1// Copyright 2015 Google Inc. All rights reserved 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15#ifndef LOG_H_ 16#define LOG_H_ 17 18#include <errno.h> 19#include <stdio.h> 20#include <stdlib.h> 21#include <string.h> 22 23#include "flags.h" 24#include "log.h" 25#include "stringprintf.h" 26 27using namespace std; 28 29extern bool g_log_no_exit; 30extern string* g_last_error; 31 32// Useful for logging-only arguments. 33#define UNUSED __attribute__((unused)) 34 35#ifdef NOLOG 36#define LOG(args...) 37#else 38#define LOG(args...) do { \ 39 fprintf(stderr, "*kati*: %s\n", StringPrintf(args).c_str()); \ 40 } while(0) 41#endif 42 43#define LOG_STAT(args...) do { \ 44 if (g_flags.enable_stat_logs) \ 45 fprintf(stderr, "*kati*: %s\n", StringPrintf(args).c_str()); \ 46 } while(0) 47 48#define PLOG(...) do { \ 49 fprintf(stderr, "%s: %s\n", StringPrintf(__VA_ARGS__).c_str(), \ 50 strerror(errno)); \ 51 } while (0) 52 53#define PERROR(...) do { \ 54 PLOG(__VA_ARGS__); \ 55 exit(1); \ 56 } while (0) 57 58#define WARN(...) do { \ 59 fprintf(stderr, "%s\n", StringPrintf(__VA_ARGS__).c_str()); \ 60 } while (0) 61 62#define KATI_WARN(...) do { \ 63 if (g_flags.enable_kati_warnings) \ 64 fprintf(stderr, "%s\n", StringPrintf(__VA_ARGS__).c_str()); \ 65 } while (0) 66 67#define ERROR(...) do { \ 68 if (!g_log_no_exit) { \ 69 fprintf(stderr, "%s\n", StringPrintf(__VA_ARGS__).c_str()); \ 70 exit(1); \ 71 } \ 72 g_last_error = new string(StringPrintf(__VA_ARGS__)); \ 73 } while (0) 74 75#define CHECK(c) if (!(c)) ERROR("%s:%d: %s", __FILE__, __LINE__, #c) 76 77// Set of logging functions that will automatically colorize lines that have 78// location information when --color_warnings is set. 79void ColorWarnLog(const char* file, int line, const char *msg); 80void ColorErrorLog(const char* file, int line, const char *msg); 81 82#define WARN_LOC(loc, ...) do { \ 83 ColorWarnLog(LOCF(loc), StringPrintf(__VA_ARGS__).c_str()); \ 84 } while (0) 85 86#define KATI_WARN_LOC(loc, ...) do { \ 87 if (g_flags.enable_kati_warnings) \ 88 ColorWarnLog(LOCF(loc), StringPrintf(__VA_ARGS__).c_str()); \ 89 } while(0) 90 91#define ERROR_LOC(loc, ...) do { \ 92 ColorErrorLog(LOCF(loc), StringPrintf(__VA_ARGS__).c_str()); \ 93 } while (0) 94 95#endif // LOG_H_ 96