ref: c3487a4b49b6988aad0e340ad9e986e4549b9317
dir: /sys/src/libthread/iosleep.c/
#include <u.h> #include <libc.h> #include <thread.h> #include "threadimpl.h" static long _iosleep(va_list *arg) { long n; n = va_arg(*arg, long); return sleep(n); } int iosleep(Ioproc *io, long n) { return iocall(io, _iosleep, n); }