--- /dev/null
+/*
+ * Copyright 2017 Google
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#import "FIRMMessageCode.h"
+
+// The convenience macros are only defined if they haven't already been defined.
+#ifndef FIRMessagingLoggerInfo
+
+// Convenience macros that log to the shared FIRMessagingLogger instance. These macros
+// are how users should typically log to FIRMessagingLogger.
+#define FIRMessagingLoggerDebug(code, ...) \
+ [FIRMessagingSharedLogger() logFuncDebug:__func__ messageCode:code msg:__VA_ARGS__]
+#define FIRMessagingLoggerInfo(code, ...) \
+ [FIRMessagingSharedLogger() logFuncInfo:__func__ messageCode:code msg:__VA_ARGS__]
+#define FIRMessagingLoggerNotice(code, ...) \
+ [FIRMessagingSharedLogger() logFuncNotice:__func__ messageCode:code msg:__VA_ARGS__]
+#define FIRMessagingLoggerWarn(code, ...) \
+ [FIRMessagingSharedLogger() logFuncWarning:__func__ messageCode:code msg:__VA_ARGS__]
+#define FIRMessagingLoggerError(code, ...) \
+ [FIRMessagingSharedLogger() logFuncError:__func__ messageCode:code msg:__VA_ARGS__]
+
+#endif // !defined(FIRMessagingLoggerInfo)
+
+@interface FIRMessagingLogger : NSObject
+
+- (void)logFuncDebug:(const char *)func
+ messageCode:(FIRMessagingMessageCode)messageCode
+ msg:(NSString *)fmt, ... NS_FORMAT_FUNCTION(3, 4);
+
+- (void)logFuncInfo:(const char *)func
+ messageCode:(FIRMessagingMessageCode)messageCode
+ msg:(NSString *)fmt, ... NS_FORMAT_FUNCTION(3, 4);
+
+- (void)logFuncNotice:(const char *)func
+ messageCode:(FIRMessagingMessageCode)messageCode
+ msg:(NSString *)fmt, ... NS_FORMAT_FUNCTION(3, 4);
+
+- (void)logFuncWarning:(const char *)func
+ messageCode:(FIRMessagingMessageCode)messageCode
+ msg:(NSString *)fmt, ... NS_FORMAT_FUNCTION(3, 4);
+
+- (void)logFuncError:(const char *)func
+ messageCode:(FIRMessagingMessageCode)messageCode
+ msg:(NSString *)fmt, ... NS_FORMAT_FUNCTION(3, 4);
+
+@end
+
+/**
+ * Instantiates and/or returns a shared FIRMessagingLogger used exclusively
+ * for FIRMessaging log messages.
+ *
+ * @return the shared FIRMessagingLogger instance
+ */
+FIRMessagingLogger *FIRMessagingSharedLogger(void);