iOS: Move AppRTC logging methods to public headers.

talk/examples/objc/AppRTCDemo/common/ARDLogging.h

-/*
- * 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 <Foundation/Foundation.h>
-
-// We route all logging through the WebRTC logger. By doing this we will get
-// both app and WebRTC logs in the same place, which we can then route to a
-// file if we need to. A side effect of this is that we get severity for free.
-typedef NS_ENUM(NSInteger, ARDLogSeverity) {
-  kARDLogSeverityVerbose,
-  kARDLogSeverityInfo,
-  kARDLogSeverityWarning,
-  kARDLogSeverityError,
-};
-
-#if defined(__cplusplus)
-extern "C" void ARDLogToWebRTCLogger(ARDLogSeverity severity,
-                                     NSString *logString);
-extern "C" NSString *ARDFileName(const char *filePath);
-extern "C" void ARDLogInit();
-#else
-// Logs |logString| to the WebRTC logger at the given severity.
-extern void ARDLogToWebRTCLogger(ARDLogSeverity severity, NSString *logString);
-// Returns the filename with the path prefix removed.
-extern NSString *ARDFileName(const char *filePath);
-// Initializes the correct logging levels. This should be called once on app
-// startup.
-extern void ARDLogInit();
-#endif
-
-#define ARDLogString(format, ...)                    \
-  [NSString stringWithFormat:@"(%@:%d %s): " format, \
-      ARDFileName(__FILE__),                         \
-      __LINE__,                                      \
-      __FUNCTION__,                                  \
-      ##__VA_ARGS__]
-
-#define ARDLogEx(severity, format, ...)                        \
-  do {                                                         \
-    NSString *logString = ARDLogString(format, ##__VA_ARGS__); \
-    ARDLogToWebRTCLogger(severity, logString);                 \
-  } while (false)
-
-#define ARDLogVerbose(format, ...)                        \
-  ARDLogEx(kARDLogSeverityVerbose, format, ##__VA_ARGS__) \
-
-#define ARDLogInfo(format, ...)                           \
-  ARDLogEx(kARDLogSeverityInfo, format, ##__VA_ARGS__)    \
-
-#define ARDLogWarning(format, ...)                        \
-  ARDLogEx(kARDLogSeverityWarning, format, ##__VA_ARGS__) \
-
-#define ARDLogError(format, ...)                          \
-  ARDLogEx(kARDLogSeverityError, format, ##__VA_ARGS__)   \
-
-#ifdef _DEBUG
-#define ARDLogDebug(format, ...) ARDLogInfo(format, ##__VA_ARGS__)
-#else
-#define ARDLogDebug(format, ...) \
-  do {                           \
-  } while (false)
-#endif
-
-#define ARDLog(format, ...) ARDLogInfo(format, ##__VA_ARGS__)