src/logging.c

Sat, 28 Oct 2017 15:59:16 +0200

author
Mike Becker <universe@uap-core.de>
date
Sat, 28 Oct 2017 15:59:16 +0200
changeset 260
a6184aff5108
parent 259
2f5dea574a75
child 295
7fc65395188e
permissions
-rw-r--r--

rename LICENSE to COPYING to be distributed by autoconf

universe@103 1 /*
universe@103 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@103 3 *
universe@259 4 * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved.
universe@103 5 *
universe@103 6 * Redistribution and use in source and binary forms, with or without
universe@103 7 * modification, are permitted provided that the following conditions are met:
universe@103 8 *
universe@103 9 * 1. Redistributions of source code must retain the above copyright
universe@103 10 * notice, this list of conditions and the following disclaimer.
universe@103 11 *
universe@103 12 * 2. Redistributions in binary form must reproduce the above copyright
universe@103 13 * notice, this list of conditions and the following disclaimer in the
universe@103 14 * documentation and/or other materials provided with the distribution.
universe@103 15 *
universe@103 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@103 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@103 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@103 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@103 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@103 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@103 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@103 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@103 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@103 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@103 26 * POSSIBILITY OF SUCH DAMAGE.
universe@103 27 */
universe@103 28
universe@251 29 #include "ucx/logging.h"
universe@251 30
olaf@57 31 #include <stdlib.h>
universe@80 32 #include <string.h>
universe@81 33 #include <stdarg.h>
universe@82 34 #include <time.h>
olaf@57 35
universe@83 36 UcxLogger *ucx_logger_new(void *stream, unsigned int level, unsigned int mask) {
olaf@57 37 UcxLogger *logger = (UcxLogger*) malloc(sizeof(UcxLogger));
olaf@57 38 if (logger != NULL) {
olaf@57 39 logger->stream = stream;
universe@82 40 logger->writer = (write_func)fwrite;
universe@95 41 logger->dateformat = (char*) "%F %T %z ";
olaf@57 42 logger->level = level;
universe@80 43 logger->mask = mask;
universe@80 44 logger->levels = ucx_map_new(8);
universe@80 45
universe@80 46 unsigned int l;
universe@80 47 l = UCX_LOGGER_ERROR;
universe@95 48 ucx_map_int_put(logger->levels, l, (void*) "[ERROR]");
universe@80 49 l = UCX_LOGGER_WARN;
universe@95 50 ucx_map_int_put(logger->levels, l, (void*) "[WARNING]");
universe@80 51 l = UCX_LOGGER_INFO;
universe@95 52 ucx_map_int_put(logger->levels, l, (void*) "[INFO]");
universe@80 53 l = UCX_LOGGER_TRACE;
universe@95 54 ucx_map_int_put(logger->levels, l, (void*) "[TRACE]");
olaf@57 55 }
olaf@57 56
olaf@57 57 return logger;
olaf@57 58 }
olaf@57 59
universe@80 60 void ucx_logger_free(UcxLogger *logger) {
universe@80 61 ucx_map_free(logger->levels);
universe@80 62 free(logger);
universe@80 63 }
universe@80 64
universe@152 65 // estimated max. message length (documented)
universe@152 66 #define UCX_LOGGER_MSGMAX 4096
universe@152 67
universe@81 68 void ucx_logger_logf(UcxLogger *logger, unsigned int level, const char* file,
universe@81 69 const unsigned int line, const char *format, ...) {
olaf@57 70 if (level <= logger->level) {
universe@152 71 char msg[UCX_LOGGER_MSGMAX];
universe@81 72 char *text;
universe@81 73 size_t k = 0;
universe@81 74 size_t n;
universe@80 75
universe@80 76 if ((logger->mask & UCX_LOGGER_LEVEL) > 0) {
universe@81 77 text = (char*) ucx_map_int_get(logger->levels, level);
universe@81 78 n = strlen(text);
universe@171 79 n = n > 256 ? 256 : n;
universe@81 80 memcpy(msg+k, text, n);
universe@81 81 k += n;
universe@81 82 msg[k++] = ' ';
universe@80 83 }
universe@82 84 if ((logger->mask & UCX_LOGGER_TIMESTAMP) > 0) {
universe@82 85 time_t now = time(NULL);
universe@82 86 k += strftime(msg+k, 128, logger->dateformat, localtime(&now));
universe@82 87 }
universe@80 88 if ((logger->mask & UCX_LOGGER_SOURCE) > 0) {
universe@81 89 n = strlen(file);
universe@81 90 memcpy(msg+k, file, n);
universe@81 91 k += n;
universe@171 92 k += sprintf(msg+k, ":%u ", line);
universe@80 93 }
universe@80 94
universe@81 95 msg[k++] = '-'; msg[k++] = ' ';
universe@81 96
universe@81 97 va_list args;
universe@81 98 va_start (args, format);
universe@152 99 k += vsnprintf(msg+k, UCX_LOGGER_MSGMAX-k-1, format, args);
universe@81 100 va_end (args);
universe@81 101
universe@80 102 msg[k++] = '\n';
universe@80 103
universe@81 104 logger->writer(msg, 1, k, logger->stream);
olaf@57 105 }
olaf@57 106 }

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