update_engine: Switch to chrome-dbus for client requests in update_engine
update_engine daemon acts as DBus client to send DBus calls to shill,
power_manager and chrome, and to listen for signals from shill, chrome
and login_manager. This patch migrates these calls and signals to use
chrome-dbus framework instead of dbus-glib.
All references to dbus-glib code are removed.
BUG=chromium:419827
TEST=Updated unittest. Deployed on a link device and tested interactions with shill and chromium.
Change-Id: I31b389e0d1690cccb115ff3b6539c876ba81bd0e
Reviewed-on: https://chromium-review.googlesource.com/290990
Tested-by: Alex Deymo <deymo@chromium.org>
Reviewed-by: Alex Deymo <deymo@chromium.org>
Commit-Queue: Alex Deymo <deymo@chromium.org>
Trybot-Ready: Alex Deymo <deymo@chromium.org>
diff --git a/shill_proxy.h b/shill_proxy.h
new file mode 100644
index 0000000..3d1b376
--- /dev/null
+++ b/shill_proxy.h
@@ -0,0 +1,45 @@
+// Copyright 2015 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UPDATE_ENGINE_SHILL_PROXY_H_
+#define UPDATE_ENGINE_SHILL_PROXY_H_
+
+#include <memory>
+#include <string>
+
+#include <base/macros.h>
+#include <dbus/bus.h>
+
+#include "update_engine/dbus_proxies.h"
+#include "update_engine/shill_proxy_interface.h"
+
+namespace chromeos_update_engine {
+
+// This class implements the connection to shill using real DBus calls.
+class ShillProxy : public ShillProxyInterface {
+ public:
+ explicit ShillProxy(const scoped_refptr<dbus::Bus>& bus);
+ ~ShillProxy() override = default;
+
+ // Initializes the ShillProxy instance creating the manager proxy from the
+ // |bus_|.
+ bool Init();
+
+ // ShillProxyInterface overrides.
+ org::chromium::flimflam::ManagerProxyInterface* GetManagerProxy() override;
+ std::unique_ptr<org::chromium::flimflam::ServiceProxyInterface>
+ GetServiceForPath(const std::string& path) override;
+
+ private:
+ // A reference to the main bus for creating new ServiceProxy instances.
+ scoped_refptr<dbus::Bus> bus_;
+ std::unique_ptr<org::chromium::flimflam::ManagerProxyInterface>
+ manager_proxy_;
+
+ DISALLOW_COPY_AND_ASSIGN(ShillProxy);
+};
+
+} // namespace chromeos_update_engine
+
+#endif // UPDATE_ENGINE_SHILL_PROXY_H_