forked from Qortal/Brooklyn
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35 lines
808 B
35 lines
808 B
// SPDX-License-Identifier: GPL-2.0 |
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#define _GNU_SOURCE /* needed to get the defines */ |
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#include <fcntl.h> /* in glibc 2.2 this has the needed |
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values defined */ |
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#include <signal.h> |
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#include <stdio.h> |
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#include <unistd.h> |
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static volatile int event_fd; |
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static void handler(int sig, siginfo_t *si, void *data) |
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{ |
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event_fd = si->si_fd; |
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} |
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int main(void) |
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{ |
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struct sigaction act; |
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int fd; |
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act.sa_sigaction = handler; |
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sigemptyset(&act.sa_mask); |
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act.sa_flags = SA_SIGINFO; |
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sigaction(SIGRTMIN + 1, &act, NULL); |
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fd = open(".", O_RDONLY); |
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fcntl(fd, F_SETSIG, SIGRTMIN + 1); |
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fcntl(fd, F_NOTIFY, DN_MODIFY|DN_CREATE|DN_MULTISHOT); |
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/* we will now be notified if any of the files |
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in "." is modified or new files are created */ |
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while (1) { |
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pause(); |
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printf("Got event on fd=%d\n", event_fd); |
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} |
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}
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