34 lines
1.1 KiB
C++
34 lines
1.1 KiB
C++
// Copyright 2013 The Chromium 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 MOJO_EDK_SYSTEM_AWAKABLE_H_
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#define MOJO_EDK_SYSTEM_AWAKABLE_H_
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#include <stdint.h>
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#include "mojo/edk/system/system_impl_export.h"
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#include "mojo/public/c/system/types.h"
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namespace mojo {
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namespace edk {
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// An interface that may be waited on |AwakableList|.
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class MOJO_SYSTEM_IMPL_EXPORT Awakable {
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public:
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// |Awake()| must satisfy the following contract:
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// * As this is called from any thread, this must be thread-safe.
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// * As this is called inside a lock, this must not call anything that takes
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// "non-terminal" locks, i.e., those which are always safe to take.
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// This should return false if this must not be called again for the same
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// reason (e.g., for the same call to |AwakableList::Add()|).
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virtual bool Awake(MojoResult result, uintptr_t context) = 0;
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protected:
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Awakable() {}
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};
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} // namespace edk
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} // namespace mojo
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#endif // MOJO_EDK_SYSTEM_AWAKABLE_H_
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