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>
*
* gstinfo.c: INFO, ERROR, and DEBUG systems
*
* 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 <dlfcn.h>
#include "gst_private.h"
#include "gstelement.h"
#include "gstpad.h"
extern gchar *_gst_progname;
/***** Categories and colorization *****/
static gchar *_gst_info_category_strings[] = {
"GST_INIT",
"COTHREADS",
"COTHREAD_SWITCH",
"AUTOPLUG",
"AUTOPLUG_ATTEMPT",
"PARENTAGE",
"STATES",
"PLANNING",
"SCHEDULING",
"DATAFLOW",
"BUFFER",
"CAPS",
"CLOCK",
"ELEMENT_PADS",
"ELEMENTFACTORY",
"PADS",
"PIPELINE",
"PLUGIN_LOADING",
"PLUGIN_ERRORS",
"PLUGIN_INFO",
"PROPERTIES",
"THREAD",
"TYPES",
"XML",
"NEGOTIATION",
"REFCOUNTING",
"EVENT",
"PARAMS",
[30] = "CALL_TRACE",
};
/**
* gst_get_category_name:
* @category: the category to return the name of
*
* Return a string containing the name of the category
*
* Returns: string containing the name of the category
*/
const gchar *
gst_get_category_name (gint category) {
if ((category >= 0) && (category < GST_CAT_MAX_CATEGORY))
return _gst_info_category_strings[category];
else
return NULL;
}
/*
* Attribute codes:
* 00=none 01=bold 04=underscore 05=blink 07=reverse 08=concealed
* Text color codes:
* 30=black 31=red 32=green 33=yellow 34=blue 35=magenta 36=cyan 37=white
* Background color codes:
* 40=black 41=red 42=green 43=yellow 44=blue 45=magenta 46=cyan 47=white
*/
const gchar *_gst_category_colors[32] = {
[GST_CAT_GST_INIT] = "07;37",
[GST_CAT_COTHREADS] = "00;32",
[GST_CAT_COTHREAD_SWITCH] = "00;37;42",
[GST_CAT_AUTOPLUG] = "00;34",
[GST_CAT_AUTOPLUG_ATTEMPT] = "00;36;44",
[GST_CAT_PARENTAGE] = "01;37;41", // !!
[GST_CAT_STATES] = "00;31",
[GST_CAT_PLANNING] = "07;35",
[GST_CAT_SCHEDULING] = "00;35",
[GST_CAT_DATAFLOW] = "00;32",
[GST_CAT_BUFFER] = "00;32",
[GST_CAT_CAPS] = "04;34",
[GST_CAT_CLOCK] = "00;33", // !!
[GST_CAT_ELEMENT_PADS] = "01;37;41", // !!
[GST_CAT_ELEMENTFACTORY] = "01;37;41", // !!
[GST_CAT_PADS] = "01;37;41", // !!
[GST_CAT_PIPELINE] = "01;37;41", // !!
[GST_CAT_PLUGIN_LOADING] = "00;36",
[GST_CAT_PLUGIN_ERRORS] = "05;31",
[GST_CAT_PLUGIN_INFO] = "00;36",
[GST_CAT_PROPERTIES] = "00;37;44", // !!
[GST_CAT_THREAD] = "00;31",
[GST_CAT_TYPES] = "01;37;41", // !!
[GST_CAT_XML] = "01;37;41", // !!
[GST_CAT_NEGOTIATION] = "07;34",
[GST_CAT_REFCOUNTING] = "00;34:42",
[GST_CAT_EVENT] = "01;37;41", // !!
[GST_CAT_PARAMS] = "00;30;43", // !!
[GST_CAT_CALL_TRACE] = "",
[31] = "05;31",
};
/* colorization hash - DEPRACATED in favor of above */
inline gint _gst_debug_stringhash_color(gchar *file) {
int filecolor = 0;
while (file[0]) filecolor += *(char *)(file++);
filecolor = (filecolor % 6) + 31;
return filecolor;
}
/***** DEBUG system *****/
GstDebugHandler _gst_debug_handler = gst_default_debug_handler;
guint32 _gst_debug_categories = 0x00000000;
/**
* gst_default_debug_handler:
* @category: category of the DEBUG message
* @incore: if the debug handler is for core code.
* @file: the file the DEBUG occurs in
* @function: the function the DEBUG occurs in
* @line: the line number in the file
* @debug_string: the current debug_string in the function, if any
* @element: pointer to the #GstElement in question
* @string: the actual DEBUG string
*
* Prints out the DEBUG mesage in a variant of the following form:
*
* DEBUG(pid:cid):gst_function:542(args): [elementname] something neat happened
*/
void
gst_default_debug_handler (gint category, gboolean incore,
const gchar *file, const gchar *function,
gint line, const gchar *debug_string,
void *element, gchar *string)
__attribute__ ((no_instrument_function));
void
gst_default_debug_handler (gint category, gboolean incore,
const gchar *file, const gchar *function,
gint line, const gchar *debug_string,
void *element, gchar *string)
{
gchar *empty = "";
gchar *elementname = empty,*location = empty;
int pthread_id = getpid();
int cothread_id = cothread_getcurrent();
#ifdef GST_DEBUG_COLOR
int pthread_color = pthread_id%6 + 31;
int cothread_color = (cothread_id < 0) ? 37 : (cothread_id%6 + 31);
#endif
if (debug_string == NULL) debug_string = "";
// if (category != GST_CAT_GST_INIT)
location = g_strdup_printf("%s:%d%s:",function,line,debug_string);
if (element && GST_IS_ELEMENT (element))
#ifdef GST_DEBUG_COLOR
elementname = g_strdup_printf (" \033[04m[%s]\033[00m", GST_OBJECT_NAME (element));
#else
elementname = g_strdup_printf (" [%s]", GST_OBJECT_NAME (element));
#endif
#ifdef GST_DEBUG_COLOR
fprintf(stderr,"DEBUG(\033[00;%dm%5d\033[00m:\033[00;%dm%2d\033[00m)\033["
"%s;%sm%s%s\033[00m %s",
pthread_color,pthread_id,cothread_color,cothread_id,incore?"00":"01",
_gst_category_colors[category],location,elementname,string);
#else
fprintf(stderr,"DEBUG(%5d:%2d)%s%s %s",
pthread_id,cothread_id,location,elementname,string);
#endif /* GST_DEBUG_COLOR */
if (location != empty) g_free(location);
if (elementname != empty) g_free(elementname);
g_free(string);
}
/**
* gst_debug_set_categories:
* @categories: bitmask of DEBUG categories to enable
*
* Enable the output of DEBUG categories based on the given bitmask.
* The bit for any given category is (1 << GST_CAT_...).
*/
void
gst_debug_set_categories (guint32 categories) {
_gst_debug_categories = categories;
if (categories)
GST_INFO (0, "setting DEBUG categories to 0x%08X",categories);
}
/**
* gst_debug_get_categories:
*
* Return the current bitmask of enabled DEBUG categories
*
* Returns: the current bitmask of enabled DEBUG categories
* The bit for any given category is (1 << GST_CAT_...).
*/
guint32
gst_debug_get_categories () {
return _gst_debug_categories;
}
/**
* gst_debug_enable_category:
* @category: the category to enable
*
* Enables the given GST_CAT_... DEBUG category.
*/
void
gst_debug_enable_category (gint category) {
_gst_debug_categories |= (1 << category);
if (_gst_debug_categories)
GST_INFO (0, "setting DEBUG categories to 0x%08X",_gst_debug_categories);
}
/**
* gst_debug_disable_category:
* @category: the category to disable
*
* Disables the given GST_CAT_... DEBUG category.
*/
void
gst_debug_disable_category (gint category) {
_gst_debug_categories &= ~ (1 << category);
if (_gst_debug_categories)
GST_INFO (0, "setting DEBUG categories to 0x%08X",_gst_debug_categories);
}
/***** INFO system *****/
GstInfoHandler _gst_info_handler = gst_default_info_handler;
guint32 _gst_info_categories = 0x00000001;
/**
* gst_default_info_handler:
* @category: category of the INFO message
* @incore: if the info handler is for core code.
* @file: the file the INFO occurs in
* @function: the function the INFO occurs in
* @line: the line number in the file
* @debug_string: the current debug_string in the function, if any
* @element: pointer to the #GstElement in question
* @string: the actual INFO string
*
* Prints out the INFO mesage in a variant of the following form:
*
* INFO:gst_function:542(args): [elementname] something neat happened
*/
void
gst_default_info_handler (gint category, gboolean incore,
const gchar *file, const gchar *function,
gint line, const gchar *debug_string,
void *element, gchar *string)
{
gchar *empty = "";
gchar *elementname = empty,*location = empty;
int pthread_id = getpid();
int cothread_id = cothread_getcurrent();
#ifdef GST_DEBUG_COLOR
int pthread_color = pthread_id%6 + 31;
int cothread_color = (cothread_id < 0) ? 37 : (cothread_id%6 + 31);
#endif
if (debug_string == NULL) debug_string = "";
if (category != GST_CAT_GST_INIT)
location = g_strdup_printf("%s:%d%s:",function,line,debug_string);
if (element && GST_IS_ELEMENT (element))
elementname = g_strdup_printf (" \033[04m[%s]\033[00m", GST_OBJECT_NAME (element));
/*
#ifdef GST_DEBUG_ENABLED
*/
#ifdef GST_DEBUG_COLOR
fprintf(stderr,"\033[01mINFO\033[00m (\033[00;%dm%5d\033[00m:\033[00;%dm%2d\033[00m)\033["
GST_DEBUG_CHAR_MODE ";%sm%s%s\033[00m %s\n",
pthread_color,pthread_id,cothread_color,cothread_id,
_gst_category_colors[category],location,elementname,string);
#else
fprintf(stderr,"INFO (%5d:%2d)%s%s %s\n",
pthread_id,cothread_id,location,elementname,string);
#endif // GST_DEBUG_COLOR
/*
#else
#ifdef GST_DEBUG_COLOR
fprintf(stderr,"\033[01mINFO\033[00m:\033[" GST_DEBUG_CHAR_MODE ";%sm%s%s\033[00m %s\n",
location,elementname,_gst_category_colors[category],string);
#else
fprintf(stderr,"INFO:%s%s %s\n",
location,elementname,string);
#endif // GST_DEBUG_COLOR
#endif
*/
if (location != empty) g_free(location);
if (elementname != empty) g_free(elementname);
g_free(string);
}
/**
* gst_info_set_categories:
* @categories: bitmask of INFO categories to enable
*
* Enable the output of INFO categories based on the given bitmask.
* The bit for any given category is (1 << GST_CAT_...).
*/
void
gst_info_set_categories (guint32 categories) {
_gst_info_categories = categories;
if (categories)
GST_INFO (0, "setting INFO categories to 0x%08X",categories);
}
/**
* gst_info_get_categories:
*
* Return the current bitmask of enabled INFO categories
* The bit for any given category is (1 << GST_CAT_...).
*
* Returns: the current bitmask of enabled INFO categories
* The bit for any given category is (1 << GST_CAT_...).
*/
guint32
gst_info_get_categories () {
return _gst_info_categories;
}
/**
* gst_info_enable_category:
* @category: the category to enable
*
* Enables the given GST_CAT_... INFO category.
*/
void
gst_info_enable_category (gint category) {
_gst_info_categories |= (1 << category);
if (_gst_info_categories)
GST_INFO (0, "setting INFO categories to 0x%08X",_gst_info_categories);
}
/**
* gst_info_disable_category:
* @category: the category to disable
*
* Disables the given GST_CAT_... INFO category.
*/
void
gst_info_disable_category (gint category) {
_gst_info_categories &= ~ (1 << category);
if (_gst_info_categories)
GST_INFO (0, "setting INFO categories to 0x%08X",_gst_info_categories);
}
/***** ERROR system *****/
GstErrorHandler _gst_error_handler = gst_default_error_handler;
/**
* gst_default_error_handler:
* @file: the file the ERROR occurs in
* @function: the function the INFO occurs in
* @line: the line number in the file
* @debug_string: the current debug_string in the function, if any
* @element: pointer to the #GstElement in question
* @object: pointer to a related object
* @string: the actual ERROR string
*
* Prints out the given ERROR string in a variant of the following format:
*
* ***** GStreamer ERROR ***** in file gstsomething.c at gst_function:399(arg)
* Element: /pipeline/thread/element.src
* Error: peer is null!
* ***** attempting to stack trace.... *****
*
* At the end, it attempts to print the stack trace via GDB.
*/
void
gst_default_error_handler (gchar *file, gchar *function,
gint line, gchar *debug_string,
void *element, void *object, gchar *string)
{
int chars = 0;
gchar *path;
int i;
// if there are NULL pointers, point them to null strings to clean up output
if (!debug_string) debug_string = "";
if (!string) string = "";
// print out a preamble
fprintf(stderr,"***** GStreamer ERROR ***** in file %s at %s:%d%s\n",
file,function,line,debug_string);
// if there's an element, print out the pertinent information
if (element) {
if (GST_IS_OBJECT(element)) {
path = gst_object_get_path_string(element);
fprintf(stderr,"Element: %s",path);
chars = 9 + strlen(path);
g_free(path);
} else {
fprintf(stderr,"Element ptr: %p",element);
chars = 15 + sizeof(void*)*2;
}
}
// if there's an object, print it out as well
if (object) {
// attempt to pad the line, or create a new one
if (chars < 40)
for (i=0;i<(40-chars)/8+1;i++) fprintf(stderr,"\t");
else
fprintf(stderr,"\n");
if (GST_IS_OBJECT(object)) {
path = gst_object_get_path_string(object);
fprintf(stderr,"Object: %s",path);
g_free(path);
} else {
fprintf(stderr,"Object ptr: %p",object);
}
}
fprintf(stderr,"\n");
fprintf(stderr,"Error: %s\n",string);
g_free(string);
fprintf(stderr,"***** attempting to stack trace.... *****\n");
g_on_error_stack_trace (_gst_progname);
exit(1);
}
/***** DEBUG system *****/
GHashTable *__gst_function_pointers = NULL;
// FIXME make this thread specific
static GSList* stack_trace = NULL;
gchar *_gst_debug_nameof_funcptr (void *ptr) __attribute__ ((no_instrument_function));
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);
}
return NULL;
}
#ifdef GST_ENABLE_FUNC_INSTRUMENTATION
void __cyg_profile_func_enter(void *this_fn,void *call_site) __attribute__ ((no_instrument_function));
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_DEBUG(GST_CAT_CALL_TRACE, "entering function %s from %s\n", 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) __attribute__ ((no_instrument_function));
void __cyg_profile_func_exit(void *this_fn,void *call_site)
{
gchar *name = _gst_debug_nameof_funcptr (this_fn);
GST_DEBUG(GST_CAT_CALL_TRACE, "leaving function %s\n", 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 */