Commit | Line | Data |
---|---|---|
1e0051ae RD |
1 | #define _GNU_SOURCE /* needed to get the defines */ |
2 | #include <fcntl.h> /* in glibc 2.2 this has the needed | |
3 | values defined */ | |
4 | #include <signal.h> | |
5 | #include <stdio.h> | |
6 | #include <unistd.h> | |
7 | ||
8 | static volatile int event_fd; | |
9 | ||
10 | static void handler(int sig, siginfo_t *si, void *data) | |
11 | { | |
12 | event_fd = si->si_fd; | |
13 | } | |
14 | ||
15 | int main(void) | |
16 | { | |
17 | struct sigaction act; | |
18 | int fd; | |
19 | ||
20 | act.sa_sigaction = handler; | |
21 | sigemptyset(&act.sa_mask); | |
22 | act.sa_flags = SA_SIGINFO; | |
23 | sigaction(SIGRTMIN + 1, &act, NULL); | |
24 | ||
25 | fd = open(".", O_RDONLY); | |
26 | fcntl(fd, F_SETSIG, SIGRTMIN + 1); | |
27 | fcntl(fd, F_NOTIFY, DN_MODIFY|DN_CREATE|DN_MULTISHOT); | |
28 | /* we will now be notified if any of the files | |
29 | in "." is modified or new files are created */ | |
30 | while (1) { | |
31 | pause(); | |
32 | printf("Got event on fd=%d\n", event_fd); | |
33 | } | |
34 | } |