Index: base/task_scheduler/environment_config.h |
diff --git a/base/task_scheduler/environment_config.h b/base/task_scheduler/environment_config.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..63bb472263bad99667c75d29da381076ff24152e |
--- /dev/null |
+++ b/base/task_scheduler/environment_config.h |
@@ -0,0 +1,45 @@ |
+// Copyright 2017 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_TASK_SCHEDULER_ENVIRONMENT_CONFIG_H_ |
+#define BASE_TASK_SCHEDULER_ENVIRONMENT_CONFIG_H_ |
+ |
+#include <stddef.h> |
+ |
+#include "base/task_scheduler/task_traits.h" |
+#include "base/threading/thread.h" |
+ |
+namespace base { |
+namespace internal { |
+ |
+enum EnvironmentType { |
+ BACKGROUND = 0, |
+ BACKGROUND_BLOCKING, |
+ FOREGROUND, |
+ FOREGROUND_BLOCKING, |
+ ENVIRONMENT_COUNT // Always last. |
+}; |
+ |
+// Order must match the EnvironmentType enum. |
+constexpr struct { |
+ // The threads and histograms of this environment will be labeled with |
+ // the task scheduler name concatenated to this. |
+ const char* name_suffix; |
+ |
+ // Preferred priority for threads in this environment; the actual thread |
+ // priority depends on shutdown state and platform capabilities. |
+ ThreadPriority priority_hint; |
+} kEnvironmentParams[] = { |
+ {"Background", base::ThreadPriority::BACKGROUND}, |
+ {"BackgroundBlocking", base::ThreadPriority::BACKGROUND}, |
+ {"Foreground", base::ThreadPriority::NORMAL}, |
+ {"ForegroundBlocking", base::ThreadPriority::NORMAL}, |
+}; |
+ |
+size_t GetEnvironmentIndexForTraits(const TaskTraits& traits); |
+ |
+} // namespace internal |
+} // namespace base |
+ |
+#endif // BASE_TASK_SCHEDULER_ENVIRONMENT_CONFIG_H_ |