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/**
* Copyright (C) 2014 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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kReplication
#include "mongo/platform/basic.h"
#include "mongo/db/repl/minvalid.h"
#include "mongo/bson/optime.h"
#include "mongo/db/concurrency/d_concurrency.h"
#include "mongo/db/dbhelpers.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/operation_context.h"
#include "mongo/db/operation_context_impl.h"
namespace mongo {
namespace repl {
namespace {
const char* initialSyncFlagString = "doingInitialSync";
const BSONObj initialSyncFlag(BSON(initialSyncFlagString << true));
const char* minvalidNS = "local.replset.minvalid";
} // namespace
void clearInitialSyncFlag(OperationContext* txn) {
Lock::DBLock lk(txn->lockState(), "local", newlm::MODE_X);
WriteUnitOfWork wunit(txn);
Helpers::putSingleton(txn, minvalidNS, BSON("$unset" << initialSyncFlag));
wunit.commit();
}
void setInitialSyncFlag(OperationContext* txn) {
Lock::DBLock lk(txn->lockState(), "local", newlm::MODE_X);
WriteUnitOfWork wunit(txn);
Helpers::putSingleton(txn, minvalidNS, BSON("$set" << initialSyncFlag));
wunit.commit();
}
bool getInitialSyncFlag() {
OperationContextImpl txn; // XXX?
Lock::DBRead lk (txn.lockState(), "local");
BSONObj mv;
if (Helpers::getSingleton(&txn, minvalidNS, mv)) {
return mv[initialSyncFlagString].trueValue();
}
return false;
}
void setMinValid(OperationContext* ctx, OpTime ts) {
Lock::DBLock lk(ctx->lockState(), "local", newlm::MODE_X);
WriteUnitOfWork wunit(ctx);
Helpers::putSingleton(ctx, minvalidNS, BSON("$set" << BSON("ts" << ts)));
wunit.commit();
}
OpTime getMinValid(OperationContext* txn) {
Lock::DBRead lk(txn->lockState(), "local.replset.minvalid");
BSONObj mv;
if (Helpers::getSingleton(txn, minvalidNS, mv)) {
return mv["ts"]._opTime();
}
return OpTime();
}
}
}
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