190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)// Copyright 2013 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 52385ea399aae016c0806a4f9ef3c9cfe3d2a39dfBen Murdoch#include "chrome/browser/sync_file_system/local/syncable_file_operation_runner.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <algorithm> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <functional> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/callback.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/stl_util.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1303b57e008b61dfcb1fbad3aea950ae0e001748b0Torne (Richard Coles)using storage::FileSystemURL; 142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace sync_file_system { 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// SyncableFileOperationRunner::Task ------------------------------------------- 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void SyncableFileOperationRunner::Task::CancelAndDelete( 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SyncableFileOperationRunner::Task* task) { 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) task->Cancel(); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete task; 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool SyncableFileOperationRunner::Task::IsRunnable( 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LocalFileSyncStatus* status) const { 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < target_paths().size(); ++i) { 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!status->IsWritable(target_paths()[i])) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void SyncableFileOperationRunner::Task::Start(LocalFileSyncStatus* status) { 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < target_paths().size(); ++i) { 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(status->IsWritable(target_paths()[i])); 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) status->StartWriting(target_paths()[i]); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Run(); 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// SyncableFileOperationRunner ------------------------------------------------- 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)SyncableFileOperationRunner::SyncableFileOperationRunner( 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64 max_inflight_tasks, 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LocalFileSyncStatus* sync_status) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : sync_status_(sync_status), 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) max_inflight_tasks_(max_inflight_tasks), 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) num_inflight_tasks_(0) { 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(CalledOnValidThread()); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_status_->AddObserver(this); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)SyncableFileOperationRunner::~SyncableFileOperationRunner() { 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(CalledOnValidThread()); 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for_each(pending_tasks_.begin(), pending_tasks_.end(), 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SyncableFileOperationRunner::Task::CancelAndDelete); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void SyncableFileOperationRunner::OnSyncEnabled(const FileSystemURL& url) { 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void SyncableFileOperationRunner::OnWriteEnabled(const FileSystemURL& url) { 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(CalledOnValidThread()); 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) RunNextRunnableTask(); 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void SyncableFileOperationRunner::PostOperationTask(scoped_ptr<Task> task) { 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(CalledOnValidThread()); 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pending_tasks_.push_back(task.release()); 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) RunNextRunnableTask(); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void SyncableFileOperationRunner::RunNextRunnableTask() { 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(CalledOnValidThread()); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (std::list<Task*>::iterator iter = pending_tasks_.begin(); 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) iter != pending_tasks_.end() && ShouldStartMoreTasks();) { 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if ((*iter)->IsRunnable(sync_status())) { 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++num_inflight_tasks_; 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_GE(num_inflight_tasks_, 1); 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_ptr<Task> task(*iter); 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) pending_tasks_.erase(iter++); 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) task->Start(sync_status()); 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) continue; 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ++iter; 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void SyncableFileOperationRunner::OnOperationCompleted( 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::vector<FileSystemURL>& target_paths) { 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) --num_inflight_tasks_; 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_GE(num_inflight_tasks_, 0); 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < target_paths.size(); ++i) { 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(sync_status()->IsWriting(target_paths[i])); 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sync_status()->EndWriting(target_paths[i]); 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) RunNextRunnableTask(); 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool SyncableFileOperationRunner::ShouldStartMoreTasks() const { 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return num_inflight_tasks_ < max_inflight_tasks_; 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} // namespace sync_file_system 107