Function print_headers

plugins/xdebug/xdebug_headers.cc:121–156

////////////////////////////////////////////////////////////////////// Dump a header on stderr, useful together with Dbg().

///////////////////////////////////////////////////////////////////////////
// Dump a header on stderr, useful together with Dbg().
void
print_headers(TSMBuffer bufp, TSMLoc hdr_loc, std::stringstream &ss)
{
  TSIOBuffer        output_buffer;
  TSIOBufferReader  reader;
  TSIOBufferBlock   block;
  const char       *block_start;
  int64_t           block_avail;
  EscapeCharForJson escape_char_for_json;
  output_buffer = TSIOBufferCreate();
  reader        = TSIOBufferReaderAlloc(output_buffer);

  ss << "\t'Start-Line' : '";

  // Print all message header lines.
  TSHttpHdrPrint(bufp, hdr_loc, output_buffer);

  /* We need to loop over all the buffer blocks, there can be more than 1 */
  block = TSIOBufferReaderStart(reader);
  do {
    block_start = TSIOBufferBlockReadStart(block, reader, &block_avail);
    for (const char *c = block_start; c < block_start + block_avail; ++c) {
      ss << escape_char_for_json(*c);
    }
    TSIOBufferReaderConsume(reader, block_avail);
    block = TSIOBufferReaderStart(reader);
  } while (block && block_avail != 0);

  ss.seekp(-escape_char_for_json.backup(), std::ios_base::end);

  /* Free up the TSIOBuffer that we used to print out the header */
  TSIOBufferReaderFree(reader);
  TSIOBufferDestroy(output_buffer);

  Dbg(dbg_ctl_hdrs, "%.*s", static_cast<int>(ss.tellp()), ss.str().data());
}

void
log_headers(TSHttpTxn /* txn ATS_UNUSED */, TSMBuffer bufp, TSMLoc hdr_loc, char const *type_msg)