1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2016 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 "logging.h"
30 #include <stdlib.h>
31 #include <string.h>
32 #include <stdarg.h>
33 #include <time.h>
34
35 UcxLogger *ucx_logger_new(void *stream, unsigned int level, unsigned int mask) {
36 UcxLogger *logger = (UcxLogger*) malloc(sizeof(UcxLogger));
37 if (logger != NULL) {
38 logger->stream = stream;
39 logger->writer = (write_func)fwrite;
40 logger->dateformat = (char*) "%F %T %z ";
41 logger->level = level;
42 logger->mask = mask;
43 logger->levels = ucx_map_new(8);
44
45 unsigned int l;
46 l = UCX_LOGGER_ERROR;
47 ucx_map_int_put(logger->levels, l, (void*) "[ERROR]");
48 l = UCX_LOGGER_WARN;
49 ucx_map_int_put(logger->levels, l, (void*) "[WARNING]");
50 l = UCX_LOGGER_INFO;
51 ucx_map_int_put(logger->levels, l, (void*) "[INFO]");
52 l = UCX_LOGGER_TRACE;
53 ucx_map_int_put(logger->levels, l, (void*) "[TRACE]");
54 }
55
56 return logger;
57 }
58
59 void ucx_logger_free(UcxLogger *logger) {
60 ucx_map_free(logger->levels);
61 free(logger);
62 }
63
64 // estimated max. message length (documented)
65 #define UCX_LOGGER_MSGMAX 4096
66
67 void ucx_logger_logf(UcxLogger *logger, unsigned int level, const char* file,
68 const unsigned int line, const char *format, ...) {
69 if (level <= logger->level) {
70 char msg[UCX_LOGGER_MSGMAX];
71 char *text;
72 size_t k = 0;
73 size_t n;
74
75 if ((logger->mask & UCX_LOGGER_LEVEL) > 0) {
76 text = (char*) ucx_map_int_get(logger->levels, level);
77 n = strlen(text);
78 n = n > 256 ? 256 : n;
79 memcpy(msg+k, text, n);
80 k += n;
81 msg[k++] = ' ';
82 }
83 if ((logger->mask & UCX_LOGGER_TIMESTAMP) > 0) {
84 time_t now = time(NULL);
85 k += strftime(msg+k, 128, logger->dateformat, localtime(&now));
86 }
87 if ((logger->mask & UCX_LOGGER_SOURCE) > 0) {
88 n = strlen(file);
89 memcpy(msg+k, file, n);
90 k += n;
91 k += sprintf(msg+k, ":%u ", line);
92 }
93
94 msg[k++] = '-'; msg[k++] = ' ';
95
96 va_list args;
97 va_start (args, format);
98 k += vsnprintf(msg+k, UCX_LOGGER_MSGMAX-k-1, format, args);
99 va_end (args);
100
101 msg[k++] = '\n';
102
103 logger->writer(msg, 1, k, logger->stream);
104 }
105 }
106