ucx/logging.c

Tue, 17 Oct 2017 15:15:54 +0200

author
Mike Becker <universe@uap-core.de>
date
Tue, 17 Oct 2017 15:15:54 +0200
changeset 250
b7d1317b138e
parent 225
a1a068c2c4ef
permissions
-rw-r--r--

updates license

universe@103 1 /*
universe@103 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@103 3 *
universe@250 4 * Copyright 2017 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
olaf@57 29 #include "logging.h"
olaf@57 30 #include <stdlib.h>
universe@80 31 #include <string.h>
universe@81 32 #include <stdarg.h>
universe@82 33 #include <time.h>
olaf@57 34
universe@83 35 UcxLogger *ucx_logger_new(void *stream, unsigned int level, unsigned int mask) {
olaf@57 36 UcxLogger *logger = (UcxLogger*) malloc(sizeof(UcxLogger));
olaf@57 37 if (logger != NULL) {
olaf@57 38 logger->stream = stream;
universe@82 39 logger->writer = (write_func)fwrite;
universe@95 40 logger->dateformat = (char*) "%F %T %z ";
olaf@57 41 logger->level = level;
universe@80 42 logger->mask = mask;
universe@80 43 logger->levels = ucx_map_new(8);
universe@80 44
universe@80 45 unsigned int l;
universe@80 46 l = UCX_LOGGER_ERROR;
universe@95 47 ucx_map_int_put(logger->levels, l, (void*) "[ERROR]");
universe@80 48 l = UCX_LOGGER_WARN;
universe@95 49 ucx_map_int_put(logger->levels, l, (void*) "[WARNING]");
universe@80 50 l = UCX_LOGGER_INFO;
universe@95 51 ucx_map_int_put(logger->levels, l, (void*) "[INFO]");
universe@80 52 l = UCX_LOGGER_TRACE;
universe@95 53 ucx_map_int_put(logger->levels, l, (void*) "[TRACE]");
olaf@57 54 }
olaf@57 55
olaf@57 56 return logger;
olaf@57 57 }
olaf@57 58
universe@80 59 void ucx_logger_free(UcxLogger *logger) {
universe@80 60 ucx_map_free(logger->levels);
universe@80 61 free(logger);
universe@80 62 }
universe@80 63
universe@152 64 // estimated max. message length (documented)
universe@152 65 #define UCX_LOGGER_MSGMAX 4096
universe@152 66
universe@81 67 void ucx_logger_logf(UcxLogger *logger, unsigned int level, const char* file,
universe@81 68 const unsigned int line, const char *format, ...) {
olaf@57 69 if (level <= logger->level) {
universe@152 70 char msg[UCX_LOGGER_MSGMAX];
universe@81 71 char *text;
universe@81 72 size_t k = 0;
universe@81 73 size_t n;
universe@80 74
universe@80 75 if ((logger->mask & UCX_LOGGER_LEVEL) > 0) {
universe@81 76 text = (char*) ucx_map_int_get(logger->levels, level);
universe@81 77 n = strlen(text);
universe@171 78 n = n > 256 ? 256 : n;
universe@81 79 memcpy(msg+k, text, n);
universe@81 80 k += n;
universe@81 81 msg[k++] = ' ';
universe@80 82 }
universe@82 83 if ((logger->mask & UCX_LOGGER_TIMESTAMP) > 0) {
universe@82 84 time_t now = time(NULL);
universe@82 85 k += strftime(msg+k, 128, logger->dateformat, localtime(&now));
universe@82 86 }
universe@80 87 if ((logger->mask & UCX_LOGGER_SOURCE) > 0) {
universe@81 88 n = strlen(file);
universe@81 89 memcpy(msg+k, file, n);
universe@81 90 k += n;
universe@171 91 k += sprintf(msg+k, ":%u ", line);
universe@80 92 }
universe@80 93
universe@81 94 msg[k++] = '-'; msg[k++] = ' ';
universe@81 95
universe@81 96 va_list args;
universe@81 97 va_start (args, format);
universe@152 98 k += vsnprintf(msg+k, UCX_LOGGER_MSGMAX-k-1, format, args);
universe@81 99 va_end (args);
universe@81 100
universe@80 101 msg[k++] = '\n';
universe@80 102
universe@81 103 logger->writer(msg, 1, k, logger->stream);
olaf@57 104 }
olaf@57 105 }

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