First part of an RPC mechanism for container <-> host communication

Mostly based on the protobuf based implementation from Mir.

android/service/daemon.cpp

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2016 Simon Fels <morphis@gravedo.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, 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 "android/service/daemon.h"
+#include "android/service/host_connector.h"
+
+#include "core/posix/signal.h"
+
+#include <memory>
+
+#include <cstdlib>
+
+namespace anbox {
+namespace android {
+Daemon::Daemon() {
+}
+
+Daemon::~Daemon() {
+}
+
+int Daemon::run() {
+    auto trap = core::posix::trap_signals_for_process({core::posix::Signal::sig_term,
+                                                       core::posix::Signal::sig_int});
+    trap->signal_raised().connect([trap](const core::posix::Signal&) {
+        trap->stop();
+    });
+
+    auto host_connector = std::make_shared<HostConnector>();
+
+    trap->run();
+
+    return EXIT_SUCCESS;
+}
+} // namespace android
+} // namespace anbox