freertos_semaphore.hpp

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#ifndef ELEC_C7222_UTILS_FREERTOS_SEMAPHORE_HPP
#define ELEC_C7222_UTILS_FREERTOS_SEMAPHORE_HPP
 
#include <cstdint>
 
#include "non_copyable.hpp"
 
namespace c7222 {
 
class FreeRtosBinarySemaphore : public NonCopyableNonMovable {
  public:
    FreeRtosBinarySemaphore() = default;
    explicit FreeRtosBinarySemaphore(bool initially_given);
    bool Initialize(bool initially_given = false);
    ~FreeRtosBinarySemaphore();
 
    bool Take(std::uint32_t ticks_to_wait = 0);
    bool Give();
    bool GiveFromISR();
    bool IsValid() const;
 
  private:
    void* handle_{nullptr};
};
 
class FreeRtosCountingSemaphore : public NonCopyableNonMovable {
  public:
    FreeRtosCountingSemaphore() = default;
    FreeRtosCountingSemaphore(std::uint32_t max_count, std::uint32_t initial_count);
    bool Initialize(std::uint32_t max_count, std::uint32_t initial_count);
    ~FreeRtosCountingSemaphore();
 
    bool Take(std::uint32_t ticks_to_wait = 0);
    bool Give();
    bool GiveFromISR();
    std::uint32_t GetCount() const;
    bool IsValid() const;
 
  private:
    void* handle_{nullptr};
};
 
} // namespace c7222
 
#endif // ELEC_C7222_UTILS_FREERTOS_SEMAPHORE_HPP