comparison spandsp-0.0.6pre17/src/logging.c @ 4:26cd8f1ef0b1

import spandsp-0.0.6pre17
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Fri, 25 Jun 2010 15:50:58 +0200
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3:c6c5a16ce2f2 4:26cd8f1ef0b1
1 /*
2 * SpanDSP - a series of DSP components for telephony
3 *
4 * logging.c - error and debug logging.
5 *
6 * Written by Steve Underwood <steveu@coppice.org>
7 *
8 * Copyright (C) 2005 Steve Underwood
9 *
10 * All rights reserved.
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU Lesser General Public License version 2.1,
14 * as published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 * $Id: logging.c,v 1.32 2009/02/10 17:44:18 steveu Exp $
26 */
27
28 /*! \file */
29
30 #if defined(HAVE_CONFIG_H)
31 #include "config.h"
32 #endif
33
34 #include <limits.h>
35 #include <stdio.h>
36 #include <stdarg.h>
37 #include <fcntl.h>
38 #include <stdlib.h>
39 #include <inttypes.h>
40 #include <string.h>
41 #include <errno.h>
42 #include <signal.h>
43 #include <sys/time.h>
44 #include <time.h>
45
46 #include "spandsp/telephony.h"
47 #include "spandsp/logging.h"
48
49 #include "spandsp/private/logging.h"
50
51 static void default_message_handler(int level, const char *text);
52
53 static message_handler_func_t __span_message = &default_message_handler;
54 static error_handler_func_t __span_error = NULL;
55
56 /* Note that this list *must* match the enum definition in logging.h */
57 static const char *severities[] =
58 {
59 "NONE",
60 "ERROR",
61 "WARNING",
62 "PROTOCOL_ERROR",
63 "PROTOCOL_WARNING",
64 "FLOW",
65 "FLOW 2",
66 "FLOW 3",
67 "DEBUG 1",
68 "DEBUG 2",
69 "DEBUG 3"
70 };
71
72 static void default_message_handler(int level, const char *text)
73 {
74 fprintf(stderr, "%s", text);
75 }
76 /*- End of function --------------------------------------------------------*/
77
78 SPAN_DECLARE(int) span_log_test(logging_state_t *s, int level)
79 {
80 if (s && (s->level & SPAN_LOG_SEVERITY_MASK) >= (level & SPAN_LOG_SEVERITY_MASK))
81 return TRUE;
82 return FALSE;
83 }
84 /*- End of function --------------------------------------------------------*/
85
86 SPAN_DECLARE(int) span_log(logging_state_t *s, int level, const char *format, ...)
87 {
88 char msg[1024 + 1];
89 va_list arg_ptr;
90 int len;
91 struct tm *tim;
92 struct timeval nowx;
93 time_t now;
94
95 if (span_log_test(s, level))
96 {
97 va_start(arg_ptr, format);
98 len = 0;
99 if ((level & SPAN_LOG_SUPPRESS_LABELLING) == 0)
100 {
101 if ((s->level & SPAN_LOG_SHOW_DATE))
102 {
103 gettimeofday(&nowx, NULL);
104 now = nowx.tv_sec;
105 tim = gmtime(&now);
106 len += snprintf(msg + len,
107 1024 - len,
108 "%04d/%02d/%02d %02d:%02d:%02d.%03d ",
109 tim->tm_year + 1900,
110 tim->tm_mon + 1,
111 tim->tm_mday,
112 tim->tm_hour,
113 tim->tm_min,
114 tim->tm_sec,
115 (int) nowx.tv_usec/1000);
116 }
117 /*endif*/
118 if ((s->level & SPAN_LOG_SHOW_SAMPLE_TIME))
119 {
120 now = s->elapsed_samples/s->samples_per_second;
121 tim = gmtime(&now);
122 len += snprintf(msg + len,
123 1024 - len,
124 "%02d:%02d:%02d.%03d ",
125 tim->tm_hour,
126 tim->tm_min,
127 tim->tm_sec,
128 (int) (s->elapsed_samples%s->samples_per_second)*1000/s->samples_per_second);
129 }
130 /*endif*/
131 if ((s->level & SPAN_LOG_SHOW_SEVERITY) && (level & SPAN_LOG_SEVERITY_MASK) <= SPAN_LOG_DEBUG_3)
132 len += snprintf(msg + len, 1024 - len, "%s ", severities[level & SPAN_LOG_SEVERITY_MASK]);
133 /*endif*/
134 if ((s->level & SPAN_LOG_SHOW_PROTOCOL) && s->protocol)
135 len += snprintf(msg + len, 1024 - len, "%s ", s->protocol);
136 /*endif*/
137 if ((s->level & SPAN_LOG_SHOW_TAG) && s->tag)
138 len += snprintf(msg + len, 1024 - len, "%s ", s->tag);
139 /*endif*/
140 }
141 /*endif*/
142 len += vsnprintf(msg + len, 1024 - len, format, arg_ptr);
143 if (s->span_error && level == SPAN_LOG_ERROR)
144 s->span_error(msg);
145 else if (__span_error && level == SPAN_LOG_ERROR)
146 __span_error(msg);
147 else if (s->span_message)
148 s->span_message(level, msg);
149 else if (__span_message)
150 __span_message(level, msg);
151 /*endif*/
152 va_end(arg_ptr);
153 return 1;
154 }
155 /*endif*/
156 return 0;
157 }
158 /*- End of function --------------------------------------------------------*/
159
160 SPAN_DECLARE(int) span_log_buf(logging_state_t *s, int level, const char *tag, const uint8_t *buf, int len)
161 {
162 char msg[1024];
163 int i;
164 int msg_len;
165
166 if (span_log_test(s, level))
167 {
168 msg_len = 0;
169 if (tag)
170 msg_len += snprintf(msg + msg_len, 1024 - msg_len, "%s", tag);
171 for (i = 0; i < len && msg_len < 800; i++)
172 msg_len += snprintf(msg + msg_len, 1024 - msg_len, " %02x", buf[i]);
173 msg_len += snprintf(msg + msg_len, 1024 - msg_len, "\n");
174 return span_log(s, level, msg);
175 }
176 return 0;
177 }
178 /*- End of function --------------------------------------------------------*/
179
180 SPAN_DECLARE(int) span_log_set_level(logging_state_t *s, int level)
181 {
182 s->level = level;
183
184 return 0;
185 }
186 /*- End of function --------------------------------------------------------*/
187
188 SPAN_DECLARE(int) span_log_set_tag(logging_state_t *s, const char *tag)
189 {
190 s->tag = tag;
191
192 return 0;
193 }
194 /*- End of function --------------------------------------------------------*/
195
196 SPAN_DECLARE(int) span_log_set_protocol(logging_state_t *s, const char *protocol)
197 {
198 s->protocol = protocol;
199
200 return 0;
201 }
202 /*- End of function --------------------------------------------------------*/
203
204 SPAN_DECLARE(int) span_log_set_sample_rate(logging_state_t *s, int samples_per_second)
205 {
206 s->samples_per_second = samples_per_second;
207
208 return 0;
209 }
210 /*- End of function --------------------------------------------------------*/
211
212 SPAN_DECLARE(int) span_log_bump_samples(logging_state_t *s, int samples)
213 {
214 s->elapsed_samples += samples;
215
216 return 0;
217 }
218 /*- End of function --------------------------------------------------------*/
219
220 SPAN_DECLARE(void) span_log_set_message_handler(logging_state_t *s, message_handler_func_t func)
221 {
222 s->span_message = func;
223 }
224 /*- End of function --------------------------------------------------------*/
225
226 SPAN_DECLARE(void) span_log_set_error_handler(logging_state_t *s, error_handler_func_t func)
227 {
228 s->span_error = func;
229 }
230 /*- End of function --------------------------------------------------------*/
231
232 SPAN_DECLARE(void) span_set_message_handler(message_handler_func_t func)
233 {
234 __span_message = func;
235 }
236 /*- End of function --------------------------------------------------------*/
237
238 SPAN_DECLARE(void) span_set_error_handler(error_handler_func_t func)
239 {
240 __span_error = func;
241 }
242 /*- End of function --------------------------------------------------------*/
243
244 SPAN_DECLARE(logging_state_t *) span_log_init(logging_state_t *s, int level, const char *tag)
245 {
246 if (s == NULL)
247 {
248 if ((s = (logging_state_t *) malloc(sizeof(*s))) == NULL)
249 return NULL;
250 }
251 s->span_error = __span_error;
252 s->span_message = __span_message;
253 s->level = level;
254 s->tag = tag;
255 s->protocol = NULL;
256 s->samples_per_second = SAMPLE_RATE;
257 s->elapsed_samples = 0;
258
259 return s;
260 }
261 /*- End of function --------------------------------------------------------*/
262
263 SPAN_DECLARE(int) span_log_release(logging_state_t *s)
264 {
265 return 0;
266 }
267 /*- End of function --------------------------------------------------------*/
268
269 SPAN_DECLARE(int) span_log_free(logging_state_t *s)
270 {
271 if (s)
272 free(s);
273 return 0;
274 }
275 /*- End of function --------------------------------------------------------*/
276 /*- End of file ------------------------------------------------------------*/

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