ref: dfea95b3c29ef4a6de2713a946453d3a022ae0b4
dir: /sys/src/libthread/ioclose.c/
#include <u.h> #include <libc.h> #include <thread.h> #include "threadimpl.h" static long _ioclose(va_list *arg) { int fd; fd = va_arg(*arg, int); return close(fd); } int ioclose(Ioproc *io, int fd) { return iocall(io, _ioclose, fd); }