thin-provisioning-tools/thin-provisioning/human_readable_format.cc

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// Copyright (C) 2011 Red Hat, Inc. All rights reserved.
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//
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// This file is part of the thin-provisioning-tools source.
//
// thin-provisioning-tools is free software: you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// thin-provisioning-tools 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with thin-provisioning-tools. If not, see
// <http://www.gnu.org/licenses/>.
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#include "human_readable_format.h"
#include <iostream>
using namespace std;
using namespace thin_provisioning;
//----------------------------------------------------------------
namespace {
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template <typename T>
std::ostream &operator << (ostream &out, boost::optional<T> const &maybe) {
if (maybe)
out << *maybe;
return out;
}
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class hr_emitter : public emitter {
public:
hr_emitter(ostream &out)
: out_(out) {
}
void begin_superblock(string const &uuid,
uint64_t time,
uint64_t trans_id,
boost::optional<uint32_t> flags,
boost::optional<uint32_t> version,
uint32_t data_block_size,
uint64_t nr_data_blocks,
boost::optional<uint64_t> metadata_snap) {
out_ << "begin superblock: \"" << uuid << "\""
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<< ", " << time
<< ", " << trans_id
<< ", " << (flags ? *flags : 0)
<< ", " << (version ? *version : 1)
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<< ", " << data_block_size
<< ", " << nr_data_blocks;
if (metadata_snap)
out_ << ", " << metadata_snap;
out_ << endl;
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}
void end_superblock() {
out_ << "end superblock" << endl;
}
void begin_device(uint32_t dev_id,
uint64_t mapped_blocks,
uint64_t trans_id,
uint64_t creation_time,
uint64_t snap_time) {
out_ << "device: " << dev_id << endl
<< "mapped_blocks: " << mapped_blocks << endl
<< "transaction: " << trans_id << endl
<< "creation time: " << creation_time << endl
<< "snap time: " << snap_time << endl;
}
void end_device() {
out_ << endl;
}
void begin_named_mapping(string const &name) {
out_ << "begin named mapping"
<< endl;
}
void end_named_mapping() {
out_ << "end named mapping"
<< endl;
}
void identifier(string const &name) {
out_ << "identifier: " << name << endl;
}
void range_map(uint64_t origin_begin, uint64_t data_begin, uint32_t time, uint64_t len) {
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out_ << " (" << origin_begin
<< ".." << origin_begin + len - 1
<< ") -> (" << data_begin
<< ".." << data_begin + len - 1
<< "), "
<< time
<< endl;
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}
void single_map(uint64_t origin_block, uint64_t data_block, uint32_t time) {
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out_ << " " << origin_block
<< " -> " << data_block
<< ", " << time
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<< endl;
}
private:
ostream &out_;
};
}
//----------------------------------------------------------------
thin_provisioning::emitter::ptr
thin_provisioning::create_human_readable_emitter(ostream &out)
{
return emitter::ptr(new hr_emitter(out));
}
//----------------------------------------------------------------