177 lines
2.7 KiB
C
177 lines
2.7 KiB
C
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#include "cmdlib.h"
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#include "threads.h"
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#include "mutex.h"
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/*
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===================================================================
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WIN32
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===================================================================
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*/
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#ifdef WIN32
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#define USED
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#include <windows.h>
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void MutexLock (mutex_t *m)
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{
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CRITICAL_SECTION *crit;
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if (!m)
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return;
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crit = (CRITICAL_SECTION *) m;
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EnterCriticalSection (crit);
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}
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void MutexUnlock (mutex_t *m)
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{
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CRITICAL_SECTION *crit;
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if (!m)
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return;
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crit = (CRITICAL_SECTION *) m;
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LeaveCriticalSection (crit);
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}
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mutex_t *MutexAlloc(void)
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{
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CRITICAL_SECTION *crit;
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if (numthreads == 1)
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return NULL;
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crit = (CRITICAL_SECTION *) malloc(sizeof(CRITICAL_SECTION));
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InitializeCriticalSection (crit);
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return (void *) crit;
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}
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#endif
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/*
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===================================================================
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OSF1
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===================================================================
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*/
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#ifdef __osf__
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#define USED
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#include <pthread.h>
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void MutexLock (mutex_t *m)
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{
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pthread_mutex_t *my_mutex;
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if (!m)
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return;
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my_mutex = (pthread_mutex_t *) m;
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pthread_mutex_lock (my_mutex);
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}
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void MutexUnlock (mutex_t *m)
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{
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pthread_mutex_t *my_mutex;
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if (!m)
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return;
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my_mutex = (pthread_mutex_t *) m;
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pthread_mutex_unlock (my_mutex);
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}
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mutex_t *MutexAlloc(void)
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{
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pthread_mutex_t *my_mutex;
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pthread_mutexattr_t mattrib;
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if (numthreads == 1)
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return NULL;
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my_mutex = malloc (sizeof(*my_mutex));
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if (pthread_mutexattr_create (&mattrib) == -1)
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Error ("pthread_mutex_attr_create failed");
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if (pthread_mutexattr_setkind_np (&mattrib, MUTEX_FAST_NP) == -1)
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Error ("pthread_mutexattr_setkind_np failed");
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if (pthread_mutex_init (my_mutex, mattrib) == -1)
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Error ("pthread_mutex_init failed");
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return (void *) my_mutex;
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}
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#endif
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/*
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===================================================================
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IRIX
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===================================================================
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*/
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#ifdef _MIPS_ISA
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#define USED
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#include <task.h>
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#include <abi_mutex.h>
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#include <sys/types.h>
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#include <sys/prctl.h>
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void MutexLock (mutex_t *m)
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{
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abilock_t *lck;
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if (!m)
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return;
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lck = (abilock_t *) m;
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spin_lock (lck);
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}
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void MutexUnlock (mutex_t *m)
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{
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abilock_t *lck;
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if (!m)
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return;
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lck = (abilock_t *) m;
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release_lock (lck);
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}
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mutex_t *MutexAlloc(void)
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{
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abilock_t *lck;
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if (numthreads == 1)
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return NULL;
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lck = (abilock_t *) malloc(sizeof(abilock_t));
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init_lock (lck);
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return (void *) lck;
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}
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#endif
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/*
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=======================================================================
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SINGLE THREAD
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=======================================================================
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*/
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#ifndef USED
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void MutexLock (mutex_t *m)
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{
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}
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void MutexUnlock (mutex_t *m)
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{
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}
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mutex_t *MutexAlloc(void)
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{
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return NULL;
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}
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#endif
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