12a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Copyright 2012 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) 52a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "sync/syncable/syncable_base_transaction.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/debug/trace_event.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "sync/syncable/directory.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace syncer { 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace syncable { 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 13424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)// static 14424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)Id BaseTransaction::root_id() { 15424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) return Id(); 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 18424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)Directory* BaseTransaction::directory() const { 19424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) return directory_; 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void BaseTransaction::Lock() { 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) TRACE_EVENT2("sync_lock_contention", "AcquireLock", 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "src_file", from_here_.file_name(), 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "src_func", from_here_.function_name()); 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) directory_->kernel_->transaction_mutex.Acquire(); 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void BaseTransaction::Unlock() { 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) directory_->kernel_->transaction_mutex.Release(); 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void BaseTransaction::OnUnrecoverableError( 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const tracked_objects::Location& location, 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& message) { 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unrecoverable_error_set_ = true; 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unrecoverable_error_location_ = location; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unrecoverable_error_msg_ = message; 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Note: We dont call the Directory's OnUnrecoverableError method right 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // away. Instead we wait to unwind the stack and in the destructor of the 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // transaction we would call the OnUnrecoverableError method. 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) directory()->ReportUnrecoverableError(); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool BaseTransaction::unrecoverable_error_set() const { 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return unrecoverable_error_set_; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void BaseTransaction::HandleUnrecoverableErrorIfSet() { 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (unrecoverable_error_set_) { 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) directory()->OnUnrecoverableError(this, 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unrecoverable_error_location_, 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unrecoverable_error_msg_); 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)BaseTransaction::BaseTransaction(const tracked_objects::Location& from_here, 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const char* name, 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WriterTag writer, 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Directory* directory) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : from_here_(from_here), name_(name), writer_(writer), 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) directory_(directory), unrecoverable_error_set_(false) { 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(lipalani): Don't issue a good transaction if the directory has 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // unrecoverable error set. And the callers have to check trans.good before 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // proceeding. 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) TRACE_EVENT_BEGIN2("sync", name_, 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "src_file", from_here_.file_name(), 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "src_func", from_here_.function_name()); 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)BaseTransaction::~BaseTransaction() { 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) TRACE_EVENT_END0("sync", name_); 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace syncable 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace syncer 80