shill/net/io_ready_handler.h

// Copyright 2018 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 SHILL_NET_IO_READY_HANDLER_H_
#define SHILL_NET_IO_READY_HANDLER_H_

#include <memory>

#include <base/files/file_descriptor_watcher_posix.h>

#include "shill/net/io_handler.h"

namespace shill {

// This handler is different from the IOInputHandler
// in that we don't read from the file handle and
// leave that to the caller.  This is useful in accept()ing
// sockets and effort to working with peripheral libraries.
class IOReadyHandler : public IOHandler {
 public:
  IOReadyHandler(int fd, ReadyMode mode, const ReadyCallback& ready_callback);
  ~IOReadyHandler();

  void Start() override;
  void Stop() override;

 private:
  int fd_;
  std::unique_ptr<base::FileDescriptorWatcher::Controller> watcher_;
  ReadyMode ready_mode_;
  ReadyCallback ready_callback_;
};

}  // namespace shill

#endif  // SHILL_NET_IO_READY_HANDLER_H_