2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
4 * 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
6 * gstinfo.c: debugging functions
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 #include "gst_private.h"
28 #ifndef GST_DISABLE_GST_DEBUG
34 #include <string.h> /* G_VA_COPY */
37 #include "gst_private.h"
38 #include "gstelement.h"
40 #include "gstscheduler.h"
41 #include "gst_private.h"
43 GST_DEBUG_CATEGORY_STATIC(GST_CAT_DEBUG);
47 #include <rld_interface.h>
48 typedef struct DL_INFO {
49 const char * dli_fname;
51 const char * dli_sname;
57 #define _RLD_DLADDR 14
58 int dladdr(void *address, Dl_info *dl);
60 int dladdr(void *address, Dl_info *dl)
63 v = _rld_new_interface(_RLD_DLADDR,address,dl);
69 extern gchar *_gst_progname;
71 static void gst_debug_reset_threshold (gpointer category,
73 static void gst_debug_reset_all_thresholds (void);
75 struct _GstDebugMessage {
81 /* list of all name/level pairs from --gst-debug and GST_DEBUG */
82 static GStaticMutex __level_name_mutex = G_STATIC_MUTEX_INIT;
83 static GSList *__level_name = NULL;
89 /* list of all categories */
90 static GStaticMutex __cat_mutex = G_STATIC_MUTEX_INIT;
91 static GSList *__categories = NULL;
93 /* all registered debug handlers */
98 static GStaticMutex __log_func_mutex = G_STATIC_MUTEX_INIT;
99 static GSList *__log_functions = NULL;
101 static GstAtomicInt __default_level;
102 static GstAtomicInt __use_color;
103 gboolean __gst_debug_enabled = TRUE;
106 GstDebugCategory *GST_CAT_DEFAULT = NULL;
108 GstDebugCategory *GST_CAT_GST_INIT = NULL;
109 GstDebugCategory *GST_CAT_COTHREADS = NULL;
110 GstDebugCategory *GST_CAT_COTHREAD_SWITCH = NULL;
111 GstDebugCategory *GST_CAT_AUTOPLUG = NULL;
112 GstDebugCategory *GST_CAT_AUTOPLUG_ATTEMPT = NULL;
113 GstDebugCategory *GST_CAT_PARENTAGE = NULL;
114 GstDebugCategory *GST_CAT_STATES = NULL;
115 GstDebugCategory *GST_CAT_PLANNING = NULL;
116 GstDebugCategory *GST_CAT_SCHEDULING = NULL;
117 GstDebugCategory *GST_CAT_DATAFLOW = NULL;
118 GstDebugCategory *GST_CAT_BUFFER = NULL;
119 GstDebugCategory *GST_CAT_CAPS = NULL;
120 GstDebugCategory *GST_CAT_CLOCK = NULL;
121 GstDebugCategory *GST_CAT_ELEMENT_PADS = NULL;
122 GstDebugCategory *GST_CAT_PADS = NULL;
123 GstDebugCategory *GST_CAT_PIPELINE = NULL;
124 GstDebugCategory *GST_CAT_PLUGIN_LOADING = NULL;
125 GstDebugCategory *GST_CAT_PLUGIN_INFO = NULL;
126 GstDebugCategory *GST_CAT_PROPERTIES = NULL;
127 GstDebugCategory *GST_CAT_THREAD = NULL;
128 GstDebugCategory *GST_CAT_TYPES = NULL;
129 GstDebugCategory *GST_CAT_XML = NULL;
130 GstDebugCategory *GST_CAT_NEGOTIATION = NULL;
131 GstDebugCategory *GST_CAT_REFCOUNTING = NULL;
132 GstDebugCategory *GST_CAT_ERROR_SYSTEM = NULL;
133 GstDebugCategory *GST_CAT_EVENT = NULL;
134 GstDebugCategory *GST_CAT_PARAMS = NULL;
135 GstDebugCategory *GST_CAT_CALL_TRACE = NULL;
136 GstDebugCategory *GST_CAT_SEEK = NULL;
141 * Initializes the debugging system.
142 * Normally you don't want to call this, because gst_init does it for you.
144 void _gst_debug_init (void)
146 gst_atomic_int_init (&__default_level, GST_LEVEL_DEFAULT);
147 gst_atomic_int_init (&__use_color, 1);
149 /* do NOT use a single debug function before this line has been run */
150 GST_CAT_DEFAULT = _gst_debug_category_new ("default",
153 GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG",
154 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW,
155 "debugging subsystem");
157 gst_debug_add_log_function (gst_debug_log_default, NULL);
159 /* FIXME: add descriptions here */
160 GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT",
161 GST_DEBUG_BOLD | GST_DEBUG_FG_RED,
163 GST_CAT_COTHREADS = _gst_debug_category_new ("GST_COTHREADS",
164 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN,
166 GST_CAT_COTHREAD_SWITCH = _gst_debug_category_new ("GST_COTHREAD_SWITCH",
167 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_GREEN,
169 GST_CAT_AUTOPLUG = _gst_debug_category_new ("GST_AUTOPLUG",
170 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE,
172 GST_CAT_AUTOPLUG_ATTEMPT = _gst_debug_category_new ("GST_AUTOPLUG_ATTEMPT",
173 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN | GST_DEBUG_BG_BLUE,
175 GST_CAT_PARENTAGE = _gst_debug_category_new ("GST_PARENTAGE",
176 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
178 GST_CAT_STATES = _gst_debug_category_new ("GST_STATES",
179 GST_DEBUG_BOLD | GST_DEBUG_FG_RED,
181 GST_CAT_PLANNING = _gst_debug_category_new ("GST_PLANNING",
182 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA,
184 GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING",
185 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA,
187 GST_CAT_DATAFLOW = _gst_debug_category_new ("GST_DATAFLOW",
188 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN,
190 GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER",
191 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN,
193 GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS",
194 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE,
196 GST_CAT_CLOCK = _gst_debug_category_new ("GST_CLOCK",
197 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW,
199 GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS",
200 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
202 GST_CAT_PADS = _gst_debug_category_new ("GST_PADS",
203 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
205 GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE",
206 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
208 GST_CAT_PLUGIN_LOADING = _gst_debug_category_new ("GST_PLUGIN_LOADING",
209 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN,
211 GST_CAT_PLUGIN_INFO = _gst_debug_category_new ("GST_PLUGIN_INFO",
212 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN,
214 GST_CAT_PROPERTIES = _gst_debug_category_new ("GST_PROPERTIES",
215 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLUE,
217 GST_CAT_THREAD = _gst_debug_category_new ("GST_THREAD",
218 GST_DEBUG_BOLD | GST_DEBUG_FG_RED,
220 GST_CAT_TYPES = _gst_debug_category_new ("GST_TYPES",
221 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
223 GST_CAT_XML = _gst_debug_category_new ("GST_XML",
224 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
226 GST_CAT_NEGOTIATION = _gst_debug_category_new ("GST_NEGOTIATION",
227 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE,
229 GST_CAT_REFCOUNTING = _gst_debug_category_new ("GST_REFCOUNTING",
230 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE | GST_DEBUG_BG_GREEN,
232 GST_CAT_ERROR_SYSTEM = _gst_debug_category_new ("GST_ERROR_SYSTEM",
233 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_WHITE,
236 GST_CAT_EVENT = _gst_debug_category_new ("GST_EVENT",
237 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
239 GST_CAT_PARAMS = _gst_debug_category_new ("GST_PARAMS",
240 GST_DEBUG_BOLD | GST_DEBUG_FG_BLACK | GST_DEBUG_BG_YELLOW,
242 GST_CAT_CALL_TRACE = _gst_debug_category_new ("GST_CALL_TRACE",
245 GST_CAT_SEEK = _gst_debug_category_new ("GST_SEEK",
247 "plugins reacting to seek events");
250 /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */
251 #define GST_CAT_DEFAULT GST_CAT_DEBUG
255 * @category: category to log
256 * @level: level of the message is in
257 * @file: the file that emitted the message, usually the __FILE__ identifier
258 * @function: the function that emitted the message
259 * @line: the line from that the message was emitted, usually __LINE__
260 * @object: the object this message relates to or NULL if none
261 * @format: a printf style format string
262 * @...: optional arguments for the format
264 * Logs the given message using the currently registered debugging handlers.
266 void gst_debug_log (GstDebugCategory *category, GstDebugLevel level,
267 const gchar *file, const gchar *function, gint line,
268 GObject *object, const gchar *format, ...)
272 va_start (var_args, format);
273 gst_debug_log_valist (category, level, file, function, line, object, format, var_args);
277 * gst_debug_log_valist:
278 * @category: category to log
279 * @level: level of the message is in
280 * @file: the file that emitted the message, usually the __FILE__ identifier
281 * @function: the function that emitted the message
282 * @line: the line from that the message was emitted, usually __LINE__
283 * @object: the object this message relates to or NULL if none
284 * @format: a printf style format string
285 * @args: optional arguments for the format
287 * Logs the given message using the currently registered debugging handlers.
289 void gst_debug_log_valist (GstDebugCategory *category, GstDebugLevel level,
290 const gchar *file, const gchar *function, gint line,
291 GObject *object, const gchar *format, va_list args)
293 GstDebugMessage message;
297 g_return_if_fail (category != NULL);
298 g_return_if_fail (file != NULL);
299 g_return_if_fail (function != NULL);
300 g_return_if_fail (format != NULL);
302 message.message = NULL;
303 message.format = format;
304 G_VA_COPY (message.arguments, args);
306 handler = __log_functions;
308 entry = handler->data;
309 handler = g_slist_next (handler);
310 entry->func (category, level, file, function, line, object, &message, entry->user_data);
312 g_free (message.message);
313 va_end (message.arguments);
316 * gst_debug_message_get:
317 * @message: a debug message
319 * Gets the string representation of a GstDebugMessage. This function is used
320 * in debug handlers to extract the message.
323 gst_debug_message_get (GstDebugMessage *message)
325 if (message->message == NULL) {
326 message->message = g_strdup_vprintf (message->format, message->arguments);
328 return message->message;
332 * gst_debug_construct_term_color:
333 * @colorinfo: the color info
335 * Constructs a string that can be used for getting the desired color in color
337 * You need to free the string after use.
339 * Returns: a string containing the color definition
342 gst_debug_construct_term_color (guint colorinfo)
347 color = g_string_new ("\033[00");
349 if (colorinfo & GST_DEBUG_BOLD) {
350 g_string_append (color, ";01");
352 if (colorinfo & GST_DEBUG_UNDERLINE) {
353 g_string_append (color, ";04");
355 if (colorinfo & GST_DEBUG_FG_MASK) {
356 g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK);
358 if (colorinfo & GST_DEBUG_BG_MASK) {
359 g_string_append_printf (color, ";4%1d", (colorinfo & GST_DEBUG_BG_MASK) >> 4);
361 g_string_append (color, "m");
364 g_string_free (color, FALSE);
368 * gst_debug_log_default:
369 * @category: category to log
370 * @level: level of the message
371 * @file: the file that emitted the message, usually the __FILE__ identifier
372 * @function: the function that emitted the message
373 * @line: the line from that the message was emitted, usually __LINE__
374 * @message: the actual message
375 * @object: the object this message relates to or NULL if none
376 * @unused: an unused variable, reserved for some user_data.
378 * The default logging handler used by GStreamer. Logging functions get called
379 * whenever a macro like GST_DEBUG or similar is used. This function outputs the
380 * message and additional info using the glib error handler.
381 * You can add other handlers by using #gst_debug_add_log_function.
382 * And you can remove this handler by calling
383 * gst_debug_remove_log_function (gst_debug_log_default);
386 gst_debug_log_default (GstDebugCategory *category, GstDebugLevel level,
387 const gchar *file, const gchar *function, gint line,
388 GObject *object, GstDebugMessage *message, gpointer unused)
396 if (level > gst_debug_category_get_threshold (category))
402 if (gst_debug_is_colored ()) {
403 color = gst_debug_construct_term_color (gst_debug_category_get_color (category));
405 pidcolor = g_strdup_printf ("\033[3%1dm", pid % 6 + 31);
407 color = g_strdup ("");
409 pidcolor = g_strdup ("");
411 /* nicely printed object */
412 if (object == NULL) {
414 } else if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
415 obj = g_strdup_printf (" [%s:%s]", GST_DEBUG_PAD_NAME (object));
416 } else if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
417 obj = g_strdup_printf (" [%s]", GST_OBJECT_NAME (object));
419 obj = g_strdup_printf (" [%s@%p]", G_OBJECT_TYPE_NAME(object), object);
422 g_printerr ("%s %s%15s%s(%s%5d%s) %s%s(%d):%s:%s%s %s\n",
423 gst_debug_level_get_name (level),
424 color, gst_debug_category_get_name (category), clear,
425 pidcolor, pid, clear,
426 color, file, line, function, obj, clear,
427 gst_debug_message_get (message));
434 * gst_debug_level_get_name:
435 * @level: the level to get the name for
437 * Get the string trepresentation of a debugging level
442 gst_debug_level_get_name (GstDebugLevel level)
445 case GST_LEVEL_NONE: return "";
446 case GST_LEVEL_ERROR: return "ERROR";
447 case GST_LEVEL_WARNING: return "WARN ";
448 case GST_LEVEL_INFO: return "INFO ";
449 case GST_LEVEL_DEBUG: return "DEBUG";
450 case GST_LEVEL_LOG: return "LOG ";
452 g_warning ("invalid level specified for gst_debug_level_get_name");
457 * gst_debug_add_log_function:
458 * @func: the function to use
461 * Adds the logging function to the list of logging functions.
462 * Be sure to use G_GNUC_NO_INSTRUMENT on that function, it is needed.
465 gst_debug_add_log_function (GstLogFunction func, gpointer data)
470 g_return_if_fail (func != NULL);
472 entry = g_new (LogFuncEntry, 1);
474 entry->user_data = data;
475 /* FIXME: we leak the old list here - other threads might access it right now
476 * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv,
477 * but that is waaay costly.
478 * It'd probably be clever to use some kind of RCU here, but I don't know
479 * anything about that.
481 g_static_mutex_lock (&__log_func_mutex);
482 list = g_slist_copy (__log_functions);
483 __log_functions = g_slist_prepend (list, entry);
484 g_static_mutex_unlock (&__log_func_mutex);
486 GST_DEBUG ("prepended log function %p (user data %p) to log functions",
490 gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func)
492 gpointer entryfunc = ((LogFuncEntry *) entry)->func;
494 return (entryfunc < func) ? -1 : (entryfunc > func) ? 1 : 0;
497 gst_debug_compare_log_function_by_data (gconstpointer entry, gconstpointer data)
499 gpointer entrydata = ((LogFuncEntry *) entry)->user_data;
501 return (entrydata < data) ? -1 : (entrydata > data) ? 1 : 0;
504 gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data)
509 g_static_mutex_lock (&__log_func_mutex);
510 new = __log_functions;
511 while ((found = g_slist_find_custom (new, data, func))) {
512 if (new == __log_functions) {
513 new = g_slist_copy (new);
516 g_free (found->data);
517 new = g_slist_delete_link (new, found);
520 /* FIXME: We leak the old list here. See _add_log_function for why. */
521 __log_functions = new;
522 g_static_mutex_unlock (&__log_func_mutex);
527 * gst_debug_remove_log_function:
528 * @func: the log function to remove
530 * Removes all registrered instances of the given logging functions.
532 * Returns: How many instances of the function were removed
535 gst_debug_remove_log_function (GstLogFunction func)
539 g_return_val_if_fail (func != NULL, 0);
541 removals = gst_debug_remove_with_compare_func (gst_debug_compare_log_function_by_func, func);
542 GST_DEBUG ("removed log function %p %d times from log function list",
548 * gst_debug_remove_log_function_by_data:
549 * @data: user data of the log function to remove
551 * Removes all registrered instances of log functions with the given user data.
553 * Returns: How many instances of the function were removed
556 gst_debug_remove_log_function_by_data (gpointer data)
560 removals = gst_debug_remove_with_compare_func (gst_debug_compare_log_function_by_data, data);
561 GST_DEBUG ("removed %d log functions with user data %p from log function list",
567 * gst_debug_set_colored:
568 * @colored: Whether to use colored output or not
570 * Sets or unsets the use of coloured debugging output.
573 gst_debug_set_colored (gboolean colored)
575 gst_atomic_int_set (&__use_color, colored ? 1 : 0);
578 * gst_debug_is_colored:
580 * Checks if the debugging output should be colored.
582 * Returns: TRUE, if the debug output should be colored.
585 gst_debug_is_colored (void)
587 return gst_atomic_int_read (&__use_color) == 0 ? FALSE : TRUE;
590 * gst_debug_set_active:
591 * @active: Whether to use debugging output or not
593 * If activated, debugging messages are sent to the debugging
595 * It makes sense to deactivate it for speed issues.
596 * <note><para>This function is not threadsafe. It makes sense to only call it
597 * during initialization.</para></note>
600 gst_debug_set_active (gboolean active)
602 __gst_debug_enabled = active;
605 * gst_debug_is_active:
607 * Checks if debugging output is activated.
609 * Returns: TRUE, if debugging is activated
612 gst_debug_is_active (void)
614 return __gst_debug_enabled;
617 * gst_debug_set_default_threshold:
618 * @level: level to set
620 * Sets the default threshold to the given level and updates all categories to
621 * use this threshold.
624 gst_debug_set_default_threshold (GstDebugLevel level)
626 gst_atomic_int_set (&__default_level, level);
627 gst_debug_reset_all_thresholds ();
630 * gst_debug_get_default_threshold:
632 * Returns the default threshold that is used for new categories.
634 * Returns: the default threshold level
637 gst_debug_get_default_threshold (void)
639 return (GstDebugLevel) gst_atomic_int_read (&__default_level);
642 gst_debug_reset_threshold (gpointer category, gpointer unused)
644 GstDebugCategory *cat = (GstDebugCategory *) category;
647 g_static_mutex_lock (&__level_name_mutex);
650 LevelNameEntry *entry = walk->data;
651 walk = g_slist_next (walk);
652 if (g_pattern_match_string (entry->pat, cat->name)) {
653 GST_LOG ("category %s matches pattern %p - gets set to level %d",
654 cat->name, entry->pat, entry->level);
655 gst_debug_category_set_threshold (cat, entry->level);
659 gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
662 g_static_mutex_unlock (&__level_name_mutex);
665 gst_debug_reset_all_thresholds (void)
667 g_static_mutex_lock (&__cat_mutex);
668 g_slist_foreach (__categories, gst_debug_reset_threshold, NULL);
669 g_static_mutex_unlock (&__cat_mutex);
672 for_each_threshold_by_entry (gpointer data, gpointer user_data)
674 GstDebugCategory *cat = (GstDebugCategory *) data;
675 LevelNameEntry *entry = (LevelNameEntry *) user_data;
677 if (g_pattern_match_string (entry->pat, cat->name)) {
678 GST_LOG ("category %s matches pattern %p - gets set to level %d",
679 cat->name, entry->pat, entry->level);
680 gst_debug_category_set_threshold (cat, entry->level);
684 * gst_debug_set_threshold_for_name:
685 * @name: name of the categories to set
686 * @level: level to set them to
688 * Sets all categories which match the gven glob style pattern to the given
692 gst_debug_set_threshold_for_name (const gchar *name, GstDebugLevel level)
695 LevelNameEntry *entry;
697 g_return_if_fail (name != NULL);
699 pat = g_pattern_spec_new (name);
700 entry = g_new (LevelNameEntry, 1);
702 entry->level = level;
703 g_static_mutex_lock (&__level_name_mutex);
704 __level_name = g_slist_prepend (__level_name, entry);
705 g_static_mutex_unlock (&__level_name_mutex);
706 g_static_mutex_lock (&__cat_mutex);
707 g_slist_foreach (__categories, for_each_threshold_by_entry, entry);
708 g_static_mutex_unlock (&__cat_mutex);
711 * gst_debug_unset_threshold_for_name:
712 * @name: name of the categories to set
714 * Resets all categories with the given name back to the default level.
717 gst_debug_unset_threshold_for_name (const gchar *name)
722 g_return_if_fail (name != NULL);
724 pat = g_pattern_spec_new (name);
725 g_static_mutex_lock (&__level_name_mutex);
727 /* improve this if you want, it's mighty slow */
729 LevelNameEntry *entry = walk->data;
730 if (g_pattern_spec_equal (entry->pat, pat)) {
731 __level_name = g_slist_remove_link (__level_name, walk);
732 g_pattern_spec_free (entry->pat);
734 g_slist_free_1 (walk);
738 g_static_mutex_unlock (&__level_name_mutex);
739 g_pattern_spec_free (pat);
740 gst_debug_reset_all_thresholds ();
743 _gst_debug_category_new (gchar *name, guint color, gchar *description)
745 GstDebugCategory *cat;
747 g_return_val_if_fail (name != NULL, NULL);
749 cat = g_new (GstDebugCategory, 1);
750 cat->name = g_strdup (name);
752 if (description != NULL) {
753 cat->description = g_strdup (description);
755 cat->description = g_strdup ("no description");
757 cat->threshold = g_new (GstAtomicInt, 1);
758 gst_atomic_int_init (cat->threshold, 0);
759 gst_debug_reset_threshold (cat, NULL);
761 /* add to category list */
762 g_static_mutex_lock (&__cat_mutex);
763 __categories = g_slist_prepend (__categories, cat);
764 g_static_mutex_unlock (&__cat_mutex);
769 * gst_debug_category_free:
770 * @category: #GstDebugCategory to free.
772 * Removes and frees the category and all associated resources.
775 gst_debug_category_free (GstDebugCategory *category)
777 if (category == NULL) return;
779 /* remove from category list */
780 g_static_mutex_lock (&__cat_mutex);
781 __categories = g_slist_remove (__categories, category);
782 g_static_mutex_unlock (&__cat_mutex);
784 g_free ((gpointer) category->name);
785 g_free ((gpointer) category->description);
786 gst_atomic_int_destroy (category->threshold);
787 g_free (category->threshold);
792 * gst_debug_category_set_threshold:
793 * @category: a #GstDebugCategory to set threshold of.
794 * @level: the #GstDebugLevel threshold to set.
796 * Sets the threshold of the category to the given level. Debug information will
797 * only be output if the threshold is lower or equal to the level of the
800 * Do not use this function in production code, because other functions may
801 * change the threshold of categories as side effect. It is however a nice
802 * function to use when debugging (even from gdb).
806 gst_debug_category_set_threshold (GstDebugCategory *category, GstDebugLevel level)
808 g_return_if_fail (category != NULL);
810 gst_atomic_int_set (category->threshold, level);
814 * gst_debug_category_reset_threshold:
815 * @category: a #GstDebugCategory to reset threshold of.
817 * Resets the threshold of the category to the default level. Debug information
818 * will only be output if the threshold is lower or equal to the level of the
820 * Use this function to set the threshold back to where it was after using
821 * gst_debug_category_set_threshold().
824 gst_debug_category_reset_threshold (GstDebugCategory *category)
826 gst_debug_reset_threshold (category, NULL);
830 * gst_debug_category_get_threshold:
831 * @category: a #GstDebugCategory to get threshold of.
833 * Returns the threshold of a #GstCategory.
835 * Returns: the #GstDebugLevel that is used as threshold.
838 gst_debug_category_get_threshold (GstDebugCategory *category)
840 return gst_atomic_int_read (category->threshold);
844 * gst_debug_category_get_name:
845 * @category: a #GstDebugCategory to get name of.
847 * Returns the name of a debug category.
849 * Returns: the name of the category.
852 gst_debug_category_get_name (GstDebugCategory *category)
854 return category->name;
858 * gst_debug_category_get_color:
859 * @category: a #GstDebugCategory to get the color of.
861 * Returns the color of a debug category used when printing output in this
864 * Returns: the color of the category.
867 gst_debug_category_get_color (GstDebugCategory *category)
869 return category->color;
873 * gst_debug_category_get_description:
874 * @category: a #GstDebugCategory to get the description of.
876 * Returns the description of a debug category.
878 * Returns: the description of the category.
881 gst_debug_category_get_description (GstDebugCategory *category)
883 return category->description;
886 * gst_debug_get_all_categories:
888 * Returns a snapshot of a all categories that are currently in use . This list
889 * may change anytime.
890 * The caller has to free the list after use.
891 * <emphasis>This function is not threadsafe, so only use it while only the
892 * main thread is running.</emphasis>
894 * Returns: the list of categories
897 gst_debug_get_all_categories (void)
901 g_static_mutex_lock (&__cat_mutex);
902 ret = g_slist_copy (__categories);
903 g_static_mutex_unlock (&__cat_mutex);
908 /*** FUNCTION POINTERS ********************************************************/
910 GHashTable *__gst_function_pointers = NULL;
911 const gchar *_gst_debug_nameof_funcptr (void *ptr) G_GNUC_NO_INSTRUMENT;
913 /* This function MUST NOT return NULL */
915 _gst_debug_nameof_funcptr (void *ptr)
922 if (__gst_function_pointers && (ptrname = g_hash_table_lookup(__gst_function_pointers,ptr))) {
925 /* we need to create an entry in the hash table for this one so we don't leak
928 if (dladdr(ptr,&dlinfo) && dlinfo.dli_sname) {
929 gchar *name = g_strdup (dlinfo.dli_sname);
930 _gst_debug_register_funcptr (ptr, name);
935 gchar *name = g_strdup_printf ("%p", ptr);
936 _gst_debug_register_funcptr (ptr, name);
942 _gst_debug_register_funcptr (void *ptr, gchar *ptrname)
944 if (!__gst_function_pointers)
945 __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal);
946 if (!g_hash_table_lookup (__gst_function_pointers, ptr))
947 g_hash_table_insert (__gst_function_pointers, ptr, ptrname);
952 #endif /* GST_DISABLE_GST_DEBUG */
954 #ifdef GST_ENABLE_FUNC_INSTRUMENTATION
955 /* FIXME make this thread specific */
956 static GSList *stack_trace = NULL;
958 void __cyg_profile_func_enter(void *this_fn,void *call_site) G_GNUC_NO_INSTRUMENT;
959 void __cyg_profile_func_enter(void *this_fn,void *call_site)
961 gchar *name = _gst_debug_nameof_funcptr (this_fn);
962 gchar *site = _gst_debug_nameof_funcptr (call_site);
964 GST_CAT_DEBUG(GST_CAT_CALL_TRACE, "entering function %s from %s", name, site);
965 stack_trace = g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)", this_fn, name, call_site, site));
971 void __cyg_profile_func_exit(void *this_fn,void *call_site) G_GNUC_NO_INSTRUMENT;
972 void __cyg_profile_func_exit(void *this_fn,void *call_site)
974 gchar *name = _gst_debug_nameof_funcptr (this_fn);
976 GST_CAT_DEBUG(GST_CAT_CALL_TRACE, "leaving function %s", name);
977 g_free (stack_trace->data);
978 stack_trace = g_slist_delete_link (stack_trace, stack_trace);
984 gst_debug_print_stack_trace (void)
986 GSList *walk = stack_trace;
990 walk = g_slist_next (walk);
993 gchar *name = (gchar *) walk->data;
995 g_print ("#%-2d %s\n", count++, name);
997 walk = g_slist_next (walk);
1002 gst_debug_print_stack_trace (void)
1004 /* nothing because it's compiled out */
1007 #endif /* GST_ENABLE_FUNC_INTSTRUMENTATION */