Make socket send and receive more robust and return 0 on failure.

src/platform-win32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1830 matching lines @@
     int status = shutdown(socket_, SD_BOTH);
     closesocket(socket_);
     socket_ = INVALID_SOCKET;
     return status == SOCKET_ERROR;
   }
   return true;
 }
 
 
 int Win32Socket::Send(const char* data, int len) const {
+  if (len <= 0) return 0;
   int status = send(socket_, data, len, 0);
-  return status;
+  return (status == SOCKET_ERROR) ? 0 : status;
 }
 
 
 int Win32Socket::Receive(char* data, int len) const {
+  if (len <= 0) return 0;
   int status = recv(socket_, data, len, 0);
-  return status;
+  return (status == SOCKET_ERROR) ? 0 : status;
 }
 
 
 bool Win32Socket::SetReuseAddress(bool reuse_address) {
   BOOL on = reuse_address ? true : false;
   int status = setsockopt(socket_, SOL_SOCKET, SO_REUSEADDR,
                           reinterpret_cast<char*>(&on), sizeof(on));
   return status == SOCKET_ERROR;
 }
 
@@ skipping 236 matching lines @@
 
 
 void Sampler::Stop() {
   ASSERT(IsActive());
   SamplerThread::RemoveActiveSampler(this);
   SetActive(false);
 }
 
 
 } }  // namespace v8::internal