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
|
/*
* Copyright (c) International Business Machines Corp., 2014
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <clib/watch.h>
#include <clib/dispatch.h>
int callback(dispatch_event_t * ev, void * ptr) {
char buf[256];
int rc;
rc = read(ev->fd, buf, sizeof buf);
printf("rc[%d]\n", rc);
printf("fd[%x]\n", ev->fd);
printf("events[%x]\n", ev->events);
return 0;
}
int main(const int argc, const char * argv[]) {
watch_t w;
watch_init(&w);
watch_callback_t wc = {
.data = NULL,
.func = NULL,
};
watch_add(&w, "/dev/mqueue", IN_CREATE | IN_ATTRIB, &wc);
dispatch_t d;
dispatch_init(&d);
dispatch_callback_t dc = {
.data = NULL,
.func = callback,
};
dispatch_add(&d, watch_fileno(&w), EPOLLIN, &dc);
dispatch_wait(&d);
return 0;
}
|