/src/dovecot/src/lib/ioloop-iolist.c
Line | Count | Source |
1 | | /* |
2 | | * Copyright (c) 2004 Andrey Panin <pazke@donpac.ru> |
3 | | * |
4 | | * This software is released under the MIT license. |
5 | | */ |
6 | | |
7 | | #include "lib.h" |
8 | | #include "ioloop-private.h" |
9 | | #include "ioloop-iolist.h" |
10 | | |
11 | | bool ioloop_iolist_add(struct io_list *list, struct io_file *io) |
12 | 0 | { |
13 | 0 | int i, idx; |
14 | |
|
15 | 0 | if ((io->io.condition & IO_READ) != 0) |
16 | 0 | idx = IOLOOP_IOLIST_INPUT; |
17 | 0 | else if ((io->io.condition & IO_WRITE) != 0) |
18 | 0 | idx = IOLOOP_IOLIST_OUTPUT; |
19 | 0 | else if ((io->io.condition & IO_ERROR) != 0) |
20 | 0 | idx = IOLOOP_IOLIST_ERROR; |
21 | 0 | else { |
22 | 0 | i_unreached(); |
23 | 0 | } |
24 | | |
25 | 0 | if (list->ios[idx] != NULL) { |
26 | 0 | i_panic("io_add(0x%x) called twice fd=%d, callback=%p -> %p", |
27 | 0 | io->io.condition, io->fd, list->ios[idx]->io.callback, |
28 | 0 | io->io.callback); |
29 | 0 | } |
30 | 0 | i_assert(list->ios[idx] == NULL); |
31 | 0 | list->ios[idx] = io; |
32 | | |
33 | | /* check if this was the first one */ |
34 | 0 | for (i = 0; i < IOLOOP_IOLIST_IOS_PER_FD; i++) { |
35 | 0 | if (i != idx && list->ios[i] != NULL) |
36 | 0 | return FALSE; |
37 | 0 | } |
38 | | |
39 | 0 | return TRUE; |
40 | 0 | } |
41 | | |
42 | | bool ioloop_iolist_del(struct io_list *list, struct io_file *io) |
43 | 0 | { |
44 | 0 | bool last = TRUE; |
45 | 0 | int i; |
46 | |
|
47 | 0 | for (i = 0; i < IOLOOP_IOLIST_IOS_PER_FD; i++) { |
48 | 0 | if (list->ios[i] != NULL) { |
49 | 0 | if (list->ios[i] == io) |
50 | 0 | list->ios[i] = NULL; |
51 | 0 | else |
52 | 0 | last = FALSE; |
53 | 0 | } |
54 | 0 | } |
55 | 0 | return last; |
56 | 0 | } |