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_EVENT = NULL;
133 GstDebugCategory *GST_CAT_PARAMS = NULL;
134 GstDebugCategory *GST_CAT_CALL_TRACE = NULL;
135 GstDebugCategory *GST_CAT_SEEK = NULL;
140 * Initializes the debugging system.
141 * Normally you don't want to call this, because gst_init does it for you.
143 void _gst_debug_init (void)
145 gst_atomic_int_init (&__default_level, GST_LEVEL_DEFAULT);
146 gst_atomic_int_init (&__use_color, 1);
148 /* do NOT use a single debug function before this line has been run */
149 GST_CAT_DEFAULT = _gst_debug_category_new ("default",
152 GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG",
153 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW,
154 "debugging subsystem");
156 gst_debug_add_log_function (gst_debug_log_default, NULL);
158 /* FIXME: add descriptions here */
159 GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT",
160 GST_DEBUG_BOLD | GST_DEBUG_FG_RED,
162 GST_CAT_COTHREADS = _gst_debug_category_new ("GST_COTHREADS",
163 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN,
165 GST_CAT_COTHREAD_SWITCH = _gst_debug_category_new ("GST_COTHREAD_SWITCH",
166 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_GREEN,
168 GST_CAT_AUTOPLUG = _gst_debug_category_new ("GST_AUTOPLUG",
169 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE,
171 GST_CAT_AUTOPLUG_ATTEMPT = _gst_debug_category_new ("GST_AUTOPLUG_ATTEMPT",
172 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN | GST_DEBUG_BG_BLUE,
174 GST_CAT_PARENTAGE = _gst_debug_category_new ("GST_PARENTAGE",
175 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
177 GST_CAT_STATES = _gst_debug_category_new ("GST_STATES",
178 GST_DEBUG_BOLD | GST_DEBUG_FG_RED,
180 GST_CAT_PLANNING = _gst_debug_category_new ("GST_PLANNING",
181 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA,
183 GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING",
184 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA,
186 GST_CAT_DATAFLOW = _gst_debug_category_new ("GST_DATAFLOW",
187 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN,
189 GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER",
190 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN,
192 GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS",
193 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE,
195 GST_CAT_CLOCK = _gst_debug_category_new ("GST_CLOCK",
196 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW,
198 GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS",
199 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
201 GST_CAT_PADS = _gst_debug_category_new ("GST_PADS",
202 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
204 GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE",
205 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
207 GST_CAT_PLUGIN_LOADING = _gst_debug_category_new ("GST_PLUGIN_LOADING",
208 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN,
210 GST_CAT_PLUGIN_INFO = _gst_debug_category_new ("GST_PLUGIN_INFO",
211 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN,
213 GST_CAT_PROPERTIES = _gst_debug_category_new ("GST_PROPERTIES",
214 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLUE,
216 GST_CAT_THREAD = _gst_debug_category_new ("GST_THREAD",
217 GST_DEBUG_BOLD | GST_DEBUG_FG_RED,
219 GST_CAT_TYPES = _gst_debug_category_new ("GST_TYPES",
220 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
222 GST_CAT_XML = _gst_debug_category_new ("GST_XML",
223 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
225 GST_CAT_NEGOTIATION = _gst_debug_category_new ("GST_NEGOTIATION",
226 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE,
228 GST_CAT_REFCOUNTING = _gst_debug_category_new ("GST_REFCOUNTING",
229 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE | GST_DEBUG_BG_GREEN,
231 GST_CAT_EVENT = _gst_debug_category_new ("GST_EVENT",
232 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
234 GST_CAT_PARAMS = _gst_debug_category_new ("GST_PARAMS",
235 GST_DEBUG_BOLD | GST_DEBUG_FG_BLACK | GST_DEBUG_BG_YELLOW,
237 GST_CAT_CALL_TRACE = _gst_debug_category_new ("GST_CALL_TRACE",
240 GST_CAT_SEEK = _gst_debug_category_new ("GST_SEEK",
242 "plugins reacting to seek events");
245 /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */
246 #define GST_CAT_DEFAULT GST_CAT_DEBUG
250 * @category: category to log
251 * @level: level of the message is in
252 * @file: the file that emitted the message, usually the __FILE__ identifier
253 * @function: the function that emitted the message
254 * @line: the line from that the message was emitted, usually __LINE__
255 * @object: the object this message relates to or NULL if none
256 * @format: a printf style format string
257 * @...: optional arguments for the format
259 * Logs the given message using the currently registered debugging handlers.
261 void gst_debug_log (GstDebugCategory *category, GstDebugLevel level,
262 const gchar *file, const gchar *function, gint line,
263 GObject *object, const gchar *format, ...)
267 va_start (var_args, format);
268 gst_debug_log_valist (category, level, file, function, line, object, format, var_args);
272 * gst_debug_log_valist:
273 * @category: category to log
274 * @level: level of the message is in
275 * @file: the file that emitted the message, usually the __FILE__ identifier
276 * @function: the function that emitted the message
277 * @line: the line from that the message was emitted, usually __LINE__
278 * @object: the object this message relates to or NULL if none
279 * @format: a printf style format string
280 * @args: optional arguments for the format
282 * Logs the given message using the currently registered debugging handlers.
284 void gst_debug_log_valist (GstDebugCategory *category, GstDebugLevel level,
285 const gchar *file, const gchar *function, gint line,
286 GObject *object, const gchar *format, va_list args)
288 GstDebugMessage message;
292 g_return_if_fail (category != NULL);
293 g_return_if_fail (file != NULL);
294 g_return_if_fail (function != NULL);
295 g_return_if_fail (format != NULL);
297 message.message = NULL;
298 message.format = format;
299 G_VA_COPY (message.arguments, args);
301 handler = __log_functions;
303 entry = handler->data;
304 handler = g_slist_next (handler);
305 entry->func (category, level, file, function, line, object, &message, entry->user_data);
307 g_free (message.message);
310 * gst_debug_message_get:
311 * @message: a debug message
313 * Gets the string representation of a GstDebugMessage. This function is used
314 * in debug handlers to extract the message.
317 gst_debug_message_get (GstDebugMessage *message)
319 if (message->message == NULL) {
320 message->message = g_strdup_vprintf (message->format, message->arguments);
322 return message->message;
326 * gst_debug_construct_term_color:
327 * @colorinfo: the color info
329 * Constructs a string that can be used for getting the desired color in color
331 * You need to free the string after use.
333 * Returns: a string containing the color definition
336 gst_debug_construct_term_color (guint colorinfo)
341 color = g_string_new ("\033[00");
343 if (colorinfo & GST_DEBUG_BOLD) {
344 g_string_append (color, ";01");
346 if (colorinfo & GST_DEBUG_UNDERLINE) {
347 g_string_append (color, ";04");
349 if (colorinfo & GST_DEBUG_FG_MASK) {
350 g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK);
352 if (colorinfo & GST_DEBUG_BG_MASK) {
353 g_string_append_printf (color, ";4%1d", (colorinfo & GST_DEBUG_BG_MASK) >> 4);
355 g_string_append (color, "m");
358 g_string_free (color, FALSE);
362 * gst_debug_log_default:
363 * @category: category to log
364 * @level: level of the message
365 * @file: the file that emitted the message, usually the __FILE__ identifier
366 * @function: the function that emitted the message
367 * @line: the line from that the message was emitted, usually __LINE__
368 * @message: the actual message
369 * @object: the object this message relates to or NULL if none
370 * @unused: an unused variable, reserved for some user_data.
372 * The default logging handler used by GStreamer. Logging functions get called
373 * whenever a macro like GST_DEBUG or similar is used. This function outputs the
374 * message and additional info using the glib error handler.
375 * You can add other handlers by using #gst_debug_add_log_function.
376 * And you can remove this handler by calling
377 * gst_debug_remove_log_function (gst_debug_log_default);
380 gst_debug_log_default (GstDebugCategory *category, GstDebugLevel level,
381 const gchar *file, const gchar *function, gint line,
382 GObject *object, GstDebugMessage *message, gpointer unused)
390 if (level > gst_debug_category_get_threshold (category))
396 if (gst_debug_is_colored ()) {
397 color = gst_debug_construct_term_color (gst_debug_category_get_color (category));
399 pidcolor = g_strdup_printf ("\033[3%1dm", pid % 6 + 31);
401 color = g_strdup ("");
403 pidcolor = g_strdup ("");
405 /* nicely printed object */
406 if (object == NULL) {
408 } else if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
409 obj = g_strdup_printf (" [%s:%s]", GST_DEBUG_PAD_NAME (object));
410 } else if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
411 obj = g_strdup_printf (" [%s]", GST_OBJECT_NAME (object));
413 obj = g_strdup_printf (" [%s@%p]", G_OBJECT_TYPE_NAME(object), object);
416 g_printerr ("%s %s%15s%s(%s%5d%s) %s%s(%d):%s:%s%s %s\n",
417 gst_debug_level_get_name (level),
418 color, gst_debug_category_get_name (category), clear,
419 pidcolor, pid, clear,
420 color, file, line, function, obj, clear,
421 gst_debug_message_get (message));
428 * gst_debug_level_get_name:
429 * @level: the level to get the name for
431 * Get the string trepresentation of a debugging level
436 gst_debug_level_get_name (GstDebugLevel level)
439 case GST_LEVEL_NONE: return "";
440 case GST_LEVEL_ERROR: return "ERROR";
441 case GST_LEVEL_WARNING: return "WARN ";
442 case GST_LEVEL_INFO: return "INFO ";
443 case GST_LEVEL_DEBUG: return "DEBUG";
444 case GST_LEVEL_LOG: return "LOG ";
446 g_warning ("invalid level specified for gst_debug_level_get_name");
451 * gst_debug_add_log_function:
452 * @func: the function to use
455 * Adds the logging function to the list of logging functions.
456 * Be sure to use G_GNUC_NO_INSTRUMENT on that function, it is needed.
459 gst_debug_add_log_function (GstLogFunction func, gpointer data)
464 g_return_if_fail (func != NULL);
466 entry = g_new (LogFuncEntry, 1);
468 entry->user_data = data;
469 /* FIXME: we leak the old list here - other threads might access it right now
470 * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv,
471 * but that is waaay costly.
472 * It'd probably be clever to use some kind of RCU here, but I don't know
473 * anything about that.
475 g_static_mutex_lock (&__log_func_mutex);
476 list = g_slist_copy (__log_functions);
477 __log_functions = g_slist_prepend (list, entry);
478 g_static_mutex_unlock (&__log_func_mutex);
480 GST_DEBUG ("prepended log function %p (user data %p) to log functions",
484 gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func)
486 gpointer entryfunc = ((LogFuncEntry *) entry)->func;
488 return (entryfunc < func) ? -1 : (entryfunc > func) ? 1 : 0;
491 gst_debug_compare_log_function_by_data (gconstpointer entry, gconstpointer data)
493 gpointer entrydata = ((LogFuncEntry *) entry)->user_data;
495 return (entrydata < data) ? -1 : (entrydata > data) ? 1 : 0;
498 gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data)
503 g_static_mutex_lock (&__log_func_mutex);
504 new = __log_functions;
505 while ((found = g_slist_find_custom (new, data, func))) {
506 if (new == __log_functions) {
507 new = g_slist_copy (new);
510 g_free (found->data);
511 new = g_slist_delete_link (new, found);
514 /* FIXME: We leak the old list here. See _add_log_function for why. */
515 __log_functions = new;
516 g_static_mutex_unlock (&__log_func_mutex);
521 * gst_debug_remove_log_function:
522 * @func: the log function to remove
524 * Removes all registrered instances of the given logging functions.
526 * Returns: How many instances of the function were removed
529 gst_debug_remove_log_function (GstLogFunction func)
533 g_return_val_if_fail (func != NULL, 0);
535 removals = gst_debug_remove_with_compare_func (gst_debug_compare_log_function_by_func, func);
536 GST_DEBUG ("removed log function %p %d times from log function list",
542 * gst_debug_remove_log_function_by_data:
543 * @data: user data of the log function to remove
545 * Removes all registrered instances of log functions with the given user data.
547 * Returns: How many instances of the function were removed
550 gst_debug_remove_log_function_by_data (gpointer data)
554 removals = gst_debug_remove_with_compare_func (gst_debug_compare_log_function_by_data, data);
555 GST_DEBUG ("removed %d log functions with user data %p from log function list",
561 * gst_debug_set_colored:
562 * @colored: Whether to use colored output or not
564 * Sets or unsets the use of coloured debugging output.
567 gst_debug_set_colored (gboolean colored)
569 gst_atomic_int_set (&__use_color, colored ? 1 : 0);
572 * gst_debug_is_colored:
574 * Checks if the debugging output should be colored.
576 * Returns: TRUE, if the debug output should be colored.
579 gst_debug_is_colored (void)
581 return gst_atomic_int_read (&__use_color) == 0 ? FALSE : TRUE;
584 * gst_debug_set_active:
585 * @active: Whether to use debugging output or not
587 * If activated, debugging messages are sent to the debugging
589 * It makes sense to deactivate it for speed issues.
590 * <note><para>This function is not threadsafe. It makes sense to only call it
591 * during initialization.</para></note>
594 gst_debug_set_active (gboolean active)
596 __gst_debug_enabled = active;
599 * gst_debug_is_active:
601 * Checks if debugging output is activated.
603 * Returns: TRUE, if debugging is activated
606 gst_debug_is_active (void)
608 return __gst_debug_enabled;
611 * gst_debug_set_default_threshold:
612 * @level: level to set
614 * Sets the default threshold to the given level and updates all categories to
615 * use this threshold.
618 gst_debug_set_default_threshold (GstDebugLevel level)
620 gst_atomic_int_set (&__default_level, level);
621 gst_debug_reset_all_thresholds ();
624 * gst_debug_get_default_threshold:
626 * Returns the default threshold that is used for new categories.
628 * Returns: the default threshold level
631 gst_debug_get_default_threshold (void)
633 return (GstDebugLevel) gst_atomic_int_read (&__default_level);
636 gst_debug_reset_threshold (gpointer category, gpointer unused)
638 GstDebugCategory *cat = (GstDebugCategory *) category;
641 g_static_mutex_lock (&__level_name_mutex);
644 LevelNameEntry *entry = walk->data;
645 walk = g_slist_next (walk);
646 if (g_pattern_match_string (entry->pat, cat->name)) {
647 GST_LOG ("category %s matches pattern %p - gets set to level %d",
648 cat->name, entry->pat, entry->level);
649 gst_debug_category_set_threshold (cat, entry->level);
653 gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
656 g_static_mutex_unlock (&__level_name_mutex);
659 gst_debug_reset_all_thresholds (void)
661 g_static_mutex_lock (&__cat_mutex);
662 g_slist_foreach (__categories, gst_debug_reset_threshold, NULL);
663 g_static_mutex_unlock (&__cat_mutex);
666 for_each_threshold_by_entry (gpointer data, gpointer user_data)
668 GstDebugCategory *cat = (GstDebugCategory *) data;
669 LevelNameEntry *entry = (LevelNameEntry *) user_data;
671 if (g_pattern_match_string (entry->pat, cat->name)) {
672 GST_LOG ("category %s matches pattern %p - gets set to level %d",
673 cat->name, entry->pat, entry->level);
674 gst_debug_category_set_threshold (cat, entry->level);
678 * gst_debug_set_threshold_for_name:
679 * @name: name of the categories to set
680 * @level: level to set them to
682 * Sets all categories which match the gven glob style pattern to the given
686 gst_debug_set_threshold_for_name (const gchar *name, GstDebugLevel level)
689 LevelNameEntry *entry;
691 g_return_if_fail (name != NULL);
693 pat = g_pattern_spec_new (name);
694 entry = g_new (LevelNameEntry, 1);
696 entry->level = level;
697 g_static_mutex_lock (&__level_name_mutex);
698 __level_name = g_slist_prepend (__level_name, entry);
699 g_static_mutex_unlock (&__level_name_mutex);
700 g_static_mutex_lock (&__cat_mutex);
701 g_slist_foreach (__categories, for_each_threshold_by_entry, entry);
702 g_static_mutex_unlock (&__cat_mutex);
705 * gst_debug_unset_threshold_for_name:
706 * @name: name of the categories to set
708 * Resets all categories with the given name back to the default level.
711 gst_debug_unset_threshold_for_name (const gchar *name)
716 g_return_if_fail (name != NULL);
718 pat = g_pattern_spec_new (name);
719 g_static_mutex_lock (&__level_name_mutex);
721 /* improve this if you want, it's mighty slow */
723 LevelNameEntry *entry = walk->data;
724 if (g_pattern_spec_equal (entry->pat, pat)) {
725 __level_name = g_slist_remove_link (__level_name, walk);
726 g_pattern_spec_free (entry->pat);
728 g_slist_free_1 (walk);
732 g_static_mutex_unlock (&__level_name_mutex);
733 g_pattern_spec_free (pat);
734 gst_debug_reset_all_thresholds ();
737 _gst_debug_category_new (gchar *name, guint color, gchar *description)
739 GstDebugCategory *cat;
741 g_return_val_if_fail (name != NULL, NULL);
743 cat = g_new (GstDebugCategory, 1);
744 cat->name = g_strdup (name);
746 if (description != NULL) {
747 cat->description = g_strdup (description);
749 cat->description = g_strdup ("no description");
751 cat->threshold = g_new (GstAtomicInt, 1);
752 gst_atomic_int_init (cat->threshold, 0);
753 gst_debug_reset_threshold (cat, NULL);
755 /* add to category list */
756 g_static_mutex_lock (&__cat_mutex);
757 __categories = g_slist_prepend (__categories, cat);
758 g_static_mutex_unlock (&__cat_mutex);
763 * gst_debug_category_free:
764 * @category: #GstDebugCategory to free.
766 * Removes and frees the category and all associated resources.
769 gst_debug_category_free (GstDebugCategory *category)
771 if (category == NULL) return;
773 /* remove from category list */
774 g_static_mutex_lock (&__cat_mutex);
775 __categories = g_slist_remove (__categories, category);
776 g_static_mutex_unlock (&__cat_mutex);
778 g_free ((gpointer) category->name);
779 g_free ((gpointer) category->description);
780 gst_atomic_int_destroy (category->threshold);
781 g_free (category->threshold);
786 * gst_debug_category_set_threshold:
787 * @category: a #GstDebugCategory to set threshold of.
788 * @level: the #GstDebugLevel threshold to set.
790 * Sets the threshold of the category to the given level. Debug information will
791 * only be output if the threshold is lower or equal to the level of the
794 * Do not use this function in production code, because other functions may
795 * change the threshold of categories as side effect. It is however a nice
796 * function to use when debugging (even from gdb).
800 gst_debug_category_set_threshold (GstDebugCategory *category, GstDebugLevel level)
802 g_return_if_fail (category != NULL);
804 gst_atomic_int_set (category->threshold, level);
808 * gst_debug_category_reset_threshold:
809 * @category: a #GstDebugCategory to reset threshold of.
811 * Resets the threshold of the category to the default level. Debug information
812 * will only be output if the threshold is lower or equal to the level of the
814 * Use this function to set the threshold back to where it was after using
815 * gst_debug_category_set_threshold().
818 gst_debug_category_reset_threshold (GstDebugCategory *category)
820 gst_debug_reset_threshold (category, NULL);
824 * gst_debug_category_get_threshold:
825 * @category: a #GstDebugCategory to get threshold of.
827 * Returns the threshold of a #GstCategory.
829 * Returns: the #GstDebugLevel that is used as threshold.
832 gst_debug_category_get_threshold (GstDebugCategory *category)
834 return gst_atomic_int_read (category->threshold);
838 * gst_debug_category_get_name:
839 * @category: a #GstDebugCategory to get name of.
841 * Returns the name of a debug category.
843 * Returns: the name of the category.
846 gst_debug_category_get_name (GstDebugCategory *category)
848 return category->name;
852 * gst_debug_category_get_color:
853 * @category: a #GstDebugCategory to get the color of.
855 * Returns the color of a debug category used when printing output in this
858 * Returns: the color of the category.
861 gst_debug_category_get_color (GstDebugCategory *category)
863 return category->color;
867 * gst_debug_category_get_description:
868 * @category: a #GstDebugCategory to get the description of.
870 * Returns the description of a debug category.
872 * Returns: the description of the category.
875 gst_debug_category_get_description (GstDebugCategory *category)
877 return category->description;
880 * gst_debug_get_all_categories:
882 * Returns a snapshot of a all categories that are currently in use . This list
883 * may change anytime.
884 * The caller has to free the list after use.
885 * <emphasis>This function is not threadsafe, so only use it while only the
886 * main thread is running.</emphasis>
888 * Returns: the list of categories
891 gst_debug_get_all_categories (void)
895 g_static_mutex_lock (&__cat_mutex);
896 ret = g_slist_copy (__categories);
897 g_static_mutex_unlock (&__cat_mutex);
902 /*** FUNCTION POINTERS ********************************************************/
904 GHashTable *__gst_function_pointers = NULL;
905 const gchar *_gst_debug_nameof_funcptr (void *ptr) G_GNUC_NO_INSTRUMENT;
907 /* This function MUST NOT return NULL */
909 _gst_debug_nameof_funcptr (void *ptr)
916 if (__gst_function_pointers && (ptrname = g_hash_table_lookup(__gst_function_pointers,ptr))) {
919 /* we need to create an entry in the hash table for this one so we don't leak
922 if (dladdr(ptr,&dlinfo) && dlinfo.dli_sname) {
923 gchar *name = g_strdup (dlinfo.dli_sname);
924 _gst_debug_register_funcptr (ptr, name);
929 gchar *name = g_strdup_printf ("%p", ptr);
930 _gst_debug_register_funcptr (ptr, name);
936 _gst_debug_register_funcptr (void *ptr, gchar *ptrname)
938 if (!__gst_function_pointers)
939 __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal);
940 if (!g_hash_table_lookup (__gst_function_pointers, ptr))
941 g_hash_table_insert (__gst_function_pointers, ptr, ptrname);
946 #endif /* GST_DISABLE_GST_DEBUG */
948 #ifdef GST_ENABLE_FUNC_INSTRUMENTATION
949 /* FIXME make this thread specific */
950 static GSList *stack_trace = NULL;
952 void __cyg_profile_func_enter(void *this_fn,void *call_site) G_GNUC_NO_INSTRUMENT;
953 void __cyg_profile_func_enter(void *this_fn,void *call_site)
955 gchar *name = _gst_debug_nameof_funcptr (this_fn);
956 gchar *site = _gst_debug_nameof_funcptr (call_site);
958 GST_CAT_DEBUG(GST_CAT_CALL_TRACE, "entering function %s from %s", name, site);
959 stack_trace = g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)", this_fn, name, call_site, site));
965 void __cyg_profile_func_exit(void *this_fn,void *call_site) G_GNUC_NO_INSTRUMENT;
966 void __cyg_profile_func_exit(void *this_fn,void *call_site)
968 gchar *name = _gst_debug_nameof_funcptr (this_fn);
970 GST_CAT_DEBUG(GST_CAT_CALL_TRACE, "leaving function %s", name);
971 g_free (stack_trace->data);
972 stack_trace = g_slist_delete_link (stack_trace, stack_trace);
978 gst_debug_print_stack_trace (void)
980 GSList *walk = stack_trace;
984 walk = g_slist_next (walk);
987 gchar *name = (gchar *) walk->data;
989 g_print ("#%-2d %s\n", count++, name);
991 walk = g_slist_next (walk);
996 gst_debug_print_stack_trace (void)
998 /* nothing because it's compiled out */
1001 #endif /* GST_ENABLE_FUNC_INTSTRUMENTATION */