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-rw-r--r--src/miner.cpp203
1 files changed, 0 insertions, 203 deletions
diff --git a/src/miner.cpp b/src/miner.cpp
index c454c0279c..41f4f1cdb6 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -315,206 +315,3 @@ void IncrementExtraNonce(CBlock* pblock, const CBlockIndex* pindexPrev, unsigned
pblock->vtx[0] = txCoinbase;
pblock->hashMerkleRoot = BlockMerkleRoot(*pblock);
}
-
-//////////////////////////////////////////////////////////////////////////////
-//
-// Internal miner
-//
-
-//
-// ScanHash scans nonces looking for a hash with at least some zero bits.
-// The nonce is usually preserved between calls, but periodically or if the
-// nonce is 0xffff0000 or above, the block is rebuilt and nNonce starts over at
-// zero.
-//
-bool static ScanHash(const CBlockHeader *pblock, uint32_t& nNonce, uint256 *phash)
-{
- // Write the first 76 bytes of the block header to a double-SHA256 state.
- CHash256 hasher;
- CDataStream ss(SER_NETWORK, PROTOCOL_VERSION);
- ss << *pblock;
- assert(ss.size() == 80);
- hasher.Write((unsigned char*)&ss[0], 76);
-
- while (true) {
- nNonce++;
-
- // Write the last 4 bytes of the block header (the nonce) to a copy of
- // the double-SHA256 state, and compute the result.
- CHash256(hasher).Write((unsigned char*)&nNonce, 4).Finalize((unsigned char*)phash);
-
- // Return the nonce if the hash has at least some zero bits,
- // caller will check if it has enough to reach the target
- if (((uint16_t*)phash)[15] == 0)
- return true;
-
- // If nothing found after trying for a while, return -1
- if ((nNonce & 0xfff) == 0)
- return false;
- }
-}
-
-static bool ProcessBlockFound(const CBlock* pblock, const CChainParams& chainparams)
-{
- LogPrintf("%s\n", pblock->ToString());
- LogPrintf("generated %s\n", FormatMoney(pblock->vtx[0].vout[0].nValue));
-
- // Found a solution
- {
- LOCK(cs_main);
- if (pblock->hashPrevBlock != chainActive.Tip()->GetBlockHash())
- return error("BitcoinMiner: generated block is stale");
- }
-
- // Inform about the new block
- GetMainSignals().BlockFound(pblock->GetHash());
-
- // Process this block the same as if we had received it from another node
- CValidationState state;
- if (!ProcessNewBlock(state, chainparams, NULL, pblock, true, NULL))
- return error("BitcoinMiner: ProcessNewBlock, block not accepted");
-
- return true;
-}
-
-void static BitcoinMiner(const CChainParams& chainparams)
-{
- LogPrintf("BitcoinMiner started\n");
- SetThreadPriority(THREAD_PRIORITY_LOWEST);
- RenameThread("bitcoin-miner");
-
- unsigned int nExtraNonce = 0;
-
- boost::shared_ptr<CReserveScript> coinbaseScript;
- GetMainSignals().ScriptForMining(coinbaseScript);
-
- try {
- // Throw an error if no script was provided. This can happen
- // due to some internal error but also if the keypool is empty.
- // In the latter case, already the pointer is NULL.
- if (!coinbaseScript || coinbaseScript->reserveScript.empty())
- throw std::runtime_error("No coinbase script available (mining requires a wallet)");
-
- while (true) {
- if (chainparams.MiningRequiresPeers()) {
- // Busy-wait for the network to come online so we don't waste time mining
- // on an obsolete chain. In regtest mode we expect to fly solo.
- do {
- bool fvNodesEmpty;
- {
- LOCK(cs_vNodes);
- fvNodesEmpty = vNodes.empty();
- }
- if (!fvNodesEmpty && !IsInitialBlockDownload())
- break;
- MilliSleep(1000);
- } while (true);
- }
-
- //
- // Create new block
- //
- unsigned int nTransactionsUpdatedLast = mempool.GetTransactionsUpdated();
- CBlockIndex* pindexPrev = chainActive.Tip();
-
- auto_ptr<CBlockTemplate> pblocktemplate(CreateNewBlock(chainparams, coinbaseScript->reserveScript));
- if (!pblocktemplate.get())
- {
- LogPrintf("Error in BitcoinMiner: Keypool ran out, please call keypoolrefill before restarting the mining thread\n");
- return;
- }
- CBlock *pblock = &pblocktemplate->block;
- IncrementExtraNonce(pblock, pindexPrev, nExtraNonce);
-
- LogPrintf("Running BitcoinMiner with %u transactions in block (%u bytes)\n", pblock->vtx.size(),
- ::GetSerializeSize(*pblock, SER_NETWORK, PROTOCOL_VERSION));
-
- //
- // Search
- //
- int64_t nStart = GetTime();
- arith_uint256 hashTarget = arith_uint256().SetCompact(pblock->nBits);
- uint256 hash;
- uint32_t nNonce = 0;
- while (true) {
- // Check if something found
- if (ScanHash(pblock, nNonce, &hash))
- {
- if (UintToArith256(hash) <= hashTarget)
- {
- // Found a solution
- pblock->nNonce = nNonce;
- assert(hash == pblock->GetHash());
-
- SetThreadPriority(THREAD_PRIORITY_NORMAL);
- LogPrintf("BitcoinMiner:\n");
- LogPrintf("proof-of-work found \n hash: %s \ntarget: %s\n", hash.GetHex(), hashTarget.GetHex());
- ProcessBlockFound(pblock, chainparams);
- SetThreadPriority(THREAD_PRIORITY_LOWEST);
- coinbaseScript->KeepScript();
-
- // In regression test mode, stop mining after a block is found.
- if (chainparams.MineBlocksOnDemand())
- throw boost::thread_interrupted();
-
- break;
- }
- }
-
- // Check for stop or if block needs to be rebuilt
- boost::this_thread::interruption_point();
- // Regtest mode doesn't require peers
- if (vNodes.empty() && chainparams.MiningRequiresPeers())
- break;
- if (nNonce >= 0xffff0000)
- break;
- if (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast && GetTime() - nStart > 60)
- break;
- if (pindexPrev != chainActive.Tip())
- break;
-
- // Update nTime every few seconds
- if (UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev) < 0)
- break; // Recreate the block if the clock has run backwards,
- // so that we can use the correct time.
- if (chainparams.GetConsensus().fPowAllowMinDifficultyBlocks)
- {
- // Changing pblock->nTime can change work required on testnet:
- hashTarget.SetCompact(pblock->nBits);
- }
- }
- }
- }
- catch (const boost::thread_interrupted&)
- {
- LogPrintf("BitcoinMiner terminated\n");
- throw;
- }
- catch (const std::runtime_error &e)
- {
- LogPrintf("BitcoinMiner runtime error: %s\n", e.what());
- return;
- }
-}
-
-void GenerateBitcoins(bool fGenerate, int nThreads, const CChainParams& chainparams)
-{
- static boost::thread_group* minerThreads = NULL;
-
- if (nThreads < 0)
- nThreads = GetNumCores();
-
- if (minerThreads != NULL)
- {
- minerThreads->interrupt_all();
- delete minerThreads;
- minerThreads = NULL;
- }
-
- if (nThreads == 0 || !fGenerate)
- return;
-
- minerThreads = new boost::thread_group();
- for (int i = 0; i < nThreads; i++)
- minerThreads->create_thread(boost::bind(&BitcoinMiner, boost::cref(chainparams)));
-}
generated by cgit v1.2.3 (git 2.26.2) at 2024-07-19 16:55:43 +0000