// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "msd_img_semaphore.h"

std::unique_ptr<MsdImgSemaphore>
MsdImgSemaphore::Import(uint32_t handle)
{
	auto platform_semaphore = magma::PlatformSemaphore::Import(handle);
	if (!platform_semaphore)
		return DRETP(nullptr, "MsdImgSemaphore::Create: Could not create platform semaphore from token");

	return std::make_unique<MsdImgSemaphore>(std::move(platform_semaphore));
}

std::unique_ptr<MsdImgSemaphore>
MsdImgSemaphore::Create()
{
	auto platform_semaphore = magma::PlatformSemaphore::Create();
	if (!platform_semaphore)
		return DRETP(nullptr, "MsdImgSemaphore::Create: Could not create platform semaphore");

	return std::make_unique<MsdImgSemaphore>(std::move(platform_semaphore));
}

MsdImgSemaphore::MsdImgSemaphore(std::unique_ptr<magma::PlatformSemaphore> platform_semaphore)
	     : platform_semaphore_(std::move(platform_semaphore))
{
}

MsdImgSemaphore::~MsdImgSemaphore() = default;

//////////////////////////////////////////////////////////////////////////////

magma_status_t
msd_semaphore_import(uint32_t handle, msd_semaphore_t** semaphore_out)
{
	auto semaphore = MsdImgSemaphore::Import(handle);
	if (!semaphore)
	{
		return DRET(MAGMA_STATUS_INVALID_ARGS);
	}
	*semaphore_out = new MsdImgAbiSemaphore(std::move(semaphore));
	return MAGMA_STATUS_OK;
}

void
msd_semaphore_release(msd_semaphore_t* semaphore)
{
	delete MsdImgAbiSemaphore::cast(semaphore);
}