upload android base code part6

android/system/connectivity/wifilogd/main_loop.h

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MAIN_LOOP_H_
+#define MAIN_LOOP_H_
+
+#include <memory>
+#include <string>
+
+#include "android-base/macros.h"
+
+#include "wifilogd/command_processor.h"
+#include "wifilogd/os.h"
+
+namespace android {
+namespace wifilogd {
+
+// The main event loop for wifilogd.
+class MainLoop {
+ public:
+  explicit MainLoop(const std::string& socket_name);
+  MainLoop(const std::string& socket_name, std::unique_ptr<Os> os,
+           std::unique_ptr<CommandProcessor> command_processor);
+
+  // Runs one iteration of the loop.
+  void RunOnce();
+
+ private:
+  void ProcessError(Os::Errno err);
+
+  std::unique_ptr<Os> os_;
+  std::unique_ptr<CommandProcessor> command_processor_;
+  // We use an int, rather than a unique_fd, because the file
+  // descriptor's lifetime is managed by init. (init creates
+  // the socket before forking our process.)
+  int sock_fd_;
+
+  DISALLOW_COPY_AND_ASSIGN(MainLoop);
+};
+
+}  // namespace wifilogd
+}  // namespace android
+
+#endif  // MAIN_LOOP_H_