XBT_PRIVATE void TRACE_msg_task_destroy(msg_task_t task);
XBT_PRIVATE void TRACE_msg_task_get_end(msg_task_t task);
XBT_PRIVATE void TRACE_msg_task_get_start();
-XBT_PRIVATE int TRACE_msg_task_put_start(msg_task_t task); // returns TRUE if the task_put_end must be called
+XBT_PRIVATE void TRACE_msg_task_put_start(msg_task_t task);
XBT_PRIVATE void TRACE_msg_task_put_end();
/* declaration of instrumentation functions from msg_process_instr.c */