syncer.cc revision 4a5e2dc747d50c653511c68ccb2cfbfb740bd5a7
1c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Copyright (c) 2010 The Chromium Authors. All rights reserved. 2c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// found in the LICENSE file. 4c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 5c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/syncer.h" 6c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 7c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "base/message_loop.h" 8c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "base/time.h" 9731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick#include "chrome/browser/browser_thread.h" 10c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/apply_updates_command.h" 11c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/build_and_process_conflict_sets_command.h" 12c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/build_commit_command.h" 13c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/cleanup_disabled_types_command.h" 143345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick#include "chrome/browser/sync/engine/clear_data_command.h" 15c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/conflict_resolver.h" 16c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/download_updates_command.h" 17c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/get_commit_ids_command.h" 18c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/net/server_connection_manager.h" 19c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/post_commit_message_command.h" 20c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/process_commit_response_command.h" 21c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/process_updates_command.h" 22c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/resolve_conflicts_command.h" 23c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/store_timestamps_command.h" 24c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/syncer_end_command.h" 25c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/syncer_types.h" 26c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/syncer_util.h" 27c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/syncproto.h" 28c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/engine/verify_updates_command.h" 29c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/syncable/directory_manager.h" 30c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/syncable/syncable-inl.h" 31c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "chrome/browser/sync/syncable/syncable.h" 32c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 33c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing base::TimeDelta; 34c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing sync_pb::ClientCommand; 35c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::Blob; 36c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::IS_UNAPPLIED_UPDATE; 37c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::SERVER_CTIME; 38c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::SERVER_IS_DEL; 39c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::SERVER_IS_DIR; 40c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::SERVER_MTIME; 41c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::SERVER_NON_UNIQUE_NAME; 42c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::SERVER_PARENT_ID; 43c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::SERVER_POSITION_IN_PARENT; 44c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::SERVER_SPECIFICS; 45c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::SERVER_VERSION; 46c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::SYNCER; 47c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::ScopedDirLookup; 48c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing syncable::WriteTransaction; 49c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 50c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochnamespace browser_sync { 51c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 52c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing sessions::StatusController; 53c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing sessions::SyncSession; 54c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochusing sessions::ConflictProgress; 55c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 56c407dc5cd9bdc5668497f21b26b09d988ab439deBen MurdochSyncer::Syncer(sessions::SyncSessionContext* context) 57c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch : early_exit_requested_(false), 58c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch max_commit_batch_size_(kDefaultMaxCommitBatchSize), 59c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch resolver_scoper_(context, &resolver_), 60c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch context_(context), 614a5e2dc747d50c653511c68ccb2cfbfb740bd5a7Ben Murdoch updates_source_(sync_pb::GetUpdatesCallerInfo::UNKNOWN, 624a5e2dc747d50c653511c68ccb2cfbfb740bd5a7Ben Murdoch syncable::ModelTypeBitSet()), 63c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch pre_conflict_resolution_closure_(NULL) { 64c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ScopedDirLookup dir(context->directory_manager(), context->account_name()); 65c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // The directory must be good here. 66c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch CHECK(dir.good()); 67c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 68c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 69731df977c0511bca2206b5f333555b1205ff1f43Iain MerrickSyncer::~Syncer() {} 70c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 713345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrickbool Syncer::ExitRequested() { 723345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick AutoLock lock(early_exit_requested_lock_); 733345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick return early_exit_requested_; 743345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick} 753345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick 763345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrickvoid Syncer::RequestEarlyExit() { 773345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick AutoLock lock(early_exit_requested_lock_); 783345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick early_exit_requested_ = true; 793345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick} 803345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick 81c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochbool Syncer::SyncShare(sessions::SyncSession::Delegate* delegate) { 82c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch sessions::SyncSession session(context_, delegate); 83c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return SyncShare(&session); 84c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 85c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 86c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochbool Syncer::SyncShare(sessions::SyncSession* session) { 874a5e2dc747d50c653511c68ccb2cfbfb740bd5a7Ben Murdoch sessions::SyncSourceInfo source = TestAndSetUpdatesSource(); 883345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick session->set_source(source); 894a5e2dc747d50c653511c68ccb2cfbfb740bd5a7Ben Murdoch if (sync_pb::GetUpdatesCallerInfo::CLEAR_PRIVATE_DATA == source.first) { 903345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick SyncShare(session, CLEAR_PRIVATE_DATA, SYNCER_END); 913345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick return false; 923345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick } else { 933345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick // This isn't perfect, as we can end up bundling extensions activity 943345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick // intended for the next session into the current one. We could do a 953345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick // test-and-reset as with the source, but note that also falls short if 963345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick // the commit request fails (e.g. due to lost connection), as we will 973345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick // fall all the way back to the syncer thread main loop in that case, and 983345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick // wind up creating a new session when a connection is established, losing 993345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick // the records set here on the original attempt. This should provide us 1003345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick // with the right data "most of the time", and we're only using this for 1013345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick // analysis purposes, so Law of Large Numbers FTW. 1023345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick context_->extensions_monitor()->GetAndClearRecords( 1033345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick session->mutable_extensions_activity()); 1043345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick SyncShare(session, SYNCER_BEGIN, SYNCER_END); 1053345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick return session->HasMoreToSync(); 1063345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick } 107c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 108c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 109c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochbool Syncer::SyncShare(SyncerStep first_step, SyncerStep last_step, 110c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch sessions::SyncSession::Delegate* delegate) { 111c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch sessions::SyncSession session(context_, delegate); 112c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch SyncShare(&session, first_step, last_step); 113c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return session.HasMoreToSync(); 114c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 115c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 116c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochvoid Syncer::SyncShare(sessions::SyncSession* session, 117c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch const SyncerStep first_step, 118c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch const SyncerStep last_step) { 119c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch SyncerStep current_step = first_step; 120c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 121c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch SyncerStep next_step = current_step; 122c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch while (!ExitRequested()) { 123c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch switch (current_step) { 124c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case SYNCER_BEGIN: 125731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Syncer Begin"; 126c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = CLEANUP_DISABLED_TYPES; 127c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 128c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case CLEANUP_DISABLED_TYPES: { 129731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Cleaning up disabled types"; 130c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch CleanupDisabledTypesCommand cleanup; 131c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch cleanup.Execute(session); 132c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = DOWNLOAD_UPDATES; 133c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 134c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 135c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case DOWNLOAD_UPDATES: { 136731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Downloading Updates"; 137c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch DownloadUpdatesCommand download_updates; 138c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch download_updates.Execute(session); 139c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = PROCESS_CLIENT_COMMAND; 140c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 141c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 142c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case PROCESS_CLIENT_COMMAND: { 143731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Processing Client Command"; 144c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ProcessClientCommand(session); 145c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = VERIFY_UPDATES; 146c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 147c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 148c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case VERIFY_UPDATES: { 149731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Verifying Updates"; 150c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch VerifyUpdatesCommand verify_updates; 151c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch verify_updates.Execute(session); 152c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = PROCESS_UPDATES; 153c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 154c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 155c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case PROCESS_UPDATES: { 1564a5e2dc747d50c653511c68ccb2cfbfb740bd5a7Ben Murdoch VLOG(1) << "Processing Updates"; 157c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ProcessUpdatesCommand process_updates; 158c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch process_updates.Execute(session); 159c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = STORE_TIMESTAMPS; 160c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 161c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 162c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case STORE_TIMESTAMPS: { 163731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Storing timestamps"; 164c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch StoreTimestampsCommand store_timestamps; 165c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch store_timestamps.Execute(session); 166c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // We should download all of the updates before attempting to process 167c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // them. 168c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (session->status_controller()->ServerSaysNothingMoreToDownload() || 169c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch !session->status_controller()->download_updates_succeeded()) { 170c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = APPLY_UPDATES; 171c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } else { 172c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = DOWNLOAD_UPDATES; 173c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 174c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 175c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 176c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case APPLY_UPDATES: { 177731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Applying Updates"; 178c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ApplyUpdatesCommand apply_updates; 179c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch apply_updates.Execute(session); 180c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = BUILD_COMMIT_REQUEST; 181c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 182c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 183c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // These two steps are combined since they are executed within the same 184c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // write transaction. 185c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case BUILD_COMMIT_REQUEST: { 186c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch session->status_controller()->set_syncing(true); 187c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 188731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Processing Commit Request"; 189c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ScopedDirLookup dir(context_->directory_manager(), 190c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch context_->account_name()); 191c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (!dir.good()) { 192c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch LOG(ERROR) << "Scoped dir lookup failed!"; 193c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return; 194c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 195c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch WriteTransaction trans(dir, SYNCER, __FILE__, __LINE__); 196c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch sessions::ScopedSetSessionWriteTransaction set_trans(session, &trans); 197c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 198731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Getting the Commit IDs"; 199c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GetCommitIdsCommand get_commit_ids_command(max_commit_batch_size_); 200c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch get_commit_ids_command.Execute(session); 201c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 202c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (!session->status_controller()->commit_ids().empty()) { 203731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Building a commit message"; 204c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch BuildCommitCommand build_commit_command; 205c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch build_commit_command.Execute(session); 206c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 207c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = POST_COMMIT_MESSAGE; 208c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } else { 209c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = BUILD_AND_PROCESS_CONFLICT_SETS; 210c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 211c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 212c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 213c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 214c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case POST_COMMIT_MESSAGE: { 215731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Posting a commit request"; 216c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch PostCommitMessageCommand post_commit_command; 217c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch post_commit_command.Execute(session); 218c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = PROCESS_COMMIT_RESPONSE; 219c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 220c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 221c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case PROCESS_COMMIT_RESPONSE: { 222731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Processing the commit response"; 223c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch session->status_controller()->reset_num_conflicting_commits(); 224c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ProcessCommitResponseCommand process_response_command; 225c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch process_response_command.Execute(session); 226c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = BUILD_AND_PROCESS_CONFLICT_SETS; 227c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 228c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 229c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case BUILD_AND_PROCESS_CONFLICT_SETS: { 230731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Building and Processing Conflict Sets"; 231c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch BuildAndProcessConflictSetsCommand build_process_conflict_sets; 232c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch build_process_conflict_sets.Execute(session); 233c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (session->status_controller()->conflict_sets_built()) 234c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = SYNCER_END; 235c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch else 236c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = RESOLVE_CONFLICTS; 237c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 238c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 239c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case RESOLVE_CONFLICTS: { 240731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Resolving Conflicts"; 241c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 242c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Trigger the pre_conflict_resolution_closure_, which is a testing 243c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // hook for the unit tests, if it is non-NULL. 244c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (pre_conflict_resolution_closure_) { 245c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch pre_conflict_resolution_closure_->Run(); 246c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 247c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 248c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch StatusController* status = session->status_controller(); 249c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch status->reset_conflicts_resolved(); 250c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ResolveConflictsCommand resolve_conflicts_command; 251c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch resolve_conflicts_command.Execute(session); 252c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (status->HasConflictingUpdates()) 253c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = APPLY_UPDATES_TO_RESOLVE_CONFLICTS; 254c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch else 255c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = SYNCER_END; 256c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 257c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 258c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case APPLY_UPDATES_TO_RESOLVE_CONFLICTS: { 259c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch StatusController* status = session->status_controller(); 260731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Applying updates to resolve conflicts"; 261c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ApplyUpdatesCommand apply_updates; 262c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch int before_conflicting_updates = status->TotalNumConflictingItems(); 263c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch apply_updates.Execute(session); 264c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch int after_conflicting_updates = status->TotalNumConflictingItems(); 265c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch status->update_conflicts_resolved(before_conflicting_updates > 266c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch after_conflicting_updates); 267c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (status->conflicts_resolved()) 268c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = RESOLVE_CONFLICTS; 269c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch else 270c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch next_step = SYNCER_END; 271c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 272c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 2733345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick case CLEAR_PRIVATE_DATA: { 274731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Clear Private Data"; 2753345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick ClearDataCommand clear_data_command; 2763345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick clear_data_command.Execute(session); 2773345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick next_step = SYNCER_END; 2783345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick } 279c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case SYNCER_END: { 280731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick VLOG(1) << "Syncer End"; 281c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch SyncerEndCommand syncer_end_command; 282c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // This will set "syncing" to false, and send out a notification. 283c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch syncer_end_command.Execute(session); 284c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch goto post_while; 285c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 286c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch default: 287c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch LOG(ERROR) << "Unknown command: " << current_step; 288c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 289c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (last_step == current_step) 290c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 291c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch current_step = next_step; 292c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 293c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch post_while: 294c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return; 295c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 296c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 297c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochvoid Syncer::ProcessClientCommand(sessions::SyncSession* session) { 298c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch const ClientToServerResponse& response = 299c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch session->status_controller()->updates_response(); 300c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (!response.has_client_command()) 301c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return; 302c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch const ClientCommand& command = response.client_command(); 303c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 304c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // The server limits the number of items a client can commit in one batch. 305c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (command.has_max_commit_batch_size()) 306c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch max_commit_batch_size_ = command.max_commit_batch_size(); 307c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (command.has_set_sync_long_poll_interval()) { 308c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch session->delegate()->OnReceivedLongPollIntervalUpdate( 309c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch TimeDelta::FromSeconds(command.set_sync_long_poll_interval())); 310c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 311c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (command.has_set_sync_poll_interval()) { 312c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch session->delegate()->OnReceivedShortPollIntervalUpdate( 313c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch TimeDelta::FromSeconds(command.set_sync_poll_interval())); 314c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 315c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 316c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 317c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochvoid CopyServerFields(syncable::Entry* src, syncable::MutableEntry* dest) { 318c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch dest->Put(SERVER_NON_UNIQUE_NAME, src->Get(SERVER_NON_UNIQUE_NAME)); 319c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch dest->Put(SERVER_PARENT_ID, src->Get(SERVER_PARENT_ID)); 320c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch dest->Put(SERVER_MTIME, src->Get(SERVER_MTIME)); 321c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch dest->Put(SERVER_CTIME, src->Get(SERVER_CTIME)); 322c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch dest->Put(SERVER_VERSION, src->Get(SERVER_VERSION)); 323c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch dest->Put(SERVER_IS_DIR, src->Get(SERVER_IS_DIR)); 324c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch dest->Put(SERVER_IS_DEL, src->Get(SERVER_IS_DEL)); 325c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch dest->Put(IS_UNAPPLIED_UPDATE, src->Get(IS_UNAPPLIED_UPDATE)); 326c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch dest->Put(SERVER_SPECIFICS, src->Get(SERVER_SPECIFICS)); 327c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch dest->Put(SERVER_POSITION_IN_PARENT, src->Get(SERVER_POSITION_IN_PARENT)); 328c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 329c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 330c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochvoid ClearServerData(syncable::MutableEntry* entry) { 331c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch entry->Put(SERVER_NON_UNIQUE_NAME, ""); 332c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch entry->Put(SERVER_PARENT_ID, syncable::kNullId); 333c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch entry->Put(SERVER_MTIME, 0); 334c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch entry->Put(SERVER_CTIME, 0); 335c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch entry->Put(SERVER_VERSION, 0); 336c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch entry->Put(SERVER_IS_DIR, false); 337c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch entry->Put(SERVER_IS_DEL, false); 338c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch entry->Put(IS_UNAPPLIED_UPDATE, false); 339c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch entry->Put(SERVER_SPECIFICS, sync_pb::EntitySpecifics::default_instance()); 340c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch entry->Put(SERVER_POSITION_IN_PARENT, 0); 341c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 342c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 343c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} // namespace browser_sync 344