1package sysfs
 2
 3import (
 4	"io/fs"
 5	"syscall"
 6
 7	"github.com/tetratelabs/wazero/experimental/sys"
 8)
 9
10func setNonblock(fd uintptr, enable bool) sys.Errno {
11	// We invoke the syscall, but this is currently no-op.
12	return sys.UnwrapOSError(syscall.SetNonblock(syscall.Handle(fd), enable))
13}
14
15func isNonblock(f *osFile) bool {
16	// On Windows, we support non-blocking reads only on named pipes.
17	isValid := false
18	st, errno := f.Stat()
19	if errno == 0 {
20		isValid = st.Mode&fs.ModeNamedPipe != 0
21	}
22	return isValid && f.flag&sys.O_NONBLOCK == sys.O_NONBLOCK
23}