef USED
void MutexLock (mutex_t *m)
{
}
void MutexUnlock (mutex_t *m)
{
}
mutex_t *MutexAlloc(void)
{
return NULL;
}
#endif
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