53 lines
1.0 KiB
C++
53 lines
1.0 KiB
C++
#pragma once
|
|
|
|
#include "CoreTypes.h"
|
|
#include "Thread.h"
|
|
|
|
#ifdef ESP_PLATFORM
|
|
#include "freertos/FreeRTOS.h"
|
|
#include "freertos/semphr.h"
|
|
#else
|
|
#include "FreeRTOS.h"
|
|
#include "semphr.h"
|
|
#endif
|
|
|
|
namespace tt {
|
|
|
|
/**
|
|
* Wrapper for xSemaphoreCreateBinary (max count == 1) and xSemaphoreCreateCounting (max count > 1)
|
|
* Can be used in IRQ mode (within ISR context)
|
|
*/
|
|
class Semaphore {
|
|
private:
|
|
SemaphoreHandle_t handle;
|
|
public:
|
|
/**
|
|
* @param[in] maxCount The maximum count
|
|
* @param[in] initialCount The initial count
|
|
*/
|
|
Semaphore(uint32_t maxCount, uint32_t initialCount);
|
|
|
|
/**
|
|
* @param instance The pointer to Semaphore instance
|
|
*/
|
|
~Semaphore();
|
|
|
|
/** Acquire semaphore
|
|
* @param[in] timeout The timeout
|
|
* @return the status
|
|
*/
|
|
TtStatus acquire(uint32_t timeout) const;
|
|
|
|
/** Release semaphore
|
|
* @return the status
|
|
*/
|
|
TtStatus release() const;
|
|
|
|
/** Get semaphore count
|
|
* @return semaphore count
|
|
*/
|
|
uint32_t getCount() const;
|
|
};
|
|
|
|
} // namespace
|