1 /* 2 * Copyright 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SYSTEM_KEYMASTER_LOGGER_H_ 18 #define SYSTEM_KEYMASTER_LOGGER_H_ 19 20 namespace keymaster { 21 22 class Logger { 23 public: Logger()24 Logger() {} ~Logger()25 virtual ~Logger() {} 26 virtual int debug(const char* fmt, ...) const = 0; 27 virtual int info(const char* fmt, ...) const = 0; 28 virtual int error(const char* fmt, ...) const = 0; 29 virtual int severe(const char* fmt, ...) const = 0; 30 31 private: 32 // Disallow copying. 33 Logger(const Logger&); 34 void operator=(const Logger&); 35 }; 36 37 } // namespace keymaster 38 39 #endif // SYSTEM_KEYMASTER_LOGGER_H_ 40