You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
97 lines
2.2 KiB
97 lines
2.2 KiB
/************************************************************/
|
|
#ifndef _MSC_VER
|
|
/************************************************************/
|
|
|
|
|
|
#include <pthread.h>
|
|
|
|
/* don't include <semaphore.h>, it is not available on OS/X */
|
|
|
|
typedef struct {
|
|
pthread_mutex_t mutex1;
|
|
pthread_cond_t cond1;
|
|
unsigned int value;
|
|
} sem_t;
|
|
|
|
static int sem_init(sem_t *sem, int pshared, unsigned int value)
|
|
{
|
|
assert(pshared == 0);
|
|
sem->value = value;
|
|
return (pthread_mutex_init(&sem->mutex1, NULL) ||
|
|
pthread_cond_init(&sem->cond1, NULL));
|
|
}
|
|
|
|
static int sem_post(sem_t *sem)
|
|
{
|
|
pthread_mutex_lock(&sem->mutex1);
|
|
sem->value += 1;
|
|
pthread_cond_signal(&sem->cond1);
|
|
pthread_mutex_unlock(&sem->mutex1);
|
|
return 0;
|
|
}
|
|
|
|
static int sem_wait(sem_t *sem)
|
|
{
|
|
pthread_mutex_lock(&sem->mutex1);
|
|
while (sem->value == 0)
|
|
pthread_cond_wait(&sem->cond1, &sem->mutex1);
|
|
sem->value -= 1;
|
|
pthread_mutex_unlock(&sem->mutex1);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/************************************************************/
|
|
#else
|
|
/************************************************************/
|
|
|
|
|
|
/* Very quick and dirty, just what I need for these tests.
|
|
Don't use directly in any real code!
|
|
*/
|
|
|
|
#include <Windows.h>
|
|
#include <assert.h>
|
|
|
|
typedef HANDLE sem_t;
|
|
typedef HANDLE pthread_t;
|
|
|
|
static int sem_init(sem_t *sem, int pshared, unsigned int value)
|
|
{
|
|
assert(pshared == 0);
|
|
assert(value == 0);
|
|
*sem = CreateSemaphore(NULL, 0, 999, NULL);
|
|
return *sem ? 0 : -1;
|
|
}
|
|
|
|
static int sem_post(sem_t *sem)
|
|
{
|
|
return ReleaseSemaphore(*sem, 1, NULL) ? 0 : -1;
|
|
}
|
|
|
|
static int sem_wait(sem_t *sem)
|
|
{
|
|
WaitForSingleObject(*sem, INFINITE);
|
|
return 0;
|
|
}
|
|
|
|
static DWORD WINAPI myThreadProc(LPVOID lpParameter)
|
|
{
|
|
void *(* start_routine)(void *) = (void *(*)(void *))lpParameter;
|
|
start_routine(NULL);
|
|
return 0;
|
|
}
|
|
|
|
static int pthread_create(pthread_t *thread, void *attr,
|
|
void *start_routine(void *), void *arg)
|
|
{
|
|
assert(arg == NULL);
|
|
*thread = CreateThread(NULL, 0, myThreadProc, start_routine, 0, NULL);
|
|
return *thread ? 0 : -1;
|
|
}
|
|
|
|
|
|
/************************************************************/
|
|
#endif
|
|
/************************************************************/
|