68 lines
1.7 KiB
Go
68 lines
1.7 KiB
Go
// hash_mona.go
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package mona
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/*
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#cgo CFLAGS : -I../include
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#cgo LDFLAGS: -L../lib -llyra2re
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#include <stdio.h>
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#include <stdlib.h>
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#include "Lyra2RE.h"
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*/
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import "C"
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import (
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"bytes"
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//"encoding/hex"
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"log"
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"unsafe"
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"github.com/btcsuite/btcd/chaincfg/chainhash"
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"github.com/btcsuite/btcd/wire"
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)
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// MONA
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func Build_MonaPowHash(h wire.BlockHeader) chainhash.Hash {
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outputs := make([]byte, 32)
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var powhash chainhash.Hash
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buf := bytes.NewBuffer(make([]byte, 0, wire.MaxBlockHeaderPayload))
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err := h.Serialize(buf)
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if err != nil {
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log.Println("[mona] powhash: Serialize error:", err)
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return powhash
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}
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//test_mona_pow := "0000002013bea8369753c2a405f4704f698f7322c0a52f3ab89e853a14c3b124cf667d098612a82ce1741ab44ae31b5aeb6a7e622386cc4baeb57a046ed1d0fa676fee6cd0f008678ef70f1a6e9deb7a"
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//test_mona_bytes, _ := hex.DecodeString(test_mona_pow)
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//log.Println("[mona]in", hex.EncodeToString(buf.Bytes()))
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in := (*C.char)(C.CBytes(buf.Bytes()))
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//in := (*C.char)(C.CBytes(test_mona_bytes))
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defer C.free(unsafe.Pointer(in))
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output := (*C.char)(C.malloc(32))
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if output == nil {
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log.Println("[mona] powhash: malloc failed")
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return powhash
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}
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defer C.free(unsafe.Pointer(output))
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//C.lyra2re2_hash(unsafe.Pointer(in), unsafe.Pointer(output))
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C.lyra2re2_hash(in, output)
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//outputs := C.GoBytes((*C.uint8_t)((unsafe.Pointer)(output)), 32)
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/*p := uintptr(unsafe.Pointer(output))
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for i := 0; i < 32; i++ {
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j := *(*byte)(unsafe.Pointer(p))
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outputs[i] = j
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p += unsafe.Sizeof(j)
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}*/
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outputs = C.GoBytes(unsafe.Pointer(output), 32)
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//log.Println("[mona]out", outputs)
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err = powhash.SetBytes(outputs)
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if err != nil {
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log.Println("[mona] powhash: SetBytes error:", err)
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return powhash
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}
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return powhash
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}
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