From 10e02492f5e74d50fb39f752ed79d5c597b0ae90 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 5 Jun 2009 04:29:57 +0200
Subject: add generic device status monitoring API

---
 reserve-monitor-test.c | 102 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 reserve-monitor-test.c

(limited to 'reserve-monitor-test.c')

diff --git a/reserve-monitor-test.c b/reserve-monitor-test.c
new file mode 100644
index 0000000..aa9fdb1
--- /dev/null
+++ b/reserve-monitor-test.c
@@ -0,0 +1,102 @@
+/***
+  Copyright 2009 Lennart Poettering
+
+  Permission is hereby granted, free of charge, to any person
+  obtaining a copy of this software and associated documentation files
+  (the "Software"), to deal in the Software without restriction,
+  including without limitation the rights to use, copy, modify, merge,
+  publish, distribute, sublicense, and/or sell copies of the Software,
+  and to permit persons to whom the Software is furnished to do so,
+  subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be
+  included in all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  SOFTWARE.
+***/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+#include <dbus/dbus.h>
+
+#include "reserve-monitor.h"
+
+static DBusConnection *connection = NULL;
+
+static void change_cb(rm_monitor *m) {
+	int e;
+
+	if ((e = rm_busy(m)) < 0) {
+		fprintf(stderr, "Failed to query device status: %s\n", strerror(-e));
+		dbus_connection_close(connection);
+		return;
+	}
+
+	printf("Device is busy: %s\n", e ? "yes" : "no");
+}
+
+int main(int argc, char *argv[]) {
+	DBusError error;
+	int r = 1, e;
+	rm_monitor *monitor = NULL;
+	const char *dname = NULL;
+
+	dbus_error_init(&error);
+
+	if (argc >= 2)
+		dname = argv[1];
+	else
+		dname = "Audio0";
+
+	if (!(connection = dbus_bus_get_private(DBUS_BUS_SESSION, &error))) {
+		fprintf(stderr, "Failed to connect to session bus: %s\n", error.message);
+		goto finish;
+	}
+
+	if ((e = rm_watch(
+		    &monitor,
+		    connection,
+		    dname,
+		    change_cb,
+		    &error)) < 0) {
+
+		fprintf(stderr, "Failed to watch device: %s\n", strerror(-e));
+		goto finish;
+	}
+
+	if ((e = rm_busy(monitor)) < 0) {
+		fprintf(stderr, "Failed to query device status: %s\n", strerror(-e));
+		goto finish;
+	}
+
+	printf("Device is busy: %s\n", e ? "yes" : "no");
+
+	while (dbus_connection_read_write_dispatch(connection, -1))
+                ;
+
+	r = 0;
+	fprintf(stderr, "Exiting cleanly.\n");
+
+finish:
+	if (monitor)
+		rm_release(monitor);
+
+	if (connection) {
+		if (dbus_connection_get_is_connected(connection))
+			dbus_connection_close(connection);
+
+		dbus_connection_unref(connection);
+	}
+
+	return r;
+}
-- 
cgit