WaitableEvent

chrome/common/child_process.cc

 // Copyright (c) 2006-2008 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 <windows.h>
 
 #include "chrome/common/child_process.h"
 
 #include "base/atomic_ref_count.h"
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/string_util.h"
+#include "base/waitable_event.h"
 #include "chrome/common/chrome_switches.h"
 #include "webkit/glue/webkit_glue.h"
 
 ChildProcess* ChildProcess::child_process_;
 MessageLoop* ChildProcess::main_thread_loop_;
 static base::AtomicRefCount ref_count;
-HANDLE ChildProcess::shutdown_event_;
+base::WaitableEvent* ChildProcess::shutdown_event_;
 
 
 ChildProcess::ChildProcess() {
   DCHECK(!child_process_);
 }
 
 ChildProcess::~ChildProcess() {
   DCHECK(child_process_ == this);
 }
 
@@ skipping 14 matching lines @@
 // static
 bool ChildProcess::ProcessRefCountIsZero() {
   return base::AtomicRefCountIsZero(&ref_count);
 }
 
 void ChildProcess::OnFinalRelease() {
   DCHECK(main_thread_loop_);
   main_thread_loop_->PostTask(FROM_HERE, new MessageLoop::QuitTask());
 }
 
-HANDLE ChildProcess::GetShutDownEvent() {
+base::WaitableEvent* ChildProcess::GetShutDownEvent() {
   return shutdown_event_;
 }
 
 // On error, it is OK to leave the global pointers, as long as the only
 // non-NULL pointers are valid. GlobalCleanup will always get called, which
 // will delete any non-NULL services.
 bool ChildProcess::GlobalInit(const std::wstring &channel_name,
                               ChildProcessFactoryInterface *factory) {
   // OK to be called multiple times.
   if (main_thread_loop_)
     return true;
 
   if (channel_name.empty()) {
     NOTREACHED() << "Unable to get the channel name";
     return false;
   }
 
   // Remember the current message loop, so we can communicate with this thread
   // again when we need to shutdown (see ReleaseProcess).
   main_thread_loop_ = MessageLoop::current();
 
   // An event that will be signalled when we shutdown.
-  shutdown_event_ = CreateEvent(NULL, TRUE, FALSE, NULL);
+  shutdown_event_ = new base::WaitableEvent(true, false);
 
   child_process_ = factory->Create(channel_name);
 
   CommandLine command_line;
   if (command_line.HasSwitch(switches::kUserAgent)) {
     webkit_glue::SetUserAgent(WideToUTF8(
         command_line.GetSwitchValue(switches::kUserAgent)));
   }
 
   return true;
 }
 
 void ChildProcess::GlobalCleanup() {
   // Signal this event before destroying the child process.  That way all
   // background threads.
   // For example, in the renderer the RenderThread instances will be able to
   // notice shutdown before the render process begins waiting for them to exit.
-  SetEvent(shutdown_event_);
+  shutdown_event_->Signal();
 
   // Destroy the child process first to force all background threads to
   // terminate before we bring down other resources.  (We null pointers
   // just in case.)
   child_process_->Cleanup();
   delete child_process_;
   child_process_ = NULL;
 
   main_thread_loop_ = NULL;
 
-  CloseHandle(shutdown_event_);
+  delete shutdown_event_;
   shutdown_event_ = NULL;
 }