The Tor Browser: security/sandbox/chromium/base/synchronization/lock_impl

security/sandbox/chromium/base/synchronization/lock_impl_win.cc@44a2da4a2ab2 (annotated)

Fri, 16 Jan 2015 04:50:19 +0100

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 #include "base/synchronization/lock_impl.h"
 namespace base {
 namespace internal {
 LockImpl::LockImpl() {
   // The second parameter is the spin count, for short-held locks it avoid the
   // contending thread from going to sleep which helps performance greatly.
   ::InitializeCriticalSectionAndSpinCount(&native_handle_, 2000);
 }
 LockImpl::~LockImpl() {
   ::DeleteCriticalSection(&native_handle_);
 }
 bool LockImpl::Try() {
   if (::TryEnterCriticalSection(&native_handle_) != FALSE) {
     return true;
   }
   return false;
 }
 void LockImpl::Lock() {
   ::EnterCriticalSection(&native_handle_);
 }
 void LockImpl::Unlock() {
   ::LeaveCriticalSection(&native_handle_);
 }
 }  // namespace internal
 }  // namespace base