thin-provisioning-tools/contrib/ewheeler_emitter.cc

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#include "thin-provisioning/emitter.h"
using namespace std;
using namespace thin_provisioning;
//----------------------------------------------------------------
namespace {
template <typename T>
std::ostream &operator << (ostream &out, boost::optional<T> const &maybe) {
if (maybe)
out << *maybe;
return out;
}
class old_emitter : public emitter {
public:
old_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) {
data_block_size_ = data_block_size;
}
void end_superblock() {
}
void begin_device(uint32_t dev_id,
uint64_t mapped_blocks,
uint64_t trans_id,
uint64_t creation_time,
uint64_t snap_time) {
}
void end_device() {
}
void begin_named_mapping(string const &name) {
}
void end_named_mapping() {
}
void identifier(string const &name) {
}
void range_map(uint64_t origin_begin, uint64_t data_begin, uint32_t time, uint64_t len) {
out_ << (data_block_size_ << 9)*origin_begin
<< ":" << (data_block_size_ << 9)*len
<< ":" << (data_block_size_ << 9)*data_begin
<< endl;
}
void single_map(uint64_t origin_block, uint64_t data_block, uint32_t time) {
out_ << (data_block_size_ << 9)*origin_block
<< ":" << (data_block_size_ << 9)
<< ":" << (data_block_size_ << 9)*data_block
<< endl;
}
private:
ostream &out_;
uint64_t data_block_size_;
};
}
//----------------------------------------------------------------
extern "C" {
emitter::ptr create_emitter(ostream &out) {
return emitter::ptr(new old_emitter(out));
}
}
//----------------------------------------------------------------