comparison: ucx/logging.c
ucx/logging.c
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| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * | |
| 4 * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 26 * POSSIBILITY OF SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 #include "ucx/logging.h" | |
| 30 | |
| 31 #include <stdlib.h> | |
| 32 #include <string.h> | |
| 33 #include <stdarg.h> | |
| 34 #include <time.h> | |
| 35 | |
| 36 UcxLogger *ucx_logger_new(void *stream, unsigned int level, unsigned int mask) { | |
| 37 UcxLogger *logger = (UcxLogger*) malloc(sizeof(UcxLogger)); | |
| 38 if (logger != NULL) { | |
| 39 logger->stream = stream; | |
| 40 logger->writer = (write_func)fwrite; | |
| 41 logger->dateformat = (char*) "%F %T %z "; | |
| 42 logger->level = level; | |
| 43 logger->mask = mask; | |
| 44 logger->levels = ucx_map_new(8); | |
| 45 | |
| 46 unsigned int l; | |
| 47 l = UCX_LOGGER_ERROR; | |
| 48 ucx_map_int_put(logger->levels, l, (void*) "[ERROR]"); | |
| 49 l = UCX_LOGGER_WARN; | |
| 50 ucx_map_int_put(logger->levels, l, (void*) "[WARNING]"); | |
| 51 l = UCX_LOGGER_INFO; | |
| 52 ucx_map_int_put(logger->levels, l, (void*) "[INFO]"); | |
| 53 l = UCX_LOGGER_DEBUG; | |
| 54 ucx_map_int_put(logger->levels, l, (void*) "[DEBUG]"); | |
| 55 l = UCX_LOGGER_TRACE; | |
| 56 ucx_map_int_put(logger->levels, l, (void*) "[TRACE]"); | |
| 57 } | |
| 58 | |
| 59 return logger; | |
| 60 } | |
| 61 | |
| 62 void ucx_logger_free(UcxLogger *logger) { | |
| 63 ucx_map_free(logger->levels); | |
| 64 free(logger); | |
| 65 } | |
| 66 | |
| 67 // estimated max. message length (documented) | |
| 68 #define UCX_LOGGER_MSGMAX 4096 | |
| 69 | |
| 70 void ucx_logger_logf(UcxLogger *logger, unsigned int level, const char* file, | |
| 71 const unsigned int line, const char *format, ...) { | |
| 72 if (level <= logger->level) { | |
| 73 char msg[UCX_LOGGER_MSGMAX]; | |
| 74 const char *text; | |
| 75 size_t k = 0; | |
| 76 size_t n; | |
| 77 | |
| 78 if ((logger->mask & UCX_LOGGER_LEVEL) > 0) { | |
| 79 text = (const char*) ucx_map_int_get(logger->levels, level); | |
| 80 if (!text) { | |
| 81 text = "[UNKNOWN]"; | |
| 82 } | |
| 83 n = strlen(text); | |
| 84 n = n > 256 ? 256 : n; | |
| 85 memcpy(msg+k, text, n); | |
| 86 k += n; | |
| 87 msg[k++] = ' '; | |
| 88 } | |
| 89 if ((logger->mask & UCX_LOGGER_TIMESTAMP) > 0) { | |
| 90 time_t now = time(NULL); | |
| 91 k += strftime(msg+k, 128, logger->dateformat, localtime(&now)); | |
| 92 } | |
| 93 if ((logger->mask & UCX_LOGGER_SOURCE) > 0) { | |
| 94 char *fpart = strrchr(file, '/'); | |
| 95 if (fpart) file = fpart+1; | |
| 96 fpart = strrchr(file, '\\'); | |
| 97 if (fpart) file = fpart+1; | |
| 98 n = strlen(file); | |
| 99 memcpy(msg+k, file, n); | |
| 100 k += n; | |
| 101 k += sprintf(msg+k, ":%u ", line); | |
| 102 } | |
| 103 | |
| 104 if (k > 0) { | |
| 105 msg[k++] = '-'; msg[k++] = ' '; | |
| 106 } | |
| 107 | |
| 108 va_list args; | |
| 109 va_start (args, format); | |
| 110 k += vsnprintf(msg+k, UCX_LOGGER_MSGMAX-k-1, format, args); | |
| 111 va_end (args); | |
| 112 | |
| 113 msg[k++] = '\n'; | |
| 114 | |
| 115 logger->writer(msg, 1, k, logger->stream); | |
| 116 } | |
| 117 } |
