/* GStreamer * Copyright (C) 1999,2000 Erik Walthinsen * 2000 Wim Taymans * 2003 Benjamin Otte * * gstinfo.c: debugging functions * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include "gst_private.h" #include "gstinfo.h" #ifndef GST_DISABLE_GST_DEBUG #include #include #include "gstinfo.h" #include "gstlog.h" #include "gst_private.h" #include "gstelement.h" #include "gstpad.h" #include "gstscheduler.h" #include "gst_private.h" GST_DEBUG_CATEGORY_STATIC(GST_CAT_DEBUG); #if defined __sgi__ #include typedef struct DL_INFO { const char * dli_fname; void * dli_fbase; const char * dli_sname; void * dli_saddr; int dli_version; int dli_reserved1; long dli_reserved[4]; } Dl_info; #define _RLD_DLADDR 14 int dladdr(void *address, Dl_info *dl); int dladdr(void *address, Dl_info *dl) { void *v; v = _rld_new_interface(_RLD_DLADDR,address,dl); return (int)v; } #endif /* __sgi__ */ extern gchar *_gst_progname; static void gst_debug_reset_threshold (gpointer category, gpointer unused); static void gst_debug_reset_all_thresholds (void); /* list of all name/level pairs from --gst-debug and GST_DEBUG */ static GStaticMutex __level_name_mutex = G_STATIC_MUTEX_INIT; static GSList *__level_name = NULL; typedef struct { GPatternSpec * pat; GstDebugLevel level; } LevelNameEntry; /* list of all categories */ static GStaticMutex __cat_mutex = G_STATIC_MUTEX_INIT; static GSList *__categories = NULL; /* all registered debug handlers */ typedef struct { GstLogFunction func; gpointer user_data; } LogFuncEntry; static GStaticMutex __log_func_mutex = G_STATIC_MUTEX_INIT; static GSList *__log_functions = NULL; static GstAtomicInt __default_level; static GstAtomicInt __use_color; gboolean __gst_debug_enabled = TRUE; GstDebugCategory *GST_CAT_DEFAULT = NULL; GstDebugCategory *GST_CAT_GST_INIT = NULL; GstDebugCategory *GST_CAT_COTHREADS = NULL; GstDebugCategory *GST_CAT_COTHREAD_SWITCH = NULL; GstDebugCategory *GST_CAT_AUTOPLUG = NULL; GstDebugCategory *GST_CAT_AUTOPLUG_ATTEMPT = NULL; GstDebugCategory *GST_CAT_PARENTAGE = NULL; GstDebugCategory *GST_CAT_STATES = NULL; GstDebugCategory *GST_CAT_PLANNING = NULL; GstDebugCategory *GST_CAT_SCHEDULING = NULL; GstDebugCategory *GST_CAT_DATAFLOW = NULL; GstDebugCategory *GST_CAT_BUFFER = NULL; GstDebugCategory *GST_CAT_CAPS = NULL; GstDebugCategory *GST_CAT_CLOCK = NULL; GstDebugCategory *GST_CAT_ELEMENT_PADS = NULL; GstDebugCategory *GST_CAT_ELEMENT_FACTORY = NULL; GstDebugCategory *GST_CAT_PADS = NULL; GstDebugCategory *GST_CAT_PIPELINE = NULL; GstDebugCategory *GST_CAT_PLUGIN_LOADING = NULL; GstDebugCategory *GST_CAT_PLUGIN_INFO = NULL; GstDebugCategory *GST_CAT_PROPERTIES = NULL; GstDebugCategory *GST_CAT_THREAD = NULL; GstDebugCategory *GST_CAT_TYPES = NULL; GstDebugCategory *GST_CAT_XML = NULL; GstDebugCategory *GST_CAT_NEGOTIATION = NULL; GstDebugCategory *GST_CAT_REFCOUNTING = NULL; GstDebugCategory *GST_CAT_EVENT = NULL; GstDebugCategory *GST_CAT_PARAMS = NULL; GstDebugCategory *GST_CAT_CALL_TRACE = NULL; GstDebugCategory *GST_CAT_SEEK = NULL; /** * _gst_debug_init: * * Initializes the debugging system. * Normally you don't want to call this, because gst_init does it for you. */ void _gst_debug_init (void) { gst_atomic_int_init (&__default_level, GST_LEVEL_DEFAULT); gst_atomic_int_init (&__use_color, 1); /* do NOT use a single debug function before this line has been run */ GST_CAT_DEFAULT = _gst_debug_category_new ("default", GST_DEBUG_UNDERLINE, NULL); GST_CAT_DEBUG = _gst_debug_category_new ("GST_DEBUG", GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, "debugging subsystem"); gst_debug_add_log_function (gst_debug_log_default, NULL); /* FIXME: add descriptions here */ GST_CAT_GST_INIT = _gst_debug_category_new ("GST_INIT", GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL); GST_CAT_COTHREADS = _gst_debug_category_new ("GST_COTHREADS", GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL); GST_CAT_COTHREAD_SWITCH = _gst_debug_category_new ("GST_COTHREAD_SWITCH", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_GREEN, NULL); GST_CAT_AUTOPLUG = _gst_debug_category_new ("GST_AUTOPLUG", GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL); GST_CAT_AUTOPLUG_ATTEMPT = _gst_debug_category_new ("GST_AUTOPLUG_ATTEMPT", GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN | GST_DEBUG_BG_BLUE, NULL); GST_CAT_PARENTAGE = _gst_debug_category_new ("GST_PARENTAGE", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_STATES = _gst_debug_category_new ("GST_STATES", GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL); GST_CAT_PLANNING = _gst_debug_category_new ("GST_PLANNING", GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL); GST_CAT_SCHEDULING = _gst_debug_category_new ("GST_SCHEDULING", GST_DEBUG_BOLD | GST_DEBUG_FG_MAGENTA, NULL); GST_CAT_DATAFLOW = _gst_debug_category_new ("GST_DATAFLOW", GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL); GST_CAT_BUFFER = _gst_debug_category_new ("GST_BUFFER", GST_DEBUG_BOLD | GST_DEBUG_FG_GREEN, NULL); GST_CAT_CAPS = _gst_debug_category_new ("GST_CAPS", GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL); GST_CAT_CLOCK = _gst_debug_category_new ("GST_CLOCK", GST_DEBUG_BOLD | GST_DEBUG_FG_YELLOW, NULL); GST_CAT_ELEMENT_PADS = _gst_debug_category_new ("GST_ELEMENT_PADS", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_ELEMENT_FACTORY = _gst_debug_category_new ("GST_ELEMENT_FACTORY", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_PADS = _gst_debug_category_new ("GST_PADS", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_PIPELINE = _gst_debug_category_new ("GST_PIPELINE", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_PLUGIN_LOADING = _gst_debug_category_new ("GST_PLUGIN_LOADING", GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL); GST_CAT_PLUGIN_INFO = _gst_debug_category_new ("GST_PLUGIN_INFO", GST_DEBUG_BOLD | GST_DEBUG_FG_CYAN, NULL); GST_CAT_PROPERTIES = _gst_debug_category_new ("GST_PROPERTIES", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_BLUE, NULL); GST_CAT_THREAD = _gst_debug_category_new ("GST_THREAD", GST_DEBUG_BOLD | GST_DEBUG_FG_RED, NULL); GST_CAT_TYPES = _gst_debug_category_new ("GST_TYPES", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_XML = _gst_debug_category_new ("GST_XML", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_NEGOTIATION = _gst_debug_category_new ("GST_NEGOTIATION", GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE, NULL); GST_CAT_REFCOUNTING = _gst_debug_category_new ("GST_REFCOUNTING", GST_DEBUG_BOLD | GST_DEBUG_FG_BLUE | GST_DEBUG_BG_GREEN, NULL); GST_CAT_EVENT = _gst_debug_category_new ("GST_EVENT", GST_DEBUG_BOLD | GST_DEBUG_FG_WHITE | GST_DEBUG_BG_RED, NULL); GST_CAT_PARAMS = _gst_debug_category_new ("GST_PARAMS", GST_DEBUG_BOLD | GST_DEBUG_FG_BLACK | GST_DEBUG_BG_YELLOW, NULL); GST_CAT_CALL_TRACE = _gst_debug_category_new ("GST_CALL_TRACE", GST_DEBUG_BOLD, NULL); GST_CAT_SEEK = _gst_debug_category_new ("GST_SEEK", 0, "plugins reacting to seek events"); } /* we can't do this further above, because we initialize the GST_CAT_DEFAULT struct */ #define GST_CAT_DEFAULT GST_CAT_DEBUG /** * gst_debug_log: * @category: category to log * @level: level of the message is in * @file: the file that emitted the message, usually the __FILE__ identifier * @function: the function that emitted the message * @line: the line from that the message was emitted, usually __LINE__ * @object: the object this message relates to or NULL if none * @format: a printf style format string * @...: optional arguments for the format * * Logs the given message using the currently registered debugging handlers. */ void gst_debug_log (GstDebugCategory *category, GstDebugLevel level, const gchar *file, const gchar *function, gint line, GObject *object, gchar *format, ...) { va_list var_args; va_start (var_args, format); gst_debug_logv (category, level, file, function, line, object, format, var_args); va_end (var_args); } /** * gst_debug_logv: * @category: category to log * @level: level of the message is in * @file: the file that emitted the message, usually the __FILE__ identifier * @function: the function that emitted the message * @line: the line from that the message was emitted, usually __LINE__ * @object: the object this message relates to or NULL if none * @format: a printf style format string * @args: optional arguments for the format * * Logs the given message using the currently registered debugging handlers. */ void gst_debug_logv (GstDebugCategory *category, GstDebugLevel level, const gchar *file, const gchar *function, gint line, GObject *object, gchar *format, va_list args) { gchar *message; LogFuncEntry *entry; GSList *handler; g_return_if_fail (category != NULL); g_return_if_fail (file != NULL); g_return_if_fail (function != NULL); g_return_if_fail (format != NULL); message = g_strdup_vprintf (format, args); handler = __log_functions; while (handler) { entry = handler->data; handler = g_slist_next (handler); entry->func (category, level, file, function, line, object, message, entry->user_data); } g_free (message); } /** * gst_debug_construct_term_color: * @colorinfo: the color info * * Constructs a string that can be used for getting the desired color in color * terminals. * You need to free the string after use. * * Returns: a string containing the color definition */ gchar * gst_debug_construct_term_color (guint colorinfo) { GString *color; gchar *ret; color = g_string_new ("\033[00"); if (colorinfo & GST_DEBUG_BOLD) { g_string_append (color, ";01"); } if (colorinfo & GST_DEBUG_UNDERLINE) { g_string_append (color, ";04"); } if (colorinfo & GST_DEBUG_FG_MASK) { g_string_append_printf (color, ";3%1d", colorinfo & GST_DEBUG_FG_MASK); } if (colorinfo & GST_DEBUG_BG_MASK) { g_string_append_printf (color, ";4%1d", (colorinfo & GST_DEBUG_BG_MASK) >> 4); } g_string_append (color, "m"); ret = color->str; g_string_free (color, FALSE); return ret; } /** * gst_debug_log_default: * @category: category to log * @level: level of the message * @file: the file that emitted the message, usually the __FILE__ identifier * @function: the function that emitted the message * @line: the line from that the message was emitted, usually __LINE__ * @message: the actual message * @object: the object this message relates to or NULL if none * @unused: an unused variable, reserved for some user_data. * * The default logging handler used by GStreamer. Logging functions get called * whenever a macro like GST_DEBUG or similar is used. This function outputs the * message and additional info using the glib error handler. * You can add other handlers by using #gst_debug_add_log_function. * And you can remove this handler by calling * gst_debug_remove_log_function (gst_debug_log_default); */ void gst_debug_log_default (GstDebugCategory *category, GstDebugLevel level, const gchar *file, const gchar *function, gint line, GObject *object, gchar *message, gpointer unused) { gchar *color; gchar *clear; gchar *obj; gchar *pidcolor; gint pid; if (level > gst_debug_category_get_threshold (category)) return; pid = getpid(); /* color info */ if (gst_debug_is_colored ()) { color = gst_debug_construct_term_color (gst_debug_category_get_color (category)); clear = "\033[00m"; pidcolor = g_strdup_printf ("\033[3%1dm", pid % 6 + 31); } else { color = g_strdup (""); clear = ""; pidcolor = g_strdup (""); } /* nicely printed object */ if (object == NULL) { obj = g_strdup (""); } else if (GST_IS_PAD (object) && GST_OBJECT_NAME (object)) { obj = g_strdup_printf (" [%s:%s]", GST_DEBUG_PAD_NAME (object)); } else if (GST_IS_OBJECT (object) && GST_OBJECT_NAME (object)) { obj = g_strdup_printf (" [%s]", GST_OBJECT_NAME (object)); } else { obj = g_strdup_printf (" [%s@%p]", G_OBJECT_TYPE_NAME(object), object); } g_printerr ("%s %s%15s%s(%s%5d%s) %s%s(%d):%s:%s%s %s\n", gst_debug_level_get_name (level), color, gst_debug_category_get_name (category), clear, pidcolor, pid, clear, color, file, line, function, obj, clear, message); g_free (color); g_free (pidcolor); g_free (obj); } /** * gst_debug_level_get_name: * @level: the level to get the name for * * Get the string trepresentation of a debugging level * * Returns: the name */ const gchar * gst_debug_level_get_name (GstDebugLevel level) { switch (level) { case GST_LEVEL_NONE: return ""; case GST_LEVEL_ERROR: return "ERROR"; case GST_LEVEL_WARNING: return "WARN "; case GST_LEVEL_INFO: return "INFO "; case GST_LEVEL_DEBUG: return "DEBUG"; case GST_LEVEL_LOG: return "LOG "; default: g_warning ("invalid level specified for gst_debug_level_get_name"); return ""; } } /** * gst_debug_add_log_function: * @func: the function to use * @data: user data * * Adds the logging function to the list of logging functions. * Be sure to use G_GNUC_NO_INSTRUMENT on that function, it is needed. */ void gst_debug_add_log_function (GstLogFunction func, gpointer data) { LogFuncEntry *entry; GSList *list; g_return_if_fail (func != NULL); entry = g_new (LogFuncEntry, 1); entry->func = func; entry->user_data = data; /* FIXME: we leak the old list here - other threads might access it right now * in gst_debug_logv. Another solution is to lock the mutex in gst_debug_logv, * but that is waaay costly. * It'd probably be clever to use some kind of RCU here, but I don't know * anything about that. */ g_static_mutex_lock (&__log_func_mutex); list = g_slist_copy (__log_functions); __log_functions = g_slist_prepend (list, entry); g_static_mutex_unlock (&__log_func_mutex); GST_DEBUG ("prepended log function %p (user data %p) to log functions", func, data); } static gint gst_debug_compare_log_function_by_func (gconstpointer entry, gconstpointer func) { gpointer entryfunc = ((LogFuncEntry *) entry)->func; return (entryfunc < func) ? -1 : (entryfunc > func) ? 1 : 0; } static gint gst_debug_compare_log_function_by_data (gconstpointer entry, gconstpointer data) { gpointer entrydata = ((LogFuncEntry *) entry)->user_data; return (entrydata < data) ? -1 : (entrydata > data) ? 1 : 0; } static guint gst_debug_remove_with_compare_func (GCompareFunc func, gpointer data) { GSList *found; GSList *new; guint removals = 0; g_static_mutex_lock (&__log_func_mutex); new = __log_functions; while ((found = g_slist_find_custom (new, func, gst_debug_compare_log_function_by_func))) { g_free (found->data); if (removals == 0) { new = g_slist_copy (new); } new = g_slist_delete_link (new, found); removals++; } /* FIXME: We leak the old list here. See _add_log_function for why. */ __log_functions = new; g_static_mutex_unlock (&__log_func_mutex); return removals; } /** * gst_debug_remove_log_function: * @func: the log function to remove * * Removes all registrered instances of the given logging functions. * * Returns: How many instances of the function were removed */ guint gst_debug_remove_log_function (GstLogFunction func) { guint removals; g_return_val_if_fail (func != NULL, 0); removals = gst_debug_remove_with_compare_func (gst_debug_compare_log_function_by_func, func); GST_DEBUG ("removed log function %p %d times from log function list", func, removals); return removals; } /** * gst_debug_remove_log_function_by_data: * @data: user data of the log function to remove * * Removes all registrered instances of log functions with the given user data. * * Returns: How many instances of the function were removed */ guint gst_debug_remove_log_function_by_data (gpointer data) { guint removals; removals = gst_debug_remove_with_compare_func (gst_debug_compare_log_function_by_data, data); GST_DEBUG ("removed %d log functions with user data %p from log function list", removals, data); return removals; } /** * gst_debug_set_colored: * @colored: Whether to use colored output or not * * Sets or unsets the use of coloured debugging output. */ void gst_debug_set_colored (gboolean colored) { gst_atomic_int_set (&__use_color, colored ? 1 : 0); } /** * gst_debug_is_colored: * * Checks if the debugging output should be colored. * * Returns: TRUE, if the debug output should be colored. */ gboolean gst_debug_is_colored (void) { return gst_atomic_int_read (&__use_color) == 0 ? FALSE : TRUE; } /** * gst_debug_set_active: * @active: Whether to use debugging output or not * * If activated, debugging messages are sent to the debugging * handlers. * It makes sense to deactivate it for speed issues. * This function is not threadsafe. It makes sense to only call it * during initialization. */ void gst_debug_set_active (gboolean active) { __gst_debug_enabled = active; } /** * gst_debug_is_active: * * Checks if debugging output is activated. * * Returns: TRUE, if debugging is activated */ gboolean gst_debug_is_active (void) { return __gst_debug_enabled; } /** * gst_debug_set_default_threshold: * @level: level to set * * Sets the default threshold to the given level and updates all categories to * use this threshold. */ void gst_debug_set_default_threshold (GstDebugLevel level) { gst_atomic_int_set (&__default_level, level); gst_debug_reset_all_thresholds (); } /** * gst_debug_get_default_threshold: * * Returns the default threshold that is used for new categories. * * Returns: the default threshold level */ GstDebugLevel gst_debug_get_default_threshold (void) { return (GstDebugLevel) gst_atomic_int_read (&__default_level); } static void gst_debug_reset_threshold (gpointer category, gpointer unused) { GstDebugCategory *cat = (GstDebugCategory *) category; GSList *walk; g_static_mutex_lock (&__level_name_mutex); walk = __level_name; while (walk) { LevelNameEntry *entry = walk->data; walk = g_slist_next (walk); if (g_pattern_match_string (entry->pat, cat->name)) { GST_LOG ("category %s matches pattern %p - gets set to level %d", cat->name, entry->pat, entry->level); gst_debug_category_set_threshold (cat, entry->level); goto exit; } } gst_debug_category_set_threshold (cat, gst_debug_get_default_threshold ()); exit: g_static_mutex_unlock (&__level_name_mutex); } static void gst_debug_reset_all_thresholds (void) { g_static_mutex_lock (&__cat_mutex); g_slist_foreach (__categories, gst_debug_reset_threshold, NULL); g_static_mutex_unlock (&__cat_mutex); } static void for_each_threshold_by_entry (gpointer data, gpointer user_data) { GstDebugCategory *cat = (GstDebugCategory *) data; LevelNameEntry *entry = (LevelNameEntry *) user_data; if (g_pattern_match_string (entry->pat, cat->name)) { GST_LOG ("category %s matches pattern %p - gets set to level %d", cat->name, entry->pat, entry->level); gst_debug_category_set_threshold (cat, entry->level); } } /** * gst_debug_set_threshold_for_name: * @name: name of the categories to set * @level: level to set them to * * Sets all categories which match the gven glob style pattern to the given * level. */ void gst_debug_set_threshold_for_name (const gchar *name, GstDebugLevel level) { GPatternSpec *pat; LevelNameEntry *entry; g_return_if_fail (name != NULL); pat = g_pattern_spec_new (name); entry = g_new (LevelNameEntry, 1); entry->pat = pat; entry->level = level; g_static_mutex_lock (&__level_name_mutex); __level_name = g_slist_prepend (__level_name, entry); g_static_mutex_unlock (&__level_name_mutex); g_static_mutex_lock (&__cat_mutex); g_slist_foreach (__categories, for_each_threshold_by_entry, entry); g_static_mutex_unlock (&__cat_mutex); } /** * gst_debug_unset_threshold_for_name: * @name: name of the categories to set * * Resets all categories with the given name back to the default level. */ void gst_debug_unset_threshold_for_name (const gchar *name) { GSList *walk; GPatternSpec *pat; g_return_if_fail (name != NULL); pat = g_pattern_spec_new (name); g_static_mutex_lock (&__level_name_mutex); walk = __level_name; /* improve this if you want, it's mighty slow */ while (walk) { LevelNameEntry *entry = walk->data; if (g_pattern_spec_equal (entry->pat, pat)) { __level_name = g_slist_remove_link (__level_name, walk); g_pattern_spec_free (entry->pat); g_free (entry); g_slist_free_1 (walk); walk = __level_name; } } g_static_mutex_unlock (&__level_name_mutex); g_pattern_spec_free (pat); gst_debug_reset_all_thresholds (); } GstDebugCategory * _gst_debug_category_new (gchar *name, guint color, gchar *description) { GstDebugCategory *cat; g_return_val_if_fail (name != NULL, NULL); cat = g_new (GstDebugCategory, 1); cat->name = g_strdup (name); cat->color = color; if (description != NULL) { cat->description = g_strdup (description); } else { cat->description = g_strdup ("no description"); } cat->threshold = g_new (GstAtomicInt, 1); gst_atomic_int_init (cat->threshold, 0); gst_debug_reset_threshold (cat, NULL); /* add to category list */ g_static_mutex_lock (&__cat_mutex); __categories = g_slist_prepend (__categories, cat); g_static_mutex_unlock (&__cat_mutex); return cat; } /** * gst_debug_category_free: * @category: category to remove * * Removes and frees the category and all associated ressources. */ void gst_debug_category_free (GstDebugCategory *category) { if (category == NULL) return; /* remove from category list */ g_static_mutex_lock (&__cat_mutex); __categories = g_slist_remove (__categories, category); g_static_mutex_unlock (&__cat_mutex); g_free ((gpointer) category->name); g_free ((gpointer) category->description); gst_atomic_int_destroy (category->threshold); g_free (category->threshold); g_free (category); } /** * gst_debug_category_set_threshold: * @category: category to set threshold for * @level: the threshold to set * * Sets the threshold of the category to the given level. Debug information will * only be output if the threshold is lower or equal to the level of the * debugging message. * * Do not use this function in production code, because other functions may * change the threshold of categories as side effect. It is however a nice * function to use when debugging (even from gdb). * */ void gst_debug_category_set_threshold (GstDebugCategory *category, GstDebugLevel level) { g_return_if_fail (category != NULL); gst_atomic_int_set (category->threshold, level); } /** * gst_debug_category_reset_threshold: * @category: category to set threshold for * * Resets the threshold of the category to the default level. Debug information * will only be output if the threshold is lower or equal to the level of the * debugging message. * Use this function to set the threshold back to where it was after using * gst_debug_category_set_threshold(). */ void gst_debug_category_reset_threshold (GstDebugCategory *category) { gst_debug_reset_threshold (category, NULL); } /** * gst_debug_category_get_threshold: * @category: category to get threshold for * * Returns the threshold of a #GstCategory. * * Returns: the level that is used as threshold */ GstDebugLevel gst_debug_category_get_threshold (GstDebugCategory *category) { return gst_atomic_int_read (category->threshold); } /** * gst_debug_category_get_name: * @category: category to get name for * * Returns the name of a #GstCategory. * * Returns: the name of the category */ const gchar * gst_debug_category_get_name (GstDebugCategory *category) { return category->name; } /** * gst_debug_category_get_color: * @category: category to get color for * * Returns the color of a #GstCategory to use when outputting this. * * Returns: the color of the category */ guint gst_debug_category_get_color (GstDebugCategory *category) { return category->color; } /** * gst_debug_category_get_description: * @category: category to get description for * * Returns the description of a #GstCategory * * Returns: the description of the category */ const gchar * gst_debug_category_get_description (GstDebugCategory *category) { return category->description; } /** * gst_debug_get_all_categories: * * Returns a snapshot of a all categories that are currently in use . This list * may change anytime. * The caller has to free the list after use. * This function is not threadsafe, so only use it while only the * main thread is running. * * Returns: the list of categories */ GSList * gst_debug_get_all_categories (void) { GSList *ret; g_static_mutex_lock (&__cat_mutex); ret = g_slist_copy (__categories); g_static_mutex_unlock (&__cat_mutex); return ret; } /*** FUNCTION POINTERS ********************************************************/ GHashTable *__gst_function_pointers = NULL; gchar *_gst_debug_nameof_funcptr (void *ptr) G_GNUC_NO_INSTRUMENT; /* This function MUST NOT return NULL */ gchar * _gst_debug_nameof_funcptr (void *ptr) { gchar *ptrname; Dl_info dlinfo; if (__gst_function_pointers && (ptrname = g_hash_table_lookup(__gst_function_pointers,ptr))) { return g_strdup(ptrname); } else if (dladdr(ptr,&dlinfo) && dlinfo.dli_sname) { return g_strdup(dlinfo.dli_sname); } else { return g_strdup_printf("%p",ptr); } } void * _gst_debug_register_funcptr (void *ptr, gchar *ptrname) { if (!__gst_function_pointers) __gst_function_pointers = g_hash_table_new (g_direct_hash, g_direct_equal); if (!g_hash_table_lookup (__gst_function_pointers, ptr)) g_hash_table_insert (__gst_function_pointers, ptr, ptrname); return ptr; } #endif /* GST_DISABLE_GST_DEBUG */ #ifdef GST_ENABLE_FUNC_INSTRUMENTATION /* FIXME make this thread specific */ static GSList *stack_trace = NULL; void __cyg_profile_func_enter(void *this_fn,void *call_site) G_GNUC_NO_INSTRUMENT; void __cyg_profile_func_enter(void *this_fn,void *call_site) { gchar *name = _gst_debug_nameof_funcptr (this_fn); gchar *site = _gst_debug_nameof_funcptr (call_site); GST_CAT_DEBUG(GST_CAT_CALL_TRACE, "entering function %s from %s", name, site); stack_trace = g_slist_prepend (stack_trace, g_strdup_printf ("%8p in %s from %p (%s)", this_fn, name, call_site, site)); g_free (name); g_free (site); } void __cyg_profile_func_exit(void *this_fn,void *call_site) G_GNUC_NO_INSTRUMENT; void __cyg_profile_func_exit(void *this_fn,void *call_site) { gchar *name = _gst_debug_nameof_funcptr (this_fn); GST_CAT_DEBUG(GST_CAT_CALL_TRACE, "leaving function %s", name); g_free (stack_trace->data); stack_trace = g_slist_delete_link (stack_trace, stack_trace); g_free (name); } void gst_debug_print_stack_trace (void) { GSList *walk = stack_trace; gint count = 0; if (walk) walk = g_slist_next (walk); while (walk) { gchar *name = (gchar *) walk->data; g_print ("#%-2d %s\n", count++, name); walk = g_slist_next (walk); } } #else void gst_debug_print_stack_trace (void) { /* nothing because it's compiled out */ } #endif /* GST_ENABLE_FUNC_INTSTRUMENTATION */