Index: base/task_scheduler/utils.cc |
diff --git a/base/task_scheduler/utils.cc b/base/task_scheduler/utils.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3e8741aae256663a7205f60a3520c95e274e4bac |
--- /dev/null |
+++ b/base/task_scheduler/utils.cc |
@@ -0,0 +1,65 @@ |
+// Copyright 2016 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. |
+ |
+#include "base/task_scheduler/utils.h" |
+ |
+#include <utility> |
+ |
+#include "base/debug/task_annotator.h" |
+#include "base/task_scheduler/delayed_task_manager.h" |
+#include "base/task_scheduler/priority_queue.h" |
+#include "base/task_scheduler/shutdown_manager.h" |
+ |
+namespace base { |
+namespace task_scheduler { |
+ |
+const char kQueueFunctionName[] = "task_scheduler::PostTask"; |
+ |
+void PostTaskHelper(const Task& task, |
+ scoped_refptr<Sequence> sequence, |
+ PriorityQueue* priority_queue, |
+ ShutdownManager* shutdown_manager, |
+ DelayedTaskManager* delayed_task_manager) { |
+ DCHECK(!task.task.is_null()); |
+ DCHECK(sequence.get()); |
+ DCHECK(priority_queue); |
+ DCHECK(shutdown_manager); |
+ DCHECK(delayed_task_manager); |
+ |
+ debug::TaskAnnotator task_annotator; |
+ task_annotator.DidQueueTask(kQueueFunctionName, task); |
+ |
+ if (task.delayed_run_time.is_null()) |
+ PostTaskNowHelper(task, sequence, priority_queue, shutdown_manager); |
+ else |
+ delayed_task_manager->AddDelayedTask(task, sequence, priority_queue); |
+} |
+ |
+void PostTaskNowHelper(const Task& task, |
+ scoped_refptr<Sequence> sequence, |
+ PriorityQueue* priority_queue, |
+ ShutdownManager* shutdown_manager) { |
+ DCHECK(!task.task.is_null()); |
+ DCHECK(sequence.get()); |
+ DCHECK(priority_queue); |
+ DCHECK(shutdown_manager); |
+ |
+ if (!shutdown_manager->ShouldPostTask(task.traits.shutdown_behavior())) |
+ return; |
+ |
+ size_t prev_num_tasks; |
+ sequence->PushTask(make_scoped_ptr(new Task(task)), &prev_num_tasks); |
+ |
+ if (prev_num_tasks == 0) { |
+ // Get the sequence sort key before creating the transaction. This ensures |
+ // that the sequence's lock is not held at the same time as the priority |
+ // queue's lock. |
+ SequenceSortKey sequence_sort_key = sequence->GetSortKey(); |
+ priority_queue->BeginTransaction()->PushSequence(sequence, |
+ sequence_sort_key); |
+ } |
+} |
+ |
+} // namespace task_scheduler |
+} // namespace base |