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23 lines
425 B
Go
23 lines
425 B
Go
//go:build linux || freebsd
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// +build linux freebsd
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package fs
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import (
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"fmt"
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"os"
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"golang.org/x/sys/unix"
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)
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func fadviseSequentialRead(f *os.File, prefetch bool) error {
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fd := int(f.Fd())
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mode := unix.FADV_SEQUENTIAL
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if prefetch {
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mode |= unix.FADV_WILLNEED
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}
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if err := unix.Fadvise(int(fd), 0, 0, mode); err != nil {
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return fmt.Errorf("error returned from unix.Fadvise(%d): %w", mode, err)
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}
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return nil
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}
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