mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-11-21 14:44:00 +00:00
30 lines
543 B
Go
30 lines
543 B
Go
package filestream
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import (
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"fmt"
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"golang.org/x/sys/unix"
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)
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func (st *streamTracker) adviseDontNeed(n int, fdatasync bool) error {
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st.length += uint64(n)
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if st.fd == 0 {
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return nil
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}
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if st.length < dontNeedBlockSize {
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return nil
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}
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blockSize := st.length - (st.length % dontNeedBlockSize)
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if fdatasync {
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if err := unix.Fsync(int(st.fd)); err != nil {
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return fmt.Errorf("unix.Fsync error: %w", err)
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}
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}
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st.offset += blockSize
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st.length -= blockSize
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return nil
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}
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func (st *streamTracker) close() error {
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return nil
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}
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