mirror of https://github.com/octoleo/restic.git
40 lines
927 B
Go
40 lines
927 B
Go
package chunker
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import (
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"bytes"
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"crypto/sha256"
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"fmt"
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"io"
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)
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func ExampleChunker() {
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// generate 32MiB of deterministic pseudo-random data
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data := getRandom(23, 32*1024*1024)
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// create a chunker
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chunker := New(bytes.NewReader(data), Pol(0x3DA3358B4DC173))
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// reuse this buffer
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buf := make([]byte, 8*1024*1024)
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for i := 0; i < 5; i++ {
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chunk, err := chunker.Next(buf)
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if err == io.EOF {
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break
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}
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if err != nil {
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panic(err)
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}
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fmt.Printf("%d %02x\n", chunk.Length, sha256.Sum256(chunk.Data))
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}
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// Output:
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// 2163460 4b94cb2cf293855ea43bf766731c74969b91aa6bf3c078719aabdd19860d590d
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// 643703 5727a63c0964f365ab8ed2ccf604912f2ea7be29759a2b53ede4d6841e397407
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// 1528956 a73759636a1e7a2758767791c69e81b69fb49236c6929e5d1b654e06e37674ba
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// 1955808 c955fb059409b25f07e5ae09defbbc2aadf117c97a3724e06ad4abd2787e6824
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// 2222372 6ba5e9f7e1b310722be3627716cf469be941f7f3e39a4c3bcefea492ec31ee56
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}
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