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Documentation is licensed under LGPL-2.1-or-later. Scripts are MIT to facilitate reuse. Examples are relicensed to CC0-1.0 to maximise copy-and-paste for users, with permission from authors.
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/* SPDX-License-Identifier: CC0-1.0 */
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#include <stdio.h>
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#include <string.h>
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#include <sys/inotify.h>
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#include <systemd/sd-event.h>
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#define _cleanup_(f) __attribute__((cleanup(f)))
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static int inotify_handler(sd_event_source *source,
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const struct inotify_event *event,
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void *userdata) {
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const char *desc = NULL;
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sd_event_source_get_description(source, &desc);
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if (event->mask & IN_Q_OVERFLOW)
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printf("inotify-handler <%s>: overflow\n", desc);
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else if (event->mask & IN_CREATE)
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printf("inotify-handler <%s>: create on %s\n", desc, event->name);
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else if (event->mask & IN_DELETE)
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printf("inotify-handler <%s>: delete on %s\n", desc, event->name);
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else if (event->mask & IN_MOVED_TO)
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printf("inotify-handler <%s>: moved-to on %s\n", desc, event->name);
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/* Terminate the program if an "exit" file appears */
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if ((event->mask & (IN_CREATE|IN_MOVED_TO)) &&
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strcmp(event->name, "exit") == 0)
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sd_event_exit(sd_event_source_get_event(source), 0);
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return 1;
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}
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int main(int argc, char **argv) {
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_cleanup_(sd_event_unrefp) sd_event *event = NULL;
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_cleanup_(sd_event_source_unrefp) sd_event_source *source1 = NULL, *source2 = NULL;
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const char *path1 = argc > 1 ? argv[1] : "/tmp";
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const char *path2 = argc > 2 ? argv[2] : NULL;
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/* Note: failure handling is omitted for brevity */
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sd_event_default(&event);
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sd_event_add_inotify(event, &source1, path1,
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IN_CREATE | IN_DELETE | IN_MODIFY | IN_MOVED_TO,
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inotify_handler, NULL);
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if (path2)
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sd_event_add_inotify(event, &source2, path2,
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IN_CREATE | IN_DELETE | IN_MODIFY | IN_MOVED_TO,
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inotify_handler, NULL);
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sd_event_loop(event);
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return 0;
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}
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