pcem/src/wx-thread.c
2017-12-11 16:32:48 +00:00

180 lines
3.7 KiB
C

#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include "thread.h"
#if defined WIN32 || defined _WIN32 || defined _WIN32
#include <windows.h>
#include <process.h>
void *thread_create(void (*thread_rout)(void *param), void *param)
{
return (void *)_beginthread(thread_rout, 0, param);
}
void thread_kill(void *handle)
{
TerminateThread(handle, 0);
}
void thread_sleep(int t)
{
Sleep(t);
}
typedef struct win_event_t
{
HANDLE handle;
} win_event_t;
event_t *thread_create_event()
{
win_event_t *event = malloc(sizeof(win_event_t));
event->handle = CreateEvent(NULL, FALSE, FALSE, NULL);
return (event_t *)event;
}
void thread_set_event(event_t *_event)
{
win_event_t *event = (win_event_t *)_event;
SetEvent(event->handle);
}
void thread_reset_event(event_t *_event)
{
win_event_t *event = (win_event_t *)_event;
ResetEvent(event->handle);
}
int thread_wait_event(event_t *_event, int timeout)
{
win_event_t *event = (win_event_t *)_event;
if (timeout == -1)
timeout = INFINITE;
if (WaitForSingleObject(event->handle, timeout))
return 1;
return 0;
}
void thread_destroy_event(event_t *_event)
{
win_event_t *event = (win_event_t *)_event;
CloseHandle(event->handle);
free(event);
}
#else
#include <pthread.h>
#include <unistd.h>
typedef struct event_pthread_t
{
pthread_cond_t cond;
pthread_mutex_t mutex;
int state;
} event_pthread_t;
thread_t *thread_create(void (*thread_rout)(void *param), void *param)
{
pthread_t *thread = malloc(sizeof(pthread_t));
pthread_create(thread, NULL, (void*)thread_rout, param);
return thread;
}
void thread_kill(thread_t *handle)
{
pthread_t *thread = (pthread_t *)handle;
pthread_cancel(*thread);
pthread_join(*thread, NULL);
free(thread);
}
event_t *thread_create_event()
{
event_pthread_t *event = malloc(sizeof(event_pthread_t));
pthread_cond_init(&event->cond, NULL);
pthread_mutex_init(&event->mutex, NULL);
event->state = 0;
return (event_t *)event;
}
void thread_set_event(event_t *handle)
{
event_pthread_t *event = (event_pthread_t *)handle;
pthread_mutex_lock(&event->mutex);
event->state = 1;
pthread_cond_broadcast(&event->cond);
pthread_mutex_unlock(&event->mutex);
}
void thread_reset_event(event_t *handle)
{
event_pthread_t *event = (event_pthread_t *)handle;
pthread_mutex_lock(&event->mutex);
event->state = 0;
pthread_mutex_unlock(&event->mutex);
}
int thread_wait_event(event_t *handle, int timeout)
{
event_pthread_t *event = (event_pthread_t *)handle;
struct timespec abstime;
#ifdef __linux__
clock_gettime(CLOCK_REALTIME, &abstime);
#else
struct timeval now;
gettimeofday(&now, 0);
abstime.tv_sec = now.tv_sec;
abstime.tv_nsec = now.tv_usec*1000UL;
#endif
abstime.tv_nsec += (timeout % 1000) * 1000000;
abstime.tv_sec += (timeout / 1000);
if (abstime.tv_nsec > 1000000000)
{
abstime.tv_nsec -= 1000000000;
abstime.tv_sec++;
}
pthread_mutex_lock(&event->mutex);
if (timeout == -1)
{
while (!event->state)
pthread_cond_wait(&event->cond, &event->mutex);
}
else if (!event->state)
pthread_cond_timedwait(&event->cond, &event->mutex, &abstime);
pthread_mutex_unlock(&event->mutex);
return 0;
}
void thread_destroy_event(event_t *handle)
{
event_pthread_t *event = (event_pthread_t *)handle;
pthread_cond_destroy(&event->cond);
pthread_mutex_destroy(&event->mutex);
free(event);
}
void thread_sleep(int t)
{
usleep(t * 1000);
}
#endif