102 lines
2.1 KiB
C++
102 lines
2.1 KiB
C++
#include "era/xml_format.h"
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using namespace boost;
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using namespace era;
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using namespace persistent_data;
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using namespace std;
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//----------------------------------------------------------------
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namespace {
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class xml_emitter : public emitter {
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public:
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xml_emitter(ostream &out)
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: out_(out),
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indent_(0) {
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}
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void begin_superblock(std::string const &uuid,
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uint32_t block_size,
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pd::block_address nr_blocks,
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uint32_t current_era) {
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indent();
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out_ << "<superblock uuid=\"" << uuid << "\""
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<< " block_size=\"" << block_size << "\""
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<< " nr_blocks=\"" << nr_blocks << "\""
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<< " current_era=\"" << current_era << "\">" << endl;
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inc();
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}
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void end_superblock() {
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dec();
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indent();
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out_ << "</superblock>" << endl;
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}
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void begin_writeset(uint32_t era, uint32_t nr_bits) {
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indent();
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out_ << "<writeset era=\"" << era << "\""
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<< " nr_bits=\"" << nr_bits << "\">" << endl;
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inc();
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}
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void writeset_bit(uint32_t bit, bool value) {
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indent();
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// FIXME: collect all the bits, then uuencode
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out_ << "<bit bit=\"" << bit << "\" value=\"" << value << "\">" << endl;
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}
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void end_writeset() {
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dec();
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indent();
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out_ << "</writeset>" << endl;
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}
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void begin_era_array() {
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indent();
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out_ << "<era_array>" << endl;
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inc();
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}
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void era(pd::block_address block, uint32_t era) {
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indent();
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out_ << "<era block=\"" << block
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<< "\" era=\"" << era << "\">" << endl;
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}
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void end_era_array() {
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dec();
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indent();
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out_ << "</era_array>" << endl;
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}
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private:
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// FIXME: factor out a common class with the thin_provisioning emitter
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void indent() {
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for (unsigned i = 0; i < indent_ * 2; i++)
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out_ << ' ';
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}
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void inc() {
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indent_++;
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}
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void dec() {
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indent_--;
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}
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ostream &out_;
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unsigned indent_;
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};
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}
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//----------------------------------------------------------------
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emitter::ptr
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era::create_xml_emitter(std::ostream &out)
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{
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return emitter::ptr(new xml_emitter(out));
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}
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//----------------------------------------------------------------
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