1 files changed, 102 insertions, 0 deletions
diff --git a/source3/lib/util_event.c b/source3/lib/util_event.c
new file mode 100644
index 0000000..ea7e7b7
--- /dev/null
+++ b/source3/lib/util_event.c
@@ -0,0 +1,102 @@
+/*
+   Unix SMB/CIFS implementation.
+   Timed event library.
+   Copyright (C) Andrew Tridgell 1992-1998
+   Copyright (C) Volker Lendecke 2005-2007
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "util_event.h"
+
+struct idle_event {
+	struct tevent_timer *te;
+	struct timeval interval;
+	char *name;
+	bool (*handler)(const struct timeval *now, void *private_data);
+	void *private_data;
+};
+
+static void smbd_idle_event_handler(struct tevent_context *ctx,
+				    struct tevent_timer *te,
+				    struct timeval now,
+				    void *private_data)
+{
+	struct idle_event *event =
+		talloc_get_type_abort(private_data, struct idle_event);
+
+	TALLOC_FREE(event->te);
+
+	DEBUG(10,("smbd_idle_event_handler: %s %p called\n",
+		  event->name, event->te));
+
+	if (!event->handler(&now, event->private_data)) {
+		DEBUG(10,("smbd_idle_event_handler: %s %p stopped\n",
+			  event->name, event->te));
+		/* Don't repeat, delete ourselves */
+		TALLOC_FREE(event);
+		return;
+	}
+
+	DEBUG(10,("smbd_idle_event_handler: %s %p rescheduled\n",
+		  event->name, event->te));
+
+	event->te = tevent_add_timer(ctx, event,
+				     timeval_sum(&now, &event->interval),
+				     smbd_idle_event_handler, event);
+
+	/* We can't do much but fail here. */
+	SMB_ASSERT(event->te != NULL);
+}
+
+struct idle_event *event_add_idle(struct tevent_context *event_ctx,
+				  TALLOC_CTX *mem_ctx,
+				  struct timeval interval,
+				  const char *name,
+				  bool (*handler)(const struct timeval *now,
+						  void *private_data),
+				  void *private_data)
+{
+	struct idle_event *result;
+	struct timeval now = timeval_current();
+
+	result = talloc(mem_ctx, struct idle_event);
+	if (result == NULL) {
+		DEBUG(0, ("talloc failed\n"));
+		return NULL;
+	}
+
+	result->interval = interval;
+	result->handler = handler;
+	result->private_data = private_data;
+
+	if (!(result->name = talloc_asprintf(result, "idle_evt(%s)", name))) {
+		DEBUG(0, ("talloc failed\n"));
+		TALLOC_FREE(result);
+		return NULL;
+	}
+
+	result->te = tevent_add_timer(event_ctx, result,
+				      timeval_sum(&now, &interval),
+				      smbd_idle_event_handler, result);
+	if (result->te == NULL) {
+		DEBUG(0, ("event_add_timed failed\n"));
+		TALLOC_FREE(result);
+		return NULL;
+	}
+
+	DEBUG(10,("event_add_idle: %s %p\n", result->name, result->te));
+	return result;
+}