Function test_plugin_options

sql/sql_plugin.cc:4202–4404

*/

static int test_plugin_options(MEM_ROOT *tmp_root, struct st_plugin_int *tmp,
                               int *argc, char **argv)
{
  struct sys_var_chain chain= { NULL, NULL };
  bool disable_plugin= false;
  enum_plugin_load_option plugin_load_option= tmp->load_option;

  MEM_ROOT *mem_root= alloc_root_inited(&tmp->mem_root) ?
                      &tmp->mem_root : &plugin_vars_mem_root;
  st_mysql_sys_var **opt;
  my_option *opts= NULL;
  int error= 1;
  struct st_bookmark *var;
  size_t len=0, count= EXTRA_OPTIONS;
  st_ptr_backup *tmp_backup= 0;
  const char *plugin_name= tmp->plugin->name;
  size_t plugin_name_len= strlen(plugin_name);
  DBUG_ENTER("test_plugin_options");
  DBUG_ASSERT(tmp->plugin && tmp->name.str);

  char *plugin_name_ptr= static_cast<char*>(alloc_root(mem_root, plugin_name_len + 1));
  safe_strcpy(plugin_name_ptr, plugin_name_len + 1, plugin_name);
  my_casedn_str_latin1(plugin_name_ptr);
  if (tmp->plugin->system_vars || (*argc > 1))
  {
    for (opt= tmp->plugin->system_vars; opt && *opt; opt++)
    {
      len++;
      if (!((*opt)->flags & PLUGIN_VAR_NOCMDOPT))
        count+= 2; /* --{plugin}-{optname} and --plugin-{plugin}-{optname} */
    }

    if (!(opts= (my_option*) alloc_root(tmp_root, sizeof(my_option) * count)))
    {
      sql_print_error("Out of memory for plugin '%s'.", tmp->name.str);
      DBUG_RETURN(-1);
    }
    bzero(opts, sizeof(my_option) * count);

    if (construct_options(tmp_root, tmp, opts))
    {
      sql_print_error("Bad options for plugin '%s'.", tmp->name.str);
      DBUG_RETURN(-1);
    }

    if (tmp->plugin->system_vars)
    {
      tmp_backup= (st_ptr_backup *)my_alloca(len * sizeof(tmp_backup[0]));
      DBUG_ASSERT(tmp->nbackups == 0);
      DBUG_ASSERT(tmp->ptr_backup == 0);

      for (opt= tmp->plugin->system_vars; *opt; opt++)
      {
        st_mysql_sys_var *o= *opt;
        char *varname;
        sys_var *v;

        tmp_backup[tmp->nbackups++].save(&o->name);