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gen_genesis.go: wip on generating knot
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "compress/gzip" | ||
| "io" | ||
| "log" | ||
| "os" | ||
| "strings" | ||
|
|
||
| "github.com/spruce-solutions/go-quai/consensus/blake3" | ||
| "github.com/spruce-solutions/go-quai/core" | ||
| "github.com/spruce-solutions/go-quai/core/rawdb" | ||
| "github.com/spruce-solutions/go-quai/params" | ||
| ) | ||
|
|
||
| func main() { | ||
| var ( | ||
| testdb = rawdb.NewMemoryDatabase() | ||
| genesis = core.RopstenPrimeGenesisBlock().MustCommit(testdb) | ||
| fn = "test_knot.rlp" | ||
| ) | ||
|
|
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| blake3Config := blake3.Config{ | ||
| MiningThreads: 0, | ||
| NotifyFull: true, | ||
| } | ||
|
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| blake3Engine, err := blake3.New(blake3Config, nil, false) | ||
| if nil != err { | ||
| log.Fatal("Failed to create Blake3 engine: ", err) | ||
| } | ||
|
|
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| blocks, _ := core.GenerateKnot(params.TestChainConfig, genesis, blake3Engine, testdb, 9, nil) | ||
|
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| // Open the file handle and potentially wrap with a gzip stream | ||
| fh, err := os.OpenFile(fn, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, os.ModePerm) | ||
| if err != nil { | ||
| log.Panic("error opening file") | ||
| } | ||
| defer fh.Close() | ||
|
|
||
| var writer io.Writer = fh | ||
| if strings.HasSuffix(fn, ".gz") { | ||
| writer = gzip.NewWriter(writer) | ||
| defer writer.(*gzip.Writer).Close() | ||
| } | ||
|
|
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| for _, block := range blocks { | ||
|
|
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| if err := block.EncodeRLP(writer); err != nil { | ||
| log.Panic("error writing") | ||
| } | ||
| } | ||
|
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| log.Println("Exported blockchain", "file", fn) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| package core | ||
|
|
||
| import ( | ||
| "compress/gzip" | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "strings" | ||
|
|
||
| "github.com/spruce-solutions/go-quai/core/types" | ||
| "github.com/spruce-solutions/go-quai/rlp" | ||
| ) | ||
|
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||
| func ReadKnot(chainfile string) []*types.Block { | ||
| // Load chain.rlp. | ||
| fmt.Println("Loading ReadKnot") | ||
| fh, err := os.Open(chainfile) | ||
| if err != nil { | ||
| fmt.Println("OPEN ERR 1", err) | ||
| return nil | ||
| } | ||
| defer fh.Close() | ||
| var reader io.Reader = fh | ||
| if strings.HasSuffix(chainfile, ".gz") { | ||
| if reader, err = gzip.NewReader(reader); err != nil { | ||
| fmt.Println("READER ERR 1", err) | ||
| return nil | ||
| } | ||
| } | ||
| stream := rlp.NewStream(reader, 0) | ||
| var blocks = make([]*types.Block, 1) | ||
| for i := 0; ; i++ { | ||
| var b types.Block | ||
| if err := stream.Decode(&b); err == io.EOF { | ||
| break | ||
| } else if err != nil { | ||
| fmt.Println("DECODE ERR 1", err) | ||
| return nil | ||
| } | ||
| if b.NumberU64() != uint64(i+1) { | ||
| fmt.Println("DECODE ERR 2", err) | ||
| return nil | ||
| } | ||
| blocks = append(blocks, &b) | ||
| } | ||
| for _, block := range blocks { | ||
| fmt.Println(block) | ||
| } | ||
| return blocks | ||
| } |
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