Function get_info_from_buffer

example/plugins/c-api/protocol/TxnSM.cc:914–947

Read data out through the_reader and save it in a char buffer. */

/* Read data out through the_reader and save it in a char buffer. */
char *
get_info_from_buffer(TSIOBufferReader the_reader)
{
  char *info;
  char *info_start;

  int64_t read_avail, read_done;

  if (!the_reader) {
    return nullptr;
  }

  read_avail = TSIOBufferReaderAvail(the_reader);

  info = static_cast<char *>(TSmalloc(sizeof(char) * read_avail));
  if (info == nullptr) {
    return nullptr;
  }
  info_start = info;

  /* Read the data out of the reader */
  while (read_avail > 0) {
    TSIOBufferBlock blk = TSIOBufferReaderStart(the_reader);
    char           *buf = const_cast<char *>(TSIOBufferBlockReadStart(blk, the_reader, &read_done));
    memcpy(info, buf, read_done);
    if (read_done > 0) {
      TSIOBufferReaderConsume(the_reader, read_done);
      read_avail -= read_done;
      info       += read_done;
    }
  }

  return info_start;
}

/* Check if the end token is in the char buffer. */
int