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1 /* | |
2 * Copyright 2015 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 | |
11 #import <Foundation/Foundation.h> | |
12 | |
13 #import "webrtc/base/objc/RTCMacros.h" | |
14 | |
15 typedef NS_ENUM(NSInteger, RTCDispatcherQueueType) { | |
16 // Main dispatcher queue. | |
17 RTCDispatcherTypeMain, | |
18 // Used for starting/stopping AVCaptureSession, and assigning | |
19 // capture session to AVCaptureVideoPreviewLayer. | |
20 RTCDispatcherTypeCaptureSession, | |
21 // Used for operations on AVAudioSession. | |
22 RTCDispatcherTypeAudioSession, | |
23 }; | |
24 | |
25 /** Dispatcher that asynchronously dispatches blocks to a specific | |
26 * shared dispatch queue. | |
27 */ | |
28 RTC_EXPORT | |
29 @interface RTCDispatcher : NSObject | |
30 | |
31 - (instancetype)init NS_UNAVAILABLE; | |
32 | |
33 /** Dispatch the block asynchronously on the queue for dispatchType. | |
34 * @param dispatchType The queue type to dispatch on. | |
35 * @param block The block to dispatch asynchronously. | |
36 */ | |
37 + (void)dispatchAsyncOnType:(RTCDispatcherQueueType)dispatchType | |
38 block:(dispatch_block_t)block; | |
39 | |
40 @end | |
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