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Diffstat (limited to '')
-rw-r--r-- | security/sandbox/chromium/base/single_thread_task_runner.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/security/sandbox/chromium/base/single_thread_task_runner.h b/security/sandbox/chromium/base/single_thread_task_runner.h new file mode 100644 index 0000000000..4d6938ed6c --- /dev/null +++ b/security/sandbox/chromium/base/single_thread_task_runner.h @@ -0,0 +1,36 @@ +// Copyright (c) 2012 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef BASE_SINGLE_THREAD_TASK_RUNNER_H_ +#define BASE_SINGLE_THREAD_TASK_RUNNER_H_ + +#include "base/base_export.h" +#include "base/sequenced_task_runner.h" + +namespace base { + +// A SingleThreadTaskRunner is a SequencedTaskRunner with one more +// guarantee; namely, that all tasks are run on a single dedicated +// thread. Most use cases require only a SequencedTaskRunner, unless +// there is a specific need to run tasks on only a single thread. +// +// SingleThreadTaskRunner implementations might: +// - Post tasks to an existing thread's MessageLoop (see +// MessageLoop::task_runner()). +// - Create their own worker thread and MessageLoop to post tasks to. +// - Add tasks to a FIFO and signal to a non-MessageLoop thread for them to +// be processed. This allows TaskRunner-oriented code run on threads +// running other kinds of message loop, e.g. Jingle threads. +class BASE_EXPORT SingleThreadTaskRunner : public SequencedTaskRunner { + public: + // A more explicit alias to RunsTasksInCurrentSequence(). + bool BelongsToCurrentThread() const { return RunsTasksInCurrentSequence(); } + + protected: + ~SingleThreadTaskRunner() override = default; +}; + +} // namespace base + +#endif // BASE_SINGLE_THREAD_TASK_RUNNER_H_ |