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gstreamer/gst/gstinfo.h
Erik Walthinsen e6a59c8a62 Merged HEAD from BRANCH-INCSCHED1-200104161 into BRANCH-INCSCHED1. 
Original commit message from CVS:
Merged HEAD from BRANCH-INCSCHED1-200104161 into BRANCH-INCSCHED1.
2001-04-16 21:43:28 +00:00

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstinfo.h:
*
* 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.
*/
#ifndef __GSTINFO_H__
#define __GSTINFO_H__
#include <stdio.h>
#include <gmodule.h>
#include <unistd.h>
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "cothreads.h"
/**********************************************************************
* DEBUG system
**********************************************************************/
extern guint32 _gst_debug_categories;
/* for include files that make too much noise normally */
#ifdef GST_DEBUG_FORCE_DISABLE
#undef GST_DEBUG_ENABLED
#endif
/* for applications that really really want all the noise */
#ifdef GST_DEBUG_FORCE_ENABLE
#define GST_DEBUG_ENABLED
#endif
//#ifdef GST_DEBUG_ENABLED
#define GST_DEBUG_ENABLE_CATEGORIES 0xffffffff
//#else
//#define GST_DEBUG_ENABLE_CATEGORIES 0x00000000
//#endif
/* fallback, this should probably be a 'weak' symbol or something */
G_GNUC_UNUSED static gchar *_debug_string = NULL;
#define GST_DEBUG_PREFIX(format,args...) \
"DEBUG(%d:%d)" __PRETTY_FUNCTION__ ":%d" format , getpid() , cothread_getcurrent() , __LINE__ , ## args
#ifdef GST_DEBUG_ENABLED
#define GST_DEBUG(cat,format,args...) G_STMT_START{ \
if (((1<<cat) & GST_DEBUG_ENABLE_CATEGORIES) && \
((1<<cat) & _gst_debug_categories)) \
(_debug_string != NULL) ? \
fprintf(stderr,GST_DEBUG_PREFIX("%s: "format , _debug_string , ## args )) : \
fprintf(stderr,GST_DEBUG_PREFIX(": "format , ## args )); \
}G_STMT_END
#define GST_DEBUG_NOPREFIX(cat,format,args...) G_STMT_START{ \
if (((1<<cat) & GST_DEBUG_ENABLE_CATEGORIES) && \
((1<<cat) & _gst_debug_categories)) \
fprintf(stderr,format , ## args ); \
}G_STMT_END
#define GST_DEBUG_ENTER(format, args...) G_STMT_START{ \
if (((1<<31) & GST_DEBUG_ENABLE_CATEGORIES) && \
((1<<31) & _gst_debug_categories)) \
fprintf(stderr,GST_DEBUG_PREFIX(format": entering\n" , ## args )); \
}G_STMT_END
// FIXME FIXME FIXME this leaks like crazy
#define GST_DEBUG_SET_STRING(format, args...) \
gchar *_debug_string = g_strdup_printf(format , ## args )
#define GST_DEBUG_ENTER_STRING GST_DEBUG_ENTER("%s",_debug_string)
#define GST_DEBUG_LEAVE(format, args...) G_STMT_START{ \
if (((1<<31) & GST_DEBUG_ENABLE_CATEGORIES) && \
((1<<31) & _gst_debug_categories)) \
if (_debug_string != NULL) g_free(_debug_string),\
fprintf(stderr,GST_DEBUG_PREFIX(format": leaving\n" , ## args )); \
}G_STMT_END
#define GST_DEBUG_LEAVE_STRING GST_DEBUG_LEAVE("%s",_debug_string)
#else
#define GST_DEBUG(format, args...)
#define GST_DEBUG_NOPREFIX(format, args...)
#define GST_DEBUG_ENTER(format, args...)
#define GST_DEBUG_LEAVE(format, args...)
#define GST_DEBUG_SET_STRING(format, args...)
#define GST_DEBUG_ENTER_STRING
#endif
/********** some convenience macros for debugging **********/
#define GST_DEBUG_PAD_NAME(pad) \
(GST_OBJECT_PARENT(pad) != NULL) ? \
GST_OBJECT_NAME (GST_OBJECT_PARENT(pad)) : \
"''", GST_OBJECT_NAME (pad)
/********** function pointer stuff **********/
extern GHashTable *__gst_function_pointers;
#ifdef GST_DEBUG_ENABLED
#define GST_DEBUG_FUNCPTR(ptr) _gst_debug_register_funcptr((void *)(ptr), #ptr)
#define GST_DEBUG_FUNCPTR_NAME(ptr) _gst_debug_nameof_funcptr((void *)ptr)
#else
#define GST_DEBUG_FUNCPTR(ptr) (ptr)
#define GST_DEBUG_FUNCPTR_NAME(ptr) ""
#endif
static inline 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;
}
static inline gchar *
_gst_debug_nameof_funcptr (void *ptr)
{
gchar *ptrname = (gchar*)( __gst_function_pointers ? g_hash_table_lookup(__gst_function_pointers,ptr) : NULL );
// FIXME this must go away, it's a major leak
if (!ptrname) return g_strdup_printf("%p",ptr);
else return ptrname;
}
/**********************************************************************
* The following is a DEBUG_ENTER implementation that will wrap the
* function it sits at the head of. It removes the need for a
* DEBUG_LEAVE call. However, it segfaults whenever it gets anywhere
* near cothreads. We will not use it for the moment.
*
typedef void (*_debug_function_f)();
G_GNUC_UNUSED static gchar *_debug_string_pointer = NULL;
G_GNUC_UNUSED static GModule *_debug_self_module = NULL;
#define _DEBUG_ENTER_BUILTIN(format,args...) \
static int _debug_in_wrapper = 0; \
gchar *_debug_string = ({ \
if (!_debug_in_wrapper) { \
void *_return_value; \
gchar *_debug_string; \
_debug_function_f function; \
void *_function_args = __builtin_apply_args(); \
_debug_in_wrapper = 1; \
_debug_string = g_strdup_printf(GST_DEBUG_PREFIX("")); \
_debug_string_pointer = _debug_string; \
fprintf(stderr,"%s: entered " __PRETTY_FUNCTION__ format "\n" , _debug_string , ## args ); \
if (_debug_self_module == NULL) _debug_self_module = g_module_open(NULL,0); \
g_module_symbol(_debug_self_module,__FUNCTION__,(gpointer *)&function); \
_return_value = __builtin_apply(function,_function_args,64); \
fprintf(stderr,"%s: left " __PRETTY_FUNCTION__ format "\n" , _debug_string , ## args ); \
g_free(_debug_string); \
__builtin_return(_return_value); \
} else { \
_debug_in_wrapper = 0; \
} \
_debug_string_pointer; \
});
* WARNING: there's a gcc CPP bug lurking in here. The extra space before the ##args *
* somehow make the preprocessor leave the _debug_string. If it's removed, the *
* _debug_string somehow gets stripped along with the ##args, and that's all she wrote. *
#define _DEBUG_BUILTIN(format,args...) \
if (_debug_string != (void *)-1) { \
if (_debug_string) \
fprintf(stderr,"%s: " format , _debug_string , ## args); \
else \
fprintf(stderr,GST_DEBUG_PREFIX(": " format , ## args)); \
}
*/
/**********************************************************************
* INFO system
**********************************************************************/
typedef void (*GstInfoHandler) (gint category,gchar *file,gchar *function,
gint line,gchar *debug_string,
void *element,gchar *string);
void gst_default_info_handler (gint category,gchar *file,gchar *function,
gint line,gchar *debug_string,
void *element,gchar *string);
extern GstInfoHandler _gst_info_handler;
extern guint32 _gst_info_categories;
/* for include files that make too much noise normally */
#ifdef GST_INFO_FORCE_DISABLE
#undef GST_INFO_ENABLED
#endif
/* for applications that really really want all the noise */
#ifdef GST_INFO_FORCE_ENABLE
#define GST_INFO_ENABLED
#endif
#ifdef GST_INFO_ENABLED
#define GST_INFO(cat,format,args...) G_STMT_START{ \
if ((1<<cat) & _gst_info_categories) \
_gst_info_handler(cat,__FILE__,__PRETTY_FUNCTION__,__LINE__,_debug_string, \
NULL,g_strdup_printf( format , ## args )); \
}G_STMT_END
#define GST_INFO_ELEMENT(cat,element,format,args...) G_STMT_START{ \
if ((1<<cat) & _gst_info_categories) \
_gst_info_handler(cat,__FILE__,__PRETTY_FUNCTION__,__LINE__,_debug_string, \
element,g_strdup_printf( format , ## args )); \
}G_STMT_END
#else
#define GST_INFO(cat,format,args...)
#define GST_INFO_ELEMENT(cat,element,format,args...)
#endif
void gst_info_set_categories (guint32 categories);
guint32 gst_info_get_categories (void);
void gst_info_enable_category (gint category);
void gst_info_disable_category (gint category);
void gst_debug_set_categories (guint32 categories);
guint32 gst_debug_get_categories (void);
void gst_debug_enable_category (gint category);
void gst_debug_disable_category (gint category);
const gchar * gst_get_category_name (gint category);
enum {
GST_CAT_GST_INIT = 0, // Library initialization
GST_CAT_COTHREADS, // Cothread creation, etc.
GST_CAT_COTHREAD_SWITCH, // Cothread switching
GST_CAT_AUTOPLUG, // Successful autoplug results
GST_CAT_AUTOPLUG_ATTEMPT, // Attempted autoplug operations
GST_CAT_PARENTAGE, // GstBin parentage issues
GST_CAT_STATES, // State changes and such
GST_CAT_PLANNING, // Plan generation
GST_CAT_SCHEDULING, // Schedule construction
GST_CAT_DATAFLOW, // Events during actual data movement
GST_CAT_BUFFER, // Buffer creation/destruction
GST_CAT_CAPS, // Capabilities matching
GST_CAT_CLOCK, // Clocking
GST_CAT_ELEMENT_PADS, // Element pad management
GST_CAT_ELEMENTFACTORY, // Elementfactory stuff
GST_CAT_PADS, // Pad creation/connection
GST_CAT_PIPELINE, // Pipeline stuff
GST_CAT_PLUGIN_LOADING, // Plugin loading
GST_CAT_PLUGIN_ERRORS, // Errors during plugin loading
GST_CAT_PLUGIN_INFO, // Plugin state information
GST_CAT_PROPERTIES, // Properties
GST_CAT_THREAD, // Thread creation/management
GST_CAT_TYPES, // Typing
GST_CAT_XML, // XML load/save of everything
GST_CAT_NEGOTIATION, // Caps Negotiation stuff
GST_CAT_MAX_CATEGORY,
};
/**********************************************************************
* ERROR system
**********************************************************************/
typedef void (*GstErrorHandler) (gchar *file,gchar *function,
gint line,gchar *debug_string,
void *element,void *object,gchar *string);
void gst_default_error_handler (gchar *file,gchar *function,
gint line,gchar *debug_string,
void *element,void *object,gchar *string);
extern GstErrorHandler _gst_error_handler;
#define GST_ERROR(element,format,args...) \
_gst_error_handler(__FILE__,__PRETTY_FUNCTION__,__LINE__,_debug_string, \
element,NULL,g_strdup_printf( format , ## args ))
#define GST_ERROR_OBJECT(element,object,format,args...) \
_gst_error_handler(__FILE__,__PRETTY_FUNCTION__,__LINE__,_debug_string, \
element,object,g_strdup_printf( format , ## args ))
#endif /* __GSTINFO_H__ */
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