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/**
* Copyright (C) 2018-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/curop_failpoint_helpers.h"
#include "mongo/db/curop.h"
namespace mongo {
std::string CurOpFailpointHelpers::updateCurOpFailPointMsg(OperationContext* opCtx,
const std::string& newMsg) {
stdx::lock_guard<Client> lk(*opCtx->getClient());
auto oldMsg = CurOp::get(opCtx)->getFailPointMessage();
CurOp::get(opCtx)->setFailPointMessage_inlock(newMsg.c_str());
return oldMsg;
}
void CurOpFailpointHelpers::waitWhileFailPointEnabled(FailPoint* failPoint,
OperationContext* opCtx,
const std::string& failpointMsg,
const std::function<void()>& whileWaiting,
boost::optional<NamespaceString> nss) {
invariant(failPoint);
failPoint->executeIf(
[&](const BSONObj& data) {
auto origCurOpFailpointMsg = updateCurOpFailPointMsg(opCtx, failpointMsg);
const bool shouldCheckForInterrupt = data["shouldCheckForInterrupt"].booleanSafe();
const bool shouldContinueOnInterrupt = data["shouldContinueOnInterrupt"].booleanSafe();
while (MONGO_unlikely(failPoint->shouldFail())) {
sleepFor(Milliseconds(10));
if (whileWaiting) {
whileWaiting();
}
// Check for interrupt so that an operation can be killed while waiting for the
// failpoint to be disabled, if the failpoint is configured to be interruptible.
//
// For shouldContinueOnInterrupt, an interrupt merely allows the code to continue
// past the failpoint; it is up to the code under test to actually check for
// interrupt.
if (shouldContinueOnInterrupt) {
if (!opCtx->checkForInterruptNoAssert().isOK())
break;
} else if (shouldCheckForInterrupt) {
opCtx->checkForInterrupt();
}
}
updateCurOpFailPointMsg(opCtx, origCurOpFailpointMsg);
},
[&](const BSONObj& data) {
StringData fpNss = data.getStringField("nss");
if (nss && !fpNss.empty() && fpNss != nss.get().toString()) {
return false;
}
return true;
});
}
} // namespace mongo
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