/**
* Detect and notify about the changes in the watched directory.
*
* This function is top-level and it operates with other specific routines
* to notify about different sets of events in a different conditions.
*
* @param[in] wrk A pointer to #worker.
* @param[in] w A pointer to #watch.
* @param[in] event A pointer to the received kqueue event.
**/
void
produce_directory_diff (worker *wrk, watch *w, struct kevent *event)
{
assert (wrk != NULL);
assert (w != NULL);
assert (event != NULL);
assert (w->type == WATCH_USER);
assert (w->is_directory);
dep_list *was = NULL, *now = NULL;
was = dl_shallow_copy (w->deps);
now = dl_listing (w->filename);
if (now == NULL && errno != ENOENT) {
/* Why do I skip ENOENT? Because the directory could be deleted at this
* point */
perror_msg ("Failed to create a listing for directory %s",
w->filename);
dl_shallow_free (was);
return;
}
dl_shallow_free (w->deps);
w->deps = now;
bulk_events be;
memset (&be, 0, sizeof (be));
handle_context ctx;
memset (&ctx, 0, sizeof (ctx));
ctx.wrk = wrk;
ctx.w = w;
ctx.be = &be;
dl_calculate (was, now, &cbs, &ctx);
if (be.memory) {
safe_write (wrk->io[KQUEUE_FD], be.memory, be.size);
free (be.memory);
}
dl_free (was);
}
void
_kh_dir_diff (kqueue_sub *sub, GFileMonitorSource *source)
{
dep_list *was;
handle_ctx ctx;
g_assert (sub != NULL);
g_assert (source != NULL);
memset (&ctx, 0, sizeof (handle_ctx));
ctx.sub = sub;
ctx.source = source;
was = sub->deps;
sub->deps = dl_listing (sub->filename);
dl_calculate (was, sub->deps, &cbs, &ctx);
dl_free (was);
}
