PipeWire: log.h Source File

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spa/include/spa/support/log.h
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1/* Simple Plugin API
2 *
3 * Copyright © 2018 Wim Taymans
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24
25#ifndef SPA_LOG_H
26#define SPA_LOG_H
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
32#include <stdarg.h>
33
34#include <spa/utils/type.h>
35#include <spa/utils/defs.h>
36#include <spa/utils/hook.h>
37
56#define SPA_LOG_TOPIC_DEFAULT NULL
57
58enum spa_log_level {
59 SPA_LOG_LEVEL_NONE = 0,
60 SPA_LOG_LEVEL_ERROR,
61 SPA_LOG_LEVEL_WARN,
62 SPA_LOG_LEVEL_INFO,
63 SPA_LOG_LEVEL_DEBUG,
64 SPA_LOG_LEVEL_TRACE,
65};
66
70#define SPA_TYPE_INTERFACE_Log SPA_TYPE_INFO_INTERFACE_BASE "Log"
71
72
73struct spa_log {
76#define SPA_VERSION_LOG 0
77 struct spa_interface iface;
81 enum spa_log_level level;
82};
83
94struct spa_log_topic {
95#define SPA_VERSION_LOG_TOPIC 0
98 uint32_t version;
100 const char *topic;
102 enum spa_log_level level;
104 bool has_custom_level;
105};
106
107struct spa_log_methods {
108#define SPA_VERSION_LOG_METHODS 1
109 uint32_t version;
125 void (*log) (void *object,
126 enum spa_log_level level,
127 const char *file,
128 int line,
129 const char *func,
130 const char *fmt, ...) SPA_PRINTF_FUNC(6, 7);
131
147 void (*logv) (void *object,
148 enum spa_log_level level,
149 const char *file,
150 int line,
151 const char *func,
152 const char *fmt,
153 va_list args) SPA_PRINTF_FUNC(6, 0);
171 void (*logt) (void *object,
172 enum spa_log_level level,
173 const struct spa_log_topic *topic,
174 const char *file,
175 int line,
176 const char *func,
177 const char *fmt, ...) SPA_PRINTF_FUNC(7, 8);
178
196 void (*logtv) (void *object,
197 enum spa_log_level level,
198 const struct spa_log_topic *topic,
199 const char *file,
200 int line,
201 const char *func,
202 const char *fmt,
203 va_list args) SPA_PRINTF_FUNC(7, 0);
204
210 void (*topic_init) (void *object, struct spa_log_topic *topic);
211};
212
213
214#define SPA_LOG_TOPIC(v, t) \
215 (struct spa_log_topic){ .version = (v), .topic = (t)}
216
217#define spa_log_topic_init(l, topic) \
218do { \
219 struct spa_log *_l = l; \
220 if (SPA_LIKELY(_l)) { \
221 struct spa_interface *_if = &_l->iface; \
222 spa_interface_call(_if, struct spa_log_methods, \
223 topic_init, 1, topic); \
224 } \
225} while(0)
226
227/* Unused, left for backwards compat */
228#define spa_log_level_enabled(l,lev) ((l) && (l)->level >= (lev))
229
230#define spa_log_level_topic_enabled(l,topic,lev) \
231({ \
232 struct spa_log *_log = l; \
233 enum spa_log_level _lev = _log ? _log->level : SPA_LOG_LEVEL_NONE; \
234 struct spa_log_topic *_t = (struct spa_log_topic *)(topic); \
235 if (_t && _t->has_custom_level) \
236 _lev = _t->level; \
237 _lev >= (lev); \
238})
239
240/* Transparently calls to version 0 log if v1 is not supported */
241#define spa_log_logt(l,lev,topic,...) \
242({ \
243 struct spa_log *_l = l; \
244 struct spa_interface *_if = &_l->iface; \
245 if (SPA_UNLIKELY(spa_log_level_topic_enabled(_l, topic, lev))) { \
246 if (!spa_interface_call(_if, \
247 struct spa_log_methods, logt, 1, \
248 lev, topic, \
249 __VA_ARGS__)) \
250 spa_interface_call(_if, \
251 struct spa_log_methods, log, 0, \
252 lev, __VA_ARGS__); \
253 } \
254})
255
256/* Transparently calls to version 0 logv if v1 is not supported */
257#define spa_log_logtv(l,lev,topic,...) \
258({ \
259 struct spa_log *_l = l; \
260 struct spa_interface *_if = &_l->iface; \
261 if (SPA_UNLIKELY(spa_log_level_topic_enabled(_l, topic, lev))) { \
262 if (!spa_interface_call(_if, \
263 struct spa_log_methods, logtv, 1, \
264 lev, topic, \
265 __VA_ARGS__)) \
266 spa_interface_call(_if, \
267 struct spa_log_methods, logv, 0, \
268 lev, __VA_ARGS__); \
269 } \
270})
271
272#define spa_logt_lev(l,lev,t,...) \
273 spa_log_logt(l,lev,t,__FILE__,__LINE__,__func__,__VA_ARGS__)
274
275#define spa_log_lev(l,lev,...) \
276 spa_logt_lev(l,lev,SPA_LOG_TOPIC_DEFAULT,__VA_ARGS__)
277
278#define spa_log_log(l,lev,...) \
279 spa_log_logt(l,lev,SPA_LOG_TOPIC_DEFAULT,__VA_ARGS__)
280
281#define spa_log_logv(l,lev,...) \
282 spa_log_logtv(l,lev,SPA_LOG_TOPIC_DEFAULT,__VA_ARGS__)
283
284#define spa_log_error(l,...) spa_log_lev(l,SPA_LOG_LEVEL_ERROR,__VA_ARGS__)
285#define spa_log_warn(l,...) spa_log_lev(l,SPA_LOG_LEVEL_WARN,__VA_ARGS__)
286#define spa_log_info(l,...) spa_log_lev(l,SPA_LOG_LEVEL_INFO,__VA_ARGS__)
287#define spa_log_debug(l,...) spa_log_lev(l,SPA_LOG_LEVEL_DEBUG,__VA_ARGS__)
288#define spa_log_trace(l,...) spa_log_lev(l,SPA_LOG_LEVEL_TRACE,__VA_ARGS__)
289
290#define spa_logt_error(l,t,...) spa_logt_lev(l,SPA_LOG_LEVEL_ERROR,t,__VA_ARGS__)
291#define spa_logt_warn(l,t,...) spa_logt_lev(l,SPA_LOG_LEVEL_WARN,t,__VA_ARGS__)
292#define spa_logt_info(l,t,...) spa_logt_lev(l,SPA_LOG_LEVEL_INFO,t,__VA_ARGS__)
293#define spa_logt_debug(l,t,...) spa_logt_lev(l,SPA_LOG_LEVEL_DEBUG,t,__VA_ARGS__)
294#define spa_logt_trace(l,t,...) spa_logt_lev(l,SPA_LOG_LEVEL_TRACE,t,__VA_ARGS__)
295
296#ifndef FASTPATH
297#define spa_log_trace_fp(l,...) spa_log_lev(l,SPA_LOG_LEVEL_TRACE,__VA_ARGS__)
298#else
299#define spa_log_trace_fp(l,...)
300#endif
301
302
306#define SPA_KEY_LOG_LEVEL "log.level"
307#define SPA_KEY_LOG_COLORS "log.colors"
308#define SPA_KEY_LOG_FILE "log.file"
310#define SPA_KEY_LOG_TIMESTAMP "log.timestamp"
311#define SPA_KEY_LOG_LINE "log.line"
312#define SPA_KEY_LOG_PATTERNS "log.patterns"
318#ifdef __cplusplus
319} /* extern "C" */
320#endif
321#endif /* SPA_LOG_H */
defs.h
spa/utils/defs.h
spa_log_level
spa_log_level
Definition: spa/include/spa/support/log.h:65
SPA_LOG_LEVEL_INFO
@ SPA_LOG_LEVEL_INFO
Definition: spa/include/spa/support/log.h:69
SPA_LOG_LEVEL_NONE
@ SPA_LOG_LEVEL_NONE
Definition: spa/include/spa/support/log.h:66
SPA_LOG_LEVEL_TRACE
@ SPA_LOG_LEVEL_TRACE
Definition: spa/include/spa/support/log.h:71
SPA_LOG_LEVEL_DEBUG
@ SPA_LOG_LEVEL_DEBUG
Definition: spa/include/spa/support/log.h:70
SPA_LOG_LEVEL_ERROR
@ SPA_LOG_LEVEL_ERROR
Definition: spa/include/spa/support/log.h:67
SPA_LOG_LEVEL_WARN
@ SPA_LOG_LEVEL_WARN
Definition: spa/include/spa/support/log.h:68
SPA_PRINTF_FUNC
#define SPA_PRINTF_FUNC(fmt, arg1)
Definition: defs.h:289
hook.h
spa/utils/hook.h
type.h
spa/utils/type.h
spa_interface
Definition: hook.h:158
spa_log_methods
Definition: spa/include/spa/support/log.h:117
spa_log_methods::logt
void(*) void(*) void(* logt)(void *object, enum spa_log_level level, const struct spa_log_topic *topic, const char *file, int line, const char *func, const char *fmt,...) 1(7
Log a message with the given log level for the given topic.
Definition: spa/include/spa/support/log.h:182
spa_log_methods::version
uint32_t version
Definition: spa/include/spa/support/log.h:120
spa_log_methods::topic_init
void(*) void(*) void(*) void(*) void(* topic_init)(void *object, struct spa_log_topic *topic)
Initializes a spa_log_topic to the correct logging level.
Definition: spa/include/spa/support/log.h:221
spa_log_methods::logv
void(*) void(* logv)(void *object, enum spa_log_level level, const char *file, int line, const char *func, const char *fmt, va_list args) 1(6
Log a message with the given log level.
Definition: spa/include/spa/support/log.h:158
spa_log_methods::log
void(* log)(void *object, enum spa_log_level level, const char *file, int line, const char *func, const char *fmt,...) 1(6
Log a message with the given log level.
Definition: spa/include/spa/support/log.h:136
spa_log_methods::logtv
void(*) void(*) void(*) void(* logtv)(void *object, enum spa_log_level level, const struct spa_log_topic *topic, const char *file, int line, const char *func, const char *fmt, va_list args) 1(7
Log a message with the given log level for the given topic.
Definition: spa/include/spa/support/log.h:207
spa_log_topic
Identifier for a topic.
Definition: spa/include/spa/support/log.h:103
spa_log_topic::version
uint32_t version
the version of this topic.
Definition: spa/include/spa/support/log.h:108
spa_log_topic::has_custom_level
bool has_custom_level
False if this topic follows the Log level.
Definition: spa/include/spa/support/log.h:114
spa_log_topic::level
enum spa_log_level level
Logging level set for this topic.
Definition: spa/include/spa/support/log.h:112
spa_log_topic::topic
const char * topic
The string identifier for the topic.
Definition: spa/include/spa/support/log.h:110
spa_log
Definition: spa/include/spa/support/log.h:81
spa_log::iface
struct spa_interface iface
Definition: spa/include/spa/support/log.h:86
spa_log::level
enum spa_log_level level
Logging level, everything above this level is not logged.
Definition: spa/include/spa/support/log.h:90