1 /*
2  *  Copyright 2019 The WebRTC Project Authors. All rights reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 #ifndef API_TASK_QUEUE_TASK_QUEUE_FACTORY_H_
11 #define API_TASK_QUEUE_TASK_QUEUE_FACTORY_H_
12 
13 #include <memory>
14 
15 #include "absl/strings/string_view.h"
16 #include "api/task_queue/task_queue_base.h"
17 
18 namespace webrtc {
19 
20 // The implementation of this interface must be thread-safe.
21 class TaskQueueFactory {
22  public:
23   // TaskQueue priority levels. On some platforms these will map to thread
24   // priorities, on others such as Mac and iOS, GCD queue priorities.
25   enum class Priority { NORMAL = 0, HIGH, LOW };
26 
27   virtual ~TaskQueueFactory() = default;
28   virtual std::unique_ptr<TaskQueueBase, TaskQueueDeleter> CreateTaskQueue(
29       absl::string_view name,
30       Priority priority) const = 0;
31 };
32 
33 }  // namespace webrtc
34 
35 #endif  // API_TASK_QUEUE_TASK_QUEUE_FACTORY_H_
36