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"
27 #ifndef GST_DISABLE_GST_DEBUG
32 #ifdef HAVE_PRINTF_EXTENSION
35 #include <stdio.h> /* fprintf */
39 #include <string.h> /* G_VA_COPY */
40 #include "gstelement.h"
42 #include "gstscheduler.h"
43 #include "gst_private.h"
44 #include "gstatomic_impl.h"
46 #include <valgrind/valgrind.h>
49 /* underscore is to prevent conflict with GST_CAT_DEBUG define */
50 GST_DEBUG_CATEGORY_STATIC (_GST_CAT_DEBUG);
51 /* time of initialization, so we get useful debugging output times */
52 GstClockTime start_time;
56 #include <rld_interface.h>
57 typedef struct DL_INFO
59 const char *dli_fname;
61 const char *dli_sname;
69 #define _RLD_DLADDR 14
70 int dladdr (void *address, Dl_info * dl);
73 dladdr (void *address, Dl_info * dl)
77 v = _rld_new_interface (_RLD_DLADDR, address, dl);
83 static void gst_debug_reset_threshold (gpointer category, gpointer unused);
84 static void gst_debug_reset_all_thresholds (void);
86 #ifdef HAVE_PRINTF_EXTENSION
87 static int _gst_info_printf_extension (FILE * stream,
88 const struct printf_info *info, const void *const *args);
89 static int _gst_info_printf_extension_arginfo (const struct printf_info *info,
90 size_t n, int *argtypes);
93 struct _GstDebugMessage
100 /* list of all name/level pairs from --gst-debug and GST_DEBUG */
101 static GStaticMutex __level_name_mutex = G_STATIC_MUTEX_INIT;
102 static GSList *__level_name = NULL;
110 /* list of all categories */
111 static GStaticMutex __cat_mutex = G_STATIC_MUTEX_INIT;
112 static GSList *__categories = NULL;
114 /* all registered debug handlers */
121 static GStaticMutex __log_func_mutex = G_STATIC_MUTEX_INIT;
122 static GSList *__log_functions = NULL;
124 static GstAtomicInt __default_level;
125 static GstAtomicInt __use_color;
126 gboolean __gst_debug_enabled = TRUE;
129 GstDebugCategory *GST_CAT_DEFAULT = NULL;
131 GstDebugCategory *GST_CAT_GST_INIT = NULL;
132 GstDebugCategory *GST_CAT_COTHREADS = NULL;
133 GstDebugCategory *GST_CAT_COTHREAD_SWITCH = NULL;
134 GstDebugCategory *GST_CAT_AUTOPLUG = NULL;
135 GstDebugCategory *GST_CAT_AUTOPLUG_ATTEMPT = NULL;
136 GstDebugCategory *GST_CAT_PARENTAGE = NULL;
137 GstDebugCategory *GST_CAT_STATES = NULL;
138 GstDebugCategory *GST_CAT_PLANNING = NULL;
139 GstDebugCategory *GST_CAT_SCHEDULING = NULL;
141 /* FIXME: remove GST_CAT_DATAFLOW in 0.9 */
142 GstDebugCategory *GST_CAT_DATAFLOW = NULL;
143 GstDebugCategory *GST_CAT_BUFFER = NULL;
144 GstDebugCategory *GST_CAT_CAPS = NULL;
145 GstDebugCategory *GST_CAT_CLOCK = NULL;
146 GstDebugCategory *GST_CAT_ELEMENT_PADS = NULL;
147 GstDebugCategory *GST_CAT_PADS = NULL;
148 GstDebugCategory *GST_CAT_PIPELINE = NULL;
149 GstDebugCategory *GST_CAT_PLUGIN_LOADING = NULL;
150 GstDebugCategory *GST_CAT_PLUGIN_INFO = NULL;
151 GstDebugCategory *GST_CAT_PROPERTIES = NULL;
152 GstDebugCategory *GST_CAT_THREAD = NULL;
153 GstDebugCategory *GST_CAT_TYPES = NULL;
154 GstDebugCategory *GST_CAT_XML = NULL;
155 GstDebugCategory *GST_CAT_NEGOTIATION = NULL;
156 GstDebugCategory *GST_CAT_REFCOUNTING = NULL;
157 GstDebugCategory *GST_CAT_ERROR_SYSTEM = NULL;
158 GstDebugCategory *GST_CAT_EVENT = NULL;
159 GstDebugCategory *GST_CAT_PARAMS = NULL;
160 GstDebugCategory *GST_CAT_CALL_TRACE = NULL;
161 GstDebugCategory *GST_CAT_SEEK = NULL;
162 GstDebugCategory *GST_CAT_SIGNAL = NULL;
163 GstDebugCategory *GST_CAT_PROBE = NULL;
165 /* FIXME: export this? */
167 __gst_in_valgrind (void)
175 in_valgrind = GST_VG_UNCHECKED;
177 if (in_valgrind == GST_VG_UNCHECKED) {
179 if (RUNNING_ON_VALGRIND) {
180 GST_CAT_INFO (GST_CAT_GST_INIT, "we're running inside valgrind");
182 ("GStreamer has detected that it is running inside valgrind.");
184 ("It might now take different code paths to ease debugging.");
185 VALGRIND_PRINTF ("Of course, this may also lead to different bugs.");
186 in_valgrind = GST_VG_INSIDE;
188 GST_CAT_LOG (GST_CAT_GST_INIT, "not doing extra valgrind stuff");
189 in_valgrind = GST_VG_NO_VALGRIND;
192 in_valgrind = GST_VG_NO_VALGRIND;
194 g_assert (in_valgrind == GST_VG_NO_VALGRIND ||
195 in_valgrind == GST_VG_INSIDE);
197 return (in_valgrind == GST_VG_INSIDE) ? TRUE : FALSE;
203 * Initializes the debugging system.
204 * Normally you don't want to call this, because gst_init does it for you.
207 _gst_debug_init (void)
211 gst_atomic_int_init (&__default_level, GST_LEVEL_DEFAULT);
212 gst_atomic_int_init (&__use_color, 1);
214 /* get time we started for debugging messages */
215 g_get_current_time (¤t);
216 start_time = GST_TIMEVAL_TO_TIME (current);
218 #ifdef HAVE_PRINTF_EXTENSION
219 register_printf_function (GST_PTR_FORMAT[0], _gst_info_printf_extension,
220 _gst_info_printf_extension_arginfo);
223 /* do NOT use a single debug function before this line has been run */
224 GST_CAT_DEFAULT = _gst_debug_category_new ("default",
225 GST_DEBUG_UNDERLINE, NULL);
226 _GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG",
227 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, "debugging subsystem");
229 gst_debug_add_log_function (gst_debug_log_default, NULL);
231 /* FIXME: add descriptions here */
232 GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT",
233 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
234 GST_CAT_COTHREADS = _gst_debug_category_new ("GST_COTHREADS",
235 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL);
236 GST_CAT_COTHREAD_SWITCH = _gst_debug_category_new ("GST_COTHREAD_SWITCH",
237 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_GREEN, NULL);
238 GST_CAT_AUTOPLUG = _gst_debug_category_new ("GST_AUTOPLUG",
239 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
240 GST_CAT_AUTOPLUG_ATTEMPT = _gst_debug_category_new ("GST_AUTOPLUG_ATTEMPT",
241 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN | GST_DEBUG_BG_BLUE, NULL);
242 GST_CAT_PARENTAGE = _gst_debug_category_new ("GST_PARENTAGE",
243 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
244 GST_CAT_STATES = _gst_debug_category_new ("GST_STATES",
245 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
246 GST_CAT_PLANNING = _gst_debug_category_new ("GST_PLANNING",
247 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL);
248 GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING",
249 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL);
250 /* FIXME: remove GST_CAT_DATAFLOW in 0.9 */
251 GST_CAT_DATAFLOW = _gst_debug_category_new ("GST_DATAFLOW",
252 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, "dataflow inside pads");
253 GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER",
254 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL);
255 GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS",
256 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
257 GST_CAT_CLOCK = _gst_debug_category_new ("GST_CLOCK",
258 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, NULL);
259 GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS",
260 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
261 GST_CAT_PADS = _gst_debug_category_new ("GST_PADS",
262 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
263 GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE",
264 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
265 GST_CAT_PLUGIN_LOADING = _gst_debug_category_new ("GST_PLUGIN_LOADING",
266 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
267 GST_CAT_PLUGIN_INFO = _gst_debug_category_new ("GST_PLUGIN_INFO",
268 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
269 GST_CAT_PROPERTIES = _gst_debug_category_new ("GST_PROPERTIES",
270 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLUE, NULL);
271 GST_CAT_THREAD = _gst_debug_category_new ("GST_THREAD",
272 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
273 GST_CAT_TYPES = _gst_debug_category_new ("GST_TYPES",
274 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
275 GST_CAT_XML = _gst_debug_category_new ("GST_XML",
276 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
277 GST_CAT_NEGOTIATION = _gst_debug_category_new ("GST_NEGOTIATION",
278 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
279 GST_CAT_REFCOUNTING = _gst_debug_category_new ("GST_REFCOUNTING",
280 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE | GST_DEBUG_BG_GREEN, NULL);
281 GST_CAT_ERROR_SYSTEM = _gst_debug_category_new ("GST_ERROR_SYSTEM",
282 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_WHITE, NULL);
284 GST_CAT_EVENT = _gst_debug_category_new ("GST_EVENT",
285 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
286 GST_CAT_PARAMS = _gst_debug_category_new ("GST_PARAMS",
287 GST_DEBUG_BOLD | GST_DEBUG_FG_BLACK | GST_DEBUG_BG_YELLOW, NULL);
288 GST_CAT_CALL_TRACE = _gst_debug_category_new ("GST_CALL_TRACE",
289 GST_DEBUG_BOLD, NULL);
290 /* FIXME: fold back to GST_CAT_EVENT in 0.9 */
291 GST_CAT_SEEK = _gst_debug_category_new ("GST_SEEK",
292 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, "plugins reacting to seek events");
293 GST_CAT_SIGNAL = _gst_debug_category_new ("GST_SIGNAL",
294 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
295 GST_CAT_PROBE = _gst_debug_category_new ("GST_PROBE",
296 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, "pad probes");
299 /* print out the valgrind message if we're in valgrind */
300 __gst_in_valgrind ();
303 /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */
304 #define GST_CAT_DEFAULT _GST_CAT_DEBUG
308 * @category: category to log
309 * @level: level of the message is in
310 * @file: the file that emitted the message, usually the __FILE__ identifier
311 * @function: the function that emitted the message
312 * @line: the line from that the message was emitted, usually __LINE__
313 * @object: the object this message relates to or NULL if none
314 * @format: a printf style format string
315 * @...: optional arguments for the format
317 * Logs the given message using the currently registered debugging handlers.
320 gst_debug_log (GstDebugCategory * category, GstDebugLevel level,
321 const gchar * file, const gchar * function, gint line,
322 GObject * object, const gchar * format, ...)
326 va_start (var_args, format);
327 gst_debug_log_valist (category, level, file, function, line, object, format,
333 * gst_debug_log_valist:
334 * @category: category to log
335 * @level: level of the message is in
336 * @file: the file that emitted the message, usually the __FILE__ identifier
337 * @function: the function that emitted the message
338 * @line: the line from that the message was emitted, usually __LINE__
339 * @object: the object this message relates to or NULL if none
340 * @format: a printf style format string
341 * @args: optional arguments for the format
343 * Logs the given message using the currently registered debugging handlers.
346 gst_debug_log_valist (GstDebugCategory * category, GstDebugLevel level,
347 const gchar * file, const gchar * function, gint line,
348 GObject * object, const gchar * format, va_list args)
350 GstDebugMessage message;
354 g_return_if_fail (category != NULL);
355 g_return_if_fail (file != NULL);
356 g_return_if_fail (function != NULL);
357 g_return_if_fail (format != NULL);
359 message.message = NULL;
360 message.format = format;
361 G_VA_COPY (message.arguments, args);
363 handler = __log_functions;
365 entry = handler->data;
366 handler = g_slist_next (handler);
367 entry->func (category, level, file, function, line, object, &message,
370 g_free (message.message);
371 va_end (message.arguments);
375 * gst_debug_message_get:
376 * @message: a debug message
378 * Gets the string representation of a #GstDebugMessage. This function is used
379 * in debug handlers to extract the message.
381 * Returns: the string representation of a #GstDebugMessage.
384 gst_debug_message_get (GstDebugMessage * message)
386 if (message->message == NULL) {
387 message->message = g_strdup_vprintf (message->format, message->arguments);
389 return message->message;
394 gst_debug_print_object (gpointer ptr)
396 GObject *object = (GObject *) ptr;
399 /* This is a cute trick to detect unmapped memory, but is unportable,
400 * slow, screws around with madvise, and not actually that useful. */
404 ret = madvise ((void *) ((unsigned long) ptr & (~0xfff)), 4096, 0);
405 if (ret == -1 && errno == ENOMEM) {
406 buffer = g_strdup_printf ("%p (unmapped memory)", ptr);
411 /* nicely printed object */
412 if (object == NULL) {
413 return g_strdup ("(NULL)");
415 if (*(GType *) ptr == GST_TYPE_CAPS) {
416 return gst_caps_to_string ((GstCaps *) ptr);
418 if (*(GType *) ptr == GST_TYPE_STRUCTURE) {
419 return gst_structure_to_string ((GstStructure *) ptr);
422 if (*(guint32 *) ptr == 0xffffffff) {
423 return g_strdup_printf ("<poisoned@%p>", ptr);
426 if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
427 return g_strdup_printf ("<%s:%s>", GST_DEBUG_PAD_NAME (object));
429 if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
430 return g_strdup_printf ("<%s>", GST_OBJECT_NAME (object));
432 if (G_IS_OBJECT (object)) {
433 return g_strdup_printf ("<%s@%p>", G_OBJECT_TYPE_NAME (object), object);
436 return g_strdup_printf ("%p", ptr);
440 * gst_debug_construct_term_color:
441 * @colorinfo: the color info
443 * Constructs a string that can be used for getting the desired color in color
445 * You need to free the string after use.
447 * Returns: a string containing the color definition
450 gst_debug_construct_term_color (guint colorinfo)
455 color = g_string_new ("\033[00");
457 if (colorinfo & GST_DEBUG_BOLD) {
458 g_string_append (color, ";01");
460 if (colorinfo & GST_DEBUG_UNDERLINE) {
461 g_string_append (color, ";04");
463 if (colorinfo & GST_DEBUG_FG_MASK) {
464 g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK);
466 if (colorinfo & GST_DEBUG_BG_MASK) {
467 g_string_append_printf (color, ";4%1d",
468 (colorinfo & GST_DEBUG_BG_MASK) >> 4);
470 g_string_append (color, "m");
473 g_string_free (color, FALSE);
478 * gst_debug_log_default:
479 * @category: category to log
480 * @level: level of the message
481 * @file: the file that emitted the message, usually the __FILE__ identifier
482 * @function: the function that emitted the message
483 * @line: the line from that the message was emitted, usually __LINE__
484 * @message: the actual message
485 * @object: the object this message relates to or NULL if none
486 * @unused: an unused variable, reserved for some user_data.
488 * The default logging handler used by GStreamer. Logging functions get called
489 * whenever a macro like GST_DEBUG or similar is used. This function outputs the
490 * message and additional info using the glib error handler.
491 * You can add other handlers by using #gst_debug_add_log_function.
492 * And you can remove this handler by calling
493 * gst_debug_remove_log_function (gst_debug_log_default);
496 gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level,
497 const gchar * file, const gchar * function, gint line,
498 GObject * object, GstDebugMessage * message, gpointer unused)
506 GstClockTime elapsed;
508 if (level > gst_debug_category_get_threshold (category))
514 if (gst_debug_is_colored ()) {
516 gst_debug_construct_term_color (gst_debug_category_get_color
519 pidcolor = g_strdup_printf ("\033[3%1dm", pid % 6 + 31);
521 color = g_strdup ("");
523 pidcolor = g_strdup ("");
526 obj = object ? gst_debug_print_object (object) : g_strdup ("");
528 g_get_current_time (&now);
529 elapsed = GST_TIMEVAL_TO_TIME (now) - start_time;
530 g_printerr ("%s (%p - %" GST_TIME_FORMAT
531 ") %s%15s%s(%s%5d%s) %s%s(%d):%s:%s%s %s\n",
532 gst_debug_level_get_name (level), g_thread_self (),
533 GST_TIME_ARGS (elapsed), color,
534 gst_debug_category_get_name (category), clear, pidcolor, pid, clear,
535 color, file, line, function, obj, clear, gst_debug_message_get (message));
543 * gst_debug_level_get_name:
544 * @level: the level to get the name for
546 * Get the string trepresentation of a debugging level
551 gst_debug_level_get_name (GstDebugLevel level)
556 case GST_LEVEL_ERROR:
558 case GST_LEVEL_WARNING:
562 case GST_LEVEL_DEBUG:
567 g_warning ("invalid level specified for gst_debug_level_get_name");
573 * gst_debug_add_log_function:
574 * @func: the function to use
577 * Adds the logging function to the list of logging functions.
578 * Be sure to use G_GNUC_NO_INSTRUMENT on that function, it is needed.
581 gst_debug_add_log_function (GstLogFunction func, gpointer data)
586 g_return_if_fail (func != NULL);
588 entry = g_new (LogFuncEntry, 1);
590 entry->user_data = data;
591 /* FIXME: we leak the old list here - other threads might access it right now
592 * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv,
593 * but that is waaay costly.
594 * It'd probably be clever to use some kind of RCU here, but I don't know
595 * anything about that.
597 g_static_mutex_lock (&__log_func_mutex);
598 list = g_slist_copy (__log_functions);
599 __log_functions = g_slist_prepend (list, entry);
600 g_static_mutex_unlock (&__log_func_mutex);
602 GST_DEBUG ("prepended log function %p (user data %p) to log functions",
607 gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func)
609 gpointer entryfunc = ((LogFuncEntry *) entry)->func;
611 return (entryfunc < func) ? -1 : (entryfunc > func) ? 1 : 0;
615 gst_debug_compare_log_function_by_data (gconstpointer entry, gconstpointer data)
617 gpointer entrydata = ((LogFuncEntry *) entry)->user_data;
619 return (entrydata < data) ? -1 : (entrydata > data) ? 1 : 0;
623 gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data)
629 g_static_mutex_lock (&__log_func_mutex);
630 new = __log_functions;
631 while ((found = g_slist_find_custom (new, data, func))) {
632 if (new == __log_functions) {
633 new = g_slist_copy (new);
636 g_free (found->data);
637 new = g_slist_delete_link (new, found);
640 /* FIXME: We leak the old list here. See _add_log_function for why. */
641 __log_functions = new;
642 g_static_mutex_unlock (&__log_func_mutex);
648 * gst_debug_remove_log_function:
649 * @func: the log function to remove
651 * Removes all registrered instances of the given logging functions.
653 * Returns: How many instances of the function were removed
656 gst_debug_remove_log_function (GstLogFunction func)
660 g_return_val_if_fail (func != NULL, 0);
663 gst_debug_remove_with_compare_func
664 (gst_debug_compare_log_function_by_func, func);
665 GST_DEBUG ("removed log function %p %d times from log function list", func,
672 * gst_debug_remove_log_function_by_data:
673 * @data: user data of the log function to remove
675 * Removes all registrered instances of log functions with the given user data.
677 * Returns: How many instances of the function were removed
680 gst_debug_remove_log_function_by_data (gpointer data)
685 gst_debug_remove_with_compare_func
686 (gst_debug_compare_log_function_by_data, data);
688 ("removed %d log functions with user data %p from log function list",
695 * gst_debug_set_colored:
696 * @colored: Whether to use colored output or not
698 * Sets or unsets the use of coloured debugging output.
701 gst_debug_set_colored (gboolean colored)
703 gst_atomic_int_set (&__use_color, colored ? 1 : 0);
707 * gst_debug_is_colored:
709 * Checks if the debugging output should be colored.
711 * Returns: TRUE, if the debug output should be colored.
714 gst_debug_is_colored (void)
716 return gst_atomic_int_read (&__use_color) == 0 ? FALSE : TRUE;
720 * gst_debug_set_active:
721 * @active: Whether to use debugging output or not
723 * If activated, debugging messages are sent to the debugging
725 * It makes sense to deactivate it for speed issues.
726 * <note><para>This function is not threadsafe. It makes sense to only call it
727 * during initialization.</para></note>
730 gst_debug_set_active (gboolean active)
732 __gst_debug_enabled = active;
736 * gst_debug_is_active:
738 * Checks if debugging output is activated.
740 * Returns: TRUE, if debugging is activated
743 gst_debug_is_active (void)
745 return __gst_debug_enabled;
749 * gst_debug_set_default_threshold:
750 * @level: level to set
752 * Sets the default threshold to the given level and updates all categories to
753 * use this threshold.
756 gst_debug_set_default_threshold (GstDebugLevel level)
758 gst_atomic_int_set (&__default_level, level);
759 gst_debug_reset_all_thresholds ();
763 * gst_debug_get_default_threshold:
765 * Returns the default threshold that is used for new categories.
767 * Returns: the default threshold level
770 gst_debug_get_default_threshold (void)
772 return (GstDebugLevel) gst_atomic_int_read (&__default_level);
775 gst_debug_reset_threshold (gpointer category, gpointer unused)
777 GstDebugCategory *cat = (GstDebugCategory *) category;
780 g_static_mutex_lock (&__level_name_mutex);
783 LevelNameEntry *entry = walk->data;
785 walk = g_slist_next (walk);
786 if (g_pattern_match_string (entry->pat, cat->name)) {
787 GST_LOG ("category %s matches pattern %p - gets set to level %d",
788 cat->name, entry->pat, entry->level);
789 gst_debug_category_set_threshold (cat, entry->level);
793 gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
796 g_static_mutex_unlock (&__level_name_mutex);
799 gst_debug_reset_all_thresholds (void)
801 g_static_mutex_lock (&__cat_mutex);
802 g_slist_foreach (__categories, gst_debug_reset_threshold, NULL);
803 g_static_mutex_unlock (&__cat_mutex);
806 for_each_threshold_by_entry (gpointer data, gpointer user_data)
808 GstDebugCategory *cat = (GstDebugCategory *) data;
809 LevelNameEntry *entry = (LevelNameEntry *) user_data;
811 if (g_pattern_match_string (entry->pat, cat->name)) {
812 GST_LOG ("category %s matches pattern %p - gets set to level %d",
813 cat->name, entry->pat, entry->level);
814 gst_debug_category_set_threshold (cat, entry->level);
819 * gst_debug_set_threshold_for_name:
820 * @name: name of the categories to set
821 * @level: level to set them to
823 * Sets all categories which match the given glob style pattern to the given
827 gst_debug_set_threshold_for_name (const gchar * name, GstDebugLevel level)
830 LevelNameEntry *entry;
832 g_return_if_fail (name != NULL);
834 pat = g_pattern_spec_new (name);
835 entry = g_new (LevelNameEntry, 1);
837 entry->level = level;
838 g_static_mutex_lock (&__level_name_mutex);
839 __level_name = g_slist_prepend (__level_name, entry);
840 g_static_mutex_unlock (&__level_name_mutex);
841 g_static_mutex_lock (&__cat_mutex);
842 g_slist_foreach (__categories, for_each_threshold_by_entry, entry);
843 g_static_mutex_unlock (&__cat_mutex);
847 * gst_debug_unset_threshold_for_name:
848 * @name: name of the categories to set
850 * Resets all categories with the given name back to the default level.
853 gst_debug_unset_threshold_for_name (const gchar * name)
858 g_return_if_fail (name != NULL);
860 pat = g_pattern_spec_new (name);
861 g_static_mutex_lock (&__level_name_mutex);
863 /* improve this if you want, it's mighty slow */
865 LevelNameEntry *entry = walk->data;
867 if (g_pattern_spec_equal (entry->pat, pat)) {
868 __level_name = g_slist_remove_link (__level_name, walk);
869 g_pattern_spec_free (entry->pat);
871 g_slist_free_1 (walk);
875 g_static_mutex_unlock (&__level_name_mutex);
876 g_pattern_spec_free (pat);
877 gst_debug_reset_all_thresholds ();
881 _gst_debug_category_new (gchar * name, guint color, gchar * description)
883 GstDebugCategory *cat;
885 g_return_val_if_fail (name != NULL, NULL);
887 cat = g_new (GstDebugCategory, 1);
888 cat->name = g_strdup (name);
890 if (description != NULL) {
891 cat->description = g_strdup (description);
893 cat->description = g_strdup ("no description");
895 cat->threshold = g_new (GstAtomicInt, 1);
896 gst_atomic_int_init (cat->threshold, 0);
897 gst_debug_reset_threshold (cat, NULL);
899 /* add to category list */
900 g_static_mutex_lock (&__cat_mutex);
901 __categories = g_slist_prepend (__categories, cat);
902 g_static_mutex_unlock (&__cat_mutex);
908 * gst_debug_category_free:
909 * @category: #GstDebugCategory to free.
911 * Removes and frees the category and all associated resources.
914 gst_debug_category_free (GstDebugCategory * category)
916 if (category == NULL)
919 /* remove from category list */
920 g_static_mutex_lock (&__cat_mutex);
921 __categories = g_slist_remove (__categories, category);
922 g_static_mutex_unlock (&__cat_mutex);
924 g_free ((gpointer) category->name);
925 g_free ((gpointer) category->description);
926 gst_atomic_int_destroy (category->threshold);
927 g_free (category->threshold);
932 * gst_debug_category_set_threshold:
933 * @category: a #GstDebugCategory to set threshold of.
934 * @level: the #GstDebugLevel threshold to set.
936 * Sets the threshold of the category to the given level. Debug information will
937 * only be output if the threshold is lower or equal to the level of the
940 * Do not use this function in production code, because other functions may
941 * change the threshold of categories as side effect. It is however a nice
942 * function to use when debugging (even from gdb).
946 gst_debug_category_set_threshold (GstDebugCategory * category,
949 g_return_if_fail (category != NULL);
951 gst_atomic_int_set (category->threshold, level);
955 * gst_debug_category_reset_threshold:
956 * @category: a #GstDebugCategory to reset threshold of.
958 * Resets the threshold of the category to the default level. Debug information
959 * will only be output if the threshold is lower or equal to the level of the
961 * Use this function to set the threshold back to where it was after using
962 * gst_debug_category_set_threshold().
965 gst_debug_category_reset_threshold (GstDebugCategory * category)
967 gst_debug_reset_threshold (category, NULL);
971 * gst_debug_category_get_threshold:
972 * @category: a #GstDebugCategory to get threshold of.
974 * Returns the threshold of a #GstCategory.
976 * Returns: the #GstDebugLevel that is used as threshold.
979 gst_debug_category_get_threshold (GstDebugCategory * category)
981 return gst_atomic_int_read (category->threshold);
985 * gst_debug_category_get_name:
986 * @category: a #GstDebugCategory to get name of.
988 * Returns the name of a debug category.
990 * Returns: the name of the category.
993 gst_debug_category_get_name (GstDebugCategory * category)
995 return category->name;
999 * gst_debug_category_get_color:
1000 * @category: a #GstDebugCategory to get the color of.
1002 * Returns the color of a debug category used when printing output in this
1005 * Returns: the color of the category.
1008 gst_debug_category_get_color (GstDebugCategory * category)
1010 return category->color;
1014 * gst_debug_category_get_description:
1015 * @category: a #GstDebugCategory to get the description of.
1017 * Returns the description of a debug category.
1019 * Returns: the description of the category.
1022 gst_debug_category_get_description (GstDebugCategory * category)
1024 return category->description;
1028 * gst_debug_get_all_categories:
1030 * Returns a snapshot of a all categories that are currently in use . This list
1031 * may change anytime.
1032 * The caller has to free the list after use.
1033 * <emphasis>This function is not threadsafe, so only use it while only the
1034 * main thread is running.</emphasis>
1036 * Returns: the list of categories
1039 gst_debug_get_all_categories (void)
1043 g_static_mutex_lock (&__cat_mutex);
1044 ret = g_slist_copy (__categories);
1045 g_static_mutex_unlock (&__cat_mutex);
1050 /*** FUNCTION POINTERS ********************************************************/
1052 GHashTable *__gst_function_pointers = NULL;
1054 _gst_debug_nameof_funcptr (void *ptr)
1055 G_GNUC_NO_INSTRUMENT;
1057 /* This function MUST NOT return NULL */
1058 const gchar *_gst_debug_nameof_funcptr (void *ptr)
1066 if (__gst_function_pointers
1067 && (ptrname = g_hash_table_lookup (__gst_function_pointers, ptr))) {
1070 /* we need to create an entry in the hash table for this one so we don't leak
1073 if (dladdr (ptr, &dlinfo) && dlinfo.dli_sname) {
1074 gchar *name = g_strdup (dlinfo.dli_sname);
1076 _gst_debug_register_funcptr (ptr, name);
1081 gchar *name = g_strdup_printf ("%p", ptr);
1083 _gst_debug_register_funcptr (ptr, name);
1089 _gst_debug_register_funcptr (void *ptr, gchar * ptrname)
1091 if (!__gst_function_pointers)
1092 __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal);
1093 if (!g_hash_table_lookup (__gst_function_pointers, ptr))
1094 g_hash_table_insert (__gst_function_pointers, ptr, ptrname);
1099 #ifdef HAVE_PRINTF_EXTENSION
1101 _gst_info_printf_extension (FILE * stream, const struct printf_info *info,
1102 const void *const *args)
1109 ptr = *(void **) args[0];
1111 buffer = gst_debug_print_object (ptr);
1112 len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
1120 _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n,
1124 argtypes[0] = PA_POINTER;
1127 #endif /* HAVE_PRINTF_EXTENSION */
1129 #else /* !GST_DISABLE_GST_DEBUG */
1131 gst_debug_remove_log_function (GstLogFunction func)
1137 gst_debug_remove_log_function_by_data (gpointer data)
1143 __gst_in_valgrind (void)
1148 #endif /* GST_DISABLE_GST_DEBUG */
1151 #ifdef GST_ENABLE_FUNC_INSTRUMENTATION
1152 /* FIXME make this thread specific */
1153 static GSList *stack_trace = NULL;
1156 __cyg_profile_func_enter (void *this_fn, void *call_site)
1157 G_GNUC_NO_INSTRUMENT;
1158 void __cyg_profile_func_enter (void *this_fn, void *call_site)
1160 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1161 gchar *site = _gst_debug_nameof_funcptr (call_site);
1163 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "entering function %s from %s", name,
1166 g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)",
1167 this_fn, name, call_site, site));
1174 __cyg_profile_func_exit (void *this_fn, void *call_site)
1175 G_GNUC_NO_INSTRUMENT;
1176 void __cyg_profile_func_exit (void *this_fn, void *call_site)
1178 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1180 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "leaving function %s", name);
1181 g_free (stack_trace->data);
1182 stack_trace = g_slist_delete_link (stack_trace, stack_trace);
1188 gst_debug_print_stack_trace (void)
1190 GSList *walk = stack_trace;
1194 walk = g_slist_next (walk);
1197 gchar *name = (gchar *) walk->data;
1199 g_print ("#%-2d %s\n", count++, name);
1201 walk = g_slist_next (walk);
1206 gst_debug_print_stack_trace (void)
1208 /* nothing because it's compiled out */
1211 #endif /* GST_ENABLE_FUNC_INTSTRUMENTATION */