feature: added ffi-based function 'ngx_http_lua_ffi_req_is_internal'.

Author: chronolaw

src/ngx_http_lua_misc.c

@@ -99,6 +99,17 @@ ngx_http_lua_ffi_set_resp_status(ngx_http_request_t *r, int status)
 }
 
 
+int
+ngx_http_lua_ffi_req_is_internal(ngx_http_request_t *r)
+{
+    if (r->connection->fd == (ngx_socket_t) -1) {
+        return NGX_HTTP_LUA_FFI_BAD_CONTEXT;
+    }
+
+    return r->internal;
+}
+
+
 int
 ngx_http_lua_ffi_is_subrequest(ngx_http_request_t *r)
 {