--- a/hotspot/agent/src/os/win32/Monitor.cpp	Thu Sep 29 18:53:42 2011 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,176 +0,0 @@
-/*
- * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#include <stdio.h>
-#include <assert.h>
-#include "Monitor.hpp"
-
-Monitor::Monitor() {
-  _lock_count = -1;       // No threads have entered the critical section
-  _owner = NULL;
-  _lock_event = CreateEvent(NULL, false, false, NULL);
-  _wait_event = CreateEvent(NULL, true, false, NULL);
-  _counter = 0;
-  _tickets = 0;
-  _waiters = 0;
-}
-
-Monitor::~Monitor() {
-  assert(_owner == NULL);    // Otherwise, owned monitor being deleted
-  assert(_lock_count == -1); // Otherwise, monitor being deleted with non -1 lock count
-  CloseHandle(_lock_event);
-  CloseHandle(_wait_event);
-}
-
-void
-Monitor::lock() {
-  if (InterlockedIncrement(&_lock_count) == 0) {
-    // Success, we now own the lock
-  } else {
-    DWORD dwRet = WaitForSingleObject((HANDLE)_lock_event,  INFINITE);
-    assert(dwRet == WAIT_OBJECT_0); // Unexpected return value from WaitForSingleObject
-  }
-  assert(owner() == NULL); // Otherwise, lock count and owner are inconsistent
-  setOwner(GetCurrentThread());
-}
-
-void
-Monitor::unlock() {
-  setOwner(NULL);
-  if (InterlockedDecrement(&_lock_count) >= 0) {
-    // Wake a waiting thread up
-    DWORD dwRet = SetEvent(_lock_event);
-    assert(dwRet != 0); // Unexpected return value from SetEvent
-  }
-}
-
-bool
-Monitor::wait(long timeout) {
-  assert(owner() != NULL);
-  assert(owner() == GetCurrentThread());
-
-  // 0 means forever. Convert to Windows specific code.
-  DWORD timeout_value = (timeout == 0) ? INFINITE : timeout;
-  DWORD which;
-
-  long c = _counter;
-  bool retry = false;
-
-  _waiters++;
-  // Loop until condition variable is signaled.  The event object is
-  // set whenever the condition variable is signaled, and tickets will
-  // reflect the number of threads which have been notified. The counter
-  // field is used to make sure we don't respond to notifications that
-  // have occurred *before* we started waiting, and is incremented each
-  // time the condition variable is signaled.
-
-  while (true) {
-
-    // Leave critical region
-    unlock();
-
-    // If this is a retry, let other low-priority threads have a chance
-    // to run.  Make sure that we sleep outside of the critical section.
-    if (retry) {
-      Sleep(1);
-    } else {
-      retry = true;
-    }
-
-    which = WaitForSingleObject(_wait_event, timeout_value);
-    // Enter critical section
-    lock();
-
-    if (_tickets != 0 && _counter != c) break;
-
-    if (which == WAIT_TIMEOUT) {
-      --_waiters;
-      return true;
-    }
-  }
-  _waiters--;
-
-  // If this was the last thread to be notified, then we need to reset
-  // the event object.
-  if (--_tickets == 0) {
-    ResetEvent(_wait_event);
-  }
-
-  return false;
-}
-
-// Notify a single thread waiting on this monitor
-bool
-Monitor::notify() {
-  assert(ownedBySelf()); // Otherwise, notify on unknown thread
-
-  if (_waiters > _tickets) {
-    if (!SetEvent(_wait_event)) {
-      return false;
-    }
-    _tickets++;
-    _counter++;
-  }
-
-  return true;
-}
-
-// Notify all threads waiting on this monitor
-bool
-Monitor::notifyAll() {
-  assert(ownedBySelf()); // Otherwise, notifyAll on unknown thread
-
-  if (_waiters > 0) {
-    if (!SetEvent(_wait_event)) {
-      return false;
-    }
-    _tickets = _waiters;
-    _counter++;
-  }
-
-  return true;
-}
-
-HANDLE
-Monitor::owner() {
-  return _owner;
-}
-
-void
-Monitor::setOwner(HANDLE owner) {
-  if (owner != NULL) {
-    assert(_owner == NULL);                 // Setting owner thread of already owned monitor
-    assert(owner == GetCurrentThread());    // Else should not be doing this
-  } else {
-    HANDLE oldOwner = _owner;
-    assert(oldOwner != NULL);               // Removing the owner thread of an unowned mutex
-    assert(oldOwner == GetCurrentThread());
-  }
-  _owner = owner;
-}
-
-bool
-Monitor::ownedBySelf() {
-  return (_owner == GetCurrentThread());
-}