observable.h
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef _MAILUTILS_OBSERVABLE_H
#define _MAILUTILS_OBSERVABLE_H
#include <sys/types.h>
#include <mailutils/observer.h>
#ifndef __P
#ifdef __STDC__
#define __P(args) args
#else
#define __P(args) ()
#endif
#endif /*__P */
#ifdef __cplusplus
extern "C" {
#endif
struct _observable;
typedef struct _observable *observable_t;
extern int observable_create __P ((observable_t *));
extern int observable_release __P ((observable_t));
extern int observable_destroy __P ((observable_t));
extern int observable_attach __P ((observable_t, int, observer_t));
extern int observable_detach __P ((observable_t, observer_t));
extern int observable_notify_all __P ((observable_t, struct event));
#ifdef __cplusplus
}
#endif
#endif /* _MAILUTILS_OBSERVABLE_H */