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/*
* Copyright (C) 2001-2004 Michael H. Schimek
* Copyright (C) 2000-2003 Iaki Garca Etxebarria
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: callback.h,v 1.2 2005/01/31 07:13:17 mschimek Exp $ */
#ifndef __ZTV_CALLBACK_H__
#define __ZTV_CALLBACK_H__
#include "macros.h"
TV_BEGIN_DECLS
typedef struct _tv_callback tv_callback;
typedef void
tv_callback_fn (void * object,
void * user_data);
extern void
tv_nullify_pointer (void * object,
void * user_data)
__attribute__ ((_tv_nonnull (2)));
extern tv_callback *
tv_callback_add (tv_callback ** list,
tv_callback_fn * notify,
tv_callback_fn * destroy,
void * user_data)
__attribute__ ((_tv_nonnull (1)));
extern void
tv_callback_remove (tv_callback * cb);
extern void
tv_callback_delete (tv_callback * cb,
void * object)
__attribute__ ((_tv_nonnull (2)));
extern void
tv_callback_remove_all (tv_callback * list,
tv_callback_fn * notify,
tv_callback_fn * destroy,
void * user_data);
extern void
tv_callback_delete_all (tv_callback * list,
tv_callback_fn * notify,
tv_callback_fn * destroy,
void * user_data,
void * object);
extern void
tv_callback_block (tv_callback * cb)
__attribute__ ((_tv_nonnull (1)));
extern void
tv_callback_block_all (tv_callback * list,
tv_callback_fn * notify,
tv_callback_fn * destroy,
void * user_data)
__attribute__ ((_tv_nonnull (1)));
extern void
tv_callback_unblock (tv_callback * cb)
__attribute__ ((_tv_nonnull (1)));
extern void
tv_callback_unblock_all (tv_callback * list,
tv_callback_fn * notify,
tv_callback_fn * destroy,
void * user_data)
__attribute__ ((_tv_nonnull (1)));
#define TV_CALLBACK_BLOCK(cb, statement) \
do { \
tv_callback_block (cb); \
statement; \
tv_callback_unblock (cb); \
} while (0)
TV_END_DECLS
#endif /* __ZTV_CALLBACK_H__ */
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