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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "mojo/application/public/cpp/app_lifetime_helper.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/message_loop/message_loop.h" | |
| 9 #include "mojo/application/public/cpp/application_impl.h" | |
| 10 | |
| 11 namespace mojo { | |
| 12 | |
| 13 AppRefCount::AppRefCount( | |
| 14 AppLifetimeHelper* app_lifetime_helper, | |
| 15 scoped_refptr<base::SingleThreadTaskRunner> app_task_runner) | |
| 16 : app_lifetime_helper_(app_lifetime_helper), | |
| 17 app_task_runner_(app_task_runner) { | |
| 18 } | |
| 19 | |
| 20 AppRefCount::~AppRefCount() { | |
| 21 #ifndef NDEBUG | |
| 22 // Ensure that this object is used on only one thread at a time, or else there | |
| 23 // could be races where the object is being reset on one thread and cloned on | |
| 24 // another. | |
| 25 if (clone_task_runner_) { | |
| 26 DCHECK(clone_task_runner_->BelongsToCurrentThread()); | |
| 27 } | |
| 28 #endif | |
| 29 | |
| 30 if (app_task_runner_->BelongsToCurrentThread()) { | |
| 31 app_lifetime_helper_->Release(); | |
| 32 return; | |
| 33 } | |
| 34 | |
| 35 app_task_runner_->PostTask( | |
| 36 FROM_HERE, | |
| 37 base::Bind(&AppLifetimeHelper::Release, | |
| 38 base::Unretained(app_lifetime_helper_))); | |
| 39 } | |
| 40 | |
| 41 scoped_ptr<AppRefCount> AppRefCount::Clone() { | |
| 42 if (app_task_runner_->BelongsToCurrentThread()) { | |
| 43 app_lifetime_helper_->AddRef(); | |
| 44 } else { | |
| 45 app_task_runner_->PostTask( | |
| 46 FROM_HERE, | |
| 47 base::Bind(&AppLifetimeHelper::AddRef, | |
| 48 base::Unretained(app_lifetime_helper_))); | |
| 49 } | |
| 50 | |
| 51 #ifndef NDEBUG | |
| 52 // Ensure that this object is used on only one thread at a time, or else there | |
| 53 // could be races where the object is being reset on one thread and cloned on | |
| 54 // another. | |
| 55 if (clone_task_runner_) { | |
| 56 DCHECK(clone_task_runner_->BelongsToCurrentThread()); | |
| 57 } else { | |
| 58 clone_task_runner_ = base::MessageLoop::current()->task_runner(); | |
| 59 } | |
| 60 #endif | |
| 61 | |
| 62 return make_scoped_ptr(new AppRefCount( | |
| 63 app_lifetime_helper_, app_task_runner_)); | |
| 64 } | |
| 65 | |
| 66 AppLifetimeHelper::AppLifetimeHelper(ApplicationImpl* app) | |
| 67 : app_(app), ref_count_(0) { | |
| 68 } | |
| 69 | |
| 70 AppLifetimeHelper::~AppLifetimeHelper() { | |
| 71 } | |
| 72 | |
| 73 scoped_ptr<AppRefCount> AppLifetimeHelper::CreateAppRefCount() { | |
| 74 AddRef(); | |
| 75 return make_scoped_ptr(new AppRefCount( | |
| 76 this, base::MessageLoop::current()->task_runner())); | |
| 77 } | |
| 78 | |
| 79 void AppLifetimeHelper::AddRef() { | |
| 80 ref_count_++; | |
| 81 } | |
| 82 | |
| 83 void AppLifetimeHelper::Release() { | |
| 84 if (!--ref_count_) { | |
| 85 if (app_) | |
| 86 app_->Quit(); | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 void AppLifetimeHelper::OnQuit() { | |
| 91 app_ = nullptr; | |
| 92 } | |
| 93 | |
| 94 } // namespace mojo | |
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Chromium Code Reviews
Issue 1565343003:
Move mojo/application/public -> mojo/shell/public (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@fetcher