Set vmstats socket as blocking.

runtime/bin/vmstats_impl.cc

 // Copyright (c) 2013, 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.
 
 #include "bin/vmstats_impl.h"
 
 #include <sstream>
 
 #include "bin/file.h"
 #include "bin/log.h"
@@ skipping 131 matching lines @@
       dart::Monitor m;
       MonitorLocker ml(&m);
       ml.Wait(RETRY_PAUSE);
 
       continue;
     }
     if (socket < 0) {
       // Stop() closed the socket.
       return;
     }
+    Socket::SetBlocking(socket);
 
     // TODO(tball): rewrite this to use STL, so as to eliminate the static
     // buffer and support resource URLs that are longer than BUFSIZE.
 
     // Read request.
     char buffer[BUFSIZE + 1];
     intptr_t len = Socket::Read(socket, buffer, BUFSIZE);
     if (len <= 0) {
       // Invalid HTTP request, ignore.
       continue;
     }
-    intptr_t n;
-    while ((n = Socket::Read(socket, buffer + len, BUFSIZE - len)) > 0) {
-      len += n;
-    }
     buffer[len] = '\0';
 
     // Verify it's a GET request.
     // TODO(tball): support POST requests.
     if (strncmp("GET ", buffer, 4) != 0 && strncmp("get ", buffer, 4) != 0) {
       Log::PrintErr("Unsupported HTTP request type");
       const char* response = "HTTP/1.1 403 Forbidden\n"
           "Content-Length: 120\n"
           "Connection: close\n"
           "Content-Type: text/html\n\n"
@@ skipping 149 matching lines @@
   VmStatusPlugin* plugin = instance_->registered_plugin_list_;
   while (plugin != NULL) {
     char* result = (plugin->callback())(request);
     if (result != NULL) {
       return result;
     }
     plugin = plugin->next();
   }
   return NULL;
 }