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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2017 Red Hat Ltd
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#ifndef FS_COMMANDS_H_
#define FS_COMMANDS_H_
#include "Monitor.h"
#include "CommandHandler.h"
#include "osd/OSDMap.h"
#include "mds/FSMap.h"
#include <string>
#include <sstream>
class FileSystemCommandHandler : protected CommandHandler
{
protected:
std::string prefix;
enum {
POOL_METADATA,
POOL_DATA_DEFAULT,
POOL_DATA_EXTRA,
};
/**
* Return 0 if the pool is suitable for use with CephFS, or
* in case of errors return a negative error code, and populate
* the passed stringstream with an explanation.
*
* @param metadata whether the pool will be for metadata (stricter checks)
*/
int _check_pool(
OSDMap &osd_map,
const int64_t pool_id,
int type,
bool force,
std::stringstream *ss) const;
virtual std::string const &get_prefix() {return prefix;}
public:
FileSystemCommandHandler(const std::string &prefix_)
: prefix(prefix_)
{}
virtual ~FileSystemCommandHandler()
{}
bool can_handle(std::string const &prefix_)
{
return get_prefix() == prefix_;
}
static std::list<std::shared_ptr<FileSystemCommandHandler> > load(Paxos *paxos);
virtual bool batched_propose() {
return false;
}
virtual int handle(
Monitor *mon,
FSMap &fsmap,
MonOpRequestRef op,
const cmdmap_t& cmdmap,
std::stringstream &ss) = 0;
};
#endif
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