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25 lines
418 B
Go
25 lines
418 B
Go
// +build linux,!appengine
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package msgp
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import (
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"os"
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"syscall"
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)
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func adviseRead(mem []byte) {
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syscall.Madvise(mem, syscall.MADV_SEQUENTIAL|syscall.MADV_WILLNEED)
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}
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func adviseWrite(mem []byte) {
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syscall.Madvise(mem, syscall.MADV_SEQUENTIAL)
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}
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func fallocate(f *os.File, sz int64) error {
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err := syscall.Fallocate(int(f.Fd()), 0, 0, sz)
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if err == syscall.ENOTSUP {
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return f.Truncate(sz)
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}
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return err
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}
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