gstreamer/gst/gstinfo.c

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
* 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
*
* 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 <dlfcn.h>
#include <unistd.h>
#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 <rld_interface.h>
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;
static GstAtomicInt __enabled;
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;
/**
* _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);
gst_atomic_int_init (&__enabled, 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);
}
/* 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);
g_static_mutex_lock (&__log_func_mutex);
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_static_mutex_unlock (&__log_func_mutex);
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;
g_return_if_fail (func != NULL);
entry = g_new (LogFuncEntry, 1);
entry->func = func;
entry->user_data = data;
g_static_mutex_lock (&__log_func_mutex);
__log_functions = g_slist_prepend (__log_functions, 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;
}
/**
* 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)
{
GSList *found;
guint removals = 0;
g_return_val_if_fail (func != NULL, 0);
g_static_mutex_lock (&__log_func_mutex);
while ((found = g_slist_find_custom (__log_functions, func,
gst_debug_compare_log_function_by_func))) {
g_free (found->data);
__log_functions = g_slist_delete_link (__log_functions, found);
removals++;
}
g_static_mutex_unlock (&__log_func_mutex);
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)
{
GSList *found;
guint removals = 0;
g_static_mutex_lock (&__log_func_mutex);
while ((found = g_slist_find_custom (__log_functions, data,
gst_debug_compare_log_function_by_data))) {
g_free (found->data);
__log_functions = g_slist_delete_link (__log_functions, found);
removals++;
}
g_static_mutex_unlock (&__log_func_mutex);
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.
*/
void
gst_debug_set_active (gboolean active)
{
gst_atomic_int_set (&__enabled, active ? 1 : 0);
}
/**
* gst_debug_is_active:
*
* Checks if debugging output is activated.
*
* Returns: TRUE, if debugging is activated
*/
gboolean
gst_debug_is_active (void)
{
return gst_atomic_int_read (&__enabled) == 0 ? FALSE : TRUE;
}
/**
* 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.
* <note><para>
* 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).
* </para></note>
*/
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.
* <emphasis>This function is not threadsafe, so only use it while only the
* main thread is running.</emphasis>
*
* 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 */