import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

ipc/unixfd/UnixSocketWatcher.h

@@ -0,0 +1,72 @@
+/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_ipc_UnixSocketWatcher_h
+#define mozilla_ipc_UnixSocketWatcher_h
+
+#include <sys/socket.h>
+#include "UnixFdWatcher.h"
+
+namespace mozilla {
+namespace ipc {
+
+class UnixSocketWatcher : public UnixFdWatcher
+{
+public:
+  enum ConnectionStatus {
+    SOCKET_IS_DISCONNECTED = 0,
+    SOCKET_IS_LISTENING,
+    SOCKET_IS_CONNECTING,
+    SOCKET_IS_CONNECTED
+  };
+
+  virtual ~UnixSocketWatcher();
+
+  virtual void Close() override;
+
+  ConnectionStatus GetConnectionStatus() const
+  {
+    return mConnectionStatus;
+  }
+
+  // Connect to a peer
+  nsresult Connect(const struct sockaddr* aAddr, socklen_t aAddrLen);
+
+  // Listen on socket for incoming connection requests
+  nsresult Listen(const struct sockaddr* aAddr, socklen_t aAddrLen);
+
+  // Callback method for successful connection requests
+  virtual void OnConnected() {};
+
+  // Callback method for successful listen requests
+  virtual void OnListening() {};
+
+  // Callback method for accepting from a listening socket
+  virtual void OnSocketCanAcceptWithoutBlocking() {};
+
+  // Callback method for receiving from socket
+  virtual void OnSocketCanReceiveWithoutBlocking() {};
+
+  // Callback method for sending on socket
+  virtual void OnSocketCanSendWithoutBlocking() {};
+
+protected:
+  UnixSocketWatcher(MessageLoop* aIOLoop);
+  UnixSocketWatcher(MessageLoop* aIOLoop, int aFd,
+                    ConnectionStatus aConnectionStatus);
+  void SetSocket(int aFd, ConnectionStatus aConnectionStatus);
+
+private:
+  void OnFileCanReadWithoutBlocking(int aFd) override;
+  void OnFileCanWriteWithoutBlocking(int aFd) override;
+
+  ConnectionStatus mConnectionStatus;
+};
+
+}
+}
+
+#endif