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 facilities
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: unnoticeable)
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 */
108 #include "gst_private.h"
109 #include "gstutils.h"
110 #include "gstsegment.h"
112 # include <valgrind/valgrind.h>
114 #include <glib/gprintf.h> /* g_sprintf */
116 /* underscore is to prevent conflict with GST_CAT_DEBUG define */
117 GST_DEBUG_CATEGORY_STATIC (_GST_CAT_DEBUG);
119 /* time of initialization, so we get useful debugging output times
120 * FIXME: we use this in gstdebugutils.c, what about a function + macro to
121 * get the running time: GST_DEBUG_RUNNING_TIME
123 GstClockTime _priv_gst_info_start_time;
127 #include <rld_interface.h>
128 typedef struct DL_INFO
130 const char *dli_fname;
132 const char *dli_sname;
136 long dli_reserved[4];
140 #define _RLD_DLADDR 14
141 int dladdr (void *address, Dl_info * dl);
144 dladdr (void *address, Dl_info * dl)
148 v = _rld_new_interface (_RLD_DLADDR, address, dl);
154 static void gst_debug_reset_threshold (gpointer category, gpointer unused);
155 static void gst_debug_reset_all_thresholds (void);
157 #ifdef HAVE_PRINTF_EXTENSION
158 static int _gst_info_printf_extension_ptr (FILE * stream,
159 const struct printf_info *info, const void *const *args);
160 static int _gst_info_printf_extension_segment (FILE * stream,
161 const struct printf_info *info, const void *const *args);
162 static int _gst_info_printf_extension_arginfo (const struct printf_info *info,
163 size_t n, int *argtypes);
166 struct _GstDebugMessage
173 /* list of all name/level pairs from --gst-debug and GST_DEBUG */
174 static GStaticMutex __level_name_mutex = G_STATIC_MUTEX_INIT;
175 static GSList *__level_name = NULL;
183 /* list of all categories */
184 static GStaticMutex __cat_mutex = G_STATIC_MUTEX_INIT;
185 static GSList *__categories = NULL;
187 /* all registered debug handlers */
194 static GStaticMutex __log_func_mutex = G_STATIC_MUTEX_INIT;
195 static GSList *__log_functions = NULL;
197 static gint __default_level;
198 static gint __use_color;
200 /* disabled by default, as soon as some threshold is set > NONE,
201 * it becomes enabled. */
202 gboolean __gst_debug_enabled = FALSE;
203 GstDebugLevel __gst_debug_min = GST_LEVEL_NONE;
205 GstDebugCategory *GST_CAT_DEFAULT = NULL;
207 GstDebugCategory *GST_CAT_GST_INIT = NULL;
208 GstDebugCategory *GST_CAT_AUTOPLUG = NULL;
209 GstDebugCategory *GST_CAT_AUTOPLUG_ATTEMPT = NULL;
210 GstDebugCategory *GST_CAT_PARENTAGE = NULL;
211 GstDebugCategory *GST_CAT_STATES = NULL;
212 GstDebugCategory *GST_CAT_SCHEDULING = NULL;
214 GstDebugCategory *GST_CAT_BUFFER = NULL;
215 GstDebugCategory *GST_CAT_BUS = NULL;
216 GstDebugCategory *GST_CAT_CAPS = NULL;
217 GstDebugCategory *GST_CAT_CLOCK = NULL;
218 GstDebugCategory *GST_CAT_ELEMENT_PADS = NULL;
219 GstDebugCategory *GST_CAT_PADS = NULL;
220 GstDebugCategory *GST_CAT_PIPELINE = NULL;
221 GstDebugCategory *GST_CAT_PLUGIN_LOADING = NULL;
222 GstDebugCategory *GST_CAT_PLUGIN_INFO = NULL;
223 GstDebugCategory *GST_CAT_PROPERTIES = NULL;
224 GstDebugCategory *GST_CAT_TYPES = NULL;
225 GstDebugCategory *GST_CAT_XML = NULL;
226 GstDebugCategory *GST_CAT_NEGOTIATION = NULL;
227 GstDebugCategory *GST_CAT_REFCOUNTING = NULL;
228 GstDebugCategory *GST_CAT_ERROR_SYSTEM = NULL;
229 GstDebugCategory *GST_CAT_EVENT = NULL;
230 GstDebugCategory *GST_CAT_MESSAGE = NULL;
231 GstDebugCategory *GST_CAT_PARAMS = NULL;
232 GstDebugCategory *GST_CAT_CALL_TRACE = NULL;
233 GstDebugCategory *GST_CAT_SIGNAL = NULL;
234 GstDebugCategory *GST_CAT_PROBE = NULL;
235 GstDebugCategory *GST_CAT_REGISTRY = NULL;
236 GstDebugCategory *GST_CAT_QOS = NULL;
238 /* FIXME: export this? */
240 __gst_in_valgrind (void)
248 in_valgrind = GST_VG_UNCHECKED;
250 if (in_valgrind == GST_VG_UNCHECKED) {
252 if (RUNNING_ON_VALGRIND) {
253 GST_CAT_INFO (GST_CAT_GST_INIT, "we're running inside valgrind");
254 printf ("GStreamer has detected that it is running inside valgrind.\n");
255 printf ("It might now take different code paths to ease debugging.\n");
256 printf ("Of course, this may also lead to different bugs.\n");
257 in_valgrind = GST_VG_INSIDE;
259 GST_CAT_LOG (GST_CAT_GST_INIT, "not doing extra valgrind stuff");
260 in_valgrind = GST_VG_NO_VALGRIND;
263 in_valgrind = GST_VG_NO_VALGRIND;
265 g_assert (in_valgrind == GST_VG_NO_VALGRIND ||
266 in_valgrind == GST_VG_INSIDE);
268 return (in_valgrind == GST_VG_INSIDE) ? TRUE : FALSE;
274 * Initializes the debugging system.
275 * Normally you don't want to call this, because gst_init() does it for you.
278 _gst_debug_init (void)
280 gst_atomic_int_set (&__default_level, GST_LEVEL_DEFAULT);
281 gst_atomic_int_set (&__use_color, 1);
283 /* get time we started for debugging messages */
284 #ifdef HAVE_POSIX_TIMERS
286 struct timespec current;
288 clock_gettime (CLOCK_MONOTONIC, ¤t);
289 _priv_gst_info_start_time = GST_TIMESPEC_TO_TIME (current);
295 g_get_current_time (¤t);
296 _priv_gst_info_start_time = GST_TIMEVAL_TO_TIME (current);
300 #ifdef HAVE_PRINTF_EXTENSION
301 register_printf_function (GST_PTR_FORMAT[0], _gst_info_printf_extension_ptr,
302 _gst_info_printf_extension_arginfo);
303 register_printf_function (GST_SEGMENT_FORMAT[0],
304 _gst_info_printf_extension_segment, _gst_info_printf_extension_arginfo);
307 /* do NOT use a single debug function before this line has been run */
308 GST_CAT_DEFAULT = _gst_debug_category_new ("default",
309 GST_DEBUG_UNDERLINE, NULL);
310 _GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG",
311 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, "debugging subsystem");
313 gst_debug_add_log_function (gst_debug_log_default, NULL);
315 /* FIXME: add descriptions here */
316 GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT",
317 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
318 GST_CAT_AUTOPLUG = _gst_debug_category_new ("GST_AUTOPLUG",
319 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
320 GST_CAT_AUTOPLUG_ATTEMPT = _gst_debug_category_new ("GST_AUTOPLUG_ATTEMPT",
321 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN | GST_DEBUG_BG_BLUE, NULL);
322 GST_CAT_PARENTAGE = _gst_debug_category_new ("GST_PARENTAGE",
323 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
324 GST_CAT_STATES = _gst_debug_category_new ("GST_STATES",
325 GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL);
326 GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING",
327 GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL);
328 GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER",
329 GST_DEBUG_BOLD | GST_DEBUG_BG_GREEN, NULL);
330 GST_CAT_BUS = _gst_debug_category_new ("GST_BUS", GST_DEBUG_BG_YELLOW, NULL);
331 GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS",
332 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
333 GST_CAT_CLOCK = _gst_debug_category_new ("GST_CLOCK",
334 GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, NULL);
335 GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS",
336 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
337 GST_CAT_PADS = _gst_debug_category_new ("GST_PADS",
338 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
339 GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE",
340 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
341 GST_CAT_PLUGIN_LOADING = _gst_debug_category_new ("GST_PLUGIN_LOADING",
342 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
343 GST_CAT_PLUGIN_INFO = _gst_debug_category_new ("GST_PLUGIN_INFO",
344 GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL);
345 GST_CAT_PROPERTIES = _gst_debug_category_new ("GST_PROPERTIES",
346 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLUE, NULL);
347 GST_CAT_TYPES = _gst_debug_category_new ("GST_TYPES",
348 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
349 GST_CAT_XML = _gst_debug_category_new ("GST_XML",
350 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
351 GST_CAT_NEGOTIATION = _gst_debug_category_new ("GST_NEGOTIATION",
352 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
353 GST_CAT_REFCOUNTING = _gst_debug_category_new ("GST_REFCOUNTING",
354 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_BLUE, NULL);
355 GST_CAT_ERROR_SYSTEM = _gst_debug_category_new ("GST_ERROR_SYSTEM",
356 GST_DEBUG_BOLD | GST_DEBUG_FG_RED | GST_DEBUG_BG_WHITE, NULL);
358 GST_CAT_EVENT = _gst_debug_category_new ("GST_EVENT",
359 GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL);
360 GST_CAT_MESSAGE = _gst_debug_category_new ("GST_MESSAGE",
361 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
362 GST_CAT_PARAMS = _gst_debug_category_new ("GST_PARAMS",
363 GST_DEBUG_BOLD | GST_DEBUG_FG_BLACK | GST_DEBUG_BG_YELLOW, NULL);
364 GST_CAT_CALL_TRACE = _gst_debug_category_new ("GST_CALL_TRACE",
365 GST_DEBUG_BOLD, NULL);
366 GST_CAT_SIGNAL = _gst_debug_category_new ("GST_SIGNAL",
367 GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL);
368 GST_CAT_PROBE = _gst_debug_category_new ("GST_PROBE",
369 GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, "pad probes");
370 GST_CAT_REGISTRY = _gst_debug_category_new ("GST_REGISTRY", 0, "registry");
371 GST_CAT_QOS = _gst_debug_category_new ("GST_QOS", 0, "QoS");
374 /* print out the valgrind message if we're in valgrind */
375 __gst_in_valgrind ();
378 /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */
379 #define GST_CAT_DEFAULT _GST_CAT_DEBUG
383 * @category: category to log
384 * @level: level of the message is in
385 * @file: the file that emitted the message, usually the __FILE__ identifier
386 * @function: the function that emitted the message
387 * @line: the line from that the message was emitted, usually __LINE__
388 * @object: the object this message relates to or NULL if none
389 * @format: a printf style format string
390 * @...: optional arguments for the format
392 * Logs the given message using the currently registered debugging handlers.
395 gst_debug_log (GstDebugCategory * category, GstDebugLevel level,
396 const gchar * file, const gchar * function, gint line,
397 GObject * object, const gchar * format, ...)
401 va_start (var_args, format);
402 gst_debug_log_valist (category, level, file, function, line, object, format,
408 * gst_debug_log_valist:
409 * @category: category to log
410 * @level: level of the message is in
411 * @file: the file that emitted the message, usually the __FILE__ identifier
412 * @function: the function that emitted the message
413 * @line: the line from that the message was emitted, usually __LINE__
414 * @object: the object this message relates to or NULL if none
415 * @format: a printf style format string
416 * @args: optional arguments for the format
418 * Logs the given message using the currently registered debugging handlers.
421 gst_debug_log_valist (GstDebugCategory * category, GstDebugLevel level,
422 const gchar * file, const gchar * function, gint line,
423 GObject * object, const gchar * format, va_list args)
425 GstDebugMessage message;
429 g_return_if_fail (category != NULL);
430 g_return_if_fail (file != NULL);
431 g_return_if_fail (function != NULL);
432 g_return_if_fail (format != NULL);
434 message.message = NULL;
435 message.format = format;
436 G_VA_COPY (message.arguments, args);
438 handler = __log_functions;
440 entry = handler->data;
441 handler = g_slist_next (handler);
442 entry->func (category, level, file, function, line, object, &message,
445 g_free (message.message);
446 va_end (message.arguments);
450 * gst_debug_message_get:
451 * @message: a debug message
453 * Gets the string representation of a #GstDebugMessage. This function is used
454 * in debug handlers to extract the message.
456 * Returns: the string representation of a #GstDebugMessage.
459 gst_debug_message_get (GstDebugMessage * message)
461 if (message->message == NULL) {
462 message->message = g_strdup_vprintf (message->format, message->arguments);
464 return message->message;
469 gst_debug_print_object (gpointer ptr)
471 GObject *object = (GObject *) ptr;
474 /* This is a cute trick to detect unmapped memory, but is unportable,
475 * slow, screws around with madvise, and not actually that useful. */
479 ret = madvise ((void *) ((unsigned long) ptr & (~0xfff)), 4096, 0);
480 if (ret == -1 && errno == ENOMEM) {
481 buffer = g_strdup_printf ("%p (unmapped memory)", ptr);
486 /* nicely printed object */
487 if (object == NULL) {
488 return g_strdup ("(NULL)");
490 if (*(GType *) ptr == GST_TYPE_CAPS) {
491 return gst_caps_to_string ((GstCaps *) ptr);
493 if (*(GType *) ptr == GST_TYPE_STRUCTURE) {
494 return gst_structure_to_string ((GstStructure *) ptr);
497 if (*(guint32 *) ptr == 0xffffffff) {
498 return g_strdup_printf ("<poisoned@%p>", ptr);
501 if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) {
502 return g_strdup_printf ("<%s:%s>", GST_DEBUG_PAD_NAME (object));
504 if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) {
505 return g_strdup_printf ("<%s>", GST_OBJECT_NAME (object));
507 if (G_IS_OBJECT (object)) {
508 return g_strdup_printf ("<%s@%p>", G_OBJECT_TYPE_NAME (object), object);
510 if (GST_IS_MESSAGE (object)) {
511 GstMessage *msg = GST_MESSAGE_CAST (object);
514 if (msg->structure) {
515 s = gst_structure_to_string (msg->structure);
517 s = g_strdup ("(NULL)");
520 ret = g_strdup_printf ("%s message from element '%s': %s",
521 GST_MESSAGE_TYPE_NAME (msg), (msg->src != NULL) ?
522 GST_ELEMENT_NAME (msg->src) : "(NULL)", s);
527 return g_strdup_printf ("%p", ptr);
530 #ifdef HAVE_PRINTF_EXTENSION
533 gst_debug_print_segment (gpointer ptr)
535 GstSegment *segment = (GstSegment *) ptr;
537 /* nicely printed segment */
538 if (segment == NULL) {
539 return g_strdup ("(NULL)");
542 switch (segment->format) {
543 case GST_FORMAT_UNDEFINED:{
544 return g_strdup_printf ("UNDEFINED segment");
546 case GST_FORMAT_TIME:{
547 return g_strdup_printf ("time segment start=%" GST_TIME_FORMAT
548 ", stop=%" GST_TIME_FORMAT ", last_stop=%" GST_TIME_FORMAT
549 ", duration=%" GST_TIME_FORMAT ", rate=%f, applied_rate=%f"
550 ", flags=0x%02x, time=%" GST_TIME_FORMAT ", accum=%" GST_TIME_FORMAT,
551 GST_TIME_ARGS (segment->start), GST_TIME_ARGS (segment->stop),
552 GST_TIME_ARGS (segment->last_stop), GST_TIME_ARGS (segment->duration),
553 segment->rate, segment->applied_rate, (guint) segment->flags,
554 GST_TIME_ARGS (segment->time), GST_TIME_ARGS (segment->accum));
557 const gchar *format_name;
559 format_name = gst_format_get_name (segment->format);
560 if (G_UNLIKELY (format_name == NULL))
561 format_name = "(UNKNOWN FORMAT)";
562 return g_strdup_printf ("%s segment start=%" G_GINT64_FORMAT
563 ", stop=%" G_GINT64_FORMAT ", last_stop=%" G_GINT64_FORMAT
564 ", duration=%" G_GINT64_FORMAT ", rate=%f, applied_rate=%f"
565 ", flags=0x%02x, time=%" GST_TIME_FORMAT ", accum=%" GST_TIME_FORMAT,
566 format_name, segment->start, segment->stop, segment->last_stop,
567 segment->duration, segment->rate, segment->applied_rate,
568 (guint) segment->flags, GST_TIME_ARGS (segment->time),
569 GST_TIME_ARGS (segment->accum));
574 #endif /* HAVE_PRINTF_EXTENSION */
577 * gst_debug_construct_term_color:
578 * @colorinfo: the color info
580 * Constructs a string that can be used for getting the desired color in color
582 * You need to free the string after use.
584 * Returns: a string containing the color definition
587 gst_debug_construct_term_color (guint colorinfo)
592 color = g_string_new ("\033[00");
594 if (colorinfo & GST_DEBUG_BOLD) {
595 g_string_append (color, ";01");
597 if (colorinfo & GST_DEBUG_UNDERLINE) {
598 g_string_append (color, ";04");
600 if (colorinfo & GST_DEBUG_FG_MASK) {
601 g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK);
603 if (colorinfo & GST_DEBUG_BG_MASK) {
604 g_string_append_printf (color, ";4%1d",
605 (colorinfo & GST_DEBUG_BG_MASK) >> 4);
607 g_string_append (color, "m");
610 g_string_free (color, FALSE);
615 * gst_debug_log_default:
616 * @category: category to log
617 * @level: level of the message
618 * @file: the file that emitted the message, usually the __FILE__ identifier
619 * @function: the function that emitted the message
620 * @line: the line from that the message was emitted, usually __LINE__
621 * @message: the actual message
622 * @object: the object this message relates to or NULL if none
623 * @unused: an unused variable, reserved for some user_data.
625 * The default logging handler used by GStreamer. Logging functions get called
626 * whenever a macro like GST_DEBUG or similar is used. This function outputs the
627 * message and additional info using the glib error handler.
628 * You can add other handlers by using gst_debug_add_log_function().
629 * And you can remove this handler by calling
630 * gst_debug_remove_log_function(gst_debug_log_default);
633 gst_debug_log_default (GstDebugCategory * category, GstDebugLevel level,
634 const gchar * file, const gchar * function, gint line,
635 GObject * object, GstDebugMessage * message, gpointer unused)
641 const gchar *levelcolor;
643 GstClockTime elapsed;
644 gboolean free_color = TRUE;
645 gboolean free_obj = TRUE;
646 static const gchar *levelcolormap[] = {
647 "\033[37m", /* GST_LEVEL_NONE */
648 "\033[31;01m", /* GST_LEVEL_ERROR */
649 "\033[33;01m", /* GST_LEVEL_WARNING */
650 "\033[32;01m", /* GST_LEVEL_INFO */
651 "\033[36m", /* GST_LEVEL_DEBUG */
652 "\033[37m" /* GST_LEVEL_LOG */
655 if (level > gst_debug_category_get_threshold (category))
661 if (gst_debug_is_colored ()) {
662 color = gst_debug_construct_term_color (gst_debug_category_get_color
665 g_sprintf (pidcolor, "\033[3%1dm", pid % 6 + 31);
666 levelcolor = levelcolormap[level];
676 obj = gst_debug_print_object (object);
682 #ifdef HAVE_POSIX_TIMERS
686 clock_gettime (CLOCK_MONOTONIC, &now);
687 elapsed = GST_TIMESPEC_TO_TIME (now) - _priv_gst_info_start_time;
693 g_get_current_time (&now);
694 elapsed = GST_TIMEVAL_TO_TIME (now) - _priv_gst_info_start_time;
699 g_printerr ("%s (%p - %" GST_TIME_FORMAT ") %s%20s%s(%s%5d%s) %s%s(%d):%s:%s%s %s\n",
700 gst_debug_level_get_name (level), g_thread_self (),
701 GST_TIME_ARGS (elapsed), color,
702 gst_debug_category_get_name (category), clear, pidcolor, pid, clear,
703 color, file, line, function, obj, clear, gst_debug_message_get (message));
706 g_printerr ("%" GST_TIME_FORMAT
707 " %s%5d%s %p %s%s%s %s%20s %s:%d:%s:%s%s %s\n", GST_TIME_ARGS (elapsed),
708 pidcolor, pid, clear, g_thread_self (), levelcolor,
709 gst_debug_level_get_name (level), clear, color,
710 gst_debug_category_get_name (category), file, line, function, obj, clear,
711 gst_debug_message_get (message));
720 * gst_debug_level_get_name:
721 * @level: the level to get the name for
723 * Get the string representation of a debugging level
728 gst_debug_level_get_name (GstDebugLevel level)
733 case GST_LEVEL_ERROR:
735 case GST_LEVEL_WARNING:
739 case GST_LEVEL_DEBUG:
744 g_warning ("invalid level specified for gst_debug_level_get_name");
750 * gst_debug_add_log_function:
751 * @func: the function to use
754 * Adds the logging function to the list of logging functions.
755 * Be sure to use G_GNUC_NO_INSTRUMENT on that function, it is needed.
758 gst_debug_add_log_function (GstLogFunction func, gpointer data)
763 g_return_if_fail (func != NULL);
765 entry = g_new (LogFuncEntry, 1);
767 entry->user_data = data;
768 /* FIXME: we leak the old list here - other threads might access it right now
769 * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv,
770 * but that is waaay costly.
771 * It'd probably be clever to use some kind of RCU here, but I don't know
772 * anything about that.
774 g_static_mutex_lock (&__log_func_mutex);
775 list = g_slist_copy (__log_functions);
776 __log_functions = g_slist_prepend (list, entry);
777 g_static_mutex_unlock (&__log_func_mutex);
779 GST_DEBUG ("prepended log function %p (user data %p) to log functions",
784 gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func)
786 gpointer entryfunc = (gpointer) (((LogFuncEntry *) entry)->func);
788 return (entryfunc < func) ? -1 : (entryfunc > func) ? 1 : 0;
792 gst_debug_compare_log_function_by_data (gconstpointer entry, gconstpointer data)
794 gpointer entrydata = ((LogFuncEntry *) entry)->user_data;
796 return (entrydata < data) ? -1 : (entrydata > data) ? 1 : 0;
800 gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data)
806 g_static_mutex_lock (&__log_func_mutex);
807 new = __log_functions;
808 while ((found = g_slist_find_custom (new, data, func))) {
809 if (new == __log_functions) {
810 new = g_slist_copy (new);
813 g_free (found->data);
814 new = g_slist_delete_link (new, found);
817 /* FIXME: We leak the old list here. See _add_log_function for why. */
818 __log_functions = new;
819 g_static_mutex_unlock (&__log_func_mutex);
825 * gst_debug_remove_log_function:
826 * @func: the log function to remove
828 * Removes all registered instances of the given logging functions.
830 * Returns: How many instances of the function were removed
833 gst_debug_remove_log_function (GstLogFunction func)
837 g_return_val_if_fail (func != NULL, 0);
840 gst_debug_remove_with_compare_func
841 (gst_debug_compare_log_function_by_func, (gpointer) func);
842 GST_DEBUG ("removed log function %p %d times from log function list", func,
849 * gst_debug_remove_log_function_by_data:
850 * @data: user data of the log function to remove
852 * Removes all registered instances of log functions with the given user data.
854 * Returns: How many instances of the function were removed
857 gst_debug_remove_log_function_by_data (gpointer data)
862 gst_debug_remove_with_compare_func
863 (gst_debug_compare_log_function_by_data, data);
865 ("removed %d log functions with user data %p from log function list",
872 * gst_debug_set_colored:
873 * @colored: Whether to use colored output or not
875 * Sets or unsets the use of coloured debugging output.
878 gst_debug_set_colored (gboolean colored)
880 gst_atomic_int_set (&__use_color, colored ? 1 : 0);
884 * gst_debug_is_colored:
886 * Checks if the debugging output should be colored.
888 * Returns: TRUE, if the debug output should be colored.
891 gst_debug_is_colored (void)
893 return g_atomic_int_get (&__use_color) == 0 ? FALSE : TRUE;
897 * gst_debug_set_active:
898 * @active: Whether to use debugging output or not
900 * If activated, debugging messages are sent to the debugging
902 * It makes sense to deactivate it for speed issues.
903 * <note><para>This function is not threadsafe. It makes sense to only call it
904 * during initialization.</para></note>
907 gst_debug_set_active (gboolean active)
909 __gst_debug_enabled = active;
911 __gst_debug_min = GST_LEVEL_COUNT;
913 __gst_debug_min = GST_LEVEL_NONE;
917 * gst_debug_is_active:
919 * Checks if debugging output is activated.
921 * Returns: TRUE, if debugging is activated
924 gst_debug_is_active (void)
926 return __gst_debug_enabled;
930 * gst_debug_set_default_threshold:
931 * @level: level to set
933 * Sets the default threshold to the given level and updates all categories to
934 * use this threshold.
937 gst_debug_set_default_threshold (GstDebugLevel level)
939 gst_atomic_int_set (&__default_level, level);
940 gst_debug_reset_all_thresholds ();
944 * gst_debug_get_default_threshold:
946 * Returns the default threshold that is used for new categories.
948 * Returns: the default threshold level
951 gst_debug_get_default_threshold (void)
953 return (GstDebugLevel) g_atomic_int_get (&__default_level);
956 gst_debug_reset_threshold (gpointer category, gpointer unused)
958 GstDebugCategory *cat = (GstDebugCategory *) category;
961 g_static_mutex_lock (&__level_name_mutex);
964 LevelNameEntry *entry = walk->data;
966 walk = g_slist_next (walk);
967 if (g_pattern_match_string (entry->pat, cat->name)) {
968 GST_LOG ("category %s matches pattern %p - gets set to level %d",
969 cat->name, entry->pat, entry->level);
970 gst_debug_category_set_threshold (cat, entry->level);
974 gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ());
977 g_static_mutex_unlock (&__level_name_mutex);
980 gst_debug_reset_all_thresholds (void)
982 g_static_mutex_lock (&__cat_mutex);
983 g_slist_foreach (__categories, gst_debug_reset_threshold, NULL);
984 g_static_mutex_unlock (&__cat_mutex);
987 for_each_threshold_by_entry (gpointer data, gpointer user_data)
989 GstDebugCategory *cat = (GstDebugCategory *) data;
990 LevelNameEntry *entry = (LevelNameEntry *) user_data;
992 if (g_pattern_match_string (entry->pat, cat->name)) {
993 GST_LOG ("category %s matches pattern %p - gets set to level %d",
994 cat->name, entry->pat, entry->level);
995 gst_debug_category_set_threshold (cat, entry->level);
1000 * gst_debug_set_threshold_for_name:
1001 * @name: name of the categories to set
1002 * @level: level to set them to
1004 * Sets all categories which match the given glob style pattern to the given
1008 gst_debug_set_threshold_for_name (const gchar * name, GstDebugLevel level)
1011 LevelNameEntry *entry;
1013 g_return_if_fail (name != NULL);
1015 pat = g_pattern_spec_new (name);
1016 entry = g_new (LevelNameEntry, 1);
1018 entry->level = level;
1019 g_static_mutex_lock (&__level_name_mutex);
1020 __level_name = g_slist_prepend (__level_name, entry);
1021 g_static_mutex_unlock (&__level_name_mutex);
1022 g_static_mutex_lock (&__cat_mutex);
1023 g_slist_foreach (__categories, for_each_threshold_by_entry, entry);
1024 g_static_mutex_unlock (&__cat_mutex);
1028 * gst_debug_unset_threshold_for_name:
1029 * @name: name of the categories to set
1031 * Resets all categories with the given name back to the default level.
1034 gst_debug_unset_threshold_for_name (const gchar * name)
1039 g_return_if_fail (name != NULL);
1041 pat = g_pattern_spec_new (name);
1042 g_static_mutex_lock (&__level_name_mutex);
1043 walk = __level_name;
1044 /* improve this if you want, it's mighty slow */
1046 LevelNameEntry *entry = walk->data;
1048 if (g_pattern_spec_equal (entry->pat, pat)) {
1049 __level_name = g_slist_remove_link (__level_name, walk);
1050 g_pattern_spec_free (entry->pat);
1052 g_slist_free_1 (walk);
1053 walk = __level_name;
1056 g_static_mutex_unlock (&__level_name_mutex);
1057 g_pattern_spec_free (pat);
1058 gst_debug_reset_all_thresholds ();
1062 _gst_debug_category_new (const gchar * name, guint color,
1063 const gchar * description)
1065 GstDebugCategory *cat;
1067 g_return_val_if_fail (name != NULL, NULL);
1069 cat = g_new (GstDebugCategory, 1);
1070 cat->name = g_strdup (name);
1072 if (description != NULL) {
1073 cat->description = g_strdup (description);
1075 cat->description = g_strdup ("no description");
1077 gst_atomic_int_set (&cat->threshold, 0);
1078 gst_debug_reset_threshold (cat, NULL);
1080 /* add to category list */
1081 g_static_mutex_lock (&__cat_mutex);
1082 __categories = g_slist_prepend (__categories, cat);
1083 g_static_mutex_unlock (&__cat_mutex);
1089 * gst_debug_category_free:
1090 * @category: #GstDebugCategory to free.
1092 * Removes and frees the category and all associated resources.
1095 gst_debug_category_free (GstDebugCategory * category)
1097 if (category == NULL)
1100 /* remove from category list */
1101 g_static_mutex_lock (&__cat_mutex);
1102 __categories = g_slist_remove (__categories, category);
1103 g_static_mutex_unlock (&__cat_mutex);
1105 g_free ((gpointer) category->name);
1106 g_free ((gpointer) category->description);
1111 * gst_debug_category_set_threshold:
1112 * @category: a #GstDebugCategory to set threshold of.
1113 * @level: the #GstDebugLevel threshold to set.
1115 * Sets the threshold of the category to the given level. Debug information will
1116 * only be output if the threshold is lower or equal to the level of the
1117 * debugging message.
1119 * Do not use this function in production code, because other functions may
1120 * change the threshold of categories as side effect. It is however a nice
1121 * function to use when debugging (even from gdb).
1125 gst_debug_category_set_threshold (GstDebugCategory * category,
1126 GstDebugLevel level)
1128 g_return_if_fail (category != NULL);
1130 if (level > __gst_debug_min) {
1131 __gst_debug_enabled = TRUE;
1132 __gst_debug_min = level;
1135 gst_atomic_int_set (&category->threshold, level);
1139 * gst_debug_category_reset_threshold:
1140 * @category: a #GstDebugCategory to reset threshold of.
1142 * Resets the threshold of the category to the default level. Debug information
1143 * will only be output if the threshold is lower or equal to the level of the
1144 * debugging message.
1145 * Use this function to set the threshold back to where it was after using
1146 * gst_debug_category_set_threshold().
1149 gst_debug_category_reset_threshold (GstDebugCategory * category)
1151 gst_debug_reset_threshold (category, NULL);
1155 * gst_debug_category_get_threshold:
1156 * @category: a #GstDebugCategory to get threshold of.
1158 * Returns the threshold of a #GstDebugCategory.
1160 * Returns: the #GstDebugLevel that is used as threshold.
1163 gst_debug_category_get_threshold (GstDebugCategory * category)
1165 return g_atomic_int_get (&category->threshold);
1169 * gst_debug_category_get_name:
1170 * @category: a #GstDebugCategory to get name of.
1172 * Returns the name of a debug category.
1174 * Returns: the name of the category.
1177 gst_debug_category_get_name (GstDebugCategory * category)
1179 return category->name;
1183 * gst_debug_category_get_color:
1184 * @category: a #GstDebugCategory to get the color of.
1186 * Returns the color of a debug category used when printing output in this
1189 * Returns: the color of the category.
1192 gst_debug_category_get_color (GstDebugCategory * category)
1194 return category->color;
1198 * gst_debug_category_get_description:
1199 * @category: a #GstDebugCategory to get the description of.
1201 * Returns the description of a debug category.
1203 * Returns: the description of the category.
1206 gst_debug_category_get_description (GstDebugCategory * category)
1208 return category->description;
1212 * gst_debug_get_all_categories:
1214 * Returns a snapshot of a all categories that are currently in use . This list
1215 * may change anytime.
1216 * The caller has to free the list after use.
1218 * Returns: the list of categories
1221 gst_debug_get_all_categories (void)
1225 g_static_mutex_lock (&__cat_mutex);
1226 ret = g_slist_copy (__categories);
1227 g_static_mutex_unlock (&__cat_mutex);
1232 /*** FUNCTION POINTERS ********************************************************/
1234 static GHashTable *__gst_function_pointers; /* NULL */
1235 static GStaticMutex __dbg_functions_mutex = G_STATIC_MUTEX_INIT;
1238 _gst_debug_nameof_funcptr (GstDebugFuncPtr ptr)
1239 G_GNUC_NO_INSTRUMENT;
1241 /* This function MUST NOT return NULL */
1242 const gchar *_gst_debug_nameof_funcptr (GstDebugFuncPtr func)
1250 if (G_UNLIKELY (func == NULL))
1253 g_static_mutex_lock (&__dbg_functions_mutex);
1254 if (G_LIKELY (__gst_function_pointers)) {
1255 ptrname = g_hash_table_lookup (__gst_function_pointers, (gpointer) func);
1256 g_static_mutex_unlock (&__dbg_functions_mutex);
1257 if (G_LIKELY (ptrname))
1260 g_static_mutex_unlock (&__dbg_functions_mutex);
1262 /* we need to create an entry in the hash table for this one so we don't leak
1265 if (dladdr ((gpointer) func, &dl_info) && dl_info.dli_sname) {
1266 gchar *name = g_strdup (dl_info.dli_sname);
1268 _gst_debug_register_funcptr (func, name);
1273 gchar *name = g_strdup_printf ("%p", (gpointer) func);
1275 _gst_debug_register_funcptr (func, name);
1281 _gst_debug_register_funcptr (GstDebugFuncPtr func, const gchar * ptrname)
1283 gpointer ptr = (gpointer) func;
1285 g_static_mutex_lock (&__dbg_functions_mutex);
1287 if (!__gst_function_pointers)
1288 __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal);
1289 if (!g_hash_table_lookup (__gst_function_pointers, ptr))
1290 g_hash_table_insert (__gst_function_pointers, ptr, (gpointer) ptrname);
1292 g_static_mutex_unlock (&__dbg_functions_mutex);
1295 /*** PRINTF EXTENSIONS ********************************************************/
1297 #ifdef HAVE_PRINTF_EXTENSION
1299 _gst_info_printf_extension_ptr (FILE * stream, const struct printf_info *info,
1300 const void *const *args)
1307 ptr = *(void **) args[0];
1309 buffer = gst_debug_print_object (ptr);
1310 len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
1318 _gst_info_printf_extension_segment (FILE * stream,
1319 const struct printf_info *info, const void *const *args)
1326 ptr = *(void **) args[0];
1328 buffer = gst_debug_print_segment (ptr);
1329 len = fprintf (stream, "%*s", (info->left ? -info->width : info->width),
1337 _gst_info_printf_extension_arginfo (const struct printf_info *info, size_t n,
1341 argtypes[0] = PA_POINTER;
1344 #endif /* HAVE_PRINTF_EXTENSION */
1346 #else /* !GST_DISABLE_GST_DEBUG */
1348 gst_debug_remove_log_function (GstLogFunction func)
1354 gst_debug_remove_log_function_by_data (gpointer data)
1360 __gst_in_valgrind (void)
1365 #endif /* GST_DISABLE_GST_DEBUG */
1368 #ifdef GST_ENABLE_FUNC_INSTRUMENTATION
1369 /* FIXME make this thread specific */
1370 static GSList *stack_trace = NULL;
1373 __cyg_profile_func_enter (void *this_fn, void *call_site)
1374 G_GNUC_NO_INSTRUMENT;
1375 void __cyg_profile_func_enter (void *this_fn, void *call_site)
1377 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1378 gchar *site = _gst_debug_nameof_funcptr (call_site);
1380 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "entering function %s from %s", name,
1383 g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)",
1384 this_fn, name, call_site, site));
1391 __cyg_profile_func_exit (void *this_fn, void *call_site)
1392 G_GNUC_NO_INSTRUMENT;
1393 void __cyg_profile_func_exit (void *this_fn, void *call_site)
1395 gchar *name = _gst_debug_nameof_funcptr (this_fn);
1397 GST_CAT_DEBUG (GST_CAT_CALL_TRACE, "leaving function %s", name);
1398 g_free (stack_trace->data);
1399 stack_trace = g_slist_delete_link (stack_trace, stack_trace);
1405 * gst_debug_print_stack_trace:
1407 * If GST_ENABLE_FUNC_INSTRUMENTATION is defined a stacktrace is available for
1408 * gstreamer code, which can be printed with this function.
1411 gst_debug_print_stack_trace (void)
1413 GSList *walk = stack_trace;
1417 walk = g_slist_next (walk);
1420 gchar *name = (gchar *) walk->data;
1422 g_print ("#%-2d %s\n", count++, name);
1424 walk = g_slist_next (walk);
1429 gst_debug_print_stack_trace (void)
1431 /* nothing because it's compiled out */
1434 #endif /* GST_ENABLE_FUNC_INSTRUMENTATION */