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#include <sys/inotify.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <poll.h>
struct dirmonitor_internal {
int fd;
// a pipe is used to wake the thread in case of exit
int sig[2];
};
struct dirmonitor_internal* init_dirmonitor() {
struct dirmonitor_internal* monitor = calloc(1, sizeof(struct dirmonitor_internal));
monitor->fd = inotify_init();
pipe(monitor->sig);
fcntl(monitor->sig[0], F_SETFD, FD_CLOEXEC);
fcntl(monitor->sig[1], F_SETFD, FD_CLOEXEC);
return monitor;
}
void deinit_dirmonitor(struct dirmonitor_internal* monitor) {
close(monitor->fd);
close(monitor->sig[0]);
close(monitor->sig[1]);
}
int get_changes_dirmonitor(struct dirmonitor_internal* monitor, char* buffer, int length) {
struct pollfd fds[2] = { { .fd = monitor->fd, .events = POLLIN | POLLERR, .revents = 0 }, { .fd = monitor->sig[0], .events = POLLIN | POLLERR, .revents = 0 } };
poll(fds, 2, -1);
return read(monitor->fd, buffer, length);
}
int translate_changes_dirmonitor(struct dirmonitor_internal* monitor, char* buffer, int length, int (*change_callback)(int, const char*, void*), void* data) {
for (struct inotify_event* info = (struct inotify_event*)buffer; (char*)info < buffer + length; info = (struct inotify_event*)((char*)info + sizeof(struct inotify_event)))
change_callback(info->wd, NULL, data);
return 0;
}
int add_dirmonitor(struct dirmonitor_internal* monitor, const char* path) {
return inotify_add_watch(monitor->fd, path, IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MODIFY | IN_MOVED_TO);
}
void remove_dirmonitor(struct dirmonitor_internal* monitor, int fd) {
inotify_rm_watch(monitor->fd, fd);
}
int get_mode_dirmonitor() { return 2; }
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