| // 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. |
| |
| #include "extensions/browser/extension_file_task_runner.h" |
| |
| #include "base/sequenced_task_runner.h" |
| #include "base/task_scheduler/lazy_task_runner.h" |
| #include "base/task_scheduler/task_traits.h" |
| |
| namespace extensions { |
| |
| namespace { |
| |
| // Note: All tasks posted to a single task runner have the same priority. This |
| // is unfortunate, since some file-related tasks are high priority (like serving |
| // a file from the extension protocols or loading an extension in response to a |
| // user action), and others are low priority (like garbage collection). Split |
| // the difference and use USER_VISIBLE, which is the default priority and what a |
| // task posted to a named thread (like the FILE thread) would receive. |
| base::LazySequencedTaskRunner g_task_runner = |
| LAZY_SEQUENCED_TASK_RUNNER_INITIALIZER( |
| base::TaskTraits(base::MayBlock(), |
| base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN, |
| base::TaskPriority::USER_VISIBLE)); |
| |
| } // namespace |
| |
| scoped_refptr<base::SequencedTaskRunner> GetExtensionFileTaskRunner() { |
| return g_task_runner.Get(); |
| } |
| |
| } // namespace extensions |
