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,