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.
26 * @short_description: Debugging and logging facillities
27 * @see_also: #GstConfig, #Gst for command line parameters
28 * and environment variables that affect the debugging output.
30 * GStreamer's debugging subsystem is an easy way to get information about what
31 * the application is doing. It is not meant for programming errors. Use GLib
32 * methods (g_warning and friends) for that.
34 * The debugging subsystem works only after GStreamer has been initialized
35 * - for example by calling gst_init().
37 * The debugging subsystem is used to log informational messages while the
38 * application runs. Each messages has some properties attached to it. Among
39 * these properties are the debugging category, the severity (called "level"
40 * here) and an optional #GObject it belongs to. Each of these messages is sent
41 * to all registered debugging handlers, which then handle the messages.
42 * GStreamer attaches a default handler on startup, which outputs requested
45 * Messages are output by using shortcut macros like #GST_DEBUG,
46 * #GST_CAT_ERROR_OBJECT or similar. These all expand to calling gst_debug_log()
47 * with the right parameters.
48 * The only thing a developer will probably want to do is define his own
49 * categories. This is easily done with 3 lines. At the top of your code,
51 * the variables and set the default category.
54 * GST_DEBUG_CATEGORY_STATIC (my_category); // define category (statically)
55 * &hash;define GST_CAT_DEFAULT my_category // set as default
58 * After that you only need to initialize the category.
61 * GST_DEBUG_CATEGORY_INIT (my_category, "my category",
62 * 0, "This is my very own");
65 * Initialization must be done before the category is used first.
67 * in their plugin_init function, libraries and applications should do that
68 * during their initialization.
70 * The whole debugging subsystem can be disabled at build time with passing the
71 * --disable-gst-debug switch to configure. If this is done, every function,
72 * macro and even structs described in this file evaluate to default values or
74 * So don't take addresses of these functions or use other tricks.
75 * If you must do that for some reason, there is still an option.
77 * subsystem was compiled out, #GST_DISABLE_GST_DEBUG is defined in
79 * so you can check that before doing your trick.
80 * Disabling the debugging subsystem will give you a slight (read: unnoticable)
81 * speed increase and will reduce the size of your compiled code. The GStreamer
82 * library itself becomes around 10% smaller.
84 * Please note that there are naming conventions for the names of debugging
85 * categories. These are explained at GST_DEBUG_CATEGORY_INIT().
88 #include "gst_private.h"
91 #ifndef GST_DISABLE_GST_DEBUG
96 #ifdef HAVE_PRINTF_EXTENSION
99 #include <stdio.h> /* fprintf */
101 # include <unistd.h> /* getpid on UNIX */
103 #ifdef HAVE_PROCESS_H
104 # include <process.h> /* getpid on win32 */
106 #include <string.h> /* G_VA_COPY */
107 #include "gst_private.h"
108 #include "gstutils.h"
109 #include "gstsegment.h"
111 # include <valgrind/valgrind.h>
113 #include <glib/gprintf.h> /* g_sprintf */
115 /* underscore is to prevent conflict with GST_CAT_DEBUG define */
116 GST_DEBUG_CATEGORY_STATIC (_GST_CAT_DEBUG);
117 /* time of initialization, so we get useful debugging output times */
118 static GstClockTime start_time;
122 #include <rld_interface.h>
123 typedef struct DL_INFO
125 const char *dli_fname;
127 const char *dli_sname;
131 long dli_reserved[4];
135 #define _RLD_DLADDR 14
136 int dladdr (void *address, Dl_info * dl);
139 dladdr (void *address, Dl_info * dl)
143 v = _rld_new_interface (_RLD_DLADDR, address, dl);
149 static void gst_debug_reset_threshold (gpointer category, gpointer unused);
150 static void gst_debug_reset_all_thresholds (void);
152 #ifdef HAVE_PRINTF_EXTENSION
153 static int _gst_info_printf_extension_ptr (FILE * stream,
154 const struct printf_info *info, const void *const *args);
155 static int _gst_info_printf_extension_segment (FILE * stream,
156 const struct printf_info *info, const void *const *args);
157 static int _gst_info_printf_extension_arginfo (const struct printf_info *info,
158 size_t n, int *argtypes);
161 struct _GstDebugMessage
168 /* list of all name/level pairs from --gst-debug and GST_DEBUG */
169 static GStaticMutex __level_name_mutex = G_STATIC_MUTEX_INIT;
170 static GSList *__level_name = NULL;
178 /* list of all categories */
179 static GStaticMutex __cat_mutex = G_STATIC_MUTEX_INIT;
180 static GSList *__categories = NULL;
182 /* all registered debug handlers */
189 static GStaticMutex __log_func_mutex = G_STATIC_MUTEX_INIT;
190 static GSList *__log_functions = NULL;
192 static gint __default_level;
193 static gint __use_color;
195 /* disabled by default, as soon as some threshold is set > NONE,
196 * it becomes enabled. */
197 gboolean __gst_debug_enabled = FALSE;
198 GstDebugLevel __gst_debug_min = GST_LEVEL_NONE;
200 GstDebugCategory *GST_CAT_DEFAULT = NULL;
202 GstDebugCategory *GST_CAT_GST_INIT = NULL;
203 GstDebugCategory *GST_CAT_AUTOPLUG = NULL;
204 GstDebugCategory *GST_CAT_AUTOPLUG_ATTEMPT = NULL;
205 GstDebugCategory *GST_CAT_PARENTAGE = NULL;
206 GstDebugCategory *GST_CAT_STATES = NULL;
207 GstDebugCategory *GST_CAT_SCHEDULING = NULL;
209 GstDebugCategory *GST_CAT_BUFFER = NULL;
210 GstDebugCategory *GST_CAT_BUS = NULL;
211 GstDebugCategory *GST_CAT_CAPS = NULL;
212 GstDebugCategory *GST_CAT_CLOCK = NULL;
213 GstDebugCategory *GST_CAT_ELEMENT_PADS = NULL;
214 GstDebugCategory *GST_CAT_PADS = NULL;
215 GstDebugCategory *GST_CAT_PIPELINE = NULL;
216 GstDebugCategory *GST_CAT_PLUGIN_LOADING = NULL;
217 GstDebugCategory *GST_CAT_PLUGIN_INFO = NULL;
218 GstDebugCategory *GST_CAT_PROPERTIES = NULL;
219 GstDebugCategory *GST_CAT_TYPES = NULL;
220 GstDebugCategory *GST_CAT_XML = NULL;
221 GstDebugCategory *GST_CAT_NEGOTIATION = NULL;
222 GstDebugCategory *GST_CAT_REFCOUNTING = NULL;
223 GstDebugCategory *GST_CAT_ERROR_SYSTEM = NULL;
224 GstDebugCategory *GST_CAT_EVENT = NULL;
225 GstDebugCategory *GST_CAT_MESSAGE = NULL;
226 GstDebugCategory *GST_CAT_PARAMS = NULL;
227 GstDebugCategory *GST_CAT_CALL_TRACE = NULL;
228 GstDebugCategory *GST_CAT_SIGNAL = NULL;
229 GstDebugCategory *GST_CAT_PROBE = NULL;
230 GstDebugCategory *GST_CAT_REGISTRY = NULL;
231 GstDebugCategory *GST_CAT_QOS = NULL;
233 /* FIXME: export this? */
235 __gst_in_valgrind (void)
243 in_valgrind = GST_VG_UNCHECKED;
245 if (in_valgrind == GST_VG_UNCHECKED) {
247 if (RUNNING_ON_VALGRIND) {
248 GST_CAT_INFO (GST_CAT_GST_INIT, "we're running inside valgrind");
249 printf ("GStreamer has detected that it is running inside valgrind.\n");
250 printf ("It might now take different code paths to ease debugging.\n");
251 printf ("Of course, this may also lead to different bugs.\n");
252 in_valgrind = GST_VG_INSIDE;
254 GST_CAT_LOG (GST_CAT_GST_INIT, "not doing extra valgrind stuff");
255 in_valgrind = GST_VG_NO_VALGRIND;
258 in_valgrind = GST_VG_NO_VALGRIND;
260 g_assert (in_valgrind == GST_VG_NO_VALGRIND ||
261 in_valgrind == GST_VG_INSIDE);
263 return (in_valgrind == GST_VG_INSIDE) ? TRUE : FALSE;
269 * Initializes the debugging system.
270 * Normally you don't want to call this, because gst_init() does it for you.
273 _gst_debug_init (void)
277 gst_atomic_int_set (&__default_level, GST_LEVEL_DEFAULT);
278 gst_atomic_int_set (&__use_color, 1);
280 /* get time we started for debugging messages */
281 g_get_current_time (¤t);
282 start_time = GST_TIMEVAL_TO_TIME (current);
284 #ifdef HAVE_PRINTF_EXTENSION
285 register_printf_function (GST_PTR_FORMAT[0], _gst_info_printf_extension_ptr,
286 _gst_info_printf_extension_arginfo);
287 register_printf_function (GST_SEGMENT_FORMAT[0],
288 _gst_info_printf_extension_segment, _gst_info_printf_extension_arginfo);
291 /* do NOT use a single debug function before this line has been run */
292 GST_CAT_DEFAULT = _gst_debug_category_new ("default",
293 GST_DEBUG_UNDERLINE, NULL);
294 _GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG",
295 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, "debugging subsystem");
297 gst_debug_add_log_function (gst_debug_log_default, NULL);
299 /* FIXME: add descriptions here */
300 GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT",
301 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
302 GST_CAT_AUTOPLUG = _gst_debug_category_new ("GST_AUTOPLUG",
303 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
304 GST_CAT_AUTOPLUG_ATTEMPT = _gst_debug_category_new ("GST_AUTOPLUG_ATTEMPT",
305 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN | GST_DEBUG_BG_BLUE, NULL);
306 GST_CAT_PARENTAGE = _gst_debug_category_new ("GST_PARENTAGE",
307 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
308 GST_CAT_STATES = _gst_debug_category_new ("GST_STATES",
309 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
310 GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING",
311 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL);
312 GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER",
313 GST_DEBUG_BOLD | GST_DEBUG_BG_GREEN, NULL);
314 GST_CAT_BUS = _gst_debug_category_new ("GST_BUS", GST_DEBUG_BG_YELLOW, NULL);
315 GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS",
316 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
317 GST_CAT_CLOCK = _gst_debug_category_new ("GST_CLOCK",
318 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, NULL);
319 GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS",
320 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
321 GST_CAT_PADS = _gst_debug_category_new ("GST_PADS",
322 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
323 GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE",
324 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
325 GST_CAT_PLUGIN_LOADING = _gst_debug_category_new ("GST_PLUGIN_LOADING",
326 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
327 GST_CAT_PLUGIN_INFO = _gst_debug_category_new ("GST_PLUGIN_INFO",
328 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
329 GST_CAT_PROPERTIES = _gst_debug_category_new ("GST_PROPERTIES",
330 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLUE, NULL);
331 GST_CAT_TYPES = _gst_debug_category_new ("GST_TYPES",
332 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
333 GST_CAT_XML = _gst_debug_category_new ("GST_XML",
334 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
335 GST_CAT_NEGOTIATION = _gst_debug_category_new ("GST_NEGOTIATION",
336 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
337 GST_CAT_REFCOUNTING = _gst_debug_category_new ("GST_REFCOUNTING",
338 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_BLUE, NULL);
339 GST_CAT_ERROR_SYSTEM = _gst_debug_category_new ("GST_ERROR_SYSTEM",
340 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_WHITE, NULL);
342 GST_CAT_EVENT = _gst_debug_category_new ("GST_EVENT",
343 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
344 GST_CAT_MESSAGE = _gst_debug_category_new ("GST_MESSAGE",
345 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
346 GST_CAT_PARAMS = _gst_debug_category_new ("GST_PARAMS",
347 GST_DEBUG_BOLD | GST_DEBUG_FG_BLACK | GST_DEBUG_BG_YELLOW, NULL);
348 GST_CAT_CALL_TRACE = _gst_debug_category_new ("GST_CALL_TRACE",
349 GST_DEBUG_BOLD, NULL);
350 GST_CAT_SIGNAL = _gst_debug_category_new ("GST_SIGNAL",
351 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
352 GST_CAT_PROBE = _gst_debug_category_new ("GST_PROBE",
353 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, "pad probes");
354 GST_CAT_REGISTRY = _gst_debug_category_new ("GST_REGISTRY", 0, "registry");
355 GST_CAT_QOS = _gst_debug_category_new ("GST_QOS", 0, "QoS");
358 /* print out the valgrind message if we're in valgrind */
359 __gst_in_valgrind ();
362 /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */
363 #define GST_CAT_DEFAULT _GST_CAT_DEBUG
367 * @category: category to log
368 * @level: level of the message is in
369 * @file: the file that emitted the message, usually the __FILE__ identifier
370 * @function: the function that emitted the message
371 * @line: the line from that the message was emitted, usually __LINE__
372 * @object: the object this message relates to or NULL if none
373 * @format: a printf style format string
374 * @...: optional arguments for the format
376 * Logs the given message using the currently registered debugging handlers.
379 gst_debug_log (GstDebugCategory * category, GstDebugLevel level,
380 const gchar * file, const gchar * function, gint line,
381 GObject * object, const gchar * format, ...)
385 va_start (var_args, format);
386 gst_debug_log_valist (category, level, file, function, line, object, format,
392 * gst_debug_log_valist:
393 * @category: category to log
394 * @level: level of the message is in
395 * @file: the file that emitted the message, usually the __FILE__ identifier
396 * @function: the function that emitted the message
397 * @line: the line from that the message was emitted, usually __LINE__
398 * @object: the object this message relates to or NULL if none
399 * @format: a printf style format string
400 * @args: optional arguments for the format
402 * Logs the given message using the currently registered debugging handlers.
405 gst_debug_log_valist (GstDebugCategory * category, GstDebugLevel level,
406 const gchar * file, const gchar * function, gint line,
407 GObject * object, const gchar * format, va_list args)
409 GstDebugMessage message;
413 g_return_if_fail (category != NULL);
414 g_return_if_fail (file != NULL);
415 g_return_if_fail (function != NULL);
416 g_return_if_fail (format != NULL);
418 message.message = NULL;
419 message.format = format;
420 G_VA_COPY (message.arguments, args);
422 handler = __log_functions;
424 entry = handler->data;
425 handler = g_slist_next (handler);
426 entry->func (category, level, file, function, line, object, &message,
429 g_free (message.message);
430 va_end (message.arguments);
434 * gst_debug_message_get:
435 * @message: a debug message
437 * Gets the string representation of a #GstDebugMessage. This function is used
438 * in debug handlers to extract the message.
440 * Returns: the string representation of a #GstDebugMessage.
443 gst_debug_message_get (GstDebugMessage * message)
445 if (message->message == NULL) {
446 message->message = g_strdup_vprintf (message->format, message->arguments);
448 return message->message;
453 gst_debug_print_object (gpointer ptr)
455 GObject *object = (GObject *) ptr;
458 /* This is a cute trick to detect unmapped memory, but is unportable,
459 * slow, screws around with madvise, and not actually that useful. */
463 ret = madvise ((void *) ((unsigned long) ptr & (~0xfff)), 4096, 0);
464 if (ret == -1 && errno == ENOMEM) {
465 buffer = g_strdup_printf ("%p (unmapped memory)", ptr);
470 /* nicely printed object */
471 if (object == NULL) {
472 return g_strdup ("(NULL)");
474 if (*(GType *) ptr == GST_TYPE_CAPS) {
475 return gst_caps_to_string ((GstCaps *) ptr);
477 if (*(GType *) ptr == GST_TYPE_STRUCTURE) {
478 return gst_structure_to_string ((GstStructure *) ptr);
481 if (*(guint32 *) ptr == 0xffffffff) {
482 return g_strdup_printf ("<poisoned@%p>", ptr);
485 if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
486 return g_strdup_printf ("<%s:%s>", GST_DEBUG_PAD_NAME (object));
488 if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
489 return g_strdup_printf ("<%s>", GST_OBJECT_NAME (object));
491 if (G_IS_OBJECT (object)) {
492 return g_strdup_printf ("<%s@%p>", G_OBJECT_TYPE_NAME (object), object);
494 if (GST_IS_MESSAGE (object)) {
495 GstMessage *msg = GST_MESSAGE_CAST (object);
498 if (msg->structure) {
499 s = gst_structure_to_string (msg->structure);
501 s = g_strdup ("(NULL)");
504 ret = g_strdup_printf ("%s message from element '%s': %s",
505 GST_MESSAGE_TYPE_NAME (msg), (msg->src != NULL) ?
506 GST_ELEMENT_NAME (msg->src) : "(NULL)", s);
511 return g_strdup_printf ("%p", ptr);
514 #ifdef HAVE_PRINTF_EXTENSION
517 gst_debug_print_segment (gpointer ptr)
519 GstSegment *segment = (GstSegment *) ptr;
521 /* nicely printed segment */
522 if (segment == NULL) {
523 return g_strdup ("(NULL)");
526 switch (segment->format) {
527 case GST_FORMAT_UNDEFINED:{
528 return g_strdup_printf ("UNDEFINED segment");
530 case GST_FORMAT_TIME:{
531 return g_strdup_printf ("time segment start=%" GST_TIME_FORMAT
532 ", stop=%" GST_TIME_FORMAT ", last_stop=%" GST_TIME_FORMAT
533 ", duration=%" GST_TIME_FORMAT ", rate=%f, applied_rate=%f"
534 ", flags=0x%02x, time=%" GST_TIME_FORMAT ", accum=%" GST_TIME_FORMAT,
535 GST_TIME_ARGS (segment->start), GST_TIME_ARGS (segment->stop),
536 GST_TIME_ARGS (segment->last_stop), GST_TIME_ARGS (segment->duration),
537 segment->rate, segment->applied_rate, (guint) segment->flags,
538 GST_TIME_ARGS (segment->time), GST_TIME_ARGS (segment->accum));
541 const gchar *format_name;
543 format_name = gst_format_get_name (segment->format);
544 if (G_UNLIKELY (format_name == NULL))
545 format_name = "(UNKNOWN FORMAT)";
546 return g_strdup_printf ("%s segment start=%" G_GINT64_FORMAT
547 ", stop=%" G_GINT64_FORMAT ", last_stop=%" G_GINT64_FORMAT
548 ", duration=%" G_GINT64_FORMAT ", rate=%f, applied_rate=%f"
549 ", flags=0x%02x, time=%" GST_TIME_FORMAT ", accum=%" GST_TIME_FORMAT,
550 format_name, segment->start, segment->stop, segment->last_stop,
551 segment->duration, segment->rate, segment->applied_rate,
552 (guint) segment->flags, GST_TIME_ARGS (segment->time),
553 GST_TIME_ARGS (segment->accum));
558 #endif /* HAVE_PRINTF_EXTENSION */
561 * gst_debug_construct_term_color:
562 * @colorinfo: the color info
564 * Constructs a string that can be used for getting the desired color in color
566 * You need to free the string after use.
568 * Returns: a string containing the color definition
571 gst_debug_construct_term_color (guint colorinfo)
576 color = g_string_new ("\033[00");
578 if (colorinfo & GST_DEBUG_BOLD) {
579 g_string_append (color, ";01");
581 if (colorinfo & GST_DEBUG_UNDERLINE) {
582 g_string_append (color, ";04");
584 if (colorinfo & GST_DEBUG_FG_MASK) {
585 g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK);
587 if (colorinfo & GST_DEBUG_BG_MASK) {
588 g_string_append_printf (color, ";4%1d",
589 (colorinfo & GST_DEBUG_BG_MASK) >> 4);
591 g_string_append (color, "m");
594 g_string_free (color, FALSE);
599 * gst_debug_log_default:
600 * @category: category to log
601 * @level: level of the message
602 * @file: the file that emitted the message, usually the __FILE__ identifier
603 * @function: the function that emitted the message
604 * @line: the line from that the message was emitted, usually __LINE__
605 * @message: the actual message
606 * @object: the object this message relates to or NULL if none
607 * @unused: an unused variable, reserved for some user_data.
609 * The default logging handler used by GStreamer. Logging functions get called
610 * whenever a macro like GST_DEBUG or similar is used. This function outputs the
611 * message and additional info using the glib error handler.
612 * You can add other handlers by using gst_debug_add_log_function().
613 * And you can remove this handler by calling
614 * gst_debug_remove_log_function(gst_debug_log_default);
617 gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level,
618 const gchar * file, const gchar * function, gint line,
619 GObject * object, GstDebugMessage * message, gpointer unused)
625 const gchar *levelcolor;
628 GstClockTime elapsed;
629 gboolean free_color = TRUE;
630 gboolean free_obj = TRUE;
631 static const gchar *levelcolormap[] = {
632 "\033[37m", /* GST_LEVEL_NONE */
633 "\033[31;01m", /* GST_LEVEL_ERROR */
634 "\033[33;01m", /* GST_LEVEL_WARNING */
635 "\033[32;01m", /* GST_LEVEL_INFO */
636 "\033[36m", /* GST_LEVEL_DEBUG */
637 "\033[37m" /* GST_LEVEL_LOG */
640 if (level > gst_debug_category_get_threshold (category))
646 if (gst_debug_is_colored ()) {
647 color = gst_debug_construct_term_color (gst_debug_category_get_color
650 g_sprintf (pidcolor, "\033[3%1dm", pid % 6 + 31);
651 levelcolor = levelcolormap[level];
661 obj = gst_debug_print_object (object);
667 g_get_current_time (&now);
668 elapsed = GST_TIMEVAL_TO_TIME (now) - start_time;
671 g_printerr ("%s (%p - %" GST_TIME_FORMAT ") %s%20s%s(%s%5d%s) %s%s(%d):%s:%s%s %s\n",
672 gst_debug_level_get_name (level), g_thread_self (),
673 GST_TIME_ARGS (elapsed), color,
674 gst_debug_category_get_name (category), clear, pidcolor, pid, clear,
675 color, file, line, function, obj, clear, gst_debug_message_get (message));
678 g_printerr ("%" GST_TIME_FORMAT
679 " %s%5d%s %p %s%s%s %s%20s %s:%d:%s:%s%s %s\n", GST_TIME_ARGS (elapsed),
680 pidcolor, pid, clear, g_thread_self (), levelcolor,
681 gst_debug_level_get_name (level), clear, color,
682 gst_debug_category_get_name (category), file, line, function, obj, clear,
683 gst_debug_message_get (message));
692 * gst_debug_level_get_name:
693 * @level: the level to get the name for
695 * Get the string trepresentation of a debugging level
700 gst_debug_level_get_name (GstDebugLevel level)
705 case GST_LEVEL_ERROR:
707 case GST_LEVEL_WARNING:
711 case GST_LEVEL_DEBUG:
716 g_warning ("invalid level specified for gst_debug_level_get_name");
722 * gst_debug_add_log_function:
723 * @func: the function to use
726 * Adds the logging function to the list of logging functions.
727 * Be sure to use G_GNUC_NO_INSTRUMENT on that function, it is needed.
730 gst_debug_add_log_function (GstLogFunction func, gpointer data)
735 g_return_if_fail (func != NULL);
737 entry = g_new (LogFuncEntry, 1);
739 entry->user_data = data;
740 /* FIXME: we leak the old list here - other threads might access it right now
741 * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv,
742 * but that is waaay costly.
743 * It'd probably be clever to use some kind of RCU here, but I don't know
744 * anything about that.
746 g_static_mutex_lock (&__log_func_mutex);
747 list = g_slist_copy (__log_functions);
748 __log_functions = g_slist_prepend (list, entry);
749 g_static_mutex_unlock (&__log_func_mutex);
751 GST_DEBUG ("prepended log function %p (user data %p) to log functions",
756 gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func)
758 gpointer entryfunc = (gpointer) (((LogFuncEntry *) entry)->func);
760 return (entryfunc < func) ? -1 : (entryfunc > func) ? 1 : 0;
764 gst_debug_compare_log_function_by_data (gconstpointer entry, gconstpointer data)
766 gpointer entrydata = ((LogFuncEntry *) entry)->user_data;
768 return (entrydata < data) ? -1 : (entrydata > data) ? 1 : 0;
772 gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data)
778 g_static_mutex_lock (&__log_func_mutex);
779 new = __log_functions;
780 while ((found = g_slist_find_custom (new, data, func))) {
781 if (new == __log_functions) {
782 new = g_slist_copy (new);
785 g_free (found->data);
786 new = g_slist_delete_link (new, found);
789 /* FIXME: We leak the old list here. See _add_log_function for why. */
790 __log_functions = new;
791 g_static_mutex_unlock (&__log_func_mutex);
797 * gst_debug_remove_log_function:
798 * @func: the log function to remove
800 * Removes all registrered instances of the given logging functions.
802 * Returns: How many instances of the function were removed
805 gst_debug_remove_log_function (GstLogFunction func)
809 g_return_val_if_fail (func != NULL, 0);
812 gst_debug_remove_with_compare_func
813 (gst_debug_compare_log_function_by_func, (gpointer) func);
814 GST_DEBUG ("removed log function %p %d times from log function list", func,
821 * gst_debug_remove_log_function_by_data:
822 * @data: user data of the log function to remove
824 * Removes all registrered instances of log functions with the given user data.
826 * Returns: How many instances of the function were removed
829 gst_debug_remove_log_function_by_data (gpointer data)
834 gst_debug_remove_with_compare_func
835 (gst_debug_compare_log_function_by_data, data);
837 ("removed %d log functions with user data %p from log function list",
844 * gst_debug_set_colored:
845 * @colored: Whether to use colored output or not
847 * Sets or unsets the use of coloured debugging output.
850 gst_debug_set_colored (gboolean colored)
852 gst_atomic_int_set (&__use_color, colored ? 1 : 0);
856 * gst_debug_is_colored:
858 * Checks if the debugging output should be colored.
860 * Returns: TRUE, if the debug output should be colored.
863 gst_debug_is_colored (void)
865 return g_atomic_int_get (&__use_color) == 0 ? FALSE : TRUE;
869 * gst_debug_set_active:
870 * @active: Whether to use debugging output or not
872 * If activated, debugging messages are sent to the debugging
874 * It makes sense to deactivate it for speed issues.
875 * <note><para>This function is not threadsafe. It makes sense to only call it
876 * during initialization.</para></note>
879 gst_debug_set_active (gboolean active)
881 __gst_debug_enabled = active;
883 __gst_debug_min = GST_LEVEL_COUNT;
885 __gst_debug_min = GST_LEVEL_NONE;
889 * gst_debug_is_active:
891 * Checks if debugging output is activated.
893 * Returns: TRUE, if debugging is activated
896 gst_debug_is_active (void)
898 return __gst_debug_enabled;
902 * gst_debug_set_default_threshold:
903 * @level: level to set
905 * Sets the default threshold to the given level and updates all categories to
906 * use this threshold.
909 gst_debug_set_default_threshold (GstDebugLevel level)
911 gst_atomic_int_set (&__default_level, level);
912 gst_debug_reset_all_thresholds ();
916 * gst_debug_get_default_threshold:
918 * Returns the default threshold that is used for new categories.
920 * Returns: the default threshold level
923 gst_debug_get_default_threshold (void)
925 return (GstDebugLevel) g_atomic_int_get (&__default_level);
928 gst_debug_reset_threshold (gpointer category, gpointer unused)
930 GstDebugCategory *cat = (GstDebugCategory *) category;
933 g_static_mutex_lock (&__level_name_mutex);
936 LevelNameEntry *entry = walk->data;
938 walk = g_slist_next (walk);
939 if (g_pattern_match_string (entry->pat, cat->name)) {
940 GST_LOG ("category %s matches pattern %p - gets set to level %d",
941 cat->name, entry->pat, entry->level);
942 gst_debug_category_set_threshold (cat, entry->level);
946 gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
949 g_static_mutex_unlock (&__level_name_mutex);
952 gst_debug_reset_all_thresholds (void)
954 g_static_mutex_lock (&__cat_mutex);
955 g_slist_foreach (__categories, gst_debug_reset_threshold, NULL);
956 g_static_mutex_unlock (&__cat_mutex);
959 for_each_threshold_by_entry (gpointer data, gpointer user_data)
961 GstDebugCategory *cat = (GstDebugCategory *) data;
962 LevelNameEntry *entry = (LevelNameEntry *) user_data;
964 if (g_pattern_match_string (entry->pat, cat->name)) {
965 GST_LOG ("category %s matches pattern %p - gets set to level %d",
966 cat->name, entry->pat, entry->level);
967 gst_debug_category_set_threshold (cat, entry->level);
972 * gst_debug_set_threshold_for_name:
973 * @name: name of the categories to set
974 * @level: level to set them to
976 * Sets all categories which match the given glob style pattern to the given
980 gst_debug_set_threshold_for_name (const gchar * name, GstDebugLevel level)
983 LevelNameEntry *entry;
985 g_return_if_fail (name != NULL);
987 pat = g_pattern_spec_new (name);
988 entry = g_new (LevelNameEntry, 1);
990 entry->level = level;
991 g_static_mutex_lock (&__level_name_mutex);
992 __level_name = g_slist_prepend (__level_name, entry);
993 g_static_mutex_unlock (&__level_name_mutex);
994 g_static_mutex_lock (&__cat_mutex);
995 g_slist_foreach (__categories, for_each_threshold_by_entry, entry);
996 g_static_mutex_unlock (&__cat_mutex);
1000 * gst_debug_unset_threshold_for_name:
1001 * @name: name of the categories to set
1003 * Resets all categories with the given name back to the default level.
1006 gst_debug_unset_threshold_for_name (const gchar * name)
1011 g_return_if_fail (name != NULL);
1013 pat = g_pattern_spec_new (name);
1014 g_static_mutex_lock (&__level_name_mutex);
1015 walk = __level_name;
1016 /* improve this if you want, it's mighty slow */
1018 LevelNameEntry *entry = walk->data;
1020 if (g_pattern_spec_equal (entry->pat, pat)) {
1021 __level_name = g_slist_remove_link (__level_name, walk);
1022 g_pattern_spec_free (entry->pat);
1024 g_slist_free_1 (walk);
1025 walk = __level_name;
1028 g_static_mutex_unlock (&__level_name_mutex);
1029 g_pattern_spec_free (pat);
1030 gst_debug_reset_all_thresholds ();
1034 _gst_debug_category_new (const gchar * name, guint color,
1035 const gchar * description)
1037 GstDebugCategory *cat;
1039 g_return_val_if_fail (name != NULL, NULL);
1041 cat = g_new (GstDebugCategory, 1);
1042 cat->name = g_strdup (name);
1044 if (description != NULL) {
1045 cat->description = g_strdup (description);
1047 cat->description = g_strdup ("no description");
1049 gst_atomic_int_set (&cat->threshold, 0);
1050 gst_debug_reset_threshold (cat, NULL);
1052 /* add to category list */
1053 g_static_mutex_lock (&__cat_mutex);
1054 __categories = g_slist_prepend (__categories, cat);
1055 g_static_mutex_unlock (&__cat_mutex);
1061 * gst_debug_category_free:
1062 * @category: #GstDebugCategory to free.
1064 * Removes and frees the category and all associated resources.
1067 gst_debug_category_free (GstDebugCategory * category)
1069 if (category == NULL)
1072 /* remove from category list */
1073 g_static_mutex_lock (&__cat_mutex);
1074 __categories = g_slist_remove (__categories, category);
1075 g_static_mutex_unlock (&__cat_mutex);
1077 g_free ((gpointer) category->name);
1078 g_free ((gpointer) category->description);
1083 * gst_debug_category_set_threshold:
1084 * @category: a #GstDebugCategory to set threshold of.
1085 * @level: the #GstDebugLevel threshold to set.
1087 * Sets the threshold of the category to the given level. Debug information will
1088 * only be output if the threshold is lower or equal to the level of the
1089 * debugging message.
1091 * Do not use this function in production code, because other functions may
1092 * change the threshold of categories as side effect. It is however a nice
1093 * function to use when debugging (even from gdb).
1097 gst_debug_category_set_threshold (GstDebugCategory * category,
1098 GstDebugLevel level)
1100 g_return_if_fail (category != NULL);
1102 if (level > __gst_debug_min) {
1103 __gst_debug_enabled = TRUE;
1104 __gst_debug_min = level;
1107 gst_atomic_int_set (&category->threshold, level);
1111 * gst_debug_category_reset_threshold:
1112 * @category: a #GstDebugCategory to reset threshold of.
1114 * Resets the threshold of the category to the default level. Debug information
1115 * will only be output if the threshold is lower or equal to the level of the
1116 * debugging message.
1117 * Use this function to set the threshold back to where it was after using
1118 * gst_debug_category_set_threshold().
1121 gst_debug_category_reset_threshold (GstDebugCategory * category)
1123 gst_debug_reset_threshold (category, NULL);
1127 * gst_debug_category_get_threshold:
1128 * @category: a #GstDebugCategory to get threshold of.
1130 * Returns the threshold of a #GstCategory.
1132 * Returns: the #GstDebugLevel that is used as threshold.
1135 gst_debug_category_get_threshold (GstDebugCategory * category)
1137 return g_atomic_int_get (&category->threshold);
1141 * gst_debug_category_get_name:
1142 * @category: a #GstDebugCategory to get name of.
1144 * Returns the name of a debug category.
1146 * Returns: the name of the category.
1149 gst_debug_category_get_name (GstDebugCategory * category)
1151 return category->name;
1155 * gst_debug_category_get_color:
1156 * @category: a #GstDebugCategory to get the color of.
1158 * Returns the color of a debug category used when printing output in this
1161 * Returns: the color of the category.
1164 gst_debug_category_get_color (GstDebugCategory * category)
1166 return category->color;
1170 * gst_debug_category_get_description:
1171 * @category: a #GstDebugCategory to get the description of.
1173 * Returns the description of a debug category.
1175 * Returns: the description of the category.
1178 gst_debug_category_get_description (GstDebugCategory * category)
1180 return category->description;
1184 * gst_debug_get_all_categories:
1186 * Returns a snapshot of a all categories that are currently in use . This list
1187 * may change anytime.
1188 * The caller has to free the list after use.
1190 * Returns: the list of categories
1193 gst_debug_get_all_categories (void)
1197 g_static_mutex_lock (&__cat_mutex);
1198 ret = g_slist_copy (__categories);
1199 g_static_mutex_unlock (&__cat_mutex);
1204 /*** FUNCTION POINTERS ********************************************************/
1206 static GHashTable *__gst_function_pointers; /* NULL */
1207 static GStaticMutex __dbg_functions_mutex = G_STATIC_MUTEX_INIT;
1210 _gst_debug_nameof_funcptr (GstDebugFuncPtr ptr)
1211 G_GNUC_NO_INSTRUMENT;
1213 /* This function MUST NOT return NULL */
1214 const gchar *_gst_debug_nameof_funcptr (GstDebugFuncPtr func)
1222 if (G_UNLIKELY (func == NULL))
1225 g_static_mutex_lock (&__dbg_functions_mutex);
1226 if (G_LIKELY (__gst_function_pointers)) {
1227 ptrname = g_hash_table_lookup (__gst_function_pointers, (gpointer) func);
1228 g_static_mutex_unlock (&__dbg_functions_mutex);
1229 if (G_LIKELY (ptrname))
1232 g_static_mutex_unlock (&__dbg_functions_mutex);
1234 /* we need to create an entry in the hash table for this one so we don't leak
1237 if (dladdr ((gpointer) func, &dlinfo) && dlinfo.dli_sname) {
1238 gchar *name = g_strdup (dlinfo.dli_sname);
1240 _gst_debug_register_funcptr (func, name);
1245 gchar *name = g_strdup_printf ("%p", (gpointer) func);
1247 _gst_debug_register_funcptr (func, name);
1253 _gst_debug_register_funcptr (GstDebugFuncPtr func, const gchar * ptrname)
1255 gpointer ptr = (gpointer) func;
1257 g_static_mutex_lock (&__dbg_functions_mutex);
1259 if (!__gst_function_pointers)
1260 __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal);
1261 if (!g_hash_table_lookup (__gst_function_pointers, ptr))
1262 g_hash_table_insert (__gst_function_pointers, ptr, (gpointer) ptrname);
1264 g_static_mutex_unlock (&__dbg_functions_mutex);
1267 #ifdef HAVE_PRINTF_EXTENSION
1269 _gst_info_printf_extension_ptr (FILE * stream, const struct printf_info *info,
1270 const void *const *args)
1277 ptr = *(void **) args[0];
1279 buffer = gst_debug_print_object (ptr);
1280 len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
1288 _gst_info_printf_extension_segment (FILE * stream,
1289 const struct printf_info *info, const void *const *args)
1296 ptr = *(void **) args[0];
1298 buffer = gst_debug_print_segment (ptr);
1299 len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
1307 _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n,
1311 argtypes[0] = PA_POINTER;
1314 #endif /* HAVE_PRINTF_EXTENSION */
1316 #else /* !GST_DISABLE_GST_DEBUG */
1318 gst_debug_remove_log_function (GstLogFunction func)
1324 gst_debug_remove_log_function_by_data (gpointer data)
1330 __gst_in_valgrind (void)
1335 #endif /* GST_DISABLE_GST_DEBUG */
1338 #ifdef GST_ENABLE_FUNC_INSTRUMENTATION
1339 /* FIXME make this thread specific */
1340 static GSList *stack_trace = NULL;
1343 __cyg_profile_func_enter (void *this_fn, void *call_site)
1344 G_GNUC_NO_INSTRUMENT;
1345 void __cyg_profile_func_enter (void *this_fn, void *call_site)
1347 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1348 gchar *site = _gst_debug_nameof_funcptr (call_site);
1350 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "entering function %s from %s", name,
1353 g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)",
1354 this_fn, name, call_site, site));
1361 __cyg_profile_func_exit (void *this_fn, void *call_site)
1362 G_GNUC_NO_INSTRUMENT;
1363 void __cyg_profile_func_exit (void *this_fn, void *call_site)
1365 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1367 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "leaving function %s", name);
1368 g_free (stack_trace->data);
1369 stack_trace = g_slist_delete_link (stack_trace, stack_trace);
1375 * gst_debug_print_stack_trace:
1377 * If GST_ENABLE_FUNC_INSTRUMENTATION is defined a stacktracke is available for
1378 * gstreamer code, which can be printed with this function.
1381 gst_debug_print_stack_trace (void)
1383 GSList *walk = stack_trace;
1387 walk = g_slist_next (walk);
1390 gchar *name = (gchar *) walk->data;
1392 g_print ("#%-2d %s\n", count++, name);
1394 walk = g_slist_next (walk);
1399 gst_debug_print_stack_trace (void)
1401 /* nothing because it's compiled out */
1404 #endif /* GST_ENABLE_FUNC_INTSTRUMENTATION */