-
Notifications
You must be signed in to change notification settings - Fork 54
/
JobScheduler_win32.h
92 lines (65 loc) · 2.27 KB
/
JobScheduler_win32.h
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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#ifdef WIN32
# ifndef MOZILLA_GFX_TASKSCHEDULER_WIN32_H_
# define MOZILLA_GFX_TASKSCHEDULER_WIN32_H_
# include <windows.h>
# include <list>
# include "mozilla/RefPtr.h"
# include "mozilla/gfx/CriticalSection.h"
# include "mozilla/RefCounted.h"
namespace mozilla {
namespace gfx {
class WorkerThread;
class Job;
// The public interface of this class must remain identical to its equivalent
// in JobScheduler_posix.h
class MultiThreadedJobQueue {
public:
enum AccessType { BLOCKING, NON_BLOCKING };
MultiThreadedJobQueue() : mThreadsCount(0), mShuttingDown(false) {
mAvailableEvent = ::CreateEventW(nullptr, TRUE, FALSE, nullptr);
mShutdownEvent = ::CreateEventW(nullptr, TRUE, FALSE, nullptr);
}
~MultiThreadedJobQueue() {
::CloseHandle(mAvailableEvent);
::CloseHandle(mShutdownEvent);
}
bool WaitForJob(Job*& aOutJob) { return PopJob(aOutJob, BLOCKING); }
bool PopJob(Job*& aOutJob, AccessType aAccess);
void SubmitJob(Job* aJob);
void ShutDown();
size_t NumJobs();
bool IsEmpty();
void RegisterThread();
void UnregisterThread();
protected:
std::list<Job*> mJobs;
CriticalSection mSection;
HANDLE mAvailableEvent;
HANDLE mShutdownEvent;
int32_t mThreadsCount;
bool mShuttingDown;
friend class WorkerThread;
};
// The public interface of this class must remain identical to its equivalent
// in JobScheduler_posix.h
class EventObject : public external::AtomicRefCounted<EventObject> {
public:
MOZ_DECLARE_REFCOUNTED_TYPENAME(EventObject)
EventObject() { mEvent = ::CreateEventW(nullptr, TRUE, FALSE, nullptr); }
~EventObject() { ::CloseHandle(mEvent); }
void Wait() { ::WaitForSingleObject(mEvent, INFINITE); }
bool Peak() { return ::WaitForSingleObject(mEvent, 0) == WAIT_OBJECT_0; }
void Set() { ::SetEvent(mEvent); }
protected:
// TODO: it's expensive to create events so we should try to reuse them
HANDLE mEvent;
};
} // namespace gfx
} // namespace mozilla
# endif
#endif