PipeWire: log.h Source File

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spa/include/spa/support/log.h
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1/* Simple Plugin API */
2/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
3/* SPDX-License-Identifier: MIT */
4
5#ifndef SPA_LOG_H
6#define SPA_LOG_H
7
8#ifdef __cplusplus
9extern "C" {
10#endif
11
12#include <stdarg.h>
13
14#include <spa/utils/type.h>
15#include <spa/utils/defs.h>
16#include <spa/utils/hook.h>
17
36#define SPA_LOG_TOPIC_DEFAULT NULL
37
38enum spa_log_level {
39 SPA_LOG_LEVEL_NONE = 0,
40 SPA_LOG_LEVEL_ERROR,
41 SPA_LOG_LEVEL_WARN,
42 SPA_LOG_LEVEL_INFO,
43 SPA_LOG_LEVEL_DEBUG,
44 SPA_LOG_LEVEL_TRACE,
45};
46
50#define SPA_TYPE_INTERFACE_Log SPA_TYPE_INFO_INTERFACE_BASE "Log"
51
52
53struct spa_log {
56#define SPA_VERSION_LOG 0
57 struct spa_interface iface;
61 enum spa_log_level level;
62};
63
74struct spa_log_topic {
75#define SPA_VERSION_LOG_TOPIC 0
78 uint32_t version;
80 const char *topic;
82 enum spa_log_level level;
84 bool has_custom_level;
85};
86
87struct spa_log_methods {
88#define SPA_VERSION_LOG_METHODS 1
89 uint32_t version;
105 void (*log) (void *object,
106 enum spa_log_level level,
107 const char *file,
108 int line,
109 const char *func,
110 const char *fmt, ...) SPA_PRINTF_FUNC(6, 7);
111
127 void (*logv) (void *object,
128 enum spa_log_level level,
129 const char *file,
130 int line,
131 const char *func,
132 const char *fmt,
133 va_list args) SPA_PRINTF_FUNC(6, 0);
151 void (*logt) (void *object,
152 enum spa_log_level level,
153 const struct spa_log_topic *topic,
154 const char *file,
155 int line,
156 const char *func,
157 const char *fmt, ...) SPA_PRINTF_FUNC(7, 8);
158
176 void (*logtv) (void *object,
177 enum spa_log_level level,
178 const struct spa_log_topic *topic,
179 const char *file,
180 int line,
181 const char *func,
182 const char *fmt,
183 va_list args) SPA_PRINTF_FUNC(7, 0);
184
190 void (*topic_init) (void *object, struct spa_log_topic *topic);
191};
192
193
194#define SPA_LOG_TOPIC(v, t) \
195 (struct spa_log_topic){ .version = (v), .topic = (t)}
196
197#define spa_log_topic_init(l, topic) \
198do { \
199 struct spa_log *_l = l; \
200 if (SPA_LIKELY(_l)) { \
201 struct spa_interface *_if = &_l->iface; \
202 spa_interface_call(_if, struct spa_log_methods, \
203 topic_init, 1, topic); \
204 } \
205} while(0)
206
207/* Unused, left for backwards compat */
208#define spa_log_level_enabled(l,lev) ((l) && (l)->level >= (lev))
209
210#define spa_log_level_topic_enabled(l,topic,lev) \
211({ \
212 struct spa_log *_log = l; \
213 enum spa_log_level _lev = _log ? _log->level : SPA_LOG_LEVEL_NONE; \
214 struct spa_log_topic *_t = (struct spa_log_topic *)(topic); \
215 if (_t && _t->has_custom_level) \
216 _lev = _t->level; \
217 _lev >= (lev); \
218})
219
220/* Transparently calls to version 0 log if v1 is not supported */
221#define spa_log_logt(l,lev,topic,...) \
222({ \
223 struct spa_log *_l = l; \
224 struct spa_interface *_if = &_l->iface; \
225 if (SPA_UNLIKELY(spa_log_level_topic_enabled(_l, topic, lev))) { \
226 if (!spa_interface_call(_if, \
227 struct spa_log_methods, logt, 1, \
228 lev, topic, \
229 __VA_ARGS__)) \
230 spa_interface_call(_if, \
231 struct spa_log_methods, log, 0, \
232 lev, __VA_ARGS__); \
233 } \
234})
235
236/* Transparently calls to version 0 logv if v1 is not supported */
237#define spa_log_logtv(l,lev,topic,...) \
238({ \
239 struct spa_log *_l = l; \
240 struct spa_interface *_if = &_l->iface; \
241 if (SPA_UNLIKELY(spa_log_level_topic_enabled(_l, topic, lev))) { \
242 if (!spa_interface_call(_if, \
243 struct spa_log_methods, logtv, 1, \
244 lev, topic, \
245 __VA_ARGS__)) \
246 spa_interface_call(_if, \
247 struct spa_log_methods, logv, 0, \
248 lev, __VA_ARGS__); \
249 } \
250})
251
252#define spa_logt_lev(l,lev,t,...) \
253 spa_log_logt(l,lev,t,__FILE__,__LINE__,__func__,__VA_ARGS__)
254
255#define spa_log_lev(l,lev,...) \
256 spa_logt_lev(l,lev,SPA_LOG_TOPIC_DEFAULT,__VA_ARGS__)
257
258#define spa_log_log(l,lev,...) \
259 spa_log_logt(l,lev,SPA_LOG_TOPIC_DEFAULT,__VA_ARGS__)
260
261#define spa_log_logv(l,lev,...) \
262 spa_log_logtv(l,lev,SPA_LOG_TOPIC_DEFAULT,__VA_ARGS__)
263
264#define spa_log_error(l,...) spa_log_lev(l,SPA_LOG_LEVEL_ERROR,__VA_ARGS__)
265#define spa_log_warn(l,...) spa_log_lev(l,SPA_LOG_LEVEL_WARN,__VA_ARGS__)
266#define spa_log_info(l,...) spa_log_lev(l,SPA_LOG_LEVEL_INFO,__VA_ARGS__)
267#define spa_log_debug(l,...) spa_log_lev(l,SPA_LOG_LEVEL_DEBUG,__VA_ARGS__)
268#define spa_log_trace(l,...) spa_log_lev(l,SPA_LOG_LEVEL_TRACE,__VA_ARGS__)
269
270#define spa_logt_error(l,t,...) spa_logt_lev(l,SPA_LOG_LEVEL_ERROR,t,__VA_ARGS__)
271#define spa_logt_warn(l,t,...) spa_logt_lev(l,SPA_LOG_LEVEL_WARN,t,__VA_ARGS__)
272#define spa_logt_info(l,t,...) spa_logt_lev(l,SPA_LOG_LEVEL_INFO,t,__VA_ARGS__)
273#define spa_logt_debug(l,t,...) spa_logt_lev(l,SPA_LOG_LEVEL_DEBUG,t,__VA_ARGS__)
274#define spa_logt_trace(l,t,...) spa_logt_lev(l,SPA_LOG_LEVEL_TRACE,t,__VA_ARGS__)
275
276#ifndef FASTPATH
277#define spa_log_trace_fp(l,...) spa_log_lev(l,SPA_LOG_LEVEL_TRACE,__VA_ARGS__)
278#else
279#define spa_log_trace_fp(l,...)
280#endif
281
282
286#define SPA_KEY_LOG_LEVEL "log.level"
287#define SPA_KEY_LOG_COLORS "log.colors"
288#define SPA_KEY_LOG_FILE "log.file"
290#define SPA_KEY_LOG_TIMESTAMP "log.timestamp"
291#define SPA_KEY_LOG_LINE "log.line"
292#define SPA_KEY_LOG_PATTERNS "log.patterns"
298#ifdef __cplusplus
299} /* extern "C" */
300#endif
301#endif /* SPA_LOG_H */
defs.h
spa/utils/defs.h
spa_log_level
spa_log_level
Definition: spa/include/spa/support/log.h:45
SPA_LOG_LEVEL_INFO
@ SPA_LOG_LEVEL_INFO
Definition: spa/include/spa/support/log.h:49
SPA_LOG_LEVEL_NONE
@ SPA_LOG_LEVEL_NONE
Definition: spa/include/spa/support/log.h:46
SPA_LOG_LEVEL_TRACE
@ SPA_LOG_LEVEL_TRACE
Definition: spa/include/spa/support/log.h:51
SPA_LOG_LEVEL_DEBUG
@ SPA_LOG_LEVEL_DEBUG
Definition: spa/include/spa/support/log.h:50
SPA_LOG_LEVEL_ERROR
@ SPA_LOG_LEVEL_ERROR
Definition: spa/include/spa/support/log.h:47
SPA_LOG_LEVEL_WARN
@ SPA_LOG_LEVEL_WARN
Definition: spa/include/spa/support/log.h:48
SPA_PRINTF_FUNC
#define SPA_PRINTF_FUNC(fmt, arg1)
Definition: defs.h:273
hook.h
spa/utils/hook.h
type.h
spa/utils/type.h
spa_interface
Definition: hook.h:138
spa_log_methods
Definition: spa/include/spa/support/log.h:97
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:162
spa_log_methods::version
uint32_t version
Definition: spa/include/spa/support/log.h:100
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:201
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:138
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:116
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:187
spa_log_topic
Identifier for a topic.
Definition: spa/include/spa/support/log.h:83
spa_log_topic::version
uint32_t version
the version of this topic.
Definition: spa/include/spa/support/log.h:88
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:94
spa_log_topic::level
enum spa_log_level level
Logging level set for this topic.
Definition: spa/include/spa/support/log.h:92
spa_log_topic::topic
const char * topic
The string identifier for the topic.
Definition: spa/include/spa/support/log.h:90
spa_log
Definition: spa/include/spa/support/log.h:61
spa_log::iface
struct spa_interface iface
Definition: spa/include/spa/support/log.h:66
spa_log::level
enum spa_log_level level
Logging level, everything above this level is not logged.
Definition: spa/include/spa/support/log.h:70