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-
- #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
-