mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 15:43:59 +08:00
35 lines
772 B
C
35 lines
772 B
C
|
#define _GNU_SOURCE /* needed to get the defines */
|
||
|
|
#include <fcntl.h> /* in glibc 2.2 this has the needed
|
||
|
|
values defined */
|
||
|
|
#include <signal.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
static volatile int event_fd;
|
||
|
|
|
||
|
|
static void handler(int sig, siginfo_t *si, void *data)
|
||
|
|
{
|
||
|
|
event_fd = si->si_fd;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(void)
|
||
|
|
{
|
||
|
|
struct sigaction act;
|
||
|
|
int fd;
|
||
|
|
|
||
|
|
act.sa_sigaction = handler;
|
||
|
|
sigemptyset(&act.sa_mask);
|
||
|
|
act.sa_flags = SA_SIGINFO;
|
||
|
|
sigaction(SIGRTMIN + 1, &act, NULL);
|
||
|
|
|
||
|
|
fd = open(".", O_RDONLY);
|
||
|
|
fcntl(fd, F_SETSIG, SIGRTMIN + 1);
|
||
|
|
fcntl(fd, F_NOTIFY, DN_MODIFY|DN_CREATE|DN_MULTISHOT);
|
||
|
|
/* we will now be notified if any of the files
|
||
|
|
in "." is modified or new files are created */
|
||
|
|
while (1) {
|
||
|
|
pause();
|
||
|
|
printf("Got event on fd=%d\n", event_fd);
|
||
|
|
}
|
||
|
|
}
|