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
54 const char *dli_fname;
56 const char *dli_sname;
64 #define _RLD_DLADDR 14
65 int dladdr (void *address, Dl_info * dl);
68 dladdr (void *address, Dl_info * dl)
72 v = _rld_new_interface (_RLD_DLADDR, address, dl);
78 extern gchar *_gst_progname;
80 static void gst_debug_reset_threshold (gpointer category, gpointer unused);
81 static void gst_debug_reset_all_thresholds (void);
83 #ifdef HAVE_PRINTF_EXTENSION
84 static int _gst_info_printf_extension (FILE * stream,
85 const struct printf_info *info, const void *const *args);
86 static int _gst_info_printf_extension_arginfo (const struct printf_info *info,
87 size_t n, int *argtypes);
90 struct _GstDebugMessage
97 /* list of all name/level pairs from --gst-debug and GST_DEBUG */
98 static GStaticMutex __level_name_mutex = G_STATIC_MUTEX_INIT;
99 static GSList *__level_name = NULL;
107 /* list of all categories */
108 static GStaticMutex __cat_mutex = G_STATIC_MUTEX_INIT;
109 static GSList *__categories = NULL;
111 /* all registered debug handlers */
118 static GStaticMutex __log_func_mutex = G_STATIC_MUTEX_INIT;
119 static GSList *__log_functions = NULL;
121 static GstAtomicInt __default_level;
122 static GstAtomicInt __use_color;
123 gboolean __gst_debug_enabled = TRUE;
126 GstDebugCategory *GST_CAT_DEFAULT = NULL;
128 GstDebugCategory *GST_CAT_GST_INIT = NULL;
129 GstDebugCategory *GST_CAT_COTHREADS = NULL;
130 GstDebugCategory *GST_CAT_COTHREAD_SWITCH = NULL;
131 GstDebugCategory *GST_CAT_AUTOPLUG = NULL;
132 GstDebugCategory *GST_CAT_AUTOPLUG_ATTEMPT = NULL;
133 GstDebugCategory *GST_CAT_PARENTAGE = NULL;
134 GstDebugCategory *GST_CAT_STATES = NULL;
135 GstDebugCategory *GST_CAT_PLANNING = NULL;
136 GstDebugCategory *GST_CAT_SCHEDULING = NULL;
137 GstDebugCategory *GST_CAT_DATAFLOW = NULL;
138 GstDebugCategory *GST_CAT_BUFFER = NULL;
139 GstDebugCategory *GST_CAT_CAPS = NULL;
140 GstDebugCategory *GST_CAT_CLOCK = NULL;
141 GstDebugCategory *GST_CAT_ELEMENT_PADS = NULL;
142 GstDebugCategory *GST_CAT_PADS = NULL;
143 GstDebugCategory *GST_CAT_PIPELINE = NULL;
144 GstDebugCategory *GST_CAT_PLUGIN_LOADING = NULL;
145 GstDebugCategory *GST_CAT_PLUGIN_INFO = NULL;
146 GstDebugCategory *GST_CAT_PROPERTIES = NULL;
147 GstDebugCategory *GST_CAT_THREAD = NULL;
148 GstDebugCategory *GST_CAT_TYPES = NULL;
149 GstDebugCategory *GST_CAT_XML = NULL;
150 GstDebugCategory *GST_CAT_NEGOTIATION = NULL;
151 GstDebugCategory *GST_CAT_REFCOUNTING = NULL;
152 GstDebugCategory *GST_CAT_ERROR_SYSTEM = NULL;
153 GstDebugCategory *GST_CAT_EVENT = NULL;
154 GstDebugCategory *GST_CAT_PARAMS = NULL;
155 GstDebugCategory *GST_CAT_CALL_TRACE = NULL;
156 GstDebugCategory *GST_CAT_SEEK = NULL;
161 * Initializes the debugging system.
162 * Normally you don't want to call this, because gst_init does it for you.
165 _gst_debug_init (void)
167 gst_atomic_int_init (&__default_level, GST_LEVEL_DEFAULT);
168 gst_atomic_int_init (&__use_color, 1);
170 #ifdef HAVE_PRINTF_EXTENSION
171 register_printf_function (GST_PTR_FORMAT[0], _gst_info_printf_extension,
172 _gst_info_printf_extension_arginfo);
175 /* do NOT use a single debug function before this line has been run */
176 GST_CAT_DEFAULT = _gst_debug_category_new ("default",
177 GST_DEBUG_UNDERLINE, NULL);
178 GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG",
179 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, "debugging subsystem");
181 gst_debug_add_log_function (gst_debug_log_default, NULL);
183 /* FIXME: add descriptions here */
184 GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT",
185 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
186 GST_CAT_COTHREADS = _gst_debug_category_new ("GST_COTHREADS",
187 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL);
188 GST_CAT_COTHREAD_SWITCH = _gst_debug_category_new ("GST_COTHREAD_SWITCH",
189 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_GREEN, NULL);
190 GST_CAT_AUTOPLUG = _gst_debug_category_new ("GST_AUTOPLUG",
191 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
192 GST_CAT_AUTOPLUG_ATTEMPT = _gst_debug_category_new ("GST_AUTOPLUG_ATTEMPT",
193 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN | GST_DEBUG_BG_BLUE, NULL);
194 GST_CAT_PARENTAGE = _gst_debug_category_new ("GST_PARENTAGE",
195 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
196 GST_CAT_STATES = _gst_debug_category_new ("GST_STATES",
197 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
198 GST_CAT_PLANNING = _gst_debug_category_new ("GST_PLANNING",
199 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL);
200 GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING",
201 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL);
202 GST_CAT_DATAFLOW = _gst_debug_category_new ("GST_DATAFLOW",
203 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL);
204 GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER",
205 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL);
206 GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS",
207 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
208 GST_CAT_CLOCK = _gst_debug_category_new ("GST_CLOCK",
209 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, NULL);
210 GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS",
211 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
212 GST_CAT_PADS = _gst_debug_category_new ("GST_PADS",
213 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
214 GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE",
215 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
216 GST_CAT_PLUGIN_LOADING = _gst_debug_category_new ("GST_PLUGIN_LOADING",
217 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
218 GST_CAT_PLUGIN_INFO = _gst_debug_category_new ("GST_PLUGIN_INFO",
219 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
220 GST_CAT_PROPERTIES = _gst_debug_category_new ("GST_PROPERTIES",
221 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLUE, NULL);
222 GST_CAT_THREAD = _gst_debug_category_new ("GST_THREAD",
223 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
224 GST_CAT_TYPES = _gst_debug_category_new ("GST_TYPES",
225 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
226 GST_CAT_XML = _gst_debug_category_new ("GST_XML",
227 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
228 GST_CAT_NEGOTIATION = _gst_debug_category_new ("GST_NEGOTIATION",
229 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
230 GST_CAT_REFCOUNTING = _gst_debug_category_new ("GST_REFCOUNTING",
231 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE | GST_DEBUG_BG_GREEN, NULL);
232 GST_CAT_ERROR_SYSTEM = _gst_debug_category_new ("GST_ERROR_SYSTEM",
233 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_WHITE, NULL);
235 GST_CAT_EVENT = _gst_debug_category_new ("GST_EVENT",
236 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
237 GST_CAT_PARAMS = _gst_debug_category_new ("GST_PARAMS",
238 GST_DEBUG_BOLD | GST_DEBUG_FG_BLACK | GST_DEBUG_BG_YELLOW, NULL);
239 GST_CAT_CALL_TRACE = _gst_debug_category_new ("GST_CALL_TRACE",
240 GST_DEBUG_BOLD, NULL);
241 GST_CAT_SEEK = _gst_debug_category_new ("GST_SEEK",
242 0, "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.
262 gst_debug_log (GstDebugCategory * category, GstDebugLevel level,
263 const gchar * file, const gchar * function, gint line,
264 GObject * object, const gchar * format, ...)
268 va_start (var_args, format);
269 gst_debug_log_valist (category, level, file, function, line, object, format,
275 * gst_debug_log_valist:
276 * @category: category to log
277 * @level: level of the message is in
278 * @file: the file that emitted the message, usually the __FILE__ identifier
279 * @function: the function that emitted the message
280 * @line: the line from that the message was emitted, usually __LINE__
281 * @object: the object this message relates to or NULL if none
282 * @format: a printf style format string
283 * @args: optional arguments for the format
285 * Logs the given message using the currently registered debugging handlers.
288 gst_debug_log_valist (GstDebugCategory * category, GstDebugLevel level,
289 const gchar * file, const gchar * function, gint line,
290 GObject * object, const gchar * format, va_list args)
292 GstDebugMessage message;
296 g_return_if_fail (category != NULL);
297 g_return_if_fail (file != NULL);
298 g_return_if_fail (function != NULL);
299 g_return_if_fail (format != NULL);
301 message.message = NULL;
302 message.format = format;
303 G_VA_COPY (message.arguments, args);
305 handler = __log_functions;
307 entry = handler->data;
308 handler = g_slist_next (handler);
309 entry->func (category, level, file, function, line, object, &message,
312 g_free (message.message);
313 va_end (message.arguments);
317 * gst_debug_message_get:
318 * @message: a debug message
320 * Gets the string representation of a #GstDebugMessage. This function is used
321 * in debug handlers to extract the message.
323 * Returns: the string representation of a #GstDebugMessage.
326 gst_debug_message_get (GstDebugMessage * message)
328 if (message->message == NULL) {
329 message->message = g_strdup_vprintf (message->format, message->arguments);
331 return message->message;
336 gst_debug_print_object (gpointer ptr)
338 GObject *object = (GObject *) ptr;
341 /* This is a cute trick to detect unmapped memory, but is unportable,
342 * slow, screws around with madvise, and not actually that useful. */
346 ret = madvise ((void *) ((unsigned long) ptr & (~0xfff)), 4096, 0);
347 if (ret == -1 && errno == ENOMEM) {
348 buffer = g_strdup_printf ("%p (unmapped memory)", ptr);
353 /* nicely printed object */
354 if (object == NULL) {
355 return g_strdup ("(NULL)");
357 if (*(GType *) ptr == GST_TYPE_CAPS) {
358 return gst_caps_to_string ((GstCaps *) ptr);
360 if (*(GType *) ptr == GST_TYPE_STRUCTURE) {
361 return gst_structure_to_string ((GstStructure *) ptr);
364 if (*(guint32 *) ptr == 0xffffffff) {
365 return g_strdup_printf ("<poisoned@%p>", ptr);
368 if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
369 return g_strdup_printf ("<%s:%s>", GST_DEBUG_PAD_NAME (object));
371 if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
372 return g_strdup_printf ("<%s>", GST_OBJECT_NAME (object));
374 if (G_IS_OBJECT (object)) {
375 return g_strdup_printf ("<%s@%p>", G_OBJECT_TYPE_NAME (object), object);
378 return g_strdup_printf ("%p", ptr);
382 * gst_debug_construct_term_color:
383 * @colorinfo: the color info
385 * Constructs a string that can be used for getting the desired color in color
387 * You need to free the string after use.
389 * Returns: a string containing the color definition
392 gst_debug_construct_term_color (guint colorinfo)
397 color = g_string_new ("\033[00");
399 if (colorinfo & GST_DEBUG_BOLD) {
400 g_string_append (color, ";01");
402 if (colorinfo & GST_DEBUG_UNDERLINE) {
403 g_string_append (color, ";04");
405 if (colorinfo & GST_DEBUG_FG_MASK) {
406 g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK);
408 if (colorinfo & GST_DEBUG_BG_MASK) {
409 g_string_append_printf (color, ";4%1d",
410 (colorinfo & GST_DEBUG_BG_MASK) >> 4);
412 g_string_append (color, "m");
415 g_string_free (color, FALSE);
420 * gst_debug_log_default:
421 * @category: category to log
422 * @level: level of the message
423 * @file: the file that emitted the message, usually the __FILE__ identifier
424 * @function: the function that emitted the message
425 * @line: the line from that the message was emitted, usually __LINE__
426 * @message: the actual message
427 * @object: the object this message relates to or NULL if none
428 * @unused: an unused variable, reserved for some user_data.
430 * The default logging handler used by GStreamer. Logging functions get called
431 * whenever a macro like GST_DEBUG or similar is used. This function outputs the
432 * message and additional info using the glib error handler.
433 * You can add other handlers by using #gst_debug_add_log_function.
434 * And you can remove this handler by calling
435 * gst_debug_remove_log_function (gst_debug_log_default);
438 gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level,
439 const gchar * file, const gchar * function, gint line,
440 GObject * object, GstDebugMessage * message, gpointer unused)
448 if (level > gst_debug_category_get_threshold (category))
454 if (gst_debug_is_colored ()) {
456 gst_debug_construct_term_color (gst_debug_category_get_color
459 pidcolor = g_strdup_printf ("\033[3%1dm", pid % 6 + 31);
461 color = g_strdup ("");
463 pidcolor = g_strdup ("");
466 obj = object ? gst_debug_print_object (object) : g_strdup ("");
468 g_printerr ("%s %s%15s%s(%s%5d%s) %s%s(%d):%s:%s%s %s\n",
469 gst_debug_level_get_name (level),
470 color, gst_debug_category_get_name (category), clear,
471 pidcolor, pid, clear,
472 color, file, line, function, obj, clear, gst_debug_message_get (message));
480 * gst_debug_level_get_name:
481 * @level: the level to get the name for
483 * Get the string trepresentation of a debugging level
488 gst_debug_level_get_name (GstDebugLevel level)
493 case GST_LEVEL_ERROR:
495 case GST_LEVEL_WARNING:
499 case GST_LEVEL_DEBUG:
504 g_warning ("invalid level specified for gst_debug_level_get_name");
510 * gst_debug_add_log_function:
511 * @func: the function to use
514 * Adds the logging function to the list of logging functions.
515 * Be sure to use G_GNUC_NO_INSTRUMENT on that function, it is needed.
518 gst_debug_add_log_function (GstLogFunction func, gpointer data)
523 g_return_if_fail (func != NULL);
525 entry = g_new (LogFuncEntry, 1);
527 entry->user_data = data;
528 /* FIXME: we leak the old list here - other threads might access it right now
529 * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv,
530 * but that is waaay costly.
531 * It'd probably be clever to use some kind of RCU here, but I don't know
532 * anything about that.
534 g_static_mutex_lock (&__log_func_mutex);
535 list = g_slist_copy (__log_functions);
536 __log_functions = g_slist_prepend (list, entry);
537 g_static_mutex_unlock (&__log_func_mutex);
539 GST_DEBUG ("prepended log function %p (user data %p) to log functions",
544 gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func)
546 gpointer entryfunc = ((LogFuncEntry *) entry)->func;
548 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;
560 gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data)
566 g_static_mutex_lock (&__log_func_mutex);
567 new = __log_functions;
568 while ((found = g_slist_find_custom (new, data, func))) {
569 if (new == __log_functions) {
570 new = g_slist_copy (new);
573 g_free (found->data);
574 new = g_slist_delete_link (new, found);
577 /* FIXME: We leak the old list here. See _add_log_function for why. */
578 __log_functions = new;
579 g_static_mutex_unlock (&__log_func_mutex);
585 * gst_debug_remove_log_function:
586 * @func: the log function to remove
588 * Removes all registrered instances of the given logging functions.
590 * Returns: How many instances of the function were removed
593 gst_debug_remove_log_function (GstLogFunction func)
597 g_return_val_if_fail (func != NULL, 0);
600 gst_debug_remove_with_compare_func
601 (gst_debug_compare_log_function_by_func, func);
602 GST_DEBUG ("removed log function %p %d times from log function list", func,
609 * gst_debug_remove_log_function_by_data:
610 * @data: user data of the log function to remove
612 * Removes all registrered instances of log functions with the given user data.
614 * Returns: How many instances of the function were removed
617 gst_debug_remove_log_function_by_data (gpointer data)
622 gst_debug_remove_with_compare_func
623 (gst_debug_compare_log_function_by_data, data);
625 ("removed %d log functions with user data %p from log function list",
632 * gst_debug_set_colored:
633 * @colored: Whether to use colored output or not
635 * Sets or unsets the use of coloured debugging output.
638 gst_debug_set_colored (gboolean colored)
640 gst_atomic_int_set (&__use_color, colored ? 1 : 0);
644 * gst_debug_is_colored:
646 * Checks if the debugging output should be colored.
648 * Returns: TRUE, if the debug output should be colored.
651 gst_debug_is_colored (void)
653 return gst_atomic_int_read (&__use_color) == 0 ? FALSE : TRUE;
657 * gst_debug_set_active:
658 * @active: Whether to use debugging output or not
660 * If activated, debugging messages are sent to the debugging
662 * It makes sense to deactivate it for speed issues.
663 * <note><para>This function is not threadsafe. It makes sense to only call it
664 * during initialization.</para></note>
667 gst_debug_set_active (gboolean active)
669 __gst_debug_enabled = active;
673 * gst_debug_is_active:
675 * Checks if debugging output is activated.
677 * Returns: TRUE, if debugging is activated
680 gst_debug_is_active (void)
682 return __gst_debug_enabled;
686 * gst_debug_set_default_threshold:
687 * @level: level to set
689 * Sets the default threshold to the given level and updates all categories to
690 * use this threshold.
693 gst_debug_set_default_threshold (GstDebugLevel level)
695 gst_atomic_int_set (&__default_level, level);
696 gst_debug_reset_all_thresholds ();
700 * gst_debug_get_default_threshold:
702 * Returns the default threshold that is used for new categories.
704 * Returns: the default threshold level
707 gst_debug_get_default_threshold (void)
709 return (GstDebugLevel) gst_atomic_int_read (&__default_level);
712 gst_debug_reset_threshold (gpointer category, gpointer unused)
714 GstDebugCategory *cat = (GstDebugCategory *) category;
717 g_static_mutex_lock (&__level_name_mutex);
720 LevelNameEntry *entry = walk->data;
722 walk = g_slist_next (walk);
723 if (g_pattern_match_string (entry->pat, cat->name)) {
724 GST_LOG ("category %s matches pattern %p - gets set to level %d",
725 cat->name, entry->pat, entry->level);
726 gst_debug_category_set_threshold (cat, entry->level);
730 gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
733 g_static_mutex_unlock (&__level_name_mutex);
736 gst_debug_reset_all_thresholds (void)
738 g_static_mutex_lock (&__cat_mutex);
739 g_slist_foreach (__categories, gst_debug_reset_threshold, NULL);
740 g_static_mutex_unlock (&__cat_mutex);
743 for_each_threshold_by_entry (gpointer data, gpointer user_data)
745 GstDebugCategory *cat = (GstDebugCategory *) data;
746 LevelNameEntry *entry = (LevelNameEntry *) user_data;
748 if (g_pattern_match_string (entry->pat, cat->name)) {
749 GST_LOG ("category %s matches pattern %p - gets set to level %d",
750 cat->name, entry->pat, entry->level);
751 gst_debug_category_set_threshold (cat, entry->level);
756 * gst_debug_set_threshold_for_name:
757 * @name: name of the categories to set
758 * @level: level to set them to
760 * Sets all categories which match the gven glob style pattern to the given
764 gst_debug_set_threshold_for_name (const gchar * name, GstDebugLevel level)
767 LevelNameEntry *entry;
769 g_return_if_fail (name != NULL);
771 pat = g_pattern_spec_new (name);
772 entry = g_new (LevelNameEntry, 1);
774 entry->level = level;
775 g_static_mutex_lock (&__level_name_mutex);
776 __level_name = g_slist_prepend (__level_name, entry);
777 g_static_mutex_unlock (&__level_name_mutex);
778 g_static_mutex_lock (&__cat_mutex);
779 g_slist_foreach (__categories, for_each_threshold_by_entry, entry);
780 g_static_mutex_unlock (&__cat_mutex);
784 * gst_debug_unset_threshold_for_name:
785 * @name: name of the categories to set
787 * Resets all categories with the given name back to the default level.
790 gst_debug_unset_threshold_for_name (const gchar * name)
795 g_return_if_fail (name != NULL);
797 pat = g_pattern_spec_new (name);
798 g_static_mutex_lock (&__level_name_mutex);
800 /* improve this if you want, it's mighty slow */
802 LevelNameEntry *entry = walk->data;
804 if (g_pattern_spec_equal (entry->pat, pat)) {
805 __level_name = g_slist_remove_link (__level_name, walk);
806 g_pattern_spec_free (entry->pat);
808 g_slist_free_1 (walk);
812 g_static_mutex_unlock (&__level_name_mutex);
813 g_pattern_spec_free (pat);
814 gst_debug_reset_all_thresholds ();
818 _gst_debug_category_new (gchar * name, guint color, gchar * description)
820 GstDebugCategory *cat;
822 g_return_val_if_fail (name != NULL, NULL);
824 cat = g_new (GstDebugCategory, 1);
825 cat->name = g_strdup (name);
827 if (description != NULL) {
828 cat->description = g_strdup (description);
830 cat->description = g_strdup ("no description");
832 cat->threshold = g_new (GstAtomicInt, 1);
833 gst_atomic_int_init (cat->threshold, 0);
834 gst_debug_reset_threshold (cat, NULL);
836 /* add to category list */
837 g_static_mutex_lock (&__cat_mutex);
838 __categories = g_slist_prepend (__categories, cat);
839 g_static_mutex_unlock (&__cat_mutex);
845 * gst_debug_category_free:
846 * @category: #GstDebugCategory to free.
848 * Removes and frees the category and all associated resources.
851 gst_debug_category_free (GstDebugCategory * category)
853 if (category == NULL)
856 /* remove from category list */
857 g_static_mutex_lock (&__cat_mutex);
858 __categories = g_slist_remove (__categories, category);
859 g_static_mutex_unlock (&__cat_mutex);
861 g_free ((gpointer) category->name);
862 g_free ((gpointer) category->description);
863 gst_atomic_int_destroy (category->threshold);
864 g_free (category->threshold);
869 * gst_debug_category_set_threshold:
870 * @category: a #GstDebugCategory to set threshold of.
871 * @level: the #GstDebugLevel threshold to set.
873 * Sets the threshold of the category to the given level. Debug information will
874 * only be output if the threshold is lower or equal to the level of the
877 * Do not use this function in production code, because other functions may
878 * change the threshold of categories as side effect. It is however a nice
879 * function to use when debugging (even from gdb).
883 gst_debug_category_set_threshold (GstDebugCategory * category,
886 g_return_if_fail (category != NULL);
888 gst_atomic_int_set (category->threshold, level);
892 * gst_debug_category_reset_threshold:
893 * @category: a #GstDebugCategory to reset threshold of.
895 * Resets the threshold of the category to the default level. Debug information
896 * will only be output if the threshold is lower or equal to the level of the
898 * Use this function to set the threshold back to where it was after using
899 * gst_debug_category_set_threshold().
902 gst_debug_category_reset_threshold (GstDebugCategory * category)
904 gst_debug_reset_threshold (category, NULL);
908 * gst_debug_category_get_threshold:
909 * @category: a #GstDebugCategory to get threshold of.
911 * Returns the threshold of a #GstCategory.
913 * Returns: the #GstDebugLevel that is used as threshold.
916 gst_debug_category_get_threshold (GstDebugCategory * category)
918 return gst_atomic_int_read (category->threshold);
922 * gst_debug_category_get_name:
923 * @category: a #GstDebugCategory to get name of.
925 * Returns the name of a debug category.
927 * Returns: the name of the category.
930 gst_debug_category_get_name (GstDebugCategory * category)
932 return category->name;
936 * gst_debug_category_get_color:
937 * @category: a #GstDebugCategory to get the color of.
939 * Returns the color of a debug category used when printing output in this
942 * Returns: the color of the category.
945 gst_debug_category_get_color (GstDebugCategory * category)
947 return category->color;
951 * gst_debug_category_get_description:
952 * @category: a #GstDebugCategory to get the description of.
954 * Returns the description of a debug category.
956 * Returns: the description of the category.
959 gst_debug_category_get_description (GstDebugCategory * category)
961 return category->description;
965 * gst_debug_get_all_categories:
967 * Returns a snapshot of a all categories that are currently in use . This list
968 * may change anytime.
969 * The caller has to free the list after use.
970 * <emphasis>This function is not threadsafe, so only use it while only the
971 * main thread is running.</emphasis>
973 * Returns: the list of categories
976 gst_debug_get_all_categories (void)
980 g_static_mutex_lock (&__cat_mutex);
981 ret = g_slist_copy (__categories);
982 g_static_mutex_unlock (&__cat_mutex);
987 /*** FUNCTION POINTERS ********************************************************/
989 GHashTable *__gst_function_pointers = NULL;
991 _gst_debug_nameof_funcptr (void *ptr)
992 G_GNUC_NO_INSTRUMENT;
994 /* This function MUST NOT return NULL */
995 const gchar *_gst_debug_nameof_funcptr (void *ptr)
1003 if (__gst_function_pointers
1004 && (ptrname = g_hash_table_lookup (__gst_function_pointers, ptr))) {
1007 /* we need to create an entry in the hash table for this one so we don't leak
1010 if (dladdr (ptr, &dlinfo) && dlinfo.dli_sname) {
1011 gchar *name = g_strdup (dlinfo.dli_sname);
1013 _gst_debug_register_funcptr (ptr, name);
1018 gchar *name = g_strdup_printf ("%p", ptr);
1020 _gst_debug_register_funcptr (ptr, name);
1026 _gst_debug_register_funcptr (void *ptr, gchar * ptrname)
1028 if (!__gst_function_pointers)
1029 __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal);
1030 if (!g_hash_table_lookup (__gst_function_pointers, ptr))
1031 g_hash_table_insert (__gst_function_pointers, ptr, ptrname);
1036 #ifdef HAVE_PRINTF_EXTENSION
1038 _gst_info_printf_extension (FILE * stream, const struct printf_info *info,
1039 const void *const *args)
1046 ptr = *(void **) args[0];
1048 buffer = gst_debug_print_object (ptr);
1049 len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
1057 _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n,
1061 argtypes[0] = PA_POINTER;
1064 #endif /* HAVE_PRINTF_EXTENSION */
1066 #endif /* GST_DISABLE_GST_DEBUG */
1068 #ifdef GST_ENABLE_FUNC_INSTRUMENTATION
1069 /* FIXME make this thread specific */
1070 static GSList *stack_trace = NULL;
1073 __cyg_profile_func_enter (void *this_fn, void *call_site)
1074 G_GNUC_NO_INSTRUMENT;
1075 void __cyg_profile_func_enter (void *this_fn, void *call_site)
1077 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1078 gchar *site = _gst_debug_nameof_funcptr (call_site);
1080 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "entering function %s from %s", name,
1083 g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)",
1084 this_fn, name, call_site, site));
1091 __cyg_profile_func_exit (void *this_fn, void *call_site)
1092 G_GNUC_NO_INSTRUMENT;
1093 void __cyg_profile_func_exit (void *this_fn, void *call_site)
1095 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1097 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "leaving function %s", name);
1098 g_free (stack_trace->data);
1099 stack_trace = g_slist_delete_link (stack_trace, stack_trace);
1105 gst_debug_print_stack_trace (void)
1107 GSList *walk = stack_trace;
1111 walk = g_slist_next (walk);
1114 gchar *name = (gchar *) walk->data;
1116 g_print ("#%-2d %s\n", count++, name);
1118 walk = g_slist_next (walk);
1123 gst_debug_print_stack_trace (void)
1125 /* nothing because it's compiled out */
1128 #endif /* GST_ENABLE_FUNC_INTSTRUMENTATION */