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/**
* Copyright (C) 2019-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/repl/initial_sync_shared_data.h"
namespace mongo {
namespace repl {
int InitialSyncSharedData::incrementRetryingOperations(WithLock lk) {
if (_retryingOperationsCount++ == 0) {
_syncSourceUnreachableSince = _clock->now();
}
return _retryingOperationsCount;
}
int InitialSyncSharedData::decrementRetryingOperations(WithLock lk) {
invariant(_retryingOperationsCount > 0);
if (--_retryingOperationsCount == 0) {
_totalTimeUnreachable += (_clock->now() - _syncSourceUnreachableSince);
_syncSourceUnreachableSince = Date_t();
}
return _retryingOperationsCount;
}
bool InitialSyncSharedData::shouldRetryOperation(WithLock lk, RetryableOperation* retryableOp) {
if (!*retryableOp) {
retryableOp->emplace(this);
incrementRetryingOperations(lk);
}
invariant((**retryableOp)._sharedData == this);
auto outageDuration = getCurrentOutageDuration(lk);
if (outageDuration <= _allowedOutageDuration) {
incrementTotalRetries(lk);
return true;
} else {
(**retryableOp).release(lk);
*retryableOp = boost::none;
return false;
}
}
Milliseconds InitialSyncSharedData::getTotalTimeUnreachable(WithLock lk) {
return _totalTimeUnreachable +
((_retryingOperationsCount > 0) ? _clock->now() - _syncSourceUnreachableSince
: Milliseconds::zero());
}
Milliseconds InitialSyncSharedData::getCurrentOutageDuration(WithLock lk) {
return ((_retryingOperationsCount > 0) ? _clock->now() - _syncSourceUnreachableSince
: Milliseconds::min());
}
} // namespace repl
} // namespace mongo
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