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comparison: ipc/chromium/src/base/waitable_event_watcher_win.cc
ipc/chromium/src/base/waitable_event_watcher_win.cc
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| -1:000000000000 | 0:c4d39adbe0d9 |
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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/waitable_event_watcher.h" | |
| 6 | |
| 7 #include "base/compiler_specific.h" | |
| 8 #include "base/object_watcher.h" | |
| 9 #include "base/waitable_event.h" | |
| 10 | |
| 11 namespace base { | |
| 12 | |
| 13 WaitableEventWatcher::ObjectWatcherHelper::ObjectWatcherHelper( | |
| 14 WaitableEventWatcher* watcher) | |
| 15 : watcher_(watcher) { | |
| 16 }; | |
| 17 | |
| 18 void WaitableEventWatcher::ObjectWatcherHelper::OnObjectSignaled(HANDLE h) { | |
| 19 watcher_->OnObjectSignaled(); | |
| 20 } | |
| 21 | |
| 22 | |
| 23 WaitableEventWatcher::WaitableEventWatcher() | |
| 24 : event_(NULL), | |
| 25 ALLOW_THIS_IN_INITIALIZER_LIST(helper_(this)), | |
| 26 delegate_(NULL) { | |
| 27 } | |
| 28 | |
| 29 WaitableEventWatcher::~WaitableEventWatcher() { | |
| 30 } | |
| 31 | |
| 32 bool WaitableEventWatcher::StartWatching(WaitableEvent* event, | |
| 33 Delegate* delegate) { | |
| 34 delegate_ = delegate; | |
| 35 event_ = event; | |
| 36 | |
| 37 return watcher_.StartWatching(event->handle(), &helper_); | |
| 38 } | |
| 39 | |
| 40 void WaitableEventWatcher::StopWatching() { | |
| 41 delegate_ = NULL; | |
| 42 event_ = NULL; | |
| 43 watcher_.StopWatching(); | |
| 44 } | |
| 45 | |
| 46 WaitableEvent* WaitableEventWatcher::GetWatchedEvent() { | |
| 47 return event_; | |
| 48 } | |
| 49 | |
| 50 void WaitableEventWatcher::OnObjectSignaled() { | |
| 51 WaitableEvent* event = event_; | |
| 52 Delegate* delegate = delegate_; | |
| 53 event_ = NULL; | |
| 54 delegate_ = NULL; | |
| 55 DCHECK(event); | |
| 56 | |
| 57 delegate->OnWaitableEventSignaled(event); | |
| 58 } | |
| 59 | |
| 60 } // namespace base |
