/src/mozilla-central/dom/media/systemservices/MediaSystemResourceClient.cpp
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1 | | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* vim:set ts=2 sw=2 sts=2 et cindent: */ |
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 file, |
5 | | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
6 | | |
7 | | #include "mozilla/Monitor.h" |
8 | | #include "mozilla/ReentrantMonitor.h" |
9 | | |
10 | | #include "MediaSystemResourceClient.h" |
11 | | |
12 | | namespace mozilla { |
13 | | |
14 | | Atomic<uint32_t> MediaSystemResourceClient::sSerialCounter(0); |
15 | | |
16 | | MediaSystemResourceClient::MediaSystemResourceClient(MediaSystemResourceType aReourceType) |
17 | | : mResourceType(aReourceType) |
18 | | , mId(++sSerialCounter) |
19 | | , mListener(nullptr) |
20 | | , mResourceState(RESOURCE_STATE_START) |
21 | | , mIsSync(false) |
22 | | , mAcquireSyncWaitMonitor(nullptr) |
23 | | , mAcquireSyncWaitDone(nullptr) |
24 | 0 | { |
25 | 0 | mManager = MediaSystemResourceManager::Get(); |
26 | 0 | if (mManager) { |
27 | 0 | mManager->Register(this); |
28 | 0 | } |
29 | 0 | } |
30 | | |
31 | | MediaSystemResourceClient::~MediaSystemResourceClient() |
32 | 0 | { |
33 | 0 | ReleaseResource(); |
34 | 0 | if (mManager) { |
35 | 0 | mManager->Unregister(this); |
36 | 0 | } |
37 | 0 | } |
38 | | |
39 | | bool |
40 | | MediaSystemResourceClient::SetListener(MediaSystemResourceReservationListener* aListener) |
41 | 0 | { |
42 | 0 | if (!mManager) { |
43 | 0 | return false; |
44 | 0 | } |
45 | 0 | return mManager->SetListener(this, aListener); |
46 | 0 | } |
47 | | |
48 | | void |
49 | | MediaSystemResourceClient::Acquire() |
50 | 0 | { |
51 | 0 | if (!mManager) { |
52 | 0 | return; |
53 | 0 | } |
54 | 0 | mManager->Acquire(this); |
55 | 0 | } |
56 | | |
57 | | bool |
58 | | MediaSystemResourceClient::AcquireSyncNoWait() |
59 | 0 | { |
60 | 0 | if (!mManager) { |
61 | 0 | return false; |
62 | 0 | } |
63 | 0 | return mManager->AcquireSyncNoWait(this); |
64 | 0 | } |
65 | | |
66 | | void |
67 | | MediaSystemResourceClient::ReleaseResource() |
68 | 0 | { |
69 | 0 | if (!mManager) { |
70 | 0 | return; |
71 | 0 | } |
72 | 0 | mManager->ReleaseResource(this); |
73 | 0 | } |
74 | | |
75 | | } // namespace mozilla |