core: Implement websocket timeout in C.

src/http.c

@@ -955,6 +955,11 @@ void tf_http_request_websocket_send(tf_http_request_t* request, int op_code, con
 	tf_free(copy);
 }
 
+void tf_http_request_websocket_close(tf_http_request_t* request)
+{
+	_http_connection_destroy(request->connection, "websocket close");
+}
+
 void tf_http_respond(tf_http_request_t* request, int status, const char** headers, int headers_count, const void* body, size_t content_length)
 {
 	if (request->connection->is_response_sent)