blob: fc20e28434aefc3c59481849b1d1cacdd3ff25ce (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef MOZILLA_GFX_SYNCHRONOUSTASK_H
#define MOZILLA_GFX_SYNCHRONOUSTASK_H
#include "mozilla/ReentrantMonitor.h" // for ReentrantMonitor, etc
namespace mozilla {
namespace layers {
// Helper that creates a monitor and a "done" flag, then enters the monitor.
// This can go away when we switch ImageBridge to an XPCOM thread.
class MOZ_STACK_CLASS SynchronousTask
{
friend class AutoCompleteTask;
public:
explicit SynchronousTask(const char* name)
: mMonitor(name),
mAutoEnter(mMonitor),
mDone(false)
{}
void Wait() {
while (!mDone) {
mMonitor.Wait();
}
}
private:
void Complete() {
mDone = true;
mMonitor.NotifyAll();
}
private:
ReentrantMonitor mMonitor;
ReentrantMonitorAutoEnter mAutoEnter;
bool mDone;
};
class MOZ_STACK_CLASS AutoCompleteTask
{
public:
explicit AutoCompleteTask(SynchronousTask* aTask)
: mTask(aTask),
mAutoEnter(aTask->mMonitor)
{
}
~AutoCompleteTask() {
mTask->Complete();
}
private:
SynchronousTask* mTask;
ReentrantMonitorAutoEnter mAutoEnter;
};
}
}
#endif
|
