Method lex_cstring

sql/sql_path.cc:450–468

LEX_CSTRING Sql_path::lex_cstring(MEM_ROOT *mem_root) const
{
  LEX_CSTRING res;
  size_t nbytes_needed= text_format_nbytes_needed();
  char *ptr= (char *) alloc_root(mem_root, nbytes_needed);
  if (ptr)
  {
    res.length= print(ptr, nbytes_needed);
    res.str= ptr;
    DBUG_ASSERT(res.length < nbytes_needed);
  }
  else
  {
    res.str= nullptr;
    res.length= 0;
  }

  return res;
}

Sql_path_instant_set::Sql_path_instant_set(THD *thd, const LEX_CSTRING &str)
  : m_thd(thd), m_path(std::move(thd->variables.path))