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Factor out base/indented_stream.h

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This commit is contained in:
Joe Thornber
2014-01-31 13:43:39 +00:00
parent 8531a2befa
commit 344f4b1e08
4 changed files with 109 additions and 104 deletions
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53
era/xml_format.cc
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@ -1,5 +1,7 @@
#include "era/xml_format.h"
#include "base/indented_stream.h"
using namespace boost;
using namespace era;
using namespace persistent_data;
@ -11,82 +13,67 @@ namespace {
class xml_emitter : public emitter {
public:
xml_emitter(ostream &out)
: out_(out),
indent_(0) {
: out_(out) {
}
void begin_superblock(std::string const &uuid,
uint32_t block_size,
pd::block_address nr_blocks,
uint32_t current_era) {
indent();
out_.indent();
out_ << "<superblock uuid=\"" << uuid << "\""
<< " block_size=\"" << block_size << "\""
<< " nr_blocks=\"" << nr_blocks << "\""
<< " current_era=\"" << current_era << "\">" << endl;
inc();
<< " current_era=\"" << current_era << "\">";
out_ << endl;
out_.inc();
}
void end_superblock() {
dec();
indent();
out_.dec();
out_.indent();
out_ << "</superblock>" << endl;
}
void begin_writeset(uint32_t era, uint32_t nr_bits) {
indent();
out_.indent();
out_ << "<writeset era=\"" << era << "\""
<< " nr_bits=\"" << nr_bits << "\">" << endl;
inc();
out_.inc();
}
void writeset_bit(uint32_t bit, bool value) {
indent();
out_.indent();
// FIXME: collect all the bits, then uuencode
out_ << "<bit bit=\"" << bit << "\" value=\"" << value << "\">" << endl;
}
void end_writeset() {
dec();
indent();
out_.dec();
out_.indent();
out_ << "</writeset>" << endl;
}
void begin_era_array() {
indent();
out_.indent();
out_ << "<era_array>" << endl;
inc();
out_.inc();
}
void era(pd::block_address block, uint32_t era) {
indent();
out_.indent();
out_ << "<era block=\"" << block
<< "\" era=\"" << era << "\">" << endl;
}
void end_era_array() {
dec();
indent();
out_.dec();
out_.indent();
out_ << "</era_array>" << endl;
}
private:
// FIXME: factor out a common class with the thin_provisioning emitter
void indent() {
for (unsigned i = 0; i < indent_ * 2; i++)
out_ << ' ';
}
void inc() {
indent_++;
}
void dec() {
indent_--;
}
ostream &out_;
unsigned indent_;
indented_stream out_;
};
}