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vlc_probe.h
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vlc_probe.h
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/*****************************************************************************
* vlc_probe.h: service probing interface
*****************************************************************************
* Copyright (C) 2009 Rémi Denis-Courmont
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef VLC_PROBE_H
# define VLC_PROBE_H 1
# include <stdlib.h>
/**
* \file
* This file defines functions and structures to run-time probe VLC extensions
*/
# ifdef __cplusplus
extern "C" {
# endif
void *vlc_probe (vlc_object_t *, const char *, size_t *);
#define vlc_probe(obj, cap, pcount) \
vlc_probe(VLC_OBJECT(obj), cap, pcount)
struct vlc_probe_t
{
struct vlc_object_t obj;
void *list;
size_t count;
};
typedef struct vlc_probe_t vlc_probe_t;
static inline int vlc_probe_add(vlc_probe_t *obj, const void *data,
size_t len)
{
char *tab = (char *)realloc (obj->list, (obj->count + 1) * len);
if (unlikely(tab == NULL))
return VLC_ENOMEM;
memcpy(tab + (obj->count * len), data, len);
obj->list = tab;
obj->count++;
return VLC_SUCCESS;
}
# define VLC_PROBE_CONTINUE VLC_EGENERIC
# define VLC_PROBE_STOP VLC_SUCCESS
# ifdef __cplusplus
}
# endif
#endif