blob: 211e2172407d05c03d0ca6898e01455c2f083bd0 [file] [log] [blame]
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#include "utilities/transactions/write_prepared_txn.h"
#include <map>
#include "db/column_family.h"
#include "db/db_impl.h"
#include "rocksdb/db.h"
#include "rocksdb/status.h"
#include "rocksdb/utilities/transaction_db.h"
#include "utilities/transactions/pessimistic_transaction.h"
#include "utilities/transactions/pessimistic_transaction_db.h"
namespace rocksdb {
struct WriteOptions;
WritePreparedTxn::WritePreparedTxn(WritePreparedTxnDB* txn_db,
const WriteOptions& write_options,
const TransactionOptions& txn_options)
: PessimisticTransaction(txn_db, write_options, txn_options),
wpt_db_(txn_db) {
Status WritePreparedTxn::CommitBatch(WriteBatch* /* unused */) {
// TODO(myabandeh) Implement this
throw std::runtime_error("CommitBatch not Implemented");
return Status::OK();
Status WritePreparedTxn::PrepareInternal() {
WriteOptions write_options = write_options_;
write_options.disableWAL = false;
WriteBatchInternal::MarkEndPrepare(GetWriteBatch()->GetWriteBatch(), name_);
const bool disable_memtable = true;
uint64_t seq_used;
Status s =
db_impl_->WriteImpl(write_options, GetWriteBatch()->GetWriteBatch(),
/*callback*/ nullptr, &log_number_, /*log ref*/ 0,
!disable_memtable, &seq_used);
prepare_seq_ = seq_used;
return s;
Status WritePreparedTxn::CommitWithoutPrepareInternal() {
// TODO(myabandeh) Implement this
throw std::runtime_error("Commit not Implemented");
return Status::OK();
Status WritePreparedTxn::CommitInternal() {
// We take the commit-time batch and append the Commit marker.
// The Memtable will ignore the Commit marker in non-recovery mode
WriteBatch* working_batch = GetCommitTimeWriteBatch();
// TODO(myabandeh): prevent the users from writing to txn after the prepare
// phase
assert(working_batch->Count() == 0);
WriteBatchInternal::MarkCommit(working_batch, name_);
// any operations appended to this working_batch will be ignored from WAL
const bool disable_memtable = true;
uint64_t seq_used;
auto s = db_impl_->WriteImpl(write_options_, working_batch, nullptr, nullptr,
log_number_, disable_memtable, &seq_used);
uint64_t& commit_seq = seq_used;
wpt_db_->AddCommitted(prepare_seq_, commit_seq);
return s;
Status WritePreparedTxn::Rollback() {
// TODO(myabandeh) Implement this
throw std::runtime_error("Rollback not Implemented");
return Status::OK();
} // namespace rocksdb
#endif // ROCKSDB_LITE