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
33 #ifdef HAVE_PRINTF_EXTENSION
36 #include <stdio.h> /* fprintf */
38 #include <string.h> /* G_VA_COPY */
41 #include "gst_private.h"
42 #include "gstelement.h"
44 #include "gstscheduler.h"
45 #include "gst_private.h"
47 GST_DEBUG_CATEGORY_STATIC(GST_CAT_DEBUG);
51 #include <rld_interface.h>
52 typedef struct DL_INFO {
53 const char * dli_fname;
55 const char * dli_sname;
61 #define _RLD_DLADDR 14
62 int dladdr(void *address, Dl_info *dl);
64 int dladdr(void *address, Dl_info *dl)
67 v = _rld_new_interface(_RLD_DLADDR,address,dl);
73 extern gchar *_gst_progname;
75 static void gst_debug_reset_threshold (gpointer category,
77 static void gst_debug_reset_all_thresholds (void);
79 #ifdef HAVE_PRINTF_EXTENSION
80 static int _gst_info_printf_extension (FILE *stream, const struct printf_info *info,
81 const void *const *args);
82 static int _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n,
86 struct _GstDebugMessage {
92 /* list of all name/level pairs from --gst-debug and GST_DEBUG */
93 static GStaticMutex __level_name_mutex = G_STATIC_MUTEX_INIT;
94 static GSList *__level_name = NULL;
100 /* list of all categories */
101 static GStaticMutex __cat_mutex = G_STATIC_MUTEX_INIT;
102 static GSList *__categories = NULL;
104 /* all registered debug handlers */
109 static GStaticMutex __log_func_mutex = G_STATIC_MUTEX_INIT;
110 static GSList *__log_functions = NULL;
112 static GstAtomicInt __default_level;
113 static GstAtomicInt __use_color;
114 gboolean __gst_debug_enabled = TRUE;
117 GstDebugCategory *GST_CAT_DEFAULT = NULL;
119 GstDebugCategory *GST_CAT_GST_INIT = NULL;
120 GstDebugCategory *GST_CAT_COTHREADS = NULL;
121 GstDebugCategory *GST_CAT_COTHREAD_SWITCH = NULL;
122 GstDebugCategory *GST_CAT_AUTOPLUG = NULL;
123 GstDebugCategory *GST_CAT_AUTOPLUG_ATTEMPT = NULL;
124 GstDebugCategory *GST_CAT_PARENTAGE = NULL;
125 GstDebugCategory *GST_CAT_STATES = NULL;
126 GstDebugCategory *GST_CAT_PLANNING = NULL;
127 GstDebugCategory *GST_CAT_SCHEDULING = NULL;
128 GstDebugCategory *GST_CAT_DATAFLOW = NULL;
129 GstDebugCategory *GST_CAT_BUFFER = NULL;
130 GstDebugCategory *GST_CAT_CAPS = NULL;
131 GstDebugCategory *GST_CAT_CLOCK = NULL;
132 GstDebugCategory *GST_CAT_ELEMENT_PADS = NULL;
133 GstDebugCategory *GST_CAT_PADS = NULL;
134 GstDebugCategory *GST_CAT_PIPELINE = NULL;
135 GstDebugCategory *GST_CAT_PLUGIN_LOADING = NULL;
136 GstDebugCategory *GST_CAT_PLUGIN_INFO = NULL;
137 GstDebugCategory *GST_CAT_PROPERTIES = NULL;
138 GstDebugCategory *GST_CAT_THREAD = NULL;
139 GstDebugCategory *GST_CAT_TYPES = NULL;
140 GstDebugCategory *GST_CAT_XML = NULL;
141 GstDebugCategory *GST_CAT_NEGOTIATION = NULL;
142 GstDebugCategory *GST_CAT_REFCOUNTING = NULL;
143 GstDebugCategory *GST_CAT_ERROR_SYSTEM = NULL;
144 GstDebugCategory *GST_CAT_EVENT = NULL;
145 GstDebugCategory *GST_CAT_PARAMS = NULL;
146 GstDebugCategory *GST_CAT_CALL_TRACE = NULL;
147 GstDebugCategory *GST_CAT_SEEK = NULL;
152 * Initializes the debugging system.
153 * Normally you don't want to call this, because gst_init does it for you.
155 void _gst_debug_init (void)
157 gst_atomic_int_init (&__default_level, GST_LEVEL_DEFAULT);
158 gst_atomic_int_init (&__use_color, 1);
160 #ifdef HAVE_PRINTF_EXTENSION
161 register_printf_function (GST_PTR_FORMAT[0], _gst_info_printf_extension,
162 _gst_info_printf_extension_arginfo);
165 /* do NOT use a single debug function before this line has been run */
166 GST_CAT_DEFAULT = _gst_debug_category_new ("default",
169 GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG",
170 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW,
171 "debugging subsystem");
173 gst_debug_add_log_function (gst_debug_log_default, NULL);
175 /* FIXME: add descriptions here */
176 GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT",
177 GST_DEBUG_BOLD | GST_DEBUG_FG_RED,
179 GST_CAT_COTHREADS = _gst_debug_category_new ("GST_COTHREADS",
180 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN,
182 GST_CAT_COTHREAD_SWITCH = _gst_debug_category_new ("GST_COTHREAD_SWITCH",
183 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_GREEN,
185 GST_CAT_AUTOPLUG = _gst_debug_category_new ("GST_AUTOPLUG",
186 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE,
188 GST_CAT_AUTOPLUG_ATTEMPT = _gst_debug_category_new ("GST_AUTOPLUG_ATTEMPT",
189 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN | GST_DEBUG_BG_BLUE,
191 GST_CAT_PARENTAGE = _gst_debug_category_new ("GST_PARENTAGE",
192 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
194 GST_CAT_STATES = _gst_debug_category_new ("GST_STATES",
195 GST_DEBUG_BOLD | GST_DEBUG_FG_RED,
197 GST_CAT_PLANNING = _gst_debug_category_new ("GST_PLANNING",
198 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA,
200 GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING",
201 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA,
203 GST_CAT_DATAFLOW = _gst_debug_category_new ("GST_DATAFLOW",
204 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN,
206 GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER",
207 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN,
209 GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS",
210 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE,
212 GST_CAT_CLOCK = _gst_debug_category_new ("GST_CLOCK",
213 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW,
215 GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS",
216 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
218 GST_CAT_PADS = _gst_debug_category_new ("GST_PADS",
219 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
221 GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE",
222 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
224 GST_CAT_PLUGIN_LOADING = _gst_debug_category_new ("GST_PLUGIN_LOADING",
225 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN,
227 GST_CAT_PLUGIN_INFO = _gst_debug_category_new ("GST_PLUGIN_INFO",
228 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN,
230 GST_CAT_PROPERTIES = _gst_debug_category_new ("GST_PROPERTIES",
231 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLUE,
233 GST_CAT_THREAD = _gst_debug_category_new ("GST_THREAD",
234 GST_DEBUG_BOLD | GST_DEBUG_FG_RED,
236 GST_CAT_TYPES = _gst_debug_category_new ("GST_TYPES",
237 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
239 GST_CAT_XML = _gst_debug_category_new ("GST_XML",
240 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
242 GST_CAT_NEGOTIATION = _gst_debug_category_new ("GST_NEGOTIATION",
243 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE,
245 GST_CAT_REFCOUNTING = _gst_debug_category_new ("GST_REFCOUNTING",
246 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE | GST_DEBUG_BG_GREEN,
248 GST_CAT_ERROR_SYSTEM = _gst_debug_category_new ("GST_ERROR_SYSTEM",
249 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_WHITE,
252 GST_CAT_EVENT = _gst_debug_category_new ("GST_EVENT",
253 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED,
255 GST_CAT_PARAMS = _gst_debug_category_new ("GST_PARAMS",
256 GST_DEBUG_BOLD | GST_DEBUG_FG_BLACK | GST_DEBUG_BG_YELLOW,
258 GST_CAT_CALL_TRACE = _gst_debug_category_new ("GST_CALL_TRACE",
261 GST_CAT_SEEK = _gst_debug_category_new ("GST_SEEK",
263 "plugins reacting to seek events");
266 /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */
267 #define GST_CAT_DEFAULT GST_CAT_DEBUG
271 * @category: category to log
272 * @level: level of the message is in
273 * @file: the file that emitted the message, usually the __FILE__ identifier
274 * @function: the function that emitted the message
275 * @line: the line from that the message was emitted, usually __LINE__
276 * @object: the object this message relates to or NULL if none
277 * @format: a printf style format string
278 * @...: optional arguments for the format
280 * Logs the given message using the currently registered debugging handlers.
282 void gst_debug_log (GstDebugCategory *category, GstDebugLevel level,
283 const gchar *file, const gchar *function, gint line,
284 GObject *object, const gchar *format, ...)
288 va_start (var_args, format);
289 gst_debug_log_valist (category, level, file, function, line, object, format, var_args);
293 * gst_debug_log_valist:
294 * @category: category to log
295 * @level: level of the message is in
296 * @file: the file that emitted the message, usually the __FILE__ identifier
297 * @function: the function that emitted the message
298 * @line: the line from that the message was emitted, usually __LINE__
299 * @object: the object this message relates to or NULL if none
300 * @format: a printf style format string
301 * @args: optional arguments for the format
303 * Logs the given message using the currently registered debugging handlers.
305 void gst_debug_log_valist (GstDebugCategory *category, GstDebugLevel level,
306 const gchar *file, const gchar *function, gint line,
307 GObject *object, const gchar *format, va_list args)
309 GstDebugMessage message;
313 g_return_if_fail (category != NULL);
314 g_return_if_fail (file != NULL);
315 g_return_if_fail (function != NULL);
316 g_return_if_fail (format != NULL);
318 message.message = NULL;
319 message.format = format;
320 G_VA_COPY (message.arguments, args);
322 handler = __log_functions;
324 entry = handler->data;
325 handler = g_slist_next (handler);
326 entry->func (category, level, file, function, line, object, &message, entry->user_data);
328 g_free (message.message);
329 va_end (message.arguments);
332 * gst_debug_message_get:
333 * @message: a debug message
335 * Gets the string representation of a GstDebugMessage. This function is used
336 * in debug handlers to extract the message.
339 gst_debug_message_get (GstDebugMessage *message)
341 if (message->message == NULL) {
342 message->message = g_strdup_vprintf (message->format, message->arguments);
344 return message->message;
349 gst_debug_print_object (gpointer ptr)
351 GObject *object = (GObject *)ptr;
354 /* This is a cute trick to detect unmapped memory, but is unportable,
355 * slow, screws around with madvise, and not actually that useful. */
359 ret = madvise ((void *)((unsigned long)ptr & (~0xfff)), 4096, 0);
360 if (ret == -1 && errno == ENOMEM) {
361 buffer = g_strdup_printf ("%p (unmapped memory)", ptr);
366 /* nicely printed object */
367 if (object == NULL) {
368 return g_strdup ("(NULL)");
370 if (*(GType *)ptr == GST_TYPE_CAPS) {
371 return gst_caps_to_string ((GstCaps *)ptr);
373 if (*(GType *)ptr == GST_TYPE_STRUCTURE) {
374 return gst_structure_to_string ((GstStructure *)ptr);
377 if (*(guint32 *)ptr == 0xffffffff) {
378 return g_strdup_printf ("<poisoned@%p>", ptr);
381 if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
382 return g_strdup_printf ("<%s:%s>", GST_DEBUG_PAD_NAME (object));
384 if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
385 return g_strdup_printf ("<%s>", GST_OBJECT_NAME (object));
387 if (G_IS_OBJECT (object)) {
388 return g_strdup_printf ("<%s@%p>", G_OBJECT_TYPE_NAME(object), object);
391 return g_strdup_printf ("%p", ptr);
395 * gst_debug_construct_term_color:
396 * @colorinfo: the color info
398 * Constructs a string that can be used for getting the desired color in color
400 * You need to free the string after use.
402 * Returns: a string containing the color definition
405 gst_debug_construct_term_color (guint colorinfo)
410 color = g_string_new ("\033[00");
412 if (colorinfo & GST_DEBUG_BOLD) {
413 g_string_append (color, ";01");
415 if (colorinfo & GST_DEBUG_UNDERLINE) {
416 g_string_append (color, ";04");
418 if (colorinfo & GST_DEBUG_FG_MASK) {
419 g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK);
421 if (colorinfo & GST_DEBUG_BG_MASK) {
422 g_string_append_printf (color, ";4%1d", (colorinfo & GST_DEBUG_BG_MASK) >> 4);
424 g_string_append (color, "m");
427 g_string_free (color, FALSE);
431 * gst_debug_log_default:
432 * @category: category to log
433 * @level: level of the message
434 * @file: the file that emitted the message, usually the __FILE__ identifier
435 * @function: the function that emitted the message
436 * @line: the line from that the message was emitted, usually __LINE__
437 * @message: the actual message
438 * @object: the object this message relates to or NULL if none
439 * @unused: an unused variable, reserved for some user_data.
441 * The default logging handler used by GStreamer. Logging functions get called
442 * whenever a macro like GST_DEBUG or similar is used. This function outputs the
443 * message and additional info using the glib error handler.
444 * You can add other handlers by using #gst_debug_add_log_function.
445 * And you can remove this handler by calling
446 * gst_debug_remove_log_function (gst_debug_log_default);
449 gst_debug_log_default (GstDebugCategory *category, GstDebugLevel level,
450 const gchar *file, const gchar *function, gint line,
451 GObject *object, GstDebugMessage *message, gpointer unused)
459 if (level > gst_debug_category_get_threshold (category))
465 if (gst_debug_is_colored ()) {
466 color = gst_debug_construct_term_color (gst_debug_category_get_color (category));
468 pidcolor = g_strdup_printf ("\033[3%1dm", pid % 6 + 31);
470 color = g_strdup ("");
472 pidcolor = g_strdup ("");
475 obj = object ? gst_debug_print_object (object) : g_strdup ("");
477 g_printerr ("%s %s%15s%s(%s%5d%s) %s%s(%d):%s:%s%s %s\n",
478 gst_debug_level_get_name (level),
479 color, gst_debug_category_get_name (category), clear,
480 pidcolor, pid, clear,
481 color, file, line, function, obj, clear,
482 gst_debug_message_get (message));
489 * gst_debug_level_get_name:
490 * @level: the level to get the name for
492 * Get the string trepresentation of a debugging level
497 gst_debug_level_get_name (GstDebugLevel level)
500 case GST_LEVEL_NONE: return "";
501 case GST_LEVEL_ERROR: return "ERROR";
502 case GST_LEVEL_WARNING: return "WARN ";
503 case GST_LEVEL_INFO: return "INFO ";
504 case GST_LEVEL_DEBUG: return "DEBUG";
505 case GST_LEVEL_LOG: return "LOG ";
507 g_warning ("invalid level specified for gst_debug_level_get_name");
512 * gst_debug_add_log_function:
513 * @func: the function to use
516 * Adds the logging function to the list of logging functions.
517 * Be sure to use G_GNUC_NO_INSTRUMENT on that function, it is needed.
520 gst_debug_add_log_function (GstLogFunction func, gpointer data)
525 g_return_if_fail (func != NULL);
527 entry = g_new (LogFuncEntry, 1);
529 entry->user_data = data;
530 /* FIXME: we leak the old list here - other threads might access it right now
531 * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv,
532 * but that is waaay costly.
533 * It'd probably be clever to use some kind of RCU here, but I don't know
534 * anything about that.
536 g_static_mutex_lock (&__log_func_mutex);
537 list = g_slist_copy (__log_functions);
538 __log_functions = g_slist_prepend (list, entry);
539 g_static_mutex_unlock (&__log_func_mutex);
541 GST_DEBUG ("prepended log function %p (user data %p) to log functions",
545 gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func)
547 gpointer entryfunc = ((LogFuncEntry *) entry)->func;
549 return (entryfunc < func) ? -1 : (entryfunc > func) ? 1 : 0;
552 gst_debug_compare_log_function_by_data (gconstpointer entry, gconstpointer data)
554 gpointer entrydata = ((LogFuncEntry *) entry)->user_data;
556 return (entrydata < data) ? -1 : (entrydata > data) ? 1 : 0;
559 gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data)
564 g_static_mutex_lock (&__log_func_mutex);
565 new = __log_functions;
566 while ((found = g_slist_find_custom (new, data, func))) {
567 if (new == __log_functions) {
568 new = g_slist_copy (new);
571 g_free (found->data);
572 new = g_slist_delete_link (new, found);
575 /* FIXME: We leak the old list here. See _add_log_function for why. */
576 __log_functions = new;
577 g_static_mutex_unlock (&__log_func_mutex);
582 * gst_debug_remove_log_function:
583 * @func: the log function to remove
585 * Removes all registrered instances of the given logging functions.
587 * Returns: How many instances of the function were removed
590 gst_debug_remove_log_function (GstLogFunction func)
594 g_return_val_if_fail (func != NULL, 0);
596 removals = gst_debug_remove_with_compare_func (gst_debug_compare_log_function_by_func, func);
597 GST_DEBUG ("removed log function %p %d times from log function list",
603 * gst_debug_remove_log_function_by_data:
604 * @data: user data of the log function to remove
606 * Removes all registrered instances of log functions with the given user data.
608 * Returns: How many instances of the function were removed
611 gst_debug_remove_log_function_by_data (gpointer data)
615 removals = gst_debug_remove_with_compare_func (gst_debug_compare_log_function_by_data, data);
616 GST_DEBUG ("removed %d log functions with user data %p from log function list",
622 * gst_debug_set_colored:
623 * @colored: Whether to use colored output or not
625 * Sets or unsets the use of coloured debugging output.
628 gst_debug_set_colored (gboolean colored)
630 gst_atomic_int_set (&__use_color, colored ? 1 : 0);
633 * gst_debug_is_colored:
635 * Checks if the debugging output should be colored.
637 * Returns: TRUE, if the debug output should be colored.
640 gst_debug_is_colored (void)
642 return gst_atomic_int_read (&__use_color) == 0 ? FALSE : TRUE;
645 * gst_debug_set_active:
646 * @active: Whether to use debugging output or not
648 * If activated, debugging messages are sent to the debugging
650 * It makes sense to deactivate it for speed issues.
651 * <note><para>This function is not threadsafe. It makes sense to only call it
652 * during initialization.</para></note>
655 gst_debug_set_active (gboolean active)
657 __gst_debug_enabled = active;
660 * gst_debug_is_active:
662 * Checks if debugging output is activated.
664 * Returns: TRUE, if debugging is activated
667 gst_debug_is_active (void)
669 return __gst_debug_enabled;
672 * gst_debug_set_default_threshold:
673 * @level: level to set
675 * Sets the default threshold to the given level and updates all categories to
676 * use this threshold.
679 gst_debug_set_default_threshold (GstDebugLevel level)
681 gst_atomic_int_set (&__default_level, level);
682 gst_debug_reset_all_thresholds ();
685 * gst_debug_get_default_threshold:
687 * Returns the default threshold that is used for new categories.
689 * Returns: the default threshold level
692 gst_debug_get_default_threshold (void)
694 return (GstDebugLevel) gst_atomic_int_read (&__default_level);
697 gst_debug_reset_threshold (gpointer category, gpointer unused)
699 GstDebugCategory *cat = (GstDebugCategory *) category;
702 g_static_mutex_lock (&__level_name_mutex);
705 LevelNameEntry *entry = walk->data;
706 walk = g_slist_next (walk);
707 if (g_pattern_match_string (entry->pat, cat->name)) {
708 GST_LOG ("category %s matches pattern %p - gets set to level %d",
709 cat->name, entry->pat, entry->level);
710 gst_debug_category_set_threshold (cat, entry->level);
714 gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
717 g_static_mutex_unlock (&__level_name_mutex);
720 gst_debug_reset_all_thresholds (void)
722 g_static_mutex_lock (&__cat_mutex);
723 g_slist_foreach (__categories, gst_debug_reset_threshold, NULL);
724 g_static_mutex_unlock (&__cat_mutex);
727 for_each_threshold_by_entry (gpointer data, gpointer user_data)
729 GstDebugCategory *cat = (GstDebugCategory *) data;
730 LevelNameEntry *entry = (LevelNameEntry *) user_data;
732 if (g_pattern_match_string (entry->pat, cat->name)) {
733 GST_LOG ("category %s matches pattern %p - gets set to level %d",
734 cat->name, entry->pat, entry->level);
735 gst_debug_category_set_threshold (cat, entry->level);
739 * gst_debug_set_threshold_for_name:
740 * @name: name of the categories to set
741 * @level: level to set them to
743 * Sets all categories which match the gven glob style pattern to the given
747 gst_debug_set_threshold_for_name (const gchar *name, GstDebugLevel level)
750 LevelNameEntry *entry;
752 g_return_if_fail (name != NULL);
754 pat = g_pattern_spec_new (name);
755 entry = g_new (LevelNameEntry, 1);
757 entry->level = level;
758 g_static_mutex_lock (&__level_name_mutex);
759 __level_name = g_slist_prepend (__level_name, entry);
760 g_static_mutex_unlock (&__level_name_mutex);
761 g_static_mutex_lock (&__cat_mutex);
762 g_slist_foreach (__categories, for_each_threshold_by_entry, entry);
763 g_static_mutex_unlock (&__cat_mutex);
766 * gst_debug_unset_threshold_for_name:
767 * @name: name of the categories to set
769 * Resets all categories with the given name back to the default level.
772 gst_debug_unset_threshold_for_name (const gchar *name)
777 g_return_if_fail (name != NULL);
779 pat = g_pattern_spec_new (name);
780 g_static_mutex_lock (&__level_name_mutex);
782 /* improve this if you want, it's mighty slow */
784 LevelNameEntry *entry = walk->data;
785 if (g_pattern_spec_equal (entry->pat, pat)) {
786 __level_name = g_slist_remove_link (__level_name, walk);
787 g_pattern_spec_free (entry->pat);
789 g_slist_free_1 (walk);
793 g_static_mutex_unlock (&__level_name_mutex);
794 g_pattern_spec_free (pat);
795 gst_debug_reset_all_thresholds ();
798 _gst_debug_category_new (gchar *name, guint color, gchar *description)
800 GstDebugCategory *cat;
802 g_return_val_if_fail (name != NULL, NULL);
804 cat = g_new (GstDebugCategory, 1);
805 cat->name = g_strdup (name);
807 if (description != NULL) {
808 cat->description = g_strdup (description);
810 cat->description = g_strdup ("no description");
812 cat->threshold = g_new (GstAtomicInt, 1);
813 gst_atomic_int_init (cat->threshold, 0);
814 gst_debug_reset_threshold (cat, NULL);
816 /* add to category list */
817 g_static_mutex_lock (&__cat_mutex);
818 __categories = g_slist_prepend (__categories, cat);
819 g_static_mutex_unlock (&__cat_mutex);
824 * gst_debug_category_free:
825 * @category: #GstDebugCategory to free.
827 * Removes and frees the category and all associated resources.
830 gst_debug_category_free (GstDebugCategory *category)
832 if (category == NULL) return;
834 /* remove from category list */
835 g_static_mutex_lock (&__cat_mutex);
836 __categories = g_slist_remove (__categories, category);
837 g_static_mutex_unlock (&__cat_mutex);
839 g_free ((gpointer) category->name);
840 g_free ((gpointer) category->description);
841 gst_atomic_int_destroy (category->threshold);
842 g_free (category->threshold);
847 * gst_debug_category_set_threshold:
848 * @category: a #GstDebugCategory to set threshold of.
849 * @level: the #GstDebugLevel threshold to set.
851 * Sets the threshold of the category to the given level. Debug information will
852 * only be output if the threshold is lower or equal to the level of the
855 * Do not use this function in production code, because other functions may
856 * change the threshold of categories as side effect. It is however a nice
857 * function to use when debugging (even from gdb).
861 gst_debug_category_set_threshold (GstDebugCategory *category, GstDebugLevel level)
863 g_return_if_fail (category != NULL);
865 gst_atomic_int_set (category->threshold, level);
869 * gst_debug_category_reset_threshold:
870 * @category: a #GstDebugCategory to reset threshold of.
872 * Resets the threshold of the category to the default level. Debug information
873 * will only be output if the threshold is lower or equal to the level of the
875 * Use this function to set the threshold back to where it was after using
876 * gst_debug_category_set_threshold().
879 gst_debug_category_reset_threshold (GstDebugCategory *category)
881 gst_debug_reset_threshold (category, NULL);
885 * gst_debug_category_get_threshold:
886 * @category: a #GstDebugCategory to get threshold of.
888 * Returns the threshold of a #GstCategory.
890 * Returns: the #GstDebugLevel that is used as threshold.
893 gst_debug_category_get_threshold (GstDebugCategory *category)
895 return gst_atomic_int_read (category->threshold);
899 * gst_debug_category_get_name:
900 * @category: a #GstDebugCategory to get name of.
902 * Returns the name of a debug category.
904 * Returns: the name of the category.
907 gst_debug_category_get_name (GstDebugCategory *category)
909 return category->name;
913 * gst_debug_category_get_color:
914 * @category: a #GstDebugCategory to get the color of.
916 * Returns the color of a debug category used when printing output in this
919 * Returns: the color of the category.
922 gst_debug_category_get_color (GstDebugCategory *category)
924 return category->color;
928 * gst_debug_category_get_description:
929 * @category: a #GstDebugCategory to get the description of.
931 * Returns the description of a debug category.
933 * Returns: the description of the category.
936 gst_debug_category_get_description (GstDebugCategory *category)
938 return category->description;
941 * gst_debug_get_all_categories:
943 * Returns a snapshot of a all categories that are currently in use . This list
944 * may change anytime.
945 * The caller has to free the list after use.
946 * <emphasis>This function is not threadsafe, so only use it while only the
947 * main thread is running.</emphasis>
949 * Returns: the list of categories
952 gst_debug_get_all_categories (void)
956 g_static_mutex_lock (&__cat_mutex);
957 ret = g_slist_copy (__categories);
958 g_static_mutex_unlock (&__cat_mutex);
963 /*** FUNCTION POINTERS ********************************************************/
965 GHashTable *__gst_function_pointers = NULL;
966 const gchar *_gst_debug_nameof_funcptr (void *ptr) G_GNUC_NO_INSTRUMENT;
968 /* This function MUST NOT return NULL */
970 _gst_debug_nameof_funcptr (void *ptr)
977 if (__gst_function_pointers && (ptrname = g_hash_table_lookup(__gst_function_pointers,ptr))) {
980 /* we need to create an entry in the hash table for this one so we don't leak
983 if (dladdr(ptr,&dlinfo) && dlinfo.dli_sname) {
984 gchar *name = g_strdup (dlinfo.dli_sname);
985 _gst_debug_register_funcptr (ptr, name);
990 gchar *name = g_strdup_printf ("%p", ptr);
991 _gst_debug_register_funcptr (ptr, name);
997 _gst_debug_register_funcptr (void *ptr, gchar *ptrname)
999 if (!__gst_function_pointers)
1000 __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal);
1001 if (!g_hash_table_lookup (__gst_function_pointers, ptr))
1002 g_hash_table_insert (__gst_function_pointers, ptr, ptrname);
1007 #ifdef HAVE_PRINTF_EXTENSION
1009 _gst_info_printf_extension (FILE *stream, const struct printf_info *info,
1010 const void *const *args)
1017 ptr = *(void **)args[0];
1019 buffer = gst_debug_print_object (ptr);
1020 len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
1028 _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n,
1032 argtypes[0] = PA_POINTER;
1035 #endif /* HAVE_PRINTF_EXTENSION */
1037 #endif /* GST_DISABLE_GST_DEBUG */
1039 #ifdef GST_ENABLE_FUNC_INSTRUMENTATION
1040 /* FIXME make this thread specific */
1041 static GSList *stack_trace = NULL;
1043 void __cyg_profile_func_enter(void *this_fn,void *call_site) G_GNUC_NO_INSTRUMENT;
1044 void __cyg_profile_func_enter(void *this_fn,void *call_site)
1046 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1047 gchar *site = _gst_debug_nameof_funcptr (call_site);
1049 GST_CAT_DEBUG(GST_CAT_CALL_TRACE, "entering function %s from %s", name, site);
1050 stack_trace = g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)", this_fn, name, call_site, site));
1056 void __cyg_profile_func_exit(void *this_fn,void *call_site) G_GNUC_NO_INSTRUMENT;
1057 void __cyg_profile_func_exit(void *this_fn,void *call_site)
1059 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1061 GST_CAT_DEBUG(GST_CAT_CALL_TRACE, "leaving function %s", name);
1062 g_free (stack_trace->data);
1063 stack_trace = g_slist_delete_link (stack_trace, stack_trace);
1069 gst_debug_print_stack_trace (void)
1071 GSList *walk = stack_trace;
1075 walk = g_slist_next (walk);
1078 gchar *name = (gchar *) walk->data;
1080 g_print ("#%-2d %s\n", count++, name);
1082 walk = g_slist_next (walk);
1087 gst_debug_print_stack_trace (void)
1089 /* nothing because it's compiled out */
1092 #endif /* GST_ENABLE_FUNC_INTSTRUMENTATION */