Buffet: Move buffet over to platform2 from src/platform/buffet.
This change also open-sources buffet. The only change in this CL
is the removal of the Makefile and addition of the buffet.gyp file.
BUG=chromium:355180
TEST=USE=buffet emerge-gizmo platform2
Change-Id: Ibf8d3ac3f38313f82a9c07d79932b6f30130f9c5
diff --git a/buffet/dbus_manager.h b/buffet/dbus_manager.h
new file mode 100644
index 0000000..da91391
--- /dev/null
+++ b/buffet/dbus_manager.h
@@ -0,0 +1,61 @@
+// Copyright 2014 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 BUFFET_DBUS_MANAGER_H_
+#define BUFFET_DBUS_MANAGER_H_
+
+#include <string>
+
+#include <base/memory/scoped_ptr.h>
+#include <dbus/bus.h>
+#include <dbus/exported_object.h>
+#include <dbus/message.h>
+
+namespace buffet {
+
+// TODO(sosa): Move to chromeos/system_api once we're ready.
+const char kBuffetInterface[] = "org.chromium.Buffet";
+const char kBuffetServicePath[] = "/org/chromium/Buffet";
+const char kBuffetServiceName[] = "org.chromium.Buffet";
+
+// Methods exposed by buffet.
+const char kTestMethod[] = "TestMethod";
+
+class DBusManager;
+
+// Pointer to a member function for handling D-Bus method calls. If an empty
+// scoped_ptr is returned, an empty (but successful) response will be sent.
+typedef scoped_ptr<dbus::Response> (DBusManager::*DBusMethodCallMemberFunction)(
+ dbus::MethodCall*);
+
+// Class that manages dbus interactions in buffet.
+class DBusManager {
+ public:
+ DBusManager();
+ virtual ~DBusManager();
+
+ void Init();
+ void Finalize();
+
+ private:
+ // Connects to the D-Bus system bus and exports methods.
+ void InitDBus();
+ void ShutDownDBus();
+
+ // Exports |method_name| and uses |member| to handle calls.
+ void ExportDBusMethod(const std::string& method_name,
+ DBusMethodCallMemberFunction member);
+
+ // Callbacks for handling D-Bus signals and method calls.
+ scoped_ptr<dbus::Response> HandleTestMethod(dbus::MethodCall* method_call);
+
+ scoped_refptr<dbus::Bus> bus_;
+ dbus::ExportedObject* buffet_dbus_object_; // weak; owned by |bus_|
+
+ DISALLOW_COPY_AND_ASSIGN(DBusManager);
+};
+
+} // namespace buffet
+
+#endif // BUFFET_DBUS_MANAGER_H_
