func (pow *Ethash) full(nonce uint64, miningHash []byte) []byte {
cMiningHash := (*C.uint8_t)(unsafe.Pointer(&miningHash))
cnonce := C.uint64_t(nonce)
log.Println("seed hash, nonce:", miningHash, nonce)
// pow.hash is the output/return of ethash_full
C.ethash_full(pow.hash, pow.cache.mem, pow.params, cMiningHash, cnonce)
ghash_full := C.GoBytes(unsafe.Pointer(pow.hash), 32)
return ghash_full
}
func (pow *Ethash) Search(block pow.Block, stop <-chan struct{}) []byte {
//r := rand.New(rand.NewSource(time.Now().UnixNano()))
miningHash := block.HashNoNonce()
diff := block.Difficulty()
//diff = big.NewInt(10000)
log.Println("difficulty", diff)
i := int64(0)
start := time.Now().UnixNano()
t := time.Now()
nonce := uint64(0) //uint64(r.Int63())
for {
select {
case <-stop:
powlogger.Infoln("Breaking from mining")
pow.HashRate = 0
return nil
default:
i++
if time.Since(t) > (1 * time.Second) {
elapsed := time.Now().UnixNano() - start
hashes := ((float64(1e9) / float64(elapsed)) * float64(i)) / 1000
pow.HashRate = int64(hashes)
powlogger.Infoln("Hashing @", pow.HashRate, "khash")
t = time.Now()
}
cMiningHash := (*C.uint8_t)(unsafe.Pointer(&miningHash))
cnonce := C.uint64_t(nonce)
log.Println("seed hash, nonce:", miningHash, nonce)
// pow.hash is the output/return of ethash_full
C.ethash_full(pow.hash, pow.cache.mem, pow.params, cMiningHash, cnonce)
ghash := C.GoBytes(unsafe.Pointer(pow.hash), 32)
log.Println("ethhash full (on nonce):", ghash, nonce)
if pow.verify(miningHash, diff, nonce) {
return ghash
}
nonce += 1
}
if !pow.turbo {
time.Sleep(20 * time.Microsecond)
}
}
return nil
}