src/kudu/client/session-internal.cc

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#include "kudu/client/session-internal.h"

#include "kudu/client/batcher.h"
#include "kudu/client/error_collector.h"
#include "kudu/client/shared_ptr.h"

namespace kudu {

namespace client {

using internal::Batcher;
using internal::ErrorCollector;

using sp::shared_ptr;

KuduSession::Data::Data(shared_ptr<KuduClient> client)
    : client_(std::move(client)),
      error_collector_(new ErrorCollector()),
      flush_mode_(AUTO_FLUSH_SYNC),
      external_consistency_mode_(CLIENT_PROPAGATED),
      timeout_ms_(-1) {
}

KuduSession::Data::~Data() {
}

void KuduSession::Data::Init(const shared_ptr<KuduSession>& session) {
  lock_guard<simple_spinlock> l(&lock_);
  CHECK(!batcher_);
  NewBatcher(session, NULL);
}

void KuduSession::Data::NewBatcher(const shared_ptr<KuduSession>& session,
                                   scoped_refptr<Batcher>* old_batcher) {
  DCHECK(lock_.is_locked());

  scoped_refptr<Batcher> batcher(
    new Batcher(client_.get(), error_collector_.get(), session,
                external_consistency_mode_));
  if (timeout_ms_ != -1) {
    batcher->SetTimeoutMillis(timeout_ms_);
  }
  batcher.swap(batcher_);

  if (old_batcher) {
    old_batcher->swap(batcher);
  }
}

void KuduSession::Data::FlushFinished(Batcher* batcher) {
  lock_guard<simple_spinlock> l(&lock_);
  CHECK_EQ(flushed_batchers_.erase(batcher), 1);
}

Status KuduSession::Data::Close(bool force) {
  if (batcher_->HasPendingOperations() && !force) {
    return Status::IllegalState("Could not close. There are pending operations.");
  }
  batcher_->Abort();
  return Status::OK();
}

} // namespace client
} // namespace kudu