foreachnum.c
2.55 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2011-2012 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_msgno_action_t action;
void *data;
mu_msgset_t msgset;
int flags;
};
static int
call_action (struct action_closure *clos, size_t i)
{
size_t n;
int cmd;
if (_MU_MSGSET_MODE (clos->msgset->flags) != _MU_MSGSET_MODE (clos->flags))
{
int rc;
switch (_MU_MSGSET_MODE (clos->flags))
{
case MU_MSGSET_NUM:
cmd = MU_MAILBOX_UID_TO_MSGNO;
break;
case MU_MSGSET_UID:
cmd = MU_MAILBOX_MSGNO_TO_UID;
break;
default:
return EINVAL;
}
rc = mu_mailbox_translate (clos->msgset->mbox, cmd, i, &n);
if (rc == MU_ERR_NOENT)
return 0;
if (rc)
return rc;
}
else
n = i;
return clos->action (n, clos->data);
}
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->flags & MU_MSGSET_FOREACH_BACKWARD)
for (i = mp->msg_end; rc == 0 && i >= mp->msg_beg; i--)
rc = call_action (clos, i);
else
for (i = mp->msg_beg; rc == 0 && i <= mp->msg_end; i++)
rc = call_action (clos, i);
return rc;
}
/* Apply ACTION to each message number or UID from MSGSET. */
int
mu_msgset_foreach_num (mu_msgset_t msgset, int flags,
mu_msgset_msgno_action_t action,
void *data)
{
int rc;
struct action_closure clos;
rc = mu_msgset_aggregate (msgset);
if (rc)
return rc;
clos.action = action;
clos.data = data;
clos.flags = flags;
clos.msgset = msgset;
return mu_list_foreach_dir (msgset->list,
!!(flags & MU_MSGSET_FOREACH_BACKWARD),
procrange, &clos);
}