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44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
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// Copyright (c) 2011 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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// This file contains the implementation for TaskRunner::PostTaskAndReply.
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#ifndef BASE_THREADING_POST_TASK_AND_REPLY_IMPL_H_
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#define BASE_THREADING_POST_TASK_AND_REPLY_IMPL_H_
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#include "base/base_export.h"
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#include "base/callback.h"
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#include "base/location.h"
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namespace base {
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namespace internal {
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// Inherit from this in a class that implements PostTask to send a task to a
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// custom execution context.
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//
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// If you're looking for a concrete implementation of PostTaskAndReply, you
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// probably want base::TaskRunner.
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//
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// TODO(fdoray): Move this to the anonymous namespace of base/task_runner.cc.
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class BASE_EXPORT PostTaskAndReplyImpl {
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public:
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virtual ~PostTaskAndReplyImpl() = default;
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// Posts |task| by calling PostTask(). On completion, |reply| is posted to the
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// sequence or thread that called this. Can only be called when
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// SequencedTaskRunnerHandle::IsSet(). Both |task| and |reply| are guaranteed
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// to be deleted on the sequence or thread that called this.
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bool PostTaskAndReply(const Location& from_here,
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OnceClosure task,
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OnceClosure reply);
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private:
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virtual bool PostTask(const Location& from_here, OnceClosure task) = 0;
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};
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} // namespace internal
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} // namespace base
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#endif // BASE_THREADING_POST_TASK_AND_REPLY_IMPL_H_
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