ardupilot/libraries/AP_HAL/Semaphores.h
Pat Hickey 81d77d4a70 AP_HAL: New semaphore interface
* it now looks like a semaphore!
2013-01-03 13:48:07 -08:00

19 lines
357 B
C++

#ifndef __AP_HAL_SEMAPHORES_H__
#define __AP_HAL_SEMAPHORES_H__
#include <AP_HAL_Namespace.h>
#include <limits.h>
#define HAL_SEMAPHORE_BLOCK_FOREVER UINT32_MAX
class AP_HAL::Semaphore {
public:
virtual bool take(uint32_t timeout_ms) = 0;
virtual bool take_nonblocking() = 0;
virtual bool give() = 0;
};
#endif // __AP_HAL_SEMAPHORES_H__