ardupilot/libraries/AP_HAL/Semaphores.h
Gustavo Jose de Sousa 98a772c323 AP_HAL: 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 20:42:34 +09:00

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C++

#ifndef __AP_HAL_SEMAPHORES_H__
#define __AP_HAL_SEMAPHORES_H__
#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;
};
#endif // __AP_HAL_SEMAPHORES_H__