1 /****************************************************************************** 2 * 3 * Copyright 2014 Google, Inc. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 #pragma once 20 21 /* 22 * TODO(armansito): Work-around until we figure out a way to generate logs in a 23 * platform-independent manner. 24 */ 25 #if defined(OS_GENERIC) 26 27 /* syslog didn't work well here since we would be redefining LOG_DEBUG. */ 28 #include <stdio.h> 29 30 #define LOGWRAPPER(tag, fmt, args...) \ 31 fprintf(stderr, "%s: " fmt "\n", tag, ##args) 32 33 #define LOG_VERBOSE(...) LOGWRAPPER(__VA_ARGS__) 34 #define LOG_DEBUG(...) LOGWRAPPER(__VA_ARGS__) 35 #define LOG_INFO(...) LOGWRAPPER(__VA_ARGS__) 36 #define LOG_WARN(...) LOGWRAPPER(__VA_ARGS__) 37 #define LOG_ERROR(...) LOGWRAPPER(__VA_ARGS__) 38 39 #define LOG_EVENT_INT(...) 40 41 #else /* !defined(OS_GENERIC) */ 42 43 #include <log/log.h> 44 45 /** 46 * These log statements are effectively executing only ALOG(_________, tag, fmt, 47 * ## args ). 48 * fprintf is only to cause compilation error when LOG_TAG is not provided, 49 * which breaks build on Linux (for OS_GENERIC). 50 */ 51 52 #if LOG_NDEBUG 53 #define LOG_VERBOSE(tag, fmt, args...) \ 54 do { \ 55 (true) ? ((int)0) : fprintf(stderr, "%s" fmt, tag, ##args); \ 56 } while (0) 57 #else // LOG_NDEBUG 58 #define LOG_VERBOSE(tag, fmt, args...) \ 59 do { \ 60 (true) ? ALOG(LOG_VERBOSE, tag, fmt, ##args) \ 61 : fprintf(stderr, "%s" fmt, tag, ##args); \ 62 } while (0) 63 #endif // !LOG_NDEBUG 64 65 #define LOG_DEBUG(tag, fmt, args...) \ 66 do { \ 67 (true) ? ALOG(LOG_DEBUG, tag, fmt, ##args) \ 68 : fprintf(stderr, "%s" fmt, tag, ##args); \ 69 } while (0) 70 #define LOG_INFO(tag, fmt, args...) \ 71 do { \ 72 (true) ? ALOG(LOG_INFO, tag, fmt, ##args) \ 73 : fprintf(stderr, "%s" fmt, tag, ##args); \ 74 } while (0) 75 #define LOG_WARN(tag, fmt, args...) \ 76 do { \ 77 (true) ? ALOG(LOG_WARN, tag, fmt, ##args) \ 78 : fprintf(stderr, "%s" fmt, tag, ##args); \ 79 } while (0) 80 #define LOG_ERROR(tag, fmt, args...) \ 81 do { \ 82 (true) ? ALOG(LOG_ERROR, tag, fmt, ##args) \ 83 : fprintf(stderr, "%s" fmt, tag, ##args); \ 84 } while (0) 85 86 #endif /* defined(OS_GENERIC) */ 87