RTCCallbackLogger.h

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/*

 *  Copyright 2018 The WebRTC project authors. All Rights Reserved.

 *  Use of this source code is governed by a BSD-style license

 *  that can be found in the LICENSE file in the root of the source

 *  tree. An additional intellectual property rights grant can be found

 *  in the file PATENTS.  All contributing project authors may

 *  be found in the AUTHORS file in the root of the source tree.

*/

#import <Foundation/Foundation.h>

#import "RTCLogging.h"

#import "RTCMacros.h"

NS_ASSUME_NONNULL_BEGIN

typedef void (^RTCCallbackLoggerMessageHandler)(NSString *message);

typedef void (^RTCCallbackLoggerMessageAndSeverityHandler)(NSString *message,

                                                           RTCLoggingSeverity severity);

// This class intercepts WebRTC logs and forwards them to a registered block.

// This class is not threadsafe.

RTC_OBJC_EXPORT

@interface RTC_OBJC_TYPE (RTCCallbackLogger) : NSObject

// The severity level to capture. The default is kRTCLoggingSeverityInfo.

@property(nonatomic, assign) RTCLoggingSeverity severity;

// The callback handler will be called on the same thread that does the

// logging, so if the logging callback can be slow it may be a good idea

// to implement dispatching to some other queue.

- (void)start:(nullable RTCCallbackLoggerMessageHandler)handler;

- (void)startWithMessageAndSeverityHandler:

    (nullable RTCCallbackLoggerMessageAndSeverityHandler)handler;

- (void)stop;

@end

NS_ASSUME_NONNULL_END