int cwiid_set_mesg_callback(cwiid_wiimote_t *wiimote,
cwiid_mesg_callback_t *callback)
{
if (wiimote->mesg_callback) {
if (cancel_mesg_callback(wiimote)) {
/* prints it's own errors */
return -1;
}
}
wiimote->mesg_callback = callback;
if (wiimote->mesg_callback) {
if (pthread_create(&wiimote->mesg_callback_thread, NULL,
(void *(*)(void *))&mesg_callback_thread, wiimote)) {
cwiid_err(wiimote, "Thread creation error (callback thread)");
return -1;
}
}
return 0;
}
int cwiid_close(cwiid_wiimote_t *wiimote)
{
void *pthread_ret;
int err;
/* Stop rumbling, otherwise wiimote continues to rumble for
few seconds after closing the connection! There should be no
need to check if stopping fails: we are closing the connection
in any case. */
if (wiimote->state.rumble) {
cwiid_set_rumble(wiimote, 0);
}
/* Cancel and join router_thread and status_thread */
if (pthread_cancel(wiimote->router_thread)) {
/* if thread quit abnormally, would have printed it's own error */
}
err = pthread_join(wiimote->router_thread, &pthread_ret);
if (err) {
cwiid_err(wiimote, "Thread join error (router thread): %s", strerror(err));
}
else if (!((pthread_ret == PTHREAD_CANCELED) || (pthread_ret == NULL))) {
cwiid_err(wiimote, "Bad return value from router thread");
}
if (pthread_cancel(wiimote->status_thread)) {
/* if thread quit abnormally, would have printed it's own error */
}
err = pthread_join(wiimote->status_thread, &pthread_ret);
if (err) {
cwiid_err(wiimote, "Thread join error (status thread): %s", strerror(err));
}
else if (!((pthread_ret == PTHREAD_CANCELED) || (pthread_ret == NULL))) {
cwiid_err(wiimote, "Bad return value from status thread");
}
if (wiimote->mesg_callback) {
if (cancel_mesg_callback(wiimote)) {
/* prints it's own errors */
}
}
if (cancel_rw(wiimote)) {
/* prints it's own errors */
}
/* Close sockets */
if (close(wiimote->int_socket)) {
cwiid_err(wiimote, "Socket close error (interrupt socket): %s", strerror(errno));
}
if (close(wiimote->ctl_socket)) {
cwiid_err(wiimote, "Socket close error (control socket): %s", strerror(errno));
}
/* Close Pipes */
if (close(wiimote->mesg_pipe[0]) || close(wiimote->mesg_pipe[1])) {
cwiid_err(wiimote, "Pipe close error (mesg pipe): %s", strerror(errno));
}
if (close(wiimote->status_pipe[0]) || close(wiimote->status_pipe[1])) {
cwiid_err(wiimote, "Pipe close error (status pipe): %s", strerror(errno));
}
if (close(wiimote->rw_pipe[0]) || close(wiimote->rw_pipe[1])) {
cwiid_err(wiimote, "Pipe close error (rw pipe): %s", strerror(errno));
}
/* Destroy mutexes */
err = pthread_mutex_destroy(&wiimote->state_mutex);
if (err) {
cwiid_err(wiimote, "Mutex destroy error (state): %s", strerror(err));
}
err = pthread_mutex_destroy(&wiimote->rw_mutex);
if (err) {
cwiid_err(wiimote, "Mutex destroy error (rw): %s", strerror(err));
}
err = pthread_mutex_destroy(&wiimote->rpt_mutex);
if (err) {
cwiid_err(wiimote, "Mutex destroy error (rpt): %s", strerror(err));
}
free(wiimote);
return 0;
}
