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// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "sync/internal_api/public/write_transaction.h"
#include "sync/syncable/directory.h"
#include "sync/syncable/syncable_write_transaction.h"
namespace syncer {
//////////////////////////////////////////////////////////////////////////
// WriteTransaction member definitions
WriteTransaction::WriteTransaction(const tracked_objects::Location& from_here,
UserShare* share)
: BaseTransaction(share),
transaction_(NULL) {
transaction_ = new syncable::WriteTransaction(from_here, syncable::SYNCAPI,
share->directory.get());
}
WriteTransaction::WriteTransaction(const tracked_objects::Location& from_here,
UserShare* share,
int64* new_model_version)
: BaseTransaction(share),
transaction_(NULL) {
transaction_ = new syncable::WriteTransaction(from_here,
share->directory.get(),
new_model_version);
}
WriteTransaction::~WriteTransaction() {
delete transaction_;
}
syncable::BaseTransaction* WriteTransaction::GetWrappedTrans() const {
return transaction_;
}
void WriteTransaction::SetDataTypeContext(
ModelType type,
syncer::SyncChangeProcessor::ContextRefreshStatus refresh_status,
const std::string& context) {
DCHECK(ProtocolTypes().Has(type));
int field_number = GetSpecificsFieldNumberFromModelType(type);
sync_pb::DataTypeContext local_context;
GetDirectory()->GetDataTypeContext(transaction_,
type,
&local_context);
if (local_context.context() == context)
return;
if (!local_context.has_data_type_id())
local_context.set_data_type_id(field_number);
DCHECK_EQ(field_number, local_context.data_type_id());
DCHECK_GE(local_context.version(), 0);
local_context.set_version(local_context.version() + 1);
local_context.set_context(context);
GetDirectory()->SetDataTypeContext(transaction_,
type,
local_context);
if (refresh_status == syncer::SyncChangeProcessor::REFRESH_NEEDED) {
DVLOG(1) << "Forcing refresh of type " << ModelTypeToString(type);
// Clear the progress token from the progress markers. Preserve all other
// state, in case a GC directive was present.
sync_pb::DataTypeProgressMarker progress_marker;
GetDirectory()->GetDownloadProgress(type, &progress_marker);
progress_marker.clear_token();
GetDirectory()->SetDownloadProgress(type, progress_marker);
// Go through and reset the versions for all the synced entities of this
// data type.
GetDirectory()->ResetVersionsForType(transaction_, type);
}
// Note that it's possible for a GetUpdatesResponse that arrives immediately
// after the context update to override the cleared progress markers.
// TODO(zea): add a flag in the directory to prevent this from happening.
// See crbug.com/360280
}
} // namespace syncer
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