25 lines
603 B
Go
25 lines
603 B
Go
package sysfs
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import (
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"io/fs"
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"syscall"
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"github.com/tetratelabs/wazero/experimental/sys"
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"github.com/tetratelabs/wazero/internal/fsapi"
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)
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func setNonblock(fd uintptr, enable bool) sys.Errno {
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// We invoke the syscall, but this is currently no-op.
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return sys.UnwrapOSError(syscall.SetNonblock(syscall.Handle(fd), enable))
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}
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func isNonblock(f *osFile) bool {
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// On Windows, we support non-blocking reads only on named pipes.
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isValid := false
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st, errno := f.Stat()
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if errno == 0 {
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isValid = st.Mode&fs.ModeNamedPipe != 0
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}
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return isValid && f.flag&fsapi.O_NONBLOCK == fsapi.O_NONBLOCK
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}
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