sitara_depot/components/free_rtos/semaphore/semaphore.hpp

#ifndef SRC_APP_SEMAPHORE_SEMAPHORE_HPP_
#define SRC_APP_SEMAPHORE_SEMAPHORE_HPP_

#include <kernel/dpl/SemaphoreP.h>
#include <kernel/dpl/DebugP.h>

namespace free_rtos {

/**
 * @brief Ñ++ îáåðòêà ñåìàôîðà â free rtos
 * 
 */
class Semaphore {
public:
    enum Type {
        e_semTypeBinary,
        e_semTypeCounting
    };

    Semaphore() {
        int32_t status = SystemP_FAILURE;
        status = SemaphoreP_constructBinary(&sem_, 0);
        DebugP_assert(SystemP_SUCCESS == status);
    }

    Semaphore(Semaphore::Type type, uint32_t init_val, uint32_t max_val) {
        int32_t status = SystemP_FAILURE;

        if (type == Semaphore::e_semTypeBinary) {
            status = SemaphoreP_constructBinary(&sem_, init_val);
        }
        else if (type == Semaphore::e_semTypeCounting) {
            status = SemaphoreP_constructCounting(&sem_, init_val, max_val);
        }

        DebugP_assert(SystemP_SUCCESS == status);
    }

    void post() {
        SemaphoreP_post(&sem_);
    }

    int32_t pend(uint32_t ticks = SystemP_WAIT_FOREVER) {
        return SemaphoreP_pend(&sem_, ticks);
    }

    ~Semaphore() {
        SemaphoreP_destruct(&sem_);
    }

private:
    SemaphoreP_Object sem_;
};

}

#endif