/src/mozilla-central/xpcom/threads/EventQueue.cpp
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1 | | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
3 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
4 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
5 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
6 | | |
7 | | #include "mozilla/EventQueue.h" |
8 | | #include "nsIRunnable.h" |
9 | | |
10 | | using namespace mozilla; |
11 | | |
12 | | EventQueue::EventQueue(EventPriority aPriority) |
13 | 12 | { |
14 | 12 | } |
15 | | |
16 | | void |
17 | | EventQueue::PutEvent(already_AddRefed<nsIRunnable>&& aEvent, |
18 | | EventPriority aPriority, |
19 | | const MutexAutoLock& aProofOfLock) |
20 | 194 | { |
21 | 194 | nsCOMPtr<nsIRunnable> event(aEvent); |
22 | 194 | mQueue.Push(std::move(event)); |
23 | 194 | } |
24 | | |
25 | | already_AddRefed<nsIRunnable> |
26 | | EventQueue::GetEvent(EventPriority* aPriority, |
27 | | const MutexAutoLock& aProofOfLock) |
28 | 63 | { |
29 | 63 | if (mQueue.IsEmpty()) { |
30 | 32 | return nullptr; |
31 | 32 | } |
32 | 31 | |
33 | 31 | if (aPriority) { |
34 | 18 | *aPriority = EventPriority::Normal; |
35 | 18 | } |
36 | 31 | |
37 | 31 | nsCOMPtr<nsIRunnable> result = mQueue.Pop(); |
38 | 31 | return result.forget(); |
39 | 31 | } |
40 | | |
41 | | bool |
42 | | EventQueue::IsEmpty(const MutexAutoLock& aProofOfLock) |
43 | 19 | { |
44 | 19 | return mQueue.IsEmpty(); |
45 | 19 | } |
46 | | |
47 | | bool |
48 | | EventQueue::HasReadyEvent(const MutexAutoLock& aProofOfLock) |
49 | 19 | { |
50 | 19 | return !IsEmpty(aProofOfLock); |
51 | 19 | } |
52 | | |
53 | | already_AddRefed<nsIRunnable> |
54 | | EventQueue::PeekEvent(const MutexAutoLock& aProofOfLock) |
55 | 0 | { |
56 | 0 | if (mQueue.IsEmpty()) { |
57 | 0 | return nullptr; |
58 | 0 | } |
59 | 0 | |
60 | 0 | nsCOMPtr<nsIRunnable> result = mQueue.FirstElement(); |
61 | 0 | return result.forget(); |
62 | 0 | } |
63 | | |
64 | | size_t |
65 | | EventQueue::Count(const MutexAutoLock& aProofOfLock) const |
66 | 0 | { |
67 | 0 | return mQueue.Count(); |
68 | 0 | } |