ardupilot/libraries/AP_HAL_Linux/Semaphores.h

25 lines
513 B
C++

#ifndef __AP_HAL_LINUX_SEMAPHORE_H__
#define __AP_HAL_LINUX_SEMAPHORE_H__
#include <AP_HAL/AP_HAL_Boards.h>
#if CONFIG_HAL_BOARD == HAL_BOARD_LINUX
#include "AP_HAL_Linux.h"
#include <pthread.h>
class Linux::Semaphore : public AP_HAL::Semaphore {
public:
Semaphore() {
pthread_mutex_init(&_lock, NULL);
}
bool give();
bool take(uint32_t timeout_ms);
bool take_nonblocking();
private:
pthread_mutex_t _lock;
};
#endif // CONFIG_HAL_BOARD
#endif // __AP_HAL_LINUX_SEMAPHORE_H__