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Original file line number | Diff line number | Diff line change |
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package prover | ||
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import ( | ||
"fmt" | ||
"path/filepath" | ||
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"github.com/spacemeshos/merkle-tree/cache" | ||
"github.com/spacemeshos/merkle-tree/cache/readwriters" | ||
) | ||
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// GetLayerFactory creates a merkle LayerFactory. | ||
// The minMemoryLayer determines the threshold below which layers are saved on-disk, while layers equal and above - | ||
// in-memory. | ||
func GetLayerFactory(minMemoryLayer uint, datadir string, fileWriterBufSize uint) cache.LayerFactory { | ||
return func(layerHeight uint) (cache.LayerReadWriter, error) { | ||
if layerHeight < minMemoryLayer { | ||
fileName := filepath.Join(datadir, fmt.Sprintf("layercache_%d.bin", layerHeight)) | ||
readWriter, err := readwriters.NewFileReadWriter(fileName, int(fileWriterBufSize)) | ||
if err != nil { | ||
return nil, err | ||
} | ||
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return readWriter, nil | ||
} | ||
return &readwriters.SliceReadWriter{}, nil | ||
} | ||
} |
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