[Dev] Documenting Feathercoin Specific Software settings - Part 2
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/m4/bitcoin_find_bdb51.m4
ACP and neoscrypt commit. New file 66 lines.
[FAQ] What is a .m4 file?
m4 is a general-purpose macro processor included in all UNIX-like operating systems, and is a component of the POSIX standard.
The language was designed by Brian Kernighan and Dennis Ritchie for the original versions of UNIX. It is an extension of an earlier macro processor m3, written by Ritchie for the AP-3 minicomputer.[1]
The macro preprocessor operates as a text-replacement tool. It is employed to re-use text templates, typically in computer programming applications, but also in text editing and text-processing applications. Most users require m4 as a dependency of GNU autoconf.
https://en.wikipedia.org/wiki/M4_(computer_language)
+ AC_DEFUN([BITCOIN_FIND_BDB51],[ + AC_MSG_CHECKING([for Berkeley DB C + + headers]) + BDB_CPPFLAGS= + BDB_LIBS= + bdbpath=X + bdb51path=X + bdbdirlist= + for _vn in 5.1 51 5 ''; do + for _pfx in b lib ''; do + bdbdirlist="$bdbdirlist ${_pfx}db${_vn}" + done + done + for searchpath in $bdbdirlist ''; do
Start of Additional code
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/m4/bitcoin_qt.m4
ACP and neoscrypt commit.
+ AC_MSG_WARN([$1; feathercoin-qt frontend will not be built]) + AC_MSG_CHECKING(whether to build Feathercoin Core GUI)
Name changes to feathercoin
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/main.cpp
ACP and neoscrypt commit. 2nd commit
+#include "checkpointsync.h" +unsigned int nTransactionsUpdated = 0; + +int nBaseMaturity = BASE_MATURITY; + int nBestHeight = -1; + uint256 nBestChainWork = 0; + uint256 nBestInvalidWork = 0; + uint256 hashBestChain = 0; + CBlockIndex* pindexBest = NULL;
Additional code
-// The 1st hard fork -const int nForkOne = 33000; -// The 2nd hard fork -const int nForkTwo = 87948; -// The 3rd hard fork -const int nForkThree = 204639;
Bitcoin fork code removed
+ static CBigNum bnProofOfWorkLimit(~uint256(0) >> 20); // Feathercoin: starting difficulty is 1 / 2^12 + /* The difficulty after switching to NeoScrypt (0.015625) */ + static CBigNum bnNeoScryptSwitch(~uint256(0) >> 26); + +
Bitcoin code replaced with Neoscrypt code.
+map<uint256, CBlock*> mapOrphanBlocksA; + +static CBlockIndex* pblockindexFBBHLast;
Added code
+ if(nHeight >= nForkThree || (TestNet()))
Bitcoin fork code replaced
- // Subsidy is cut in half every 2100000 blocks, which will occur approximately every 4 years
- nSubsidy >>= (nHeight / 1799985); // 200,010 blocks at 200FTC and 1,599,975 at 80FTC
+ // Halving subsidy happens every 2,100,000 blocks. The code below takes account for the + // fact that the first 204,639 blocks took 2.5 minutes and after changed to 1 minute. + nSubsidy >>= (nHeight + 306960) / 2100000;
Bitcoin code replaced
+ return nSubsidy + nFees;
Code moved
+// Feathercoin: eHRC at 3rd hard fork
FTC code updated
+ /* The 4th hard fork and testnet hard fork */ + if((nHeight >= nForkFour) || (TestNet && (nHeight >= nTestnetFork))) { + if(!fNeoScrypt) fNeoScrypt = true; + /* Difficulty reset after the switch */ + if((nHeight == nForkFour) || (TestNet() && (nHeight == nTestnetFork))) + return(bnNeoScryptSwitch.GetCompact()); + } +
Fork included
- if (TestNet()) fHardFork = false;
Bitcoin code removed
+ bool fHardFork = (nHeight == nForkOne) || (nHeight == nForkTwo) || (nHeight == nForkThree) || (nHeight == nForkFour); + if(TestNet()) { + if (nHeight == nTestnetFork) { + fHardFork = true; + } else { + fHardFork = false; + } + }
Code Added
+ // Additional averaging over 4x nInterval window + if((nHeight >= nForkTwo) && (nHeight < nForkThree)) { + nInterval *= 4; + + const CBlockIndex* pindexFirst = pindexLast; + for(int i = 0; pindexFirst && i < nInterval; i + + ) + pindexFirst = pindexFirst->pprev; + + int nActualTimespanLong = + (pindexLast->GetBlockTime() - pindexFirst->GetBlockTime())/4; + + // Average between short and long windows + int nActualTimespanAvg = (nActualTimespan + nActualTimespanLong)/2; + + // Apply .25 damping + nActualTimespan = nActualTimespanAvg + 3*nTargetTimespan; + nActualTimespan /= 4; + + LogPrintf("RETARGET: nActualTimespanLong = %d, nActualTimeSpanAvg = %d, nActualTimespan (damped) = %d\n", + nActualTimespanLong, nActualTimespanAvg, nActualTimespan); + } +
Code added
+ LogPrintf("pindex->GetBlockHash()=%s \n",pindex->GetBlockHash().ToString()); + LogPrintf("view.GetBestBlock()=%s \n",view.GetBestBlock().ToString());
Code added
+ LogPrintf("ConnectBlock hashPrevBlock=%s \n",hashPrevBlock.ToString()); + LogPrintf("ConnectBlock view.GetBestBlock()=%s \n",view.GetBestBlock().ToString()); +
Code added
+ + if (!IsSyncCheckpointEnforced()) // checkpoint advisory mode + { + if (pindexBest->pprev && !CheckSyncCheckpoint(pindexBest->GetBlockHash(), pindexBest->pprev)) + strCheckpointWarning = _("Warning: checkpoint on different blockchain fork, contact developers to resolve the issue"); + else + strCheckpointWarning = ""; + } } }
Checkpointing code added
+ //0.8.7 ACP code have some problem in 0.9.3,so I delete them. + bool SetBestChain(CValidationState &state, CBlockIndex* pindexNew) + { + return true; + } +
Checkpointing code added
+ + // ppcoin: check that the block satisfies synchronized checkpoint + // checkpoint advisory mode + if (!IsSyncCheckpointEnforced() && !CheckSyncCheckpoint(hash, pindexPrev)) + return error("checkpoint AcceptBlock() : rejected by synchronized checkpoint");
Checkpointing code
+ + // ppcoin: check pending sync-checkpoint + AcceptPendingSyncCheckpoint();
Checkpointing code
+ + // ppcoin: ask for pending sync-checkpoint if any + if (!IsInitialBlockDownload()) + AskForPendingSyncCheckpoint(pfrom);
Checkpointing code
+ + // ppcoin: if responsible for sync-checkpoint send it + if (pfrom && !CSyncCheckpoint::strMasterPrivKey.empty() && + (int)GetArg("-checkpointdepth", -1) >= 0) + SendSyncCheckpoint(AutoSelectSyncCheckpoint()); +
Checkpointing code
+ + // ppcoin: load hashSyncCheckpoint + if (!pblocktree->ReadSyncCheckpoint(hashSyncCheckpoint)) + LogPrintf("LoadBlockIndexDB(): synchronized checkpoint not read\n"); + else + LogPrintf("LoadBlockIndexDB(): synchronized checkpoint %s\n", hashSyncCheckpoint.ToString().c_str());
Checkpointing code
+ + // ppcoin: initialize synchronized checkpoint + if (!WriteSyncCheckpoint(Params().HashGenesisBlock())) + return error("LoadBlockIndex() : failed to init sync checkpoint");
Checkpointing code
+ // ppcoin: if checkpoint master key changed must reset sync-checkpoint + if (!CheckCheckpointPubKey()) + return error("LoadBlockIndex() : failed to reset checkpoint master pubkey");
Checkpointing code
+ // Checkpoint warning + if (strCheckpointWarning != "") + { + nPriority = 900; + strStatusBar = strCheckpointWarning; + }
Checkpointing code
+ + // ppcoin: if detected invalid checkpoint enter safe mode + if (hashInvalidCheckpoint != 0) + { + nPriority = 3000; + strStatusBar = strRPC = _("WARNING: Inconsistent checkpoint found! Stop enforcing checkpoints and notify developers to resolve the issue."); + }
Checkpointing
+ + // ppcoin: relay sync-checkpoint + { + LOCK(cs_hashSyncCheckpoint); + if (!checkpointMessage.IsNull()) + checkpointMessage.RelayTo(pfrom); + }
Checkpointing
+ + // ppcoin: ask for pending sync-checkpoint if any + if (!IsInitialBlockDownload()) + AskForPendingSyncCheckpoint(pfrom);
Checkpointing
+ else if (strCommand == "checkpoint") // ppcoin synchronized checkpoint + { + CSyncCheckpoint checkpoint; + vRecv >> checkpoint; + + if (checkpoint.ProcessSyncCheckpoint(pfrom)) + { + // Relay + pfrom->hashCheckpointKnown = checkpoint.hashCheckpoint; + LOCK(cs_vNodes); + BOOST_FOREACH(CNode* pnode, vNodes) + checkpoint.RelayTo(pnode); + } + }
Checkpointing
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/main.h
ACP and neoscrypt commit. 2nd commit
+#include "neoscrypt.h" + /* Maturity threshold for PoW base transactions, in blocks (confirmations) */ + extern int nBaseMaturity; + static const int BASE_MATURITY = 100; +
Additional code
+ // The 1st hard fork + const int nForkOne = 33000; + // The 2nd hard fork + const int nForkTwo = 87948; + // The 3rd hard fork + const int nForkThree = 204639; + // The 4th hard fork + const int nForkFour = 432000; + + static const int nTestnetFork = 600; + + static const unsigned int nSwitchV2 = 1413936000; // Wed, 22 Oct 2014 00:00:00 GMT + static const unsigned int nTestnetSwitchV2 = 1406473140; // Sun, 27 Jul 2014 14:59:00 GMT + +
Additional code
+ extern int nBestHeight; + extern uint256 nBestChainWork; + extern uint256 nBestInvalidWork; + extern uint256 hashBestChain; + extern CBlockIndex* pindexBest; + extern unsigned int nTransactionsUpdated; +extern std::map<uint256, CBlock*> mapOrphanBlocksA; //for checkpointsync.cpp
Additional code
+/** Connect/disconnect blocks until pindexNew is the new tip of the active block chain */ +bool SetBestChain(CValidationState &state, CBlockIndex* pindexNew);
Additional code
+ // (memory only) pointer to the index of the *active* successor of this block + CBlockIndex* pnext; +
Additional code
+ pnext = NULL; + pnext = NULL; + + bool IsInMainChain() const + { + return (pnext || this == pindexBest); + }
Additional code
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/miner.cpp
ACP and neoscrypt commit.
+ unsigned int profile = fNeoScrypt ? 0x0 : 0x3;
Additional code
- char scratchpad[SCRYPT_SCRATCHPAD_SIZE];
Bitcoin code removed
- scrypt_1024_1_1_256_sp(BEGIN(pblock->nVersion), BEGIN(thash), scratchpad);
Bitcoin code replaced
+ //scrypt_1024_1_1_256_sp(BEGIN(pblock->nVersion), BEGIN(thash), scratchpad); + neoscrypt((unsigned char *) &pblock->nVersion, (unsigned char *) &hash, profile);
Bitcoin code replaced
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/neoscrypt.c
ACP and neoscrypt commit. Large New file
/* * Copyright (c) 2009 Colin Percival, 2011 ArtForz * Copyright (c) 2012 Andrew Moon (floodyberry) * Copyright (c) 2012 Samuel Neves <sneves@dei.uc.pt> * Copyright (c) 2014 John Doering <ghostlander@phoenixcoin.org> * All rights reserved. #include <stdlib.h> #include <stdint.h> #include <string.h> #include "neoscrypt.h"
Start of neoscrypt code
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/neoscrypt.h
ACP and neoscrypt commit. Large New file
+ #if (__cplusplus) + extern "C" { + #endif + + void neoscrypt(const unsigned char *input, unsigned char *output, unsigned int profile); + + #if (__cplusplus) + } + #else + + #define SCRYPT_BLOCK_SIZE 64 + #define SCRYPT_HASH_BLOCK_SIZE 64 + #define SCRYPT_HASH_DIGEST_SIZE 32 + + typedef uint8_t hash_digest[SCRYPT_HASH_DIGEST_SIZE];
Start of new code.
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/neoscrypt_asm.S
ACP and neoscrypt commit. Large New file
#if (ASM) && (__x86_64__) /* neoscrypt_blkcpy(dst, src, len) = SSE2 based block memcpy(); * len must be a multiple of 64 bytes aligned properly */ .globl neoscrypt_blkcpy neoscrypt_blkcpy: #if (WIN64) movq %rdi, %r10 movq %rsi, %r11 movq %rcx, %rdi movq %rdx, %rsi movq %r8, %rdx #endif
Start of code full file. 735 lines
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/net.cpp
ACP and neoscrypt commit.
+ void CNode::PushGetBlocks(CBlockIndex* pindexBegin, uint256 hashEnd) + { + // main.h:PushGetBlocks(CNode* pnode, CBlockIndex* pindexBegin, uint256 hashEnd); + // Filter out duplicate requests + /*if (pindexBegin == pindexLastGetBlocksBegin && hashEnd == hashLastGetBlocksEnd) + return; + pindexLastGetBlocksBegin = pindexBegin; + hashLastGetBlocksEnd = hashEnd; + + PushMessage("getblocks", CBlockLocator(pindexBegin), hashEnd);*/ //'CBlockIndex*' to 'const CBlockLocator&' + } +
pindex code addition
+ for (int nHost = 1; nHost <= 2; nHost++)
Bitcoin Code replaced (seen this before?)
+ else if (nHost == 2) + { + addrConnect = CService("74.208.43.192", 80); // www.showmyip.com + + if (nLookup == 1) + { + CService addrIP("www.showmyip.com", 80, true); + if (addrIP.IsValid()) + addrConnect = addrIP; + } + + pszGet = "GET /simple/ HTTP/1.1\r\n" + "Host: www.showmyip.com\r\n" + "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n" + "Connection: close\r\n" + "\r\n"; + + pszKeyword = NULL; // Returns just IP address + }
Needs review. ACP site?
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/net.h
ACP and neoscrypt commit.
+ /** The maximum number of entries in mapAskFor */ + static const size_t MAPASKFOR_MAX_SZ = MAX_INV_SZ;
Additional code
+ struct LocalServiceInfo { + int nScore; + int nPort; + }; + + extern CCriticalSection cs_mapLocalHost; + extern map<CNetAddr, LocalServiceInfo> mapLocalHost;
Additional code
- std::set<CAddress> setAddrKnown; + mruset<CAddress> setAddrKnown;
Bitcoin code replaced
+ uint256 hashCheckpointKnown; //ppcoin: known sent sync-checkpoint
Additional checkpoint code
- CNode(SOCKET hSocketIn, CAddress addrIn, std::string addrNameIn = "", bool fInboundIn=false) : ssSend(SER_NETWORK, INIT_PROTO_VERSION) + CNode(SOCKET hSocketIn, CAddress addrIn, std::string addrNameIn = "", bool fInboundIn=false) : ssSend(SER_NETWORK, INIT_PROTO_VERSION), setAddrKnown(5000)
Bitcoin code replaced
+ if (mapAskFor.size() > MAPASKFOR_MAX_SZ) + return; + + + void PushGetBlocks(CBlockIndex* pindexBegin, uint256 hashEnd);
Additional code
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/qt/Makefile.am
ACP and neoscrypt commit.
+ forms/transactiondescdialog.ui \ + forms/merchantlist.ui
BBitcoin code replaced, new line.
+ moc_walletview.cpp \ + moc_reportview.cpp \ + moc_merchantlist.cpp
Directory positioning changed? Additional code
+ merchantlist.moc \
Additional code
+ winshutdownmonitor.h \ + reportview.h \ + merchantlist.h
Directory positioning changed? Additional code
+ res/icons/tx_mined.png \ + res/icons/merchantList.png \ + res/icons/openurl.png \ + res/icons/account-report.png
Directory positioning changed? Additional code
+ walletview.cpp \ + reportview.cpp \ + merchantlist.cpp
Directory positioning changed? Additional code
+ res/images/splash_testnet.png \ + res/images/LOGO.png \ + res/images/mainbg.png \ + res/images/about_bitcoin.png \ + res/images/about.png \ + res/images/feathercoinmap.png \ + res/images/bitcoinbazaar.co.uk.png \ + res/images/pockio.png \ + res/images/btc-e.png \ + res/images/bter.png \ + res/images/cm.png \ + res/images/cryptsy.png \ + res/images/ct.png \ + res/images/mc.png
Bitcoin Directory positioning changed? Additional code
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/rpcserver.cpp
ACP and neoscrypt commit.
+ if (dAmount <= 0.0 || dAmount > 21000000*16)
Bitcoin code replaced
+ /* Wallet-ACP */ + { "getcheckpoint", &getcheckpoint, true, false, true }, + { "sendcheckpoint", &sendcheckpoint, true, false, true }, + { "enforcecheckpoint", &enforcecheckpoint, true, false, true },
Additional code checkpoints
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/rpcserver.h
ACP and neoscrypt commit.
+ extern json_spirit::Value getcheckpoint(const json_spirit::Array& params, bool fHelp); // in checkpointsync.cpp + extern json_spirit::Value sendcheckpoint(const json_spirit::Array& params, bool fHelp); + extern json_spirit::Value enforcecheckpoint(const json_spirit::Array& params, bool fHelp);
Add checkpoint code
+ extern json_spirit::Value getblockchaininfo(const json_spirit::Array& params, bool fHelp); + extern json_spirit::Value getnetworkinfo(const json_spirit::Array& params, bool fHelp);
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/txdb.cpp
ACP and neoscrypt commit.
+ return error("%s : Deserialize or I/O error - %s", __func__, e.what());
Bitcoin code replaced
+ return error("%s : Deserialize or I/O error - %s", __func__, e.what());
Bitcoin code replaced
+ + bool CBlockTreeDB::ReadSyncCheckpoint(uint256& hashCheckpoint) + { + return Read(string("hashSyncCheckpoint"), hashCheckpoint); + } + + bool CBlockTreeDB::WriteSyncCheckpoint(uint256 hashCheckpoint) + { + return Write(string("hashSyncCheckpoint"), hashCheckpoint); + } + + bool CBlockTreeDB::ReadCheckpointPubKey(string& strPubKey) + { + return Read(string("strCheckpointPubKey"), strPubKey); + } + + bool CBlockTreeDB::WriteCheckpointPubKey(const string& strPubKey) + { + return Write(string("strCheckpointPubKey"), strPubKey); + }
Additional checkpoint code.
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/txdb.h
ACP and neoscrypt commit.
+ + // ppcoin sync checkpoint related data + bool ReadSyncCheckpoint(uint256& hashCheckpoint); + bool WriteSyncCheckpoint(uint256 hashCheckpoint); + bool ReadCheckpointPubKey(std::string& strPubKey); + bool WriteCheckpointPubKey(const std::string& strPubKey);
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/uint256.h
ACP and neoscrypt commit.
+ typedef long long int64; + typedef unsigned long long uint64; +
Additional variables.
-
Feathercoin specific changes made to convert Bitcoin to FTC 0.9.6.*
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/util.cpp
ACP and neoscrypt commit.
+bool fNeoScrypt = false;
Addition neoscrypt variable.
-
Add Implemented ACP and neoscrypt commit
https://github.com/FeatherCoin/Feathercoin/commit/c8ca4c906144910c62acd34e23a4ed624c0fbf7dsrc/util.h
ACP and neoscrypt commit.
+extern bool fNeoScrypt;
Addition neoscrypt variable.