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/**
* Copyright (C) 2015 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::kSharding
#include "mongo/platform/basic.h"
#include "mongo/s/catalog/dist_lock_manager.h"
#include <memory>
namespace mongo {
const stdx::chrono::seconds DistLockManager::kDefaultLockTimeout(20);
const stdx::chrono::milliseconds DistLockManager::kSingleLockAttemptTimeout(0);
const stdx::chrono::milliseconds DistLockManager::kDefaultLockRetryInterval(500);
DistLockManager::ScopedDistLock::ScopedDistLock(OperationContext* txn,
DistLockHandle lockHandle,
DistLockManager* lockManager)
: _txn(txn), _lockID(std::move(lockHandle)), _lockManager(lockManager) {}
DistLockManager::ScopedDistLock::~ScopedDistLock() {
if (_lockManager) {
_lockManager->unlock(_txn, _lockID);
}
}
DistLockManager::ScopedDistLock::ScopedDistLock(ScopedDistLock&& other)
: _txn(nullptr), _lockManager(nullptr) {
*this = std::move(other);
}
DistLockManager::ScopedDistLock& DistLockManager::ScopedDistLock::operator=(
ScopedDistLock&& other) {
if (this != &other) {
invariant(_lockManager == nullptr);
invariant(_txn == nullptr);
_txn = other._txn;
_lockID = std::move(other._lockID);
_lockManager = other._lockManager;
other._lockManager = nullptr;
}
return *this;
}
Status DistLockManager::ScopedDistLock::checkStatus() {
if (!_lockManager) {
return Status(ErrorCodes::IllegalOperation, "no lock manager, lock was not acquired");
}
return _lockManager->checkStatus(_txn, _lockID);
}
} // namespace mongo
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