prev_keys        1980 http/ngx_http.c     ngx_array_t **prev_keys, ngx_hash_t *prev_types_hash,
prev_keys        2008 http/ngx_http.c         if (*prev_keys == NULL) {
prev_keys        2010 http/ngx_http.c             if (ngx_http_set_default_types(cf, prev_keys, default_types)
prev_keys        2016 http/ngx_http.c         } else if (*prev_keys == (void *) -1) {
prev_keys        2017 http/ngx_http.c             *keys = *prev_keys;
prev_keys        2029 http/ngx_http.c         if (ngx_hash_init(&hash, (*prev_keys)->elts, (*prev_keys)->nelts)
prev_keys         140 http/ngx_http.h     ngx_hash_t *types_hash, ngx_array_t **prev_keys,