Added labelled thread names to help with some debugging activity. Right now,...

src/platform-win32.cc

 // Copyright 2006-2008 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 1445 matching lines @@
   explicit PlatformData(HANDLE thread) : thread_(thread) {}
   HANDLE thread_;
 };
 
 
 // Initialize a Win32 thread object. The thread has an invalid thread
 // handle until it is started.
 
 Thread::Thread() : ThreadHandle(ThreadHandle::INVALID) {
   data_ = new PlatformData(kNoThread);
+#ifdef DEBUG_THREAD_NAMES
+  SetName("v8:<unknown>");
+#endif
 }
 
 
+#ifdef DEBUG_THREAD_NAMES
+Thread::Thread(const char* name) : ThreadHandle(ThreadHandle::INVALID) {
+  data_ = new PlatformData(kNoThread);
+  SetName(name);
+}
+#endif
+
+
+#ifdef DEBUG_THREAD_NAMES
+void Thread::SetName(const char* name) {
+  strncpy(name_, name, sizeof(name_));
+  name_[sizeof(name_)-1] = '\0';
+}
+#endif
+
+
 // Close our own handle for the thread.
 Thread::~Thread() {
   if (data_->thread_ != kNoThread) CloseHandle(data_->thread_);
   delete data_;
 }
 
 
 // Create a new thread. It is important to use _beginthreadex() instead of
 // the Win32 function CreateThread(), because the CreateThread() does not
 // initialize thread specific structures in the C runtime library.
@@ skipping 441 matching lines @@
 
   // Release the thread handles
   CloseHandle(data_->sampler_thread_);
   CloseHandle(data_->profiled_thread_);
 }
 
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 } }  // namespace v8::internal