Mercurial > dovecot > core-2.2

annotate src/lib/ioloop-iolist.c @ 22656:1789bf2a1e01

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director: Make sure HOST-RESET-USERS isn't used with max_moving_users=0 The reset command would just hang in that case. doveadm would never have sent this, so this is just an extra sanity check.
author Timo Sirainen <timo.sirainen@dovecot.fi>
date Sun, 05 Nov 2017 23:51:56 +0200
parents cf77e448295c
children
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1 /*
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2 * Copyright (c) 2004 Andrey Panin <pazke@donpac.ru>
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3 *
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4 * This software is released under the MIT license.
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5 */
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6
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7 #include "lib.h"
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8 #include "ioloop-private.h"
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9 #include "ioloop-iolist.h"
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10
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11 bool ioloop_iolist_add(struct io_list *list, struct io_file *io)
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12 {
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13 int i, idx;
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14
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15 if ((io->io.condition & IO_READ) != 0)
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16 idx = IOLOOP_IOLIST_INPUT;
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17 else if ((io->io.condition & IO_WRITE) != 0)
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18 idx = IOLOOP_IOLIST_OUTPUT;
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19 else if ((io->io.condition & IO_ERROR) != 0)
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20 idx = IOLOOP_IOLIST_ERROR;
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21 else {
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22 i_unreached();
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23 }
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24
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25 if (list->ios[idx] != NULL) {
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26 i_panic("io_add(0x%x) called twice fd=%d, callback=%p -> %p",
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27 io->io.condition, io->fd, list->ios[idx]->io.callback,
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28 io->io.callback);
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29 }
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30 i_assert(list->ios[idx] == NULL);
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31 list->ios[idx] = io;
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32
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33 /* check if this was the first one */
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34 for (i = 0; i < IOLOOP_IOLIST_IOS_PER_FD; i++) {
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35 if (i != idx && list->ios[i] != NULL)
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36 return FALSE;
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37 }
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38
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39 return TRUE;
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40 }
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41
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42 bool ioloop_iolist_del(struct io_list *list, struct io_file *io)
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43 {
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44 bool last = TRUE;
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45 int i;
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46
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47 for (i = 0; i < IOLOOP_IOLIST_IOS_PER_FD; i++) {
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48 if (list->ios[i] != NULL) {
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49 if (list->ios[i] == io)
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50 list->ios[i] = NULL;
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51 else
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52 last = FALSE;
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53 }
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54 }
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55 return last;
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56 }