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e356dbca2c
When flutter/synchronization was first authored, we did not own fml (it was called fxl then). Now we do, so use a single spot for such utilities. The pipeline was meant to be a general purpose utility that was only ever used by the animator (it even has animator specific tracing), so move that to shell instead (where the animator resides).
39 lines
747 B
C++
39 lines
747 B
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef FLUTTER_FML_SYNCHRONIZATION_SEMAPHORE_H_
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#define FLUTTER_FML_SYNCHRONIZATION_SEMAPHORE_H_
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#include <memory>
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#include "flutter/fml/compiler_specific.h"
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#include "flutter/fml/macros.h"
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namespace fml {
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class PlatformSemaphore;
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class Semaphore {
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public:
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explicit Semaphore(uint32_t count);
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~Semaphore();
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bool IsValid() const;
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FML_WARN_UNUSED_RESULT
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bool TryWait();
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void Signal();
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private:
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std::unique_ptr<PlatformSemaphore> _impl;
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FML_DISALLOW_COPY_AND_ASSIGN(Semaphore);
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};
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} // namespace fml
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#endif // FLUTTER_FML_SYNCHRONIZATION_SEMAPHORE_H_
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