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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome/browser/sync/glue/ui_model_worker.h" | 5 #include "chrome/browser/sync/glue/ui_model_worker.h" |
| 6 | 6 |
| 7 #include "base/message_loop.h" | 7 #include "base/message_loop.h" |
| 8 #include "base/third_party/dynamic_annotations/dynamic_annotations.h" | 8 #include "base/third_party/dynamic_annotations/dynamic_annotations.h" |
| 9 #include "base/waitable_event.h" | 9 #include "base/waitable_event.h" |
| 10 | 10 |
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| 34 // The task is owned by the message loop as per usual. | 34 // The task is owned by the message loop as per usual. |
| 35 AutoLock lock(lock_); | 35 AutoLock lock(lock_); |
| 36 DCHECK(!pending_work_); | 36 DCHECK(!pending_work_); |
| 37 pending_work_ = new CallDoWorkAndSignalTask(work, &work_done, this); | 37 pending_work_ = new CallDoWorkAndSignalTask(work, &work_done, this); |
| 38 ui_loop_->PostTask(FROM_HERE, pending_work_); | 38 ui_loop_->PostTask(FROM_HERE, pending_work_); |
| 39 } | 39 } |
| 40 syncapi_event_.Signal(); // Notify that the syncapi produced work for us. | 40 syncapi_event_.Signal(); // Notify that the syncapi produced work for us. |
| 41 work_done.Wait(); | 41 work_done.Wait(); |
| 42 } | 42 } |
| 43 | 43 |
| 44 UIModelWorker::UIModelWorker(MessageLoop* ui_loop) |
| 45 : state_(WORKING), |
| 46 pending_work_(NULL), |
| 47 syncapi_has_shutdown_(false), |
| 48 ui_loop_(ui_loop), |
| 49 syncapi_event_(&lock_) { |
| 50 } |
| 51 |
| 44 UIModelWorker::~UIModelWorker() { | 52 UIModelWorker::~UIModelWorker() { |
| 45 DCHECK_EQ(state_, STOPPED); | 53 DCHECK_EQ(state_, STOPPED); |
| 46 } | 54 } |
| 47 | 55 |
| 48 void UIModelWorker::OnSyncerShutdownComplete() { | 56 void UIModelWorker::OnSyncerShutdownComplete() { |
| 49 AutoLock lock(lock_); | 57 AutoLock lock(lock_); |
| 50 // The SyncerThread has terminated and we are no longer needed by syncapi. | 58 // The SyncerThread has terminated and we are no longer needed by syncapi. |
| 51 // The UI loop initiated shutdown and is (or will be) waiting in Stop(). | 59 // The UI loop initiated shutdown and is (or will be) waiting in Stop(). |
| 52 // We could either be WORKING or RUNNING_MANUAL_SHUTDOWN_PUMP, depending | 60 // We could either be WORKING or RUNNING_MANUAL_SHUTDOWN_PUMP, depending |
| 53 // on where we timeslice the UI thread in Stop; but we can't be STOPPED, | 61 // on where we timeslice the UI thread in Stop; but we can't be STOPPED, |
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| 103 // get run twice. | 111 // get run twice. |
| 104 work_ = NULL; | 112 work_ = NULL; |
| 105 | 113 |
| 106 // Notify the UIModelWorker that scheduled us that we have run | 114 // Notify the UIModelWorker that scheduled us that we have run |
| 107 // successfully. | 115 // successfully. |
| 108 scheduler_->OnTaskCompleted(); | 116 scheduler_->OnTaskCompleted(); |
| 109 work_done_->Signal(); // Unblock the syncer thread that scheduled us. | 117 work_done_->Signal(); // Unblock the syncer thread that scheduled us. |
| 110 } | 118 } |
| 111 | 119 |
| 112 } // namespace browser_sync | 120 } // namespace browser_sync |
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