src/dawn/native/vulkan/external_semaphore/SemaphoreServiceImplementation.h

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#ifndef SRC_DAWN_NATIVE_VULKAN_EXTERNAL_SEMAPHORE_SEMAPHORESERVICEIMPLEMENTATION_H_
#define SRC_DAWN_NATIVE_VULKAN_EXTERNAL_SEMAPHORE_SEMAPHORESERVICEIMPLEMENTATION_H_

#include "dawn/native/Error.h"
#include "dawn/native/vulkan/ExternalHandle.h"
#include "partition_alloc/pointers/raw_ptr.h"

namespace dawn::native::vulkan {
class Device;
}  // namespace dawn::native::vulkan

namespace dawn::native::vulkan::external_semaphore {

class ServiceImplementation {
  public:
    explicit ServiceImplementation(Device* device);
    virtual ~ServiceImplementation();

    // True if the device reports it supports this feature
    virtual bool Supported() = 0;

    // Given an external handle, import it into a VkSemaphore
    virtual ResultOrError<VkSemaphore> ImportSemaphore(ExternalSemaphoreHandle handle) = 0;

    // Create a VkSemaphore that is exportable into an external handle later
    virtual ResultOrError<VkSemaphore> CreateExportableSemaphore() = 0;

    // Export a VkSemaphore into an external handle
    virtual ResultOrError<ExternalSemaphoreHandle> ExportSemaphore(VkSemaphore semaphore) = 0;

    // Duplicate a new external handle from the given one.
    virtual ExternalSemaphoreHandle DuplicateHandle(ExternalSemaphoreHandle handle) = 0;

    // Close external handle to release it.
    virtual void CloseHandle(ExternalSemaphoreHandle handle) = 0;

  protected:
    raw_ptr<Device> mDevice = nullptr;
};

}  // namespace dawn::native::vulkan::external_semaphore

#endif  // SRC_DAWN_NATIVE_VULKAN_EXTERNAL_SEMAPHORE_SEMAPHORESERVICEIMPLEMENTATION_H_