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// Copyright 2019 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef VK_SEMAPHORE_EXTERNAL_NONE_H_
#define VK_SEMAPHORE_EXTERNAL_NONE_H_
namespace vk {
// Empty external sempahore implementation.
class Semaphore::External
{
public:
// The type of external semaphore handle types supported by this implementation.
static const VkExternalSemaphoreHandleTypeFlags kExternalSemaphoreHandleType = 0;
void init() {}
void wait() {}
bool tryWait() { return true; }
void signal() {}
private:
int dummy;
};
} // namespace vk
#endif // VK_SEMAPHORE_EXTERNAL_NONE_H_