Use 'Directory.watch' on Windows in pkg/watcher, instead of pooling.

runtime/bin/eventhandler_win.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef BIN_EVENTHANDLER_WIN_H_
 #define BIN_EVENTHANDLER_WIN_H_
 
 #if !defined(BIN_EVENTHANDLER_H_)
 #error Do not include eventhandler_win.h directly; use eventhandler.h instead.
 #endif
@@ skipping 75 matching lines @@
   OVERLAPPED* GetCleanOverlapped() {
     memset(&overlapped_, 0, sizeof(overlapped_));
     return &overlapped_;
   }
 
   // Returns a WASBUF structure initialized with the data in this IO buffer.
   WSABUF* GetWASBUF() {
     wbuf_.buf = GetBufferStart();
     wbuf_.len = GetBufferSize();
     return &wbuf_;
-  };
+  }
 
   void set_data_length(int data_length) { data_length_ = data_length; }
 
  private:
   OverlappedBuffer(int buffer_size, Operation operation)
       : operation_(operation), buflen_(buffer_size) {
     memset(GetBufferStart(), 0, GetBufferSize());
     if (operation == kRecvFrom) {
       // Reserve part of the buffer for the length of source sockaddr
       // and source sockaddr.
@@ skipping 235 matching lines @@
         events_(events),
         recursive_(recursive) {
     type_ = kDirectoryWatch;
   }
 
   virtual void EnsureInitialized(EventHandlerImplementation* event_handler);
   virtual bool IsClosed();
 
   virtual bool IssueRead();
 
+  void Stop();
+
  private:
   int events_;
   bool recursive_;
 };
 
 
 class SocketHandle : public Handle {
  public:
   SOCKET socket() { return reinterpret_cast<SOCKET>(handle_); }
 
@@ skipping 13 matching lines @@
                                     AcceptEx_(NULL),
                                     pending_accept_count_(0),
                                     accepted_head_(NULL),
                                     accepted_tail_(NULL) {
     type_ = kListenSocket;
   }
   virtual ~ListenSocket() {
     ASSERT(!HasPendingAccept());
     ASSERT(accepted_head_ == NULL);
     ASSERT(accepted_tail_ == NULL);
-  };
+  }
 
   // Socket interface exposing normal socket operations.
   ClientSocket* Accept();
   bool CanAccept();
 
   // Internal interface used by the event handler.
   bool HasPendingAccept() { return pending_accept_count_ > 0; }
   bool IssueAccept();
   void AcceptComplete(OverlappedBuffer* buffer, HANDLE completion_port);
 
@@ skipping 36 matching lines @@
     LoadDisconnectEx();
     type_ = kClientSocket;
   }
 
   virtual ~ClientSocket() {
     // Don't delete this object until all pending requests have been handled.
     ASSERT(!HasPendingRead());
     ASSERT(!HasPendingWrite());
     ASSERT(next_ == NULL);
     ASSERT(closed_ == true);
-  };
+  }
 
   void Shutdown(int how);
 
   // Internal interface used by the event handler.
   virtual bool IssueRead();
   virtual bool IssueWrite();
   void IssueDisconnect();
   void DisconnectComplete(OverlappedBuffer* buffer);
 
   void ConnectComplete(OverlappedBuffer* buffer);
@@ skipping 24 matching lines @@
 class DatagramSocket : public SocketHandle {
  public:
   explicit DatagramSocket(SOCKET s) : SocketHandle(s) {
     type_ = kDatagramSocket;
   }
 
   virtual ~DatagramSocket() {
     // Don't delete this object until all pending requests have been handled.
     ASSERT(!HasPendingRead());
     ASSERT(!HasPendingWrite());
-  };
+  }
 
   // Internal interface used by the event handler.
   virtual bool IssueRecvFrom();
   virtual bool IssueSendTo(sockaddr* sa, socklen_t sa_len);
 
   virtual void EnsureInitialized(EventHandlerImplementation* event_handler);
   virtual void DoClose();
   virtual bool IsClosed();
 };
 
@@ skipping 31 matching lines @@
 
   TimeoutQueue timeout_queue_;  // Time for next timeout.
   bool shutdown_;
   HANDLE completion_port_;
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_EVENTHANDLER_WIN_H_