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 */
40 #include <string.h> /* G_VA_COPY */
43 #include "gst_private.h"
44 #include "gstelement.h"
46 #include "gstscheduler.h"
47 #include "gst_private.h"
49 #include <valgrind/valgrind.h>
52 /* underscore is to prevent conflict with GST_CAT_DEBUG define */
53 GST_DEBUG_CATEGORY_STATIC (_GST_CAT_DEBUG);
57 #include <rld_interface.h>
58 typedef struct DL_INFO
60 const char *dli_fname;
62 const char *dli_sname;
70 #define _RLD_DLADDR 14
71 int dladdr (void *address, Dl_info * dl);
74 dladdr (void *address, Dl_info * dl)
78 v = _rld_new_interface (_RLD_DLADDR, address, dl);
84 extern gchar *_gst_progname;
86 static void gst_debug_reset_threshold (gpointer category, gpointer unused);
87 static void gst_debug_reset_all_thresholds (void);
89 #ifdef HAVE_PRINTF_EXTENSION
90 static int _gst_info_printf_extension (FILE * stream,
91 const struct printf_info *info, const void *const *args);
92 static int _gst_info_printf_extension_arginfo (const struct printf_info *info,
93 size_t n, int *argtypes);
96 struct _GstDebugMessage
103 /* list of all name/level pairs from --gst-debug and GST_DEBUG */
104 static GStaticMutex __level_name_mutex = G_STATIC_MUTEX_INIT;
105 static GSList *__level_name = NULL;
113 /* list of all categories */
114 static GStaticMutex __cat_mutex = G_STATIC_MUTEX_INIT;
115 static GSList *__categories = NULL;
117 /* all registered debug handlers */
124 static GStaticMutex __log_func_mutex = G_STATIC_MUTEX_INIT;
125 static GSList *__log_functions = NULL;
127 static GstAtomicInt __default_level;
128 static GstAtomicInt __use_color;
129 gboolean __gst_debug_enabled = TRUE;
132 GstDebugCategory *GST_CAT_DEFAULT = NULL;
134 GstDebugCategory *GST_CAT_GST_INIT = NULL;
135 GstDebugCategory *GST_CAT_COTHREADS = NULL;
136 GstDebugCategory *GST_CAT_COTHREAD_SWITCH = NULL;
137 GstDebugCategory *GST_CAT_AUTOPLUG = NULL;
138 GstDebugCategory *GST_CAT_AUTOPLUG_ATTEMPT = NULL;
139 GstDebugCategory *GST_CAT_PARENTAGE = NULL;
140 GstDebugCategory *GST_CAT_STATES = NULL;
141 GstDebugCategory *GST_CAT_PLANNING = NULL;
142 GstDebugCategory *GST_CAT_SCHEDULING = NULL;
143 GstDebugCategory *GST_CAT_DATAFLOW = NULL;
144 GstDebugCategory *GST_CAT_BUFFER = NULL;
145 GstDebugCategory *GST_CAT_CAPS = NULL;
146 GstDebugCategory *GST_CAT_CLOCK = NULL;
147 GstDebugCategory *GST_CAT_ELEMENT_PADS = NULL;
148 GstDebugCategory *GST_CAT_PADS = NULL;
149 GstDebugCategory *GST_CAT_PIPELINE = NULL;
150 GstDebugCategory *GST_CAT_PLUGIN_LOADING = NULL;
151 GstDebugCategory *GST_CAT_PLUGIN_INFO = NULL;
152 GstDebugCategory *GST_CAT_PROPERTIES = NULL;
153 GstDebugCategory *GST_CAT_THREAD = NULL;
154 GstDebugCategory *GST_CAT_TYPES = NULL;
155 GstDebugCategory *GST_CAT_XML = NULL;
156 GstDebugCategory *GST_CAT_NEGOTIATION = NULL;
157 GstDebugCategory *GST_CAT_REFCOUNTING = NULL;
158 GstDebugCategory *GST_CAT_ERROR_SYSTEM = NULL;
159 GstDebugCategory *GST_CAT_EVENT = NULL;
160 GstDebugCategory *GST_CAT_PARAMS = NULL;
161 GstDebugCategory *GST_CAT_CALL_TRACE = NULL;
162 GstDebugCategory *GST_CAT_SEEK = NULL;
164 /* FIXME: export this? */
166 __gst_in_valgrind (void)
174 in_valgrind = GST_VG_UNCHECKED;
176 if (in_valgrind == GST_VG_UNCHECKED) {
178 if (RUNNING_ON_VALGRIND) {
179 GST_CAT_INFO (GST_CAT_GST_INIT, "we're running inside valgrind");
181 ("GStreamer has detected that it is running inside valgrind.");
183 ("It might now take different code paths to ease debugging.");
184 VALGRIND_PRINTF ("Of course, this may also lead to different bugs.");
185 in_valgrind = GST_VG_INSIDE;
187 GST_CAT_LOG (GST_CAT_GST_INIT, "not doing extra valgrind stuff");
188 in_valgrind = GST_VG_NO_VALGRIND;
191 in_valgrind = GST_VG_NO_VALGRIND;
193 g_assert (in_valgrind == GST_VG_NO_VALGRIND ||
194 in_valgrind == GST_VG_INSIDE);
196 return (in_valgrind == GST_VG_INSIDE) ? TRUE : FALSE;
202 * Initializes the debugging system.
203 * Normally you don't want to call this, because gst_init does it for you.
206 _gst_debug_init (void)
208 gst_atomic_int_init (&__default_level, GST_LEVEL_DEFAULT);
209 gst_atomic_int_init (&__use_color, 1);
211 #ifdef HAVE_PRINTF_EXTENSION
212 register_printf_function (GST_PTR_FORMAT[0], _gst_info_printf_extension,
213 _gst_info_printf_extension_arginfo);
216 /* do NOT use a single debug function before this line has been run */
217 GST_CAT_DEFAULT = _gst_debug_category_new ("default",
218 GST_DEBUG_UNDERLINE, NULL);
219 _GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG",
220 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, "debugging subsystem");
222 gst_debug_add_log_function (gst_debug_log_default, NULL);
224 /* FIXME: add descriptions here */
225 GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT",
226 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
227 GST_CAT_COTHREADS = _gst_debug_category_new ("GST_COTHREADS",
228 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL);
229 GST_CAT_COTHREAD_SWITCH = _gst_debug_category_new ("GST_COTHREAD_SWITCH",
230 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_GREEN, NULL);
231 GST_CAT_AUTOPLUG = _gst_debug_category_new ("GST_AUTOPLUG",
232 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
233 GST_CAT_AUTOPLUG_ATTEMPT = _gst_debug_category_new ("GST_AUTOPLUG_ATTEMPT",
234 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN | GST_DEBUG_BG_BLUE, NULL);
235 GST_CAT_PARENTAGE = _gst_debug_category_new ("GST_PARENTAGE",
236 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
237 GST_CAT_STATES = _gst_debug_category_new ("GST_STATES",
238 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
239 GST_CAT_PLANNING = _gst_debug_category_new ("GST_PLANNING",
240 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL);
241 GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING",
242 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL);
243 GST_CAT_DATAFLOW = _gst_debug_category_new ("GST_DATAFLOW",
244 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL);
245 GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER",
246 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL);
247 GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS",
248 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
249 GST_CAT_CLOCK = _gst_debug_category_new ("GST_CLOCK",
250 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, NULL);
251 GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS",
252 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
253 GST_CAT_PADS = _gst_debug_category_new ("GST_PADS",
254 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
255 GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE",
256 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
257 GST_CAT_PLUGIN_LOADING = _gst_debug_category_new ("GST_PLUGIN_LOADING",
258 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
259 GST_CAT_PLUGIN_INFO = _gst_debug_category_new ("GST_PLUGIN_INFO",
260 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
261 GST_CAT_PROPERTIES = _gst_debug_category_new ("GST_PROPERTIES",
262 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLUE, NULL);
263 GST_CAT_THREAD = _gst_debug_category_new ("GST_THREAD",
264 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
265 GST_CAT_TYPES = _gst_debug_category_new ("GST_TYPES",
266 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
267 GST_CAT_XML = _gst_debug_category_new ("GST_XML",
268 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
269 GST_CAT_NEGOTIATION = _gst_debug_category_new ("GST_NEGOTIATION",
270 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
271 GST_CAT_REFCOUNTING = _gst_debug_category_new ("GST_REFCOUNTING",
272 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE | GST_DEBUG_BG_GREEN, NULL);
273 GST_CAT_ERROR_SYSTEM = _gst_debug_category_new ("GST_ERROR_SYSTEM",
274 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_WHITE, NULL);
276 GST_CAT_EVENT = _gst_debug_category_new ("GST_EVENT",
277 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
278 GST_CAT_PARAMS = _gst_debug_category_new ("GST_PARAMS",
279 GST_DEBUG_BOLD | GST_DEBUG_FG_BLACK | GST_DEBUG_BG_YELLOW, NULL);
280 GST_CAT_CALL_TRACE = _gst_debug_category_new ("GST_CALL_TRACE",
281 GST_DEBUG_BOLD, NULL);
282 GST_CAT_SEEK = _gst_debug_category_new ("GST_SEEK",
283 0, "plugins reacting to seek events");
285 /* print out the valgrind message if we're in valgrind */
286 __gst_in_valgrind ();
289 /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */
290 #define GST_CAT_DEFAULT _GST_CAT_DEBUG
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 * @...: optional arguments for the format
303 * Logs the given message using the currently registered debugging handlers.
306 gst_debug_log (GstDebugCategory * category, GstDebugLevel level,
307 const gchar * file, const gchar * function, gint line,
308 GObject * object, const gchar * format, ...)
312 va_start (var_args, format);
313 gst_debug_log_valist (category, level, file, function, line, object, format,
319 * gst_debug_log_valist:
320 * @category: category to log
321 * @level: level of the message is in
322 * @file: the file that emitted the message, usually the __FILE__ identifier
323 * @function: the function that emitted the message
324 * @line: the line from that the message was emitted, usually __LINE__
325 * @object: the object this message relates to or NULL if none
326 * @format: a printf style format string
327 * @args: optional arguments for the format
329 * Logs the given message using the currently registered debugging handlers.
332 gst_debug_log_valist (GstDebugCategory * category, GstDebugLevel level,
333 const gchar * file, const gchar * function, gint line,
334 GObject * object, const gchar * format, va_list args)
336 GstDebugMessage message;
340 g_return_if_fail (category != NULL);
341 g_return_if_fail (file != NULL);
342 g_return_if_fail (function != NULL);
343 g_return_if_fail (format != NULL);
345 message.message = NULL;
346 message.format = format;
347 G_VA_COPY (message.arguments, args);
349 handler = __log_functions;
351 entry = handler->data;
352 handler = g_slist_next (handler);
353 entry->func (category, level, file, function, line, object, &message,
356 g_free (message.message);
357 va_end (message.arguments);
361 * gst_debug_message_get:
362 * @message: a debug message
364 * Gets the string representation of a #GstDebugMessage. This function is used
365 * in debug handlers to extract the message.
367 * Returns: the string representation of a #GstDebugMessage.
370 gst_debug_message_get (GstDebugMessage * message)
372 if (message->message == NULL) {
373 message->message = g_strdup_vprintf (message->format, message->arguments);
375 return message->message;
380 gst_debug_print_object (gpointer ptr)
382 GObject *object = (GObject *) ptr;
385 /* This is a cute trick to detect unmapped memory, but is unportable,
386 * slow, screws around with madvise, and not actually that useful. */
390 ret = madvise ((void *) ((unsigned long) ptr & (~0xfff)), 4096, 0);
391 if (ret == -1 && errno == ENOMEM) {
392 buffer = g_strdup_printf ("%p (unmapped memory)", ptr);
397 /* nicely printed object */
398 if (object == NULL) {
399 return g_strdup ("(NULL)");
401 if (*(GType *) ptr == GST_TYPE_CAPS) {
402 return gst_caps_to_string ((GstCaps *) ptr);
404 if (*(GType *) ptr == GST_TYPE_STRUCTURE) {
405 return gst_structure_to_string ((GstStructure *) ptr);
408 if (*(guint32 *) ptr == 0xffffffff) {
409 return g_strdup_printf ("<poisoned@%p>", ptr);
412 if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
413 return g_strdup_printf ("<%s:%s>", GST_DEBUG_PAD_NAME (object));
415 if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
416 return g_strdup_printf ("<%s>", GST_OBJECT_NAME (object));
418 if (G_IS_OBJECT (object)) {
419 return g_strdup_printf ("<%s@%p>", G_OBJECT_TYPE_NAME (object), object);
422 return g_strdup_printf ("%p", ptr);
426 * gst_debug_construct_term_color:
427 * @colorinfo: the color info
429 * Constructs a string that can be used for getting the desired color in color
431 * You need to free the string after use.
433 * Returns: a string containing the color definition
436 gst_debug_construct_term_color (guint colorinfo)
441 color = g_string_new ("\033[00");
443 if (colorinfo & GST_DEBUG_BOLD) {
444 g_string_append (color, ";01");
446 if (colorinfo & GST_DEBUG_UNDERLINE) {
447 g_string_append (color, ";04");
449 if (colorinfo & GST_DEBUG_FG_MASK) {
450 g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK);
452 if (colorinfo & GST_DEBUG_BG_MASK) {
453 g_string_append_printf (color, ";4%1d",
454 (colorinfo & GST_DEBUG_BG_MASK) >> 4);
456 g_string_append (color, "m");
459 g_string_free (color, FALSE);
464 * gst_debug_log_default:
465 * @category: category to log
466 * @level: level of the message
467 * @file: the file that emitted the message, usually the __FILE__ identifier
468 * @function: the function that emitted the message
469 * @line: the line from that the message was emitted, usually __LINE__
470 * @message: the actual message
471 * @object: the object this message relates to or NULL if none
472 * @unused: an unused variable, reserved for some user_data.
474 * The default logging handler used by GStreamer. Logging functions get called
475 * whenever a macro like GST_DEBUG or similar is used. This function outputs the
476 * message and additional info using the glib error handler.
477 * You can add other handlers by using #gst_debug_add_log_function.
478 * And you can remove this handler by calling
479 * gst_debug_remove_log_function (gst_debug_log_default);
482 gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level,
483 const gchar * file, const gchar * function, gint line,
484 GObject * object, GstDebugMessage * message, gpointer unused)
492 if (level > gst_debug_category_get_threshold (category))
498 if (gst_debug_is_colored ()) {
500 gst_debug_construct_term_color (gst_debug_category_get_color
503 pidcolor = g_strdup_printf ("\033[3%1dm", pid % 6 + 31);
505 color = g_strdup ("");
507 pidcolor = g_strdup ("");
510 obj = object ? gst_debug_print_object (object) : g_strdup ("");
512 g_printerr ("%s %s%15s%s(%s%5d%s) %s%s(%d):%s:%s%s %s\n",
513 gst_debug_level_get_name (level),
514 color, gst_debug_category_get_name (category), clear,
515 pidcolor, pid, clear,
516 color, file, line, function, obj, clear, gst_debug_message_get (message));
524 * gst_debug_level_get_name:
525 * @level: the level to get the name for
527 * Get the string trepresentation of a debugging level
532 gst_debug_level_get_name (GstDebugLevel level)
537 case GST_LEVEL_ERROR:
539 case GST_LEVEL_WARNING:
543 case GST_LEVEL_DEBUG:
548 g_warning ("invalid level specified for gst_debug_level_get_name");
554 * gst_debug_add_log_function:
555 * @func: the function to use
558 * Adds the logging function to the list of logging functions.
559 * Be sure to use G_GNUC_NO_INSTRUMENT on that function, it is needed.
562 gst_debug_add_log_function (GstLogFunction func, gpointer data)
567 g_return_if_fail (func != NULL);
569 entry = g_new (LogFuncEntry, 1);
571 entry->user_data = data;
572 /* FIXME: we leak the old list here - other threads might access it right now
573 * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv,
574 * but that is waaay costly.
575 * It'd probably be clever to use some kind of RCU here, but I don't know
576 * anything about that.
578 g_static_mutex_lock (&__log_func_mutex);
579 list = g_slist_copy (__log_functions);
580 __log_functions = g_slist_prepend (list, entry);
581 g_static_mutex_unlock (&__log_func_mutex);
583 GST_DEBUG ("prepended log function %p (user data %p) to log functions",
588 gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func)
590 gpointer entryfunc = ((LogFuncEntry *) entry)->func;
592 return (entryfunc < func) ? -1 : (entryfunc > func) ? 1 : 0;
596 gst_debug_compare_log_function_by_data (gconstpointer entry, gconstpointer data)
598 gpointer entrydata = ((LogFuncEntry *) entry)->user_data;
600 return (entrydata < data) ? -1 : (entrydata > data) ? 1 : 0;
604 gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data)
610 g_static_mutex_lock (&__log_func_mutex);
611 new = __log_functions;
612 while ((found = g_slist_find_custom (new, data, func))) {
613 if (new == __log_functions) {
614 new = g_slist_copy (new);
617 g_free (found->data);
618 new = g_slist_delete_link (new, found);
621 /* FIXME: We leak the old list here. See _add_log_function for why. */
622 __log_functions = new;
623 g_static_mutex_unlock (&__log_func_mutex);
629 * gst_debug_remove_log_function:
630 * @func: the log function to remove
632 * Removes all registrered instances of the given logging functions.
634 * Returns: How many instances of the function were removed
637 gst_debug_remove_log_function (GstLogFunction func)
641 g_return_val_if_fail (func != NULL, 0);
644 gst_debug_remove_with_compare_func
645 (gst_debug_compare_log_function_by_func, func);
646 GST_DEBUG ("removed log function %p %d times from log function list", func,
653 * gst_debug_remove_log_function_by_data:
654 * @data: user data of the log function to remove
656 * Removes all registrered instances of log functions with the given user data.
658 * Returns: How many instances of the function were removed
661 gst_debug_remove_log_function_by_data (gpointer data)
666 gst_debug_remove_with_compare_func
667 (gst_debug_compare_log_function_by_data, data);
669 ("removed %d log functions with user data %p from log function list",
676 * gst_debug_set_colored:
677 * @colored: Whether to use colored output or not
679 * Sets or unsets the use of coloured debugging output.
682 gst_debug_set_colored (gboolean colored)
684 gst_atomic_int_set (&__use_color, colored ? 1 : 0);
688 * gst_debug_is_colored:
690 * Checks if the debugging output should be colored.
692 * Returns: TRUE, if the debug output should be colored.
695 gst_debug_is_colored (void)
697 return gst_atomic_int_read (&__use_color) == 0 ? FALSE : TRUE;
701 * gst_debug_set_active:
702 * @active: Whether to use debugging output or not
704 * If activated, debugging messages are sent to the debugging
706 * It makes sense to deactivate it for speed issues.
707 * <note><para>This function is not threadsafe. It makes sense to only call it
708 * during initialization.</para></note>
711 gst_debug_set_active (gboolean active)
713 __gst_debug_enabled = active;
717 * gst_debug_is_active:
719 * Checks if debugging output is activated.
721 * Returns: TRUE, if debugging is activated
724 gst_debug_is_active (void)
726 return __gst_debug_enabled;
730 * gst_debug_set_default_threshold:
731 * @level: level to set
733 * Sets the default threshold to the given level and updates all categories to
734 * use this threshold.
737 gst_debug_set_default_threshold (GstDebugLevel level)
739 gst_atomic_int_set (&__default_level, level);
740 gst_debug_reset_all_thresholds ();
744 * gst_debug_get_default_threshold:
746 * Returns the default threshold that is used for new categories.
748 * Returns: the default threshold level
751 gst_debug_get_default_threshold (void)
753 return (GstDebugLevel) gst_atomic_int_read (&__default_level);
756 gst_debug_reset_threshold (gpointer category, gpointer unused)
758 GstDebugCategory *cat = (GstDebugCategory *) category;
761 g_static_mutex_lock (&__level_name_mutex);
764 LevelNameEntry *entry = walk->data;
766 walk = g_slist_next (walk);
767 if (g_pattern_match_string (entry->pat, cat->name)) {
768 GST_LOG ("category %s matches pattern %p - gets set to level %d",
769 cat->name, entry->pat, entry->level);
770 gst_debug_category_set_threshold (cat, entry->level);
774 gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
777 g_static_mutex_unlock (&__level_name_mutex);
780 gst_debug_reset_all_thresholds (void)
782 g_static_mutex_lock (&__cat_mutex);
783 g_slist_foreach (__categories, gst_debug_reset_threshold, NULL);
784 g_static_mutex_unlock (&__cat_mutex);
787 for_each_threshold_by_entry (gpointer data, gpointer user_data)
789 GstDebugCategory *cat = (GstDebugCategory *) data;
790 LevelNameEntry *entry = (LevelNameEntry *) user_data;
792 if (g_pattern_match_string (entry->pat, cat->name)) {
793 GST_LOG ("category %s matches pattern %p - gets set to level %d",
794 cat->name, entry->pat, entry->level);
795 gst_debug_category_set_threshold (cat, entry->level);
800 * gst_debug_set_threshold_for_name:
801 * @name: name of the categories to set
802 * @level: level to set them to
804 * Sets all categories which match the gven glob style pattern to the given
808 gst_debug_set_threshold_for_name (const gchar * name, GstDebugLevel level)
811 LevelNameEntry *entry;
813 g_return_if_fail (name != NULL);
815 pat = g_pattern_spec_new (name);
816 entry = g_new (LevelNameEntry, 1);
818 entry->level = level;
819 g_static_mutex_lock (&__level_name_mutex);
820 __level_name = g_slist_prepend (__level_name, entry);
821 g_static_mutex_unlock (&__level_name_mutex);
822 g_static_mutex_lock (&__cat_mutex);
823 g_slist_foreach (__categories, for_each_threshold_by_entry, entry);
824 g_static_mutex_unlock (&__cat_mutex);
828 * gst_debug_unset_threshold_for_name:
829 * @name: name of the categories to set
831 * Resets all categories with the given name back to the default level.
834 gst_debug_unset_threshold_for_name (const gchar * name)
839 g_return_if_fail (name != NULL);
841 pat = g_pattern_spec_new (name);
842 g_static_mutex_lock (&__level_name_mutex);
844 /* improve this if you want, it's mighty slow */
846 LevelNameEntry *entry = walk->data;
848 if (g_pattern_spec_equal (entry->pat, pat)) {
849 __level_name = g_slist_remove_link (__level_name, walk);
850 g_pattern_spec_free (entry->pat);
852 g_slist_free_1 (walk);
856 g_static_mutex_unlock (&__level_name_mutex);
857 g_pattern_spec_free (pat);
858 gst_debug_reset_all_thresholds ();
862 _gst_debug_category_new (gchar * name, guint color, gchar * description)
864 GstDebugCategory *cat;
866 g_return_val_if_fail (name != NULL, NULL);
868 cat = g_new (GstDebugCategory, 1);
869 cat->name = g_strdup (name);
871 if (description != NULL) {
872 cat->description = g_strdup (description);
874 cat->description = g_strdup ("no description");
876 cat->threshold = g_new (GstAtomicInt, 1);
877 gst_atomic_int_init (cat->threshold, 0);
878 gst_debug_reset_threshold (cat, NULL);
880 /* add to category list */
881 g_static_mutex_lock (&__cat_mutex);
882 __categories = g_slist_prepend (__categories, cat);
883 g_static_mutex_unlock (&__cat_mutex);
889 * gst_debug_category_free:
890 * @category: #GstDebugCategory to free.
892 * Removes and frees the category and all associated resources.
895 gst_debug_category_free (GstDebugCategory * category)
897 if (category == NULL)
900 /* remove from category list */
901 g_static_mutex_lock (&__cat_mutex);
902 __categories = g_slist_remove (__categories, category);
903 g_static_mutex_unlock (&__cat_mutex);
905 g_free ((gpointer) category->name);
906 g_free ((gpointer) category->description);
907 gst_atomic_int_destroy (category->threshold);
908 g_free (category->threshold);
913 * gst_debug_category_set_threshold:
914 * @category: a #GstDebugCategory to set threshold of.
915 * @level: the #GstDebugLevel threshold to set.
917 * Sets the threshold of the category to the given level. Debug information will
918 * only be output if the threshold is lower or equal to the level of the
921 * Do not use this function in production code, because other functions may
922 * change the threshold of categories as side effect. It is however a nice
923 * function to use when debugging (even from gdb).
927 gst_debug_category_set_threshold (GstDebugCategory * category,
930 g_return_if_fail (category != NULL);
932 gst_atomic_int_set (category->threshold, level);
936 * gst_debug_category_reset_threshold:
937 * @category: a #GstDebugCategory to reset threshold of.
939 * Resets the threshold of the category to the default level. Debug information
940 * will only be output if the threshold is lower or equal to the level of the
942 * Use this function to set the threshold back to where it was after using
943 * gst_debug_category_set_threshold().
946 gst_debug_category_reset_threshold (GstDebugCategory * category)
948 gst_debug_reset_threshold (category, NULL);
952 * gst_debug_category_get_threshold:
953 * @category: a #GstDebugCategory to get threshold of.
955 * Returns the threshold of a #GstCategory.
957 * Returns: the #GstDebugLevel that is used as threshold.
960 gst_debug_category_get_threshold (GstDebugCategory * category)
962 return gst_atomic_int_read (category->threshold);
966 * gst_debug_category_get_name:
967 * @category: a #GstDebugCategory to get name of.
969 * Returns the name of a debug category.
971 * Returns: the name of the category.
974 gst_debug_category_get_name (GstDebugCategory * category)
976 return category->name;
980 * gst_debug_category_get_color:
981 * @category: a #GstDebugCategory to get the color of.
983 * Returns the color of a debug category used when printing output in this
986 * Returns: the color of the category.
989 gst_debug_category_get_color (GstDebugCategory * category)
991 return category->color;
995 * gst_debug_category_get_description:
996 * @category: a #GstDebugCategory to get the description of.
998 * Returns the description of a debug category.
1000 * Returns: the description of the category.
1003 gst_debug_category_get_description (GstDebugCategory * category)
1005 return category->description;
1009 * gst_debug_get_all_categories:
1011 * Returns a snapshot of a all categories that are currently in use . This list
1012 * may change anytime.
1013 * The caller has to free the list after use.
1014 * <emphasis>This function is not threadsafe, so only use it while only the
1015 * main thread is running.</emphasis>
1017 * Returns: the list of categories
1020 gst_debug_get_all_categories (void)
1024 g_static_mutex_lock (&__cat_mutex);
1025 ret = g_slist_copy (__categories);
1026 g_static_mutex_unlock (&__cat_mutex);
1031 /*** FUNCTION POINTERS ********************************************************/
1033 GHashTable *__gst_function_pointers = NULL;
1035 _gst_debug_nameof_funcptr (void *ptr)
1036 G_GNUC_NO_INSTRUMENT;
1038 /* This function MUST NOT return NULL */
1039 const gchar *_gst_debug_nameof_funcptr (void *ptr)
1047 if (__gst_function_pointers
1048 && (ptrname = g_hash_table_lookup (__gst_function_pointers, ptr))) {
1051 /* we need to create an entry in the hash table for this one so we don't leak
1054 if (dladdr (ptr, &dlinfo) && dlinfo.dli_sname) {
1055 gchar *name = g_strdup (dlinfo.dli_sname);
1057 _gst_debug_register_funcptr (ptr, name);
1062 gchar *name = g_strdup_printf ("%p", ptr);
1064 _gst_debug_register_funcptr (ptr, name);
1070 _gst_debug_register_funcptr (void *ptr, gchar * ptrname)
1072 if (!__gst_function_pointers)
1073 __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal);
1074 if (!g_hash_table_lookup (__gst_function_pointers, ptr))
1075 g_hash_table_insert (__gst_function_pointers, ptr, ptrname);
1080 #ifdef HAVE_PRINTF_EXTENSION
1082 _gst_info_printf_extension (FILE * stream, const struct printf_info *info,
1083 const void *const *args)
1090 ptr = *(void **) args[0];
1092 buffer = gst_debug_print_object (ptr);
1093 len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
1101 _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n,
1105 argtypes[0] = PA_POINTER;
1108 #endif /* HAVE_PRINTF_EXTENSION */
1110 #endif /* GST_DISABLE_GST_DEBUG */
1112 #ifdef GST_ENABLE_FUNC_INSTRUMENTATION
1113 /* FIXME make this thread specific */
1114 static GSList *stack_trace = NULL;
1117 __cyg_profile_func_enter (void *this_fn, void *call_site)
1118 G_GNUC_NO_INSTRUMENT;
1119 void __cyg_profile_func_enter (void *this_fn, void *call_site)
1121 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1122 gchar *site = _gst_debug_nameof_funcptr (call_site);
1124 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "entering function %s from %s", name,
1127 g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)",
1128 this_fn, name, call_site, site));
1135 __cyg_profile_func_exit (void *this_fn, void *call_site)
1136 G_GNUC_NO_INSTRUMENT;
1137 void __cyg_profile_func_exit (void *this_fn, void *call_site)
1139 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1141 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "leaving function %s", name);
1142 g_free (stack_trace->data);
1143 stack_trace = g_slist_delete_link (stack_trace, stack_trace);
1149 gst_debug_print_stack_trace (void)
1151 GSList *walk = stack_trace;
1155 walk = g_slist_next (walk);
1158 gchar *name = (gchar *) walk->data;
1160 g_print ("#%-2d %s\n", count++, name);
1162 walk = g_slist_next (walk);
1167 gst_debug_print_stack_trace (void)
1169 /* nothing because it's compiled out */
1172 #endif /* GST_ENABLE_FUNC_INTSTRUMENTATION */