Class SemaphoreRef

include/OpenImageDenoise/oidn.hpp:360–434

Semaphore object with automatic reference counting

  // Semaphore object with automatic reference counting
  class SemaphoreRef
  {
  public:
    SemaphoreRef() : handle(nullptr) {}
    SemaphoreRef(OIDNSemaphore handle) : handle(handle) {}

    SemaphoreRef(const SemaphoreRef& other) : handle(other.handle)
    {
      if (handle)
        oidnRetainSemaphore(handle);
    }

    SemaphoreRef(SemaphoreRef&& other) noexcept : handle(other.handle)
    {
      other.handle = nullptr;
    }

    SemaphoreRef& operator =(const SemaphoreRef& other)
    {
      if (&other != this)
      {
        if (other.handle)
          oidnRetainSemaphore(other.handle);
        if (handle)
          oidnReleaseSemaphore(handle);
        handle = other.handle;
      }
      return *this;
    }

    SemaphoreRef& operator =(SemaphoreRef&& other) noexcept
    {
      std::swap(handle, other.handle);
      return *this;
    }

    SemaphoreRef& operator =(OIDNSemaphore other)
    {
      if (other)
        oidnRetainSemaphore(other);
      if (handle)
        oidnReleaseSemaphore(handle);
      handle = other;
      return *this;
    }

    ~SemaphoreRef()
    {
      if (handle)
        oidnReleaseSemaphore(handle);
    }

    const OIDNSemaphore& getHandle() const
    {
      return handle;
    }

    operator bool() const