51 lines
1.4 KiB
51 lines
1.4 KiB
// Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <ThreadPool.h>
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#include <cuda.h>
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#include <cuda_runtime.h>
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#include <functional>
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#include <future> // NOLINT
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#include <memory>
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#include <mutex> // NOLINT
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#include "paddle/fluid/platform/enforce.h"
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namespace paddle {
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namespace platform {
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// NOTE(zjl): clean StreamCallbackManager to make compilation faster
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// Make StreamCallbackManager thread-safe
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class StreamCallbackManager {
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public:
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explicit StreamCallbackManager(const cudaStream_t stream);
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~StreamCallbackManager() = default;
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void AddCallback(std::function<void()> callback) const;
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void Wait() const;
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private:
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const cudaStream_t stream_;
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mutable ::ThreadPool thread_pool_;
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mutable std::mutex mtx_;
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mutable std::future<void> last_future_;
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};
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} // namespace platform
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} // namespace paddle
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