1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/base/waitable_event_watcher_win.cc Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,60 @@
1.4 +// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#include "base/waitable_event_watcher.h"
1.9 +
1.10 +#include "base/compiler_specific.h"
1.11 +#include "base/object_watcher.h"
1.12 +#include "base/waitable_event.h"
1.13 +
1.14 +namespace base {
1.15 +
1.16 +WaitableEventWatcher::ObjectWatcherHelper::ObjectWatcherHelper(
1.17 + WaitableEventWatcher* watcher)
1.18 + : watcher_(watcher) {
1.19 +};
1.20 +
1.21 +void WaitableEventWatcher::ObjectWatcherHelper::OnObjectSignaled(HANDLE h) {
1.22 + watcher_->OnObjectSignaled();
1.23 +}
1.24 +
1.25 +
1.26 +WaitableEventWatcher::WaitableEventWatcher()
1.27 + : event_(NULL),
1.28 + ALLOW_THIS_IN_INITIALIZER_LIST(helper_(this)),
1.29 + delegate_(NULL) {
1.30 +}
1.31 +
1.32 +WaitableEventWatcher::~WaitableEventWatcher() {
1.33 +}
1.34 +
1.35 +bool WaitableEventWatcher::StartWatching(WaitableEvent* event,
1.36 + Delegate* delegate) {
1.37 + delegate_ = delegate;
1.38 + event_ = event;
1.39 +
1.40 + return watcher_.StartWatching(event->handle(), &helper_);
1.41 +}
1.42 +
1.43 +void WaitableEventWatcher::StopWatching() {
1.44 + delegate_ = NULL;
1.45 + event_ = NULL;
1.46 + watcher_.StopWatching();
1.47 +}
1.48 +
1.49 +WaitableEvent* WaitableEventWatcher::GetWatchedEvent() {
1.50 + return event_;
1.51 +}
1.52 +
1.53 +void WaitableEventWatcher::OnObjectSignaled() {
1.54 + WaitableEvent* event = event_;
1.55 + Delegate* delegate = delegate_;
1.56 + event_ = NULL;
1.57 + delegate_ = NULL;
1.58 + DCHECK(event);
1.59 +
1.60 + delegate->OnWaitableEventSignaled(event);
1.61 +}
1.62 +
1.63 +} // namespace base
