amd.h
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001, 2002, 2003,
2004 Free Software Foundation, Inc.
This library 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 of the License, or (at your option) any later version.
This library 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 library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#define MAX_OPEN_STREAMS 16
/* Notifications ADD_MESG. */
#define DISPATCH_ADD_MSG(mbox,mhd) \
do \
{ \
int bailing = 0; \
monitor_unlock (mbox->monitor); \
if (mbox->observable) \
bailing = observable_notify (mbox->observable, MU_EVT_MESSAGE_ADD); \
if (bailing != 0) \
{ \
if (pcount) \
*pcount = (mhd)->msg_count; \
locker_unlock (mbox->locker); \
return EINTR; \
} \
monitor_wrlock (mbox->monitor); \
} while (0);
struct _amd_data;
struct _amd_message
{
struct _amd_message *next;
struct _amd_message *prev;
stream_t stream; /* Associated file stream */
off_t body_start; /* Offset of body start in the message file */
off_t body_end; /* Offset of body end (size of file, effectively)*/
int attr_flags; /* Attribute flags */
int deleted; /* Was the message originally deleted */
time_t mtime; /* Time of last modification */
size_t header_lines; /* Number of lines in the header part */
size_t body_lines; /* Number of lines in the body */
message_t message; /* Corresponding message_t */
struct _amd_data *amd; /* Back pointer. */
};
struct _amd_data
{
size_t msg_size; /* Size of struct _amd_message */
int (*msg_init_delivery) (struct _amd_data *, struct _amd_message *);
int (*msg_finish_delivery) (struct _amd_data *, struct _amd_message *);
void (*msg_free) (struct _amd_message *);
char *(*msg_file_name) (struct _amd_message *, int deleted);
int (*scan0) (mailbox_t mailbox, size_t msgno, size_t *pcount,
int do_notify);
int (*msg_cmp) (struct _amd_message *, struct _amd_message *);
int (*message_uid) (message_t msg, size_t *puid);
size_t (*next_uid) (struct _amd_data *mhd);
/* List of messages: */
size_t msg_count; /* number of messages in the list */
struct _amd_message *msg_head; /* First */
struct _amd_message *msg_tail; /* Last */
unsigned long uidvalidity;
char *name; /* Directory name */
/* Pool of open message streams */
struct _amd_message *msg_pool[MAX_OPEN_STREAMS];
int pool_first; /* Index to the first used entry in msg_pool */
int pool_last; /* Index to the first free entry in msg_pool */
time_t mtime; /* Time of last modification */
mailbox_t mailbox; /* Back pointer. */
};
int amd_init_mailbox __P((mailbox_t mailbox, size_t mhd_size,
struct _amd_data **pmhd));
void _amd_message_insert __P((struct _amd_data *mhd,
struct _amd_message *msg));
int amd_message_stream_open __P((struct _amd_message *mhm));
void amd_message_stream_close __P((struct _amd_message *mhm));
void amd_cleanup (void *arg);