foreachmsg.c
2.63 KB
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2011-2012, 2014-2016 Free Software Foundation, Inc.
GNU Mailutils 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 3, 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Mailutils. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <stdlib.h>
#include <mailutils/types.h>
#include <mailutils/errno.h>
#include <mailutils/list.h>
#include <mailutils/msgset.h>
#include <mailutils/mailbox.h>
#include <mailutils/sys/msgset.h>
struct action_closure
{
mu_msgset_message_action_t action;
void *data;
mu_msgset_t msgset;
int dir;
};
static int
call_action (struct action_closure *clos, size_t i)
{
int rc;
mu_message_t msg = NULL;
size_t n;
if (_MU_MSGSET_MODE (clos->msgset->flags) == MU_MSGSET_UID)
{
rc = mu_mailbox_translate (clos->msgset->mbox, MU_MAILBOX_UID_TO_MSGNO,
i, &n);
if (rc == MU_ERR_NOENT)
return 0;
else if (rc)
return rc;
}
else
n = i;
rc = mu_mailbox_get_message (clos->msgset->mbox, n, &msg);
if (rc == MU_ERR_NOENT)
return 0;
else if (rc == 0)
rc = clos->action (i, msg, clos->data);
return rc;
}
static int
procrange (void *item, void *data)
{
struct mu_msgrange *mp = item;
struct action_closure *clos = data;
size_t i;
int rc = 0;
if (clos->dir)
for (i = mp->msg_end; rc == 0 && i >= mp->msg_beg; i--)
rc = call_action (clos, i);
else
for (i = mp->msg_beg; i <= mp->msg_end; i++)
rc = call_action (clos, i);
return rc;
}
/* Apply ACTION to each message number from MSGSET. */
int
mu_msgset_foreach_dir_message (mu_msgset_t msgset, int dir,
mu_msgset_message_action_t action,
void *data)
{
int rc;
struct action_closure clos;
if (!msgset->mbox)
return MU_ERR_NOT_OPEN;
rc = mu_msgset_aggregate (msgset);
if (rc)
return rc;
clos.action = action;
clos.data = data;
clos.msgset = msgset;
clos.dir = dir;
return mu_list_foreach_dir (msgset->list, dir, procrange, &clos);
}
int
mu_msgset_foreach_message (mu_msgset_t msgset,
mu_msgset_message_action_t action,
void *data)
{
return mu_msgset_foreach_dir_message (msgset, 0, action, data);
}