ardupilot/libraries/AP_HAL_Linux/Semaphores.h
Gustavo Jose de Sousa 7ac51f60d0 AP_HAL_Linux: standardize inclusion of libaries headers
This commit changes the way libraries headers are included in source files:

 - If the header is in the same directory the source belongs to, so the
 notation '#include ""' is used with the path relative to the directory
 containing the source.

 - If the header is outside the directory containing the source, then we use
 the notation '#include <>' with the path relative to libraries folder.

Some of the advantages of such approach:

 - Only one search path for libraries headers.

 - OSs like Windows may have a better lookup time.
2015-08-19 20:42:40 +09:00

25 lines
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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::LinuxSemaphore : public AP_HAL::Semaphore {
public:
LinuxSemaphore() {
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__