OLD | NEW |
| (Empty) |
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/waitable_event.h" | |
9 #include "base/win/object_watcher.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 | |
OLD | NEW |