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/* GNU Mailutils -- a suite of utilities for electronic mail
   Copyright (C) 1999, 2000 Free Software Foundation, Inc.

   GNU Mailutils 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.

   GNU Mailutils 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 GNU Mailutils; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#ifndef _OBSERVER0_H
#define _OBSERVER0_H

#ifdef DMALLOC
#  include <dmalloc.h>
#endif

#include <mailutils/observer.h>

#ifdef __cplusplus
extern "C" {
#endif

struct _observer
{
  int flags;
  void *owner;
  int (*_action)  __P ((observer_t, size_t));
  int (*_destroy) __P ((observer_t));
};

struct _observable
{
  void *owner;
  list_t list;
};

struct _event
{
  size_t type;
  observer_t observer;
};

typedef struct _event *event_t;



#ifdef __cplusplus
}
#endif

#endif /* _OBSERVER0_H */

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