shill/upstart/upstart_proxy.h

// 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 SHILL_UPSTART_UPSTART_PROXY_H_
#define SHILL_UPSTART_UPSTART_PROXY_H_

// An implementation of UpstartProxyInterface.
// Do not instantiate this class directly.  use
// ProxyFactory::CreateUpstartProxy instead.

#include <string>
#include <vector>

#include <base/compiler_specific.h>

#include "shill/dbus_proxies/upstart.h"
#include "shill/proxy_factory.h"
#include "shill/upstart/upstart_proxy_interface.h"

namespace shill {

class Error;

class UpstartProxy : public UpstartProxyInterface {
 public:
  ~UpstartProxy() override = default;

  // Inherited from UpstartProxyInterface.
  void EmitEvent(const std::string &name,
                 const std::vector<std::string> &env,
                 bool wait) override;

 private:
  // Only this factory method can create an UpstartProxy.
  friend UpstartProxyInterface *ProxyFactory::CreateUpstartProxy();

  static const int kCommandTimeoutMilliseconds;

  class Proxy : public com::ubuntu::Upstart0_6_proxy,
                public DBus::ObjectProxy {
   public:
    explicit Proxy(DBus::Connection *connection);
    ~Proxy() override = default;

   private:
    static const char kServiceName[];
    static const char kServicePath[];

    // Signal callbacks inherited from org::chromium::Upstart0_6_proxy.
    void JobAdded(const ::DBus::Path &job) override;
    void JobRemoved(const ::DBus::Path &job) override;

    // Async callbacks.
    void EmitEventCallback(const ::DBus::Error &error, void *data) override;

    DISALLOW_COPY_AND_ASSIGN(Proxy);
  };

  // Constructs a Upstart DBus object proxy with signals dispatched to
  // |delegate|.
  explicit UpstartProxy(DBus::Connection *connection);

  // Dummy method required by async DBus call.
  static void FromDBusError(const DBus::Error &dbus_error, Error *error);

  Proxy proxy_;

  DISALLOW_COPY_AND_ASSIGN(UpstartProxy);
};

}  // namespace shill

#endif  // SHILL_UPSTART_UPSTART_PROXY_H_