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/*
* Copyright (C) 2013 10gen 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.
*/
#pragma once
#include <atomic>
#include <string>
#include "mongo/platform/atomic_proxy.h"
/*
* This file defines the storage for options that come from the command line related to data file
* persistence. Many executables that can access data files directly such as mongod and certain
* tools use these variables, but each executable may have a different set of command line flags
* that allow the user to change a different subset of these options.
*/
namespace mongo {
struct StorageGlobalParams {
// Default data directory for mongod when running in non-config server mode.
static const char* kDefaultDbPath;
// Default data directory for mongod when running as the config database of
// a sharded cluster.
static const char* kDefaultConfigDbPath;
// --storageEngine
// storage engine for this instance of mongod.
std::string engine = "wiredTiger";
// True if --storageEngine was passed on the command line, and false otherwise.
bool engineSetByUser = false;
// The directory where the mongod instance stores its data.
std::string dbpath = kDefaultDbPath;
// --upgrade
// Upgrades the on-disk data format of the files specified by the --dbpath to the
// latest version, if needed.
bool upgrade = false;
// --repair
// Runs a repair routine on all databases. This is equivalent to shutting down and
// running the repairDatabase database command on all databases.
bool repair = false;
// --repairpath
// Specifies the root directory containing MongoDB data files to use for the --repair
// operation.
// Default: A _tmp directory within the path specified by the dbPath option.
std::string repairpath;
// The intention here is to enable the journal by default if we are running on a 64 bit system.
bool dur = (sizeof(void*) == 8); // --dur durability (now --journal)
// --journalCommitInterval
static const int kMaxJournalCommitIntervalMs;
std::atomic<int> journalCommitIntervalMs; // NOLINT
// --notablescan
// no table scans allowed
std::atomic<bool> noTableScan{false}; // NOLINT
// --directoryperdb
// Stores each database’s files in its own folder in the data directory.
// When applied to an existing system, the directoryPerDB option alters
// the storage pattern of the data directory.
bool directoryperdb = false;
// --syncdelay
// Controls how much time can pass before MongoDB flushes data to the data files
// via an fsync operation.
// Do not set this value on production systems.
// In almost every situation, you should use the default setting.
AtomicDouble syncdelay{60.0}; // seconds between fsyncs
bool readOnly = false;
};
extern StorageGlobalParams storageGlobalParams;
} // namespace mongo
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