Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/lib/ioloop.h @ 1729:5bf22d6bb65e HEAD

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Added IO_DIR_NOTIFY and IO_FILE_NOTIFY conditions to io_add(). IO_DIR_NOTIFY is now implemented for Linux dnotify.
author Timo Sirainen <tss@iki.fi>
date Sun, 24 Aug 2003 15:43:53 +0300
parents e850252cdc7e
children a9be1824403b
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1 #ifndef __IOLOOP_H
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2 #define __IOLOOP_H
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3
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4 #include <sys/time.h>
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5 #include <time.h>
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6
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7 struct io;
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8 struct timeout;
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9 struct ioloop;
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10
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11 enum io_condition {
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12 IO_READ = 0x01,
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13 IO_WRITE = 0x02,
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14 IO_DIR_NOTIFY = 0x04,
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15 IO_FILE_NOTIFY = 0x08,
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17 IO_NOTIFY_MASK = IO_DIR_NOTIFY | IO_FILE_NOTIFY
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18 };
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19
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f782b3319553 Removed useless parameters from io_callback_t and timeout_callback_t.
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20 typedef void io_callback_t(void *context);
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21 typedef void timeout_callback_t(void *context);
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23 /* Time when the I/O loop started calling handlers.
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24 Can be used instead of time(NULL). */
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25 extern time_t ioloop_time;
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26 extern struct timeval ioloop_timeval;
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27 extern struct timezone ioloop_timezone;
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29 /* I/O listeners - you can create different handlers for IO_READ and IO_WRITE,
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30 but make sure you don't create multiple handlers of same type, it's not
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31 checked and removing one will stop the other from working as well.
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33 If IO_DIR_NOTIFY or IO_FILE_NOTIFY isn't supported by operating system
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34 directly, this function returns NULL. */
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35 struct io *io_add(int fd, enum io_condition condition,
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36 io_callback_t *callback, void *context);
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37 void io_remove(struct io *io);
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38
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39 /* Timeout handlers */
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40 struct timeout *timeout_add(unsigned int msecs, timeout_callback_t *callback,
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41 void *context);
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42 void timeout_remove(struct timeout *timeout);
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43
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44 void io_loop_run(struct ioloop *ioloop);
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45 void io_loop_stop(struct ioloop *ioloop); /* safe to run in signal handler */
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46
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47 int io_loop_is_running(struct ioloop *ioloop);
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48
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49 /* call these if you wish to run the iteration only once */
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50 void io_loop_set_running(struct ioloop *ioloop);
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51 void io_loop_handler_run(struct ioloop *ioloop);
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53 struct ioloop *io_loop_create(pool_t pool);
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54 void io_loop_destroy(struct ioloop *ioloop);
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55
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56 #endif