ardupilot/libraries/AP_HAL/Semaphores.h

13 lines
292 B
C++

#pragma once
#include "AP_HAL_Namespace.h"
#define HAL_SEMAPHORE_BLOCK_FOREVER ((uint32_t) 0xFFFFFFFF)
class AP_HAL::Semaphore {
public:
virtual bool take(uint32_t timeout_ms) WARN_IF_UNUSED = 0 ;
virtual bool take_nonblocking() WARN_IF_UNUSED = 0;
virtual bool give() = 0;
};