Add basic notification support

1 files changed, 106 insertions, 0 deletions

diff --git a/common/notify-inotify.c b/common/notify-inotify.c
index e69de29b..a1e12a6a 100644
--- a/common/notify-inotify.c
+++ b/common/notify-inotify.c
@@ -0,0 +1,106 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2006-2007  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  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 2 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, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <unistd.h>
+#include <string.h>
+#include <sys/inotify.h>
+
+#include "glib-ectomy.h"
+#include "logging.h"
+#include "notify.h"
+
+static GIOChannel *io = NULL;
+
+static int fd = -1;
+static int wd = -1;
+
+static gboolean io_event(GIOChannel *chan, GIOCondition cond, gpointer data)
+{
+	unsigned char buf[129];
+	struct inotify_event *evt = (struct inotify_event *) buf;
+	int len;
+
+	if (cond & (G_IO_HUP | G_IO_ERR))
+		return FALSE;
+
+	memset(buf, 0, sizeof(buf));
+
+	len = read(fd, buf, sizeof(buf) - 1);
+	if (len < sizeof(struct inotify_event))
+		return TRUE;
+
+	if (evt->mask & (IN_CREATE | IN_MOVED_TO))
+		debug("File %s/%s created", CONFIGDIR, evt->name);
+
+	if (evt->mask & (IN_DELETE | IN_MOVED_FROM))
+		debug("File %s/%s deleted", CONFIGDIR, evt->name);
+
+	if (evt->mask & IN_MODIFY)
+		debug("File %s/%s modified", CONFIGDIR, evt->name);
+
+	return TRUE;
+}
+
+void notify_init(void)
+{
+	fd = inotify_init();
+	if (fd < 0) {
+		error("Creation of inotify context failed");
+		return;
+	}
+
+	io = g_io_channel_unix_new(fd);
+	if (!io) {
+		error("Creation of inotify channel failed");
+		return;
+	}
+
+	g_io_add_watch(io, G_IO_IN, io_event, NULL);
+
+	wd = inotify_add_watch(fd, CONFIGDIR,
+		IN_ONLYDIR | IN_CREATE | IN_DELETE | IN_MODIFY | IN_MOVE);
+	if (wd < 0)
+		error("Creation of watch for %s failed", CONFIGDIR);
+}
+
+void notify_close(void)
+{
+	if (wd != -1) {
+		inotify_rm_watch(fd, wd);
+		wd = -1;
+	}
+
+	if (io) {
+		g_io_channel_unref(io);
+		io = NULL;
+	}
+
+	if (fd != -1) {
+		close(fd);
+		fd = -1;
+	}
+}