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/**
* Copyright (C) 2021-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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/operation_context.h"
#include "mongo/db/storage/record_store.h"
#include "mongo/db/storage/storage_options.h"
namespace mongo {
namespace {
void validateWriteAllowed(OperationContext* opCtx) {
uassert(ErrorCodes::IllegalOperation,
"Cannot execute a write operation in read-only mode",
!opCtx->readOnly());
}
} // namespace
void RecordStore::deleteRecord(OperationContext* opCtx, const RecordId& dl) {
validateWriteAllowed(opCtx);
doDeleteRecord(opCtx, dl);
}
Status RecordStore::insertRecords(OperationContext* opCtx,
std::vector<Record>* inOutRecords,
const std::vector<Timestamp>& timestamps) {
validateWriteAllowed(opCtx);
return doInsertRecords(opCtx, inOutRecords, timestamps);
}
Status RecordStore::updateRecord(OperationContext* opCtx,
const RecordId& recordId,
const char* data,
int len) {
validateWriteAllowed(opCtx);
return doUpdateRecord(opCtx, recordId, data, len);
}
StatusWith<RecordData> RecordStore::updateWithDamages(OperationContext* opCtx,
const RecordId& loc,
const RecordData& oldRec,
const char* damageSource,
const mutablebson::DamageVector& damages) {
validateWriteAllowed(opCtx);
return doUpdateWithDamages(opCtx, loc, oldRec, damageSource, damages);
}
Status RecordStore::truncate(OperationContext* opCtx) {
validateWriteAllowed(opCtx);
return doTruncate(opCtx);
}
void RecordStore::cappedTruncateAfter(OperationContext* opCtx, RecordId end, bool inclusive) {
validateWriteAllowed(opCtx);
doCappedTruncateAfter(opCtx, end, inclusive);
}
Status RecordStore::compact(OperationContext* opCtx) {
validateWriteAllowed(opCtx);
return doCompact(opCtx);
}
Status RecordStore::oplogDiskLocRegister(OperationContext* opCtx,
const Timestamp& opTime,
bool orderedCommit) {
// Callers should be updating visibility as part of a write operation. We want to ensure that
// we never get here while holding an uninterruptible, read-ticketed lock. That would indicate
// that we are operating with the wrong global lock semantics, and either hold too weak a lock
// (e.g. IS) or that we upgraded in a way we shouldn't (e.g. IS -> IX).
invariant(opCtx->lockState()->isNoop() || !opCtx->lockState()->hasReadTicket() ||
!opCtx->lockState()->uninterruptibleLocksRequested());
return oplogDiskLocRegisterImpl(opCtx, opTime, orderedCommit);
}
void RecordStore::waitForAllEarlierOplogWritesToBeVisible(OperationContext* opCtx) const {
// Callers are waiting for other operations to finish updating visibility. We want to ensure
// that we never get here while holding an uninterruptible, write-ticketed lock. That could
// indicate we are holding a stronger lock than we need to, and that we could actually
// contribute to ticket-exhaustion. That could prevent the write we are waiting on from
// acquiring the lock it needs to update the oplog visibility.
invariant(opCtx->lockState()->isNoop() || !opCtx->lockState()->hasWriteTicket() ||
!opCtx->lockState()->uninterruptibleLocksRequested());
waitForAllEarlierOplogWritesToBeVisibleImpl(opCtx);
}
} // namespace mongo
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