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/*
 *  Copyright 2015 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>

// Subset of rtc::LoggingSeverity.
typedef NS_ENUM(NSInteger, RTCLoggingSeverity) {
  kRTCLoggingSeverityVerbose,
  kRTCLoggingSeverityInfo,
  kRTCLoggingSeverityWarning,
  kRTCLoggingSeverityError,
};

#if defined(__cplusplus)
extern "C" void RTCLogEx(RTCLoggingSeverity severity, NSString* log_string);
extern "C" void RTCSetMinDebugLogLevel(RTCLoggingSeverity severity);
extern "C" NSString* RTCFileName(const char* filePath);
#else

// Wrapper for C++ LOG(sev) macros.
// Logs the log string to the webrtc logstream for the given severity.
extern void RTCLogEx(RTCLoggingSeverity severity, NSString* log_string);

// Wrapper for rtc::LogMessage::LogToDebug.
// Sets the minimum severity to be logged to console.
extern void RTCSetMinDebugLogLevel(RTCLoggingSeverity severity);

// Returns the filename with the path prefix removed.
extern NSString* RTCFileName(const char* filePath);

#endif

// Some convenience macros.

#define RTCLogString(format, ...)                    \
  [NSString stringWithFormat:@"(%@:%d %s): " format, \
      RTCFileName(__FILE__),                         \
      __LINE__,                                      \
      __FUNCTION__,                                  \
      ##__VA_ARGS__]

#define RTCLogFormat(severity, format, ...)                     \
  do {                                                          \
    NSString* log_string = RTCLogString(format, ##__VA_ARGS__); \
    RTCLogEx(severity, log_string);                             \
  } while (false)

#define RTCLogVerbose(format, ...)                                \
  RTCLogFormat(kRTCLoggingSeverityVerbose, format, ##__VA_ARGS__) \

#define RTCLogInfo(format, ...)                                   \
  RTCLogFormat(kRTCLoggingSeverityInfo, format, ##__VA_ARGS__)    \

#define RTCLogWarning(format, ...)                                \
  RTCLogFormat(kRTCLoggingSeverityWarning, format, ##__VA_ARGS__) \

#define RTCLogError(format, ...)                                  \
  RTCLogFormat(kRTCLoggingSeverityError, format, ##__VA_ARGS__)   \

#if !defined(NDEBUG)
#define RTCLogDebug(format, ...) RTCLogInfo(format, ##__VA_ARGS__)
#else
#define RTCLogDebug(format, ...) \
  do {                           \
  } while (false)
#endif

#define RTCLog(format, ...) RTCLogInfo(format, ##__VA_ARGS__)