Index: base/threading/sequenced_task_runner_handle.h |
diff --git a/base/threading/sequenced_task_runner_handle.h b/base/threading/sequenced_task_runner_handle.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..d5bd7ded913858cca46f86fdbbf6a5b499392d82 |
--- /dev/null |
+++ b/base/threading/sequenced_task_runner_handle.h |
@@ -0,0 +1,33 @@ |
+// Copyright 2015 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_THREADING_SEQUENCED_TASK_RUNNER_HANDLE_H_ |
+#define BASE_THREADING_SEQUENCED_TASK_RUNNER_HANDLE_H_ |
+ |
+#include "base/compiler_specific.h" |
+#include "base/memory/ref_counted.h" |
+ |
+namespace base { |
+ |
+class SequencedTaskRunner; |
+ |
+class SequencedTaskRunnerHandle { |
+ public: |
+ // Returns a SequencedTaskRunner which guarantees that posted tasks will only |
+ // run after the current task is finished and will satisfy a SequenceChecker. |
+ // It will only return a non-null value if one of the following conditions is |
+ // fulfilled: |
+ // a) The current thread has a ThreadTaskRunnerHandle (which includes any |
+ // thread that has a MessageLoop associated with it), or |
+ // b) The current thread is a worker thread belonging to a SequencedWorkerPool |
+ // *and* is currently running a sequenced task. |
+ static scoped_refptr<SequencedTaskRunner> Get(); |
Sami
2015/10/23 15:47:33
Could this follow the same IsSet/Get contract of T
Bernhard Bauer
2015/10/23 16:20:25
Done.
|
+ |
+ private: |
+ DISALLOW_IMPLICIT_CONSTRUCTORS(SequencedTaskRunnerHandle); |
+}; |
+ |
+} // namespace base |
+ |
+#endif // BASE_THREADING_SEQUENCED_TASK_RUNNER_HANDLE_H_ |