1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/logging.c Tue Oct 17 16:15:41 2017 +0200
1.3 @@ -0,0 +1,106 @@
1.4 +/*
1.5 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
1.6 + *
1.7 + * Copyright 2017 Olaf Wintermann. All rights reserved.
1.8 + *
1.9 + * Redistribution and use in source and binary forms, with or without
1.10 + * modification, are permitted provided that the following conditions are met:
1.11 + *
1.12 + * 1. Redistributions of source code must retain the above copyright
1.13 + * notice, this list of conditions and the following disclaimer.
1.14 + *
1.15 + * 2. Redistributions in binary form must reproduce the above copyright
1.16 + * notice, this list of conditions and the following disclaimer in the
1.17 + * documentation and/or other materials provided with the distribution.
1.18 + *
1.19 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.20 + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.21 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.22 + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
1.23 + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.24 + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.25 + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.26 + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.27 + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.28 + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.29 + * POSSIBILITY OF SUCH DAMAGE.
1.30 + */
1.31 +
1.32 +#include "ucx/logging.h"
1.33 +
1.34 +#include <stdlib.h>
1.35 +#include <string.h>
1.36 +#include <stdarg.h>
1.37 +#include <time.h>
1.38 +
1.39 +UcxLogger *ucx_logger_new(void *stream, unsigned int level, unsigned int mask) {
1.40 + UcxLogger *logger = (UcxLogger*) malloc(sizeof(UcxLogger));
1.41 + if (logger != NULL) {
1.42 + logger->stream = stream;
1.43 + logger->writer = (write_func)fwrite;
1.44 + logger->dateformat = (char*) "%F %T %z ";
1.45 + logger->level = level;
1.46 + logger->mask = mask;
1.47 + logger->levels = ucx_map_new(8);
1.48 +
1.49 + unsigned int l;
1.50 + l = UCX_LOGGER_ERROR;
1.51 + ucx_map_int_put(logger->levels, l, (void*) "[ERROR]");
1.52 + l = UCX_LOGGER_WARN;
1.53 + ucx_map_int_put(logger->levels, l, (void*) "[WARNING]");
1.54 + l = UCX_LOGGER_INFO;
1.55 + ucx_map_int_put(logger->levels, l, (void*) "[INFO]");
1.56 + l = UCX_LOGGER_TRACE;
1.57 + ucx_map_int_put(logger->levels, l, (void*) "[TRACE]");
1.58 + }
1.59 +
1.60 + return logger;
1.61 +}
1.62 +
1.63 +void ucx_logger_free(UcxLogger *logger) {
1.64 + ucx_map_free(logger->levels);
1.65 + free(logger);
1.66 +}
1.67 +
1.68 +// estimated max. message length (documented)
1.69 +#define UCX_LOGGER_MSGMAX 4096
1.70 +
1.71 +void ucx_logger_logf(UcxLogger *logger, unsigned int level, const char* file,
1.72 + const unsigned int line, const char *format, ...) {
1.73 + if (level <= logger->level) {
1.74 + char msg[UCX_LOGGER_MSGMAX];
1.75 + char *text;
1.76 + size_t k = 0;
1.77 + size_t n;
1.78 +
1.79 + if ((logger->mask & UCX_LOGGER_LEVEL) > 0) {
1.80 + text = (char*) ucx_map_int_get(logger->levels, level);
1.81 + n = strlen(text);
1.82 + n = n > 256 ? 256 : n;
1.83 + memcpy(msg+k, text, n);
1.84 + k += n;
1.85 + msg[k++] = ' ';
1.86 + }
1.87 + if ((logger->mask & UCX_LOGGER_TIMESTAMP) > 0) {
1.88 + time_t now = time(NULL);
1.89 + k += strftime(msg+k, 128, logger->dateformat, localtime(&now));
1.90 + }
1.91 + if ((logger->mask & UCX_LOGGER_SOURCE) > 0) {
1.92 + n = strlen(file);
1.93 + memcpy(msg+k, file, n);
1.94 + k += n;
1.95 + k += sprintf(msg+k, ":%u ", line);
1.96 + }
1.97 +
1.98 + msg[k++] = '-'; msg[k++] = ' ';
1.99 +
1.100 + va_list args;
1.101 + va_start (args, format);
1.102 + k += vsnprintf(msg+k, UCX_LOGGER_MSGMAX-k-1, format, args);
1.103 + va_end (args);
1.104 +
1.105 + msg[k++] = '\n';
1.106 +
1.107 + logger->writer(msg, 1, k, logger->stream);
1.108 + }
1.109 +}
