54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
#include <sys/inotify.h>
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#include <sys/select.h>
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#include <stdlib.h>
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#include <unistd.h>
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struct dirmonitor_internal {
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int fd;
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// a pipe is used to wake the thread in case of exit
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int sig[2];
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};
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struct dirmonitor_internal* init_dirmonitor() {
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struct dirmonitor_internal* monitor = calloc(sizeof(struct dirmonitor_internal), 1);
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monitor->fd = inotify_init();
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pipe(monitor->sig);
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return monitor;
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}
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void deinit_dirmonitor(struct dirmonitor_internal* monitor) {
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close(monitor->sig[0]);
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close(monitor->sig[1]);
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close(monitor->fd);
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}
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int get_changes_dirmonitor(struct dirmonitor_internal* monitor, char* buffer, int length) {
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fd_set set;
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FD_ZERO(&set);
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FD_SET(monitor->fd, &set);
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FD_SET(monitor->sig[0], &set);
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select(FD_SETSIZE, &set, NULL, NULL, NULL);
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return read(monitor->fd, buffer, length);
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}
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int translate_changes_dirmonitor(struct dirmonitor_internal* monitor, char* buffer, int length, int (*change_callback)(int, const char*, void*), void* data) {
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for (struct inotify_event* info = (struct inotify_event*)buffer; (char*)info < buffer + length; info = (struct inotify_event*)((char*)info + sizeof(struct inotify_event)))
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change_callback(info->wd, NULL, data);
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return 0;
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}
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int add_dirmonitor(struct dirmonitor_internal* monitor, const char* path) {
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return inotify_add_watch(monitor->fd, path, IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO);
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}
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void remove_dirmonitor(struct dirmonitor_internal* monitor, int fd) {
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inotify_rm_watch(monitor->fd, fd);
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}
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