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 }
118