func (pow *Ethash) light(nonce uint64, miningHash []byte) []byte {
cMiningHash := (*C.uint8_t)(unsafe.Pointer(&miningHash))
cnonce := C.uint64_t(nonce)
var hashR *C.uint8_t
hashR = (*C.uint8_t)(C.malloc(32))
C.ethash_light(hashR, pow.cache, pow.params, cMiningHash, cnonce)
ghash_light := C.GoBytes(unsafe.Pointer(hashR), 32)
return ghash_light
}
func (pow *Ethash) verify(hash []byte, diff *big.Int, nonce uint64) bool {
chash := (*C.uint8_t)(unsafe.Pointer(&hash))
cnonce := C.uint64_t(nonce)
C.ethash_light(pow.hash, pow.cache, pow.params, chash, cnonce)
verification := new(big.Int).Div(ethutil.BigPow(2, 256), diff)
res := ethutil.U256(new(big.Int).SetUint64(nonce))
ghash := C.GoBytes(unsafe.Pointer(pow.hash), 32)
log.Println("ethash light (on nonce)", ghash, nonce)
if res.Cmp(verification) <= 0 {
return true
}
return false
}