Plan 9 from Bell Labs’s /usr/web/sources/contrib/gabidiaz/root/sys/src/cmd/perl/ext/threads/typemap
ithread * T_ITHREAD INPUT T_ITHREAD $var = SV_to_ithread(aTHX_ $arg) OUTPUT T_ITHREAD ithread_to_SV(aTHX_ $arg, $var, classname, TRUE);
