message.h
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000 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 _MESSAGE_H
#define _MESSAGE_H
#include <header.h>
#include <attribute.h>
#include <io.h>
#include <sys/types.h>
#ifndef __P
# ifdef __STDC__
# define __P(args) args
# else
# define __P(args) ()
# endif
#endif /* __P */
#ifdef _cpluscplus
extern "C" {
#endif
/* forward declaration */
struct _message;
typedef struct _message *message_t;
/* A message is considered to be a container for:
* header_t, body_t, and its attribute_t.
* The notion of body_t is not visible/exported, since
* they are alway tied to a floating message, there was no
* need to create yet another object, getting the {i,o}stream_t
* was enough.
*/
extern int message_init __P ((message_t *, void *owner));
extern void message_destroy __P ((message_t *, void *owner));
extern int message_get_header __P ((message_t, header_t *));
extern int message_set_header __P ((message_t, header_t, void *owner));
extern int message_get_istream __P ((message_t, istream_t *));
extern int message_set_istream __P ((message_t, istream_t, void *owner));
extern int message_get_ostream __P ((message_t, ostream_t *));
extern int message_set_ostream __P ((message_t, ostream_t, void *owner));
extern int message_is_multipart __P ((message_t));
extern int message_get_size __P ((message_t, size_t *));
extern int message_set_size __P ((message_t, size_t, void *owner));
extern int message_get_attribute __P ((message_t, attribute_t *));
extern int message_set_attribute __P ((message_t, attribute_t, void *owner));
extern int message_clone __P ((message_t));
/* events */
#define MU_EVT_MSG_DESTROY 32
extern int message_register __P ((message_t msg, size_t type,
int (*action) (size_t typ, void *arg),
void *arg));
extern int message_deregister __P ((message_t msg, void *action));
#ifdef _cpluscplus
}
#endif
#endif /* _MESSAGE_H */