Move RTCFileLogger to webrtc/base/objc.

talk/app/webrtc/objc/RTCFileLogger.mm

-/*
- * libjingle
- * Copyright 2015 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  1. Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *  2. Redistributions in binary form must reproduce the above copyright notice,
- *     this list of conditions and the following disclaimer in the documentation
- *     and/or other materials provided with the distribution.
- *  3. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#import "RTCFileLogger.h"
-
-#include "webrtc/base/checks.h"
-#include "webrtc/base/filerotatingstream.h"
-#include "webrtc/base/logging.h"
-#include "webrtc/base/logsinks.h"
-#include "webrtc/base/scoped_ptr.h"
-
-NSString *const kDefaultLogDirName = @"webrtc_logs";
-NSUInteger const kDefaultMaxFileSize = 10 * 1024 * 1024; // 10MB.
-const char *kRTCFileLoggerRotatingLogPrefix = "rotating_log";
-
-@implementation RTCFileLogger {
-  BOOL _hasStarted;
-  NSString *_dirPath;
-  NSUInteger _maxFileSize;
-  rtc::scoped_ptr<rtc::FileRotatingLogSink> _logSink;
-}
-
-@synthesize severity = _severity;
-@synthesize rotationType = _rotationType;
-@synthesize shouldDisableBuffering = _shouldDisableBuffering;
-
-- (instancetype)init {
-  NSArray *paths = NSSearchPathForDirectoriesInDomains(
-      NSDocumentDirectory, NSUserDomainMask, YES);
-  NSString *documentsDirPath = [paths firstObject];
-  NSString *defaultDirPath =
-      [documentsDirPath stringByAppendingPathComponent:kDefaultLogDirName];
-  return [self initWithDirPath:defaultDirPath
-                   maxFileSize:kDefaultMaxFileSize];
-}
-
-- (instancetype)initWithDirPath:(NSString *)dirPath
-                    maxFileSize:(NSUInteger)maxFileSize {
-  return [self initWithDirPath:dirPath
-                   maxFileSize:maxFileSize
-                  rotationType:kRTCFileLoggerTypeCall];
-}
-
-- (instancetype)initWithDirPath:(NSString *)dirPath
-                    maxFileSize:(NSUInteger)maxFileSize
-                   rotationType:(RTCFileLoggerRotationType)rotationType {
-  NSParameterAssert(dirPath.length);
-  NSParameterAssert(maxFileSize);
-  if (self = [super init]) {
-    BOOL isDir = NO;
-    NSFileManager *fileManager = [NSFileManager defaultManager];
-    if ([fileManager fileExistsAtPath:dirPath isDirectory:&isDir]) {
-      if (!isDir) {
-        // Bail if something already exists there.
-        return nil;
-      }
-    } else {
-      if (![fileManager createDirectoryAtPath:dirPath
-                  withIntermediateDirectories:NO
-                                   attributes:nil
-                                        error:nil]) {
-        // Bail if we failed to create a directory.
-        return nil;
-      }
-    }
-    _dirPath = dirPath;
-    _maxFileSize = maxFileSize;
-    _severity = kRTCFileLoggerSeverityInfo;
-  }
-  return self;
-}
-
-- (void)dealloc {
-  [self stop];
-}
-
-- (void)start {
-  if (_hasStarted) {
-    return;
-  }
-  switch (_rotationType) {
-    case kRTCFileLoggerTypeApp:
-      _logSink.reset(
-          new rtc::FileRotatingLogSink(_dirPath.UTF8String,
-                                       kRTCFileLoggerRotatingLogPrefix,
-                                       _maxFileSize,
-                                       _maxFileSize / 10));
-      break;
-    case kRTCFileLoggerTypeCall:
-      _logSink.reset(
-          new rtc::CallSessionFileRotatingLogSink(_dirPath.UTF8String,
-                                                  _maxFileSize));
-      break;
-  }
-  if (!_logSink->Init()) {
-    LOG(LS_ERROR) << "Failed to open log files at path: "
-                  << _dirPath.UTF8String;
-    _logSink.reset();
-    return;
-  }
-  if (_shouldDisableBuffering) {
-    _logSink->DisableBuffering();
-  }
-  rtc::LogMessage::LogThreads(true);
-  rtc::LogMessage::LogTimestamps(true);
-  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();
-}
-
-- (NSData *)logData {
-  if (_hasStarted) {
-    return nil;
-  }
-  NSMutableData* logData = [NSMutableData data];
-  rtc::scoped_ptr<rtc::FileRotatingStream> stream;
-  switch(_rotationType) {
-    case kRTCFileLoggerTypeApp:
-      stream.reset(
-          new rtc::FileRotatingStream(_dirPath.UTF8String,
-                                      kRTCFileLoggerRotatingLogPrefix));
-      break;
-    case kRTCFileLoggerTypeCall:
-      stream.reset(new rtc::CallSessionFileRotatingStream(_dirPath.UTF8String));
-      break;
-  }
-  if (!stream->Open()) {
-    return logData;
-  }
-  size_t bufferSize = 0;
-  if (!stream->GetSize(&bufferSize) || bufferSize == 0) {
-    return logData;
-  }
-  size_t read = 0;
-  // Allocate memory using malloc so we can pass it direcly to NSData without
-  // copying.
-  rtc::scoped_ptr<uint8_t[]> buffer(static_cast<uint8_t*>(malloc(bufferSize)));
-  stream->ReadAll(buffer.get(), bufferSize, &read, nullptr);
-  logData = [[NSMutableData alloc] initWithBytesNoCopy:buffer.release()
-                                                length:read];
-  return logData;
-}
-
-#pragma mark - Private
-
-- (rtc::LoggingSeverity)rtcSeverity {
-  switch (_severity) {
-    case kRTCFileLoggerSeverityVerbose:
-      return rtc::LS_VERBOSE;
-    case kRTCFileLoggerSeverityInfo:
-      return rtc::LS_INFO;
-    case kRTCFileLoggerSeverityWarning:
-      return rtc::LS_WARNING;
-    case kRTCFileLoggerSeverityError:
-      return rtc::LS_ERROR;
-  }
-}
-
-@end