webrtc/sdk/objc/api/logging/RTCCallbackLogger.mm
Anders Carlsson 7bca8ca4e2 Obj-C SDK Cleanup
This CL separates the files under sdk/objc into logical directories, replacing
the previous file layout under Framework/.

A long term goal is to have some system set up to generate the files under
sdk/objc/api (the PeerConnection API wrappers) from the C++ code. In the shorter
term the goal is to abstract out shared concepts from these classes in order to
make them as uniform as possible.

The separation into base/, components/, and helpers/ are to differentiate between
the base layer's common protocols, various utilities and the actual platform
specific components.

The old directory layout that resembled a framework's internal layout is not
necessary, since it is generated by the framework target when building it.

Bug: webrtc:9627
Change-Id: Ib084fd83f050ae980649ca99e841f4fb0580bd8f
Reviewed-on: https://webrtc-review.googlesource.com/94142
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Commit-Queue: Anders Carlsson <andersc@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24493}
2018-08-30 10:42:41 +00:00

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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 "RTCCallbackLogger.h"
#include <memory>
#include "rtc_base/checks.h"
#include "rtc_base/logging.h"
#include "rtc_base/logsinks.h"
class CallbackLogSink : public rtc::LogSink {
public:
CallbackLogSink(void (^callbackHandler)(NSString *message)) {
callback_handler_ = callbackHandler;
}
~CallbackLogSink() override { callback_handler_ = nil; }
void OnLogMessage(const std::string &message) override {
if (callback_handler_) {
callback_handler_([NSString stringWithUTF8String:message.c_str()]);
}
}
private:
void (^callback_handler_)(NSString *message);
};
@implementation RTCCallbackLogger {
BOOL _hasStarted;
std::unique_ptr<CallbackLogSink> _logSink;
}
@synthesize severity = _severity;
- (instancetype)init {
self = [super init];
if (self != nil) {
_severity = RTCLoggingSeverityInfo;
}
return self;
}
- (void)dealloc {
[self stop];
}
- (void)start:(nullable void (^)(NSString *))callback {
if (_hasStarted) {
return;
}
_logSink.reset(new CallbackLogSink(callback));
rtc::LogMessage::AddLogToStream(_logSink.get(), [self rtcSeverity]);
_hasStarted = YES;
}
- (void)stop {
if (!_hasStarted) {
return;
}
RTC_DCHECK(_logSink);
rtc::LogMessage::RemoveLogToStream(_logSink.get());
_hasStarted = NO;
_logSink.reset();
}
#pragma mark - Private
- (rtc::LoggingSeverity)rtcSeverity {
switch (_severity) {
case RTCLoggingSeverityVerbose:
return rtc::LS_VERBOSE;
case RTCLoggingSeverityInfo:
return rtc::LS_INFO;
case RTCLoggingSeverityWarning:
return rtc::LS_WARNING;
case RTCLoggingSeverityError:
return rtc::LS_ERROR;
}
}
@end