Cleanup Semaphore class.

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 1598 matching lines @@
 }
 
 
 
 void Thread::YieldCPU() {
   Sleep(0);
 }
 
 
 // ----------------------------------------------------------------------------
-// Win32 semaphore support.
-//
-// On Win32 semaphores are implemented using Win32 Semaphore objects. The
-// semaphores are anonymous. Also, the semaphores are initialized to have
-// no upper limit on count.
-
-
-class Win32Semaphore : public Semaphore {
- public:
-  explicit Win32Semaphore(int count) {
-    sem = ::CreateSemaphoreA(NULL, count, 0x7fffffff, NULL);
-  }
-
-  ~Win32Semaphore() {
-    CloseHandle(sem);
-  }
-
-  void Wait() {
-    WaitForSingleObject(sem, INFINITE);
-  }
-
-  bool Wait(int timeout) {
-    // Timeout in Windows API is in milliseconds.
-    DWORD millis_timeout = timeout / 1000;
-    return WaitForSingleObject(sem, millis_timeout) != WAIT_TIMEOUT;
-  }
-
-  void Signal() {
-    LONG dummy;
-    ReleaseSemaphore(sem, 1, &dummy);
-  }
-
- private:
-  HANDLE sem;
-};
-
-
-Semaphore* OS::CreateSemaphore(int count) {
-  return new Win32Semaphore(count);
-}
-
-
-// ----------------------------------------------------------------------------
 // Win32 socket support.
 //
 
 class Win32Socket : public Socket {
  public:
   explicit Win32Socket() {
     // Create the socket.
     socket_ = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
   }
   explicit Win32Socket(SOCKET socket): socket_(socket) { }
@@ skipping 189 matching lines @@
   limit_mutex = new Mutex();
 }
 
 
 void OS::TearDown() {
   delete limit_mutex;
 }
 
 
 } }  // namespace v8::internal