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/**
* Copyright (C) 2018 MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/server_transactions_metrics.h"
#include "mongo/db/commands/server_status.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/retryable_writes_stats.h"
#include "mongo/db/service_context.h"
#include "mongo/db/transactions_stats_gen.h"
namespace mongo {
namespace {
const auto ServerTransactionsMetricsDecoration =
ServiceContext::declareDecoration<ServerTransactionsMetrics>();
} // namespace
ServerTransactionsMetrics* ServerTransactionsMetrics::get(ServiceContext* service) {
return &ServerTransactionsMetricsDecoration(service);
}
ServerTransactionsMetrics* ServerTransactionsMetrics::get(OperationContext* opCtx) {
return get(opCtx->getServiceContext());
}
unsigned long long ServerTransactionsMetrics::getTotalStarted() const {
return _totalStarted.load();
}
void ServerTransactionsMetrics::incrementTotalStarted() {
_totalStarted.fetchAndAdd(1);
}
unsigned long long ServerTransactionsMetrics::getTotalAborted() const {
return _totalAborted.load();
}
void ServerTransactionsMetrics::incrementTotalAborted() {
_totalAborted.fetchAndAdd(1);
}
unsigned long long ServerTransactionsMetrics::getTotalCommitted() const {
return _totalCommitted.load();
}
void ServerTransactionsMetrics::incrementTotalCommitted() {
_totalCommitted.fetchAndAdd(1);
}
void ServerTransactionsMetrics::updateStats(TransactionsStats* stats) {
// This is a dummy function until we start tracking global transactions metrics.
}
class TransactionsSSS : public ServerStatusSection {
public:
TransactionsSSS() : ServerStatusSection("transactions") {}
virtual ~TransactionsSSS() {}
virtual bool includeByDefault() const {
return true;
}
virtual BSONObj generateSection(OperationContext* opCtx,
const BSONElement& configElement) const {
TransactionsStats stats;
// Retryable writes and multi-document transactions metrics are both included in the same
// serverStatus section because both utilize similar internal machinery for tracking their
// lifecycle within a session. Both are assigned transaction numbers, and so both are often
// referred to as “transactions”.
RetryableWritesStats::get(opCtx)->updateStats(&stats);
ServerTransactionsMetrics::get(opCtx)->updateStats(&stats);
return stats.toBSON();
}
} transactionsSSS;
} // namespace mongo
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