/src/mozilla-central/dom/workers/WorkerHolder.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 "WorkerHolder.h" |
8 | | #include "WorkerPrivate.h" |
9 | | |
10 | | namespace mozilla { |
11 | | namespace dom { |
12 | | |
13 | | namespace { |
14 | | |
15 | | void |
16 | | AssertOnOwningThread(void* aThread) |
17 | 0 | { |
18 | 0 | if (MOZ_UNLIKELY(aThread != GetCurrentVirtualThread())) { |
19 | 0 | MOZ_CRASH_UNSAFE_OOL("WorkerHolder on the wrong thread."); |
20 | 0 | } |
21 | 0 | } |
22 | | |
23 | | } // anonymous |
24 | | |
25 | | WorkerHolder::WorkerHolder(const char* aName, Behavior aBehavior) |
26 | | : mWorkerPrivate(nullptr) |
27 | | , mBehavior(aBehavior) |
28 | | , mThread(GetCurrentVirtualThread()) |
29 | | , mName(aName) |
30 | 0 | { |
31 | 0 | } |
32 | | |
33 | | WorkerHolder::~WorkerHolder() |
34 | 0 | { |
35 | 0 | AssertOnOwningThread(mThread); |
36 | 0 | ReleaseWorkerInternal(); |
37 | 0 | MOZ_ASSERT(mWorkerPrivate == nullptr); |
38 | 0 | } |
39 | | |
40 | | bool |
41 | | WorkerHolder::HoldWorker(WorkerPrivate* aWorkerPrivate, |
42 | | WorkerStatus aFailStatus) |
43 | 0 | { |
44 | 0 | AssertOnOwningThread(mThread); |
45 | 0 | MOZ_ASSERT(aWorkerPrivate); |
46 | 0 | MOZ_ASSERT(aFailStatus >= Canceling); |
47 | 0 |
|
48 | 0 | aWorkerPrivate->AssertIsOnWorkerThread(); |
49 | 0 |
|
50 | 0 | if (!aWorkerPrivate->AddHolder(this, aFailStatus)) { |
51 | 0 | return false; |
52 | 0 | } |
53 | 0 | |
54 | 0 | mWorkerPrivate = aWorkerPrivate; |
55 | 0 | return true; |
56 | 0 | } |
57 | | |
58 | | void |
59 | | WorkerHolder::ReleaseWorker() |
60 | 0 | { |
61 | 0 | AssertOnOwningThread(mThread); |
62 | 0 | MOZ_ASSERT(mWorkerPrivate); |
63 | 0 |
|
64 | 0 | ReleaseWorkerInternal(); |
65 | 0 | } |
66 | | |
67 | | WorkerHolder::Behavior |
68 | | WorkerHolder::GetBehavior() const |
69 | 0 | { |
70 | 0 | return mBehavior; |
71 | 0 | } |
72 | | |
73 | | void |
74 | | WorkerHolder::ReleaseWorkerInternal() |
75 | 0 | { |
76 | 0 | AssertOnOwningThread(mThread); |
77 | 0 |
|
78 | 0 | if (mWorkerPrivate) { |
79 | 0 | mWorkerPrivate->AssertIsOnWorkerThread(); |
80 | 0 | mWorkerPrivate->RemoveHolder(this); |
81 | 0 | mWorkerPrivate = nullptr; |
82 | 0 | } |
83 | 0 | } |
84 | | |
85 | | } // dom namespace |
86 | | } // mozilla namespace |