50 lines
939 B
Go
50 lines
939 B
Go
//go:build linux
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// +build linux
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package store
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import (
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"bytes"
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"io"
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"os"
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"syscall"
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"github.com/lbryio/lbry.go/v2/extras/errors"
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"github.com/lbryio/lbry.go/v2/stream"
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"github.com/brk0v/directio"
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)
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var openFileFlags = os.O_WRONLY | os.O_CREATE | syscall.O_DIRECT
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// Put stores the blob on disk
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func (d *DiskStore) Put(hash string, blob stream.Blob) error {
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err := d.initOnce()
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if err != nil {
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return err
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}
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err = d.ensureDirExists(d.dir(hash))
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if err != nil {
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return err
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}
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// Open file with O_DIRECT
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f, err := os.OpenFile(d.tmpPath(hash), openFileFlags, 0644)
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if err != nil {
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return errors.Err(err)
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}
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defer func() { _ = f.Close() }()
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dio, err := directio.New(f)
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if err != nil {
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return errors.Err(err)
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}
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defer func() { _ = dio.Flush() }()
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_, err = io.Copy(dio, bytes.NewReader(blob))
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if err != nil {
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return errors.Err(err)
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}
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err = os.Rename(d.tmpPath(hash), d.path(hash))
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return errors.Err(err)
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}
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