58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
#include <sys/inotify.h>
|
|
#include <limits.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
|
|
struct dirmonitor {
|
|
int fd;
|
|
};
|
|
|
|
struct dirmonitor* init_dirmonitor_inotify() {
|
|
struct dirmonitor* monitor = calloc(sizeof(struct dirmonitor), 1);
|
|
|
|
monitor->fd = inotify_init();
|
|
fcntl(monitor->fd, F_SETFL, O_NONBLOCK);
|
|
|
|
|
|
return monitor;
|
|
}
|
|
|
|
void deinit_dirmonitor_inotify(struct dirmonitor* monitor) {
|
|
close(monitor->fd);
|
|
free(monitor);
|
|
}
|
|
|
|
int check_dirmonitor_inotify(struct dirmonitor* monitor, int (*change_callback)(int, const char*, void*), void* data) {
|
|
char buf[PATH_MAX + sizeof(struct inotify_event)];
|
|
ssize_t offset = 0;
|
|
|
|
while (1) {
|
|
ssize_t len = read(monitor->fd, &buf[offset], sizeof(buf) - offset);
|
|
|
|
if (len == -1 && errno != EAGAIN) {
|
|
return errno;
|
|
}
|
|
|
|
if (len <= 0) {
|
|
return 0;
|
|
}
|
|
|
|
while (len > sizeof(struct inotify_event) && len >= ((struct inotify_event*)buf)->len + sizeof(struct inotify_event)) {
|
|
change_callback(((const struct inotify_event *)buf)->wd, NULL, data);
|
|
len -= sizeof(struct inotify_event) + ((struct inotify_event*)buf)->len;
|
|
memmove(buf, &buf[sizeof(struct inotify_event) + ((struct inotify_event*)buf)->len], len);
|
|
offset = len;
|
|
}
|
|
}
|
|
}
|
|
|
|
int add_dirmonitor_inotify(struct dirmonitor* monitor, const char* path) {
|
|
return inotify_add_watch(monitor->fd, path, IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO);
|
|
}
|
|
|
|
void remove_dirmonitor_inotify(struct dirmonitor* monitor, int fd) {
|
|
inotify_rm_watch(monitor->fd, fd);
|
|
} |