Params & JSON file.

libdevcrypto/OverlayDB.cpp

@@ -56,10 +56,8 @@ void OverlayDB::commit()
 			if (m_aux.count(i))
 			{
 				m_db->Put(m_writeOptions, i.ref(), bytesConstRef(&m_aux[i]));
-				cdebug << "Committing aux: " << i;
 				m_aux.erase(i);
 			}
-		cdebug << "Discarding " << keysOf(m_aux);
 		m_auxActive.clear();
 		m_aux.clear();
 		m_over.clear();

libethcore/BlockInfo.cpp

@@ -25,13 +25,12 @@
 #include <libethcore/CommonEth.h>
 #include "ProofOfWork.h"
 #include "Exceptions.h"
+#include "Params.h"
 #include "BlockInfo.h"
 using namespace std;
 using namespace dev;
 using namespace dev::eth;
 
-u256 dev::eth::c_genesisDifficulty = (u256)1 << 11;
-
 BlockInfo::BlockInfo(): timestamp(Invalid256)
 {
 }
@@ -128,7 +127,7 @@ void BlockInfo::populateFromHeader(RLP const& _header, bool _checkNonce)
 	if (gasUsed > gasLimit)
 		BOOST_THROW_EXCEPTION(TooMuchGasUsed());
 
-	if (number && extraData.size() > 1024)
+	if (number && extraData.size() > c_maximumExtraDataSize)
 		BOOST_THROW_EXCEPTION(ExtraDataTooBig());
 }
 
@@ -185,23 +184,23 @@ void BlockInfo::populateFromParent(BlockInfo const& _parent)
 
 h256 BlockInfo::calculateSeedHash(BlockInfo const& _parent) const
 {
-	return number % 30 == 0 ? sha3(_parent.seedHash.asBytes()) : _parent.seedHash;
+	return number % c_epochDuration == 0 ? sha3(_parent.seedHash.asBytes()) : _parent.seedHash;
 }
 
 u256 BlockInfo::calculateGasLimit(BlockInfo const& _parent) const
 {
 	if (!parentHash)
-		return 1000000;
+		return c_genesisGasLimit;
 	else
-		return max<u256>(125000, (_parent.gasLimit * (1024 - 1) + (_parent.gasUsed * 6 / 5)) / 1024);
+		return max<u256>(c_minGasLimit, (_parent.gasLimit * (c_gasLimitBoundDivisor - 1) + (_parent.gasUsed * 6 / 5)) / c_gasLimitBoundDivisor);
 }
 
 u256 BlockInfo::calculateDifficulty(BlockInfo const& _parent) const
 {
 	if (!parentHash)
-		return c_genesisDifficulty;
+		return (u256)c_genesisDifficulty;
 	else
-		return max<u256>(2048, timestamp >= _parent.timestamp + 8 ? _parent.difficulty - (_parent.difficulty / 2048) : (_parent.difficulty + (_parent.difficulty / 2048)));
+		return max<u256>(c_minimumDifficulty, timestamp >= _parent.timestamp + c_durationLimit ? _parent.difficulty - (_parent.difficulty / c_difficultyBoundDivisor) : (_parent.difficulty + (_parent.difficulty / c_difficultyBoundDivisor)));
 }
 
 template <class N> inline N diff(N const& _a, N const& _b) { return max(_a, _b) - min(_a, _b); }
@@ -211,8 +210,8 @@ void BlockInfo::verifyParent(BlockInfo const& _parent) const
 	if (difficulty != calculateDifficulty(_parent))
 		BOOST_THROW_EXCEPTION(InvalidDifficulty());
 
-	if (diff(gasLimit, _parent.gasLimit) <= _parent.gasLimit / 2048)
-		BOOST_THROW_EXCEPTION(InvalidGasLimit(gasLimit, calculateGasLimit(_parent), diff(gasLimit, _parent.gasLimit), _parent.gasLimit / 2048));
+	if (diff(gasLimit, _parent.gasLimit) <= _parent.gasLimit / c_gasLimitBoundDivisor)
+		BOOST_THROW_EXCEPTION(InvalidGasLimit(gasLimit, calculateGasLimit(_parent), diff(gasLimit, _parent.gasLimit), _parent.gasLimit / c_gasLimitBoundDivisor));
 
 	if (seedHash != calculateSeedHash(_parent))
 		BOOST_THROW_EXCEPTION(InvalidSeedHash());

libethcore/BlockInfo.h

@@ -30,8 +30,6 @@ namespace dev
 namespace eth
 {
 
-extern u256 c_genesisDifficulty;
-
 enum IncludeNonce
 {
 	WithoutNonce = 0,

libevm/FeeStructure.cpp → libethcore/Params.cpp

@@ -19,7 +19,7 @@
  * @date 2014
  */
 
-#include "FeeStructure.h"
+#include "Params.h"
 
 using namespace std;
 namespace dev
@@ -28,6 +28,15 @@ namespace eth
 {
 
 //--- BEGIN: AUTOGENERATED FROM /feeStructure.json
+u256 const c_genesisDifficulty = 2048;
+u256 const c_maximumExtraDataSize = 1024;
+u256 const c_epochDuration = 3000;
+u256 const c_genesisGasLimit = 1000000;
+u256 const c_minGasLimit = 125000;
+u256 const c_gasLimitBoundDivisor = 1024;
+u256 const c_minimumDifficulty = 2048;
+u256 const c_difficultyBoundDivisor = 2048;
+u256 const c_durationLimit = 8;
 u256 const c_tierStepGas[] = {0, 2, 3, 5, 8, 10, 20, 0};
 u256 const c_expGas = 10;
 u256 const c_expByteGas = 10;

libevm/FeeStructure.h → libethcore/Params.h

@@ -29,6 +29,16 @@ namespace eth
 {
 
 //--- BEGIN: AUTOGENERATED FROM /feeStructure.json
+extern u256 const c_genesisDifficulty;
+extern u256 const c_maximumExtraDataSize;
+extern u256 const c_epochDuration;
+extern u256 const c_genesisGasLimit;
+extern u256 const c_minGasLimit;
+extern u256 const c_gasLimitBoundDivisor;
+extern u256 const c_minimumDifficulty;
+extern u256 const c_difficultyBoundDivisor;
+extern u256 const c_durationLimit;
+
 extern u256 const c_tierStepGas[8];			///< Once per operation, for a selection of them.
 extern u256 const c_expGas;					///< Once per EXP instuction.
 extern u256 const c_expByteGas;				///< Times ceil(log256(exponent)) for the EXP instruction.

libethcore/ProofOfWork.cpp

@@ -66,6 +66,7 @@ public:
 				writeFile(memoFile, m_caches[_header.seedHash]);
 			}
 		}
+		cdebug << "sha3 of cache: " << sha3(m_caches[_header.seedHash]);
 		return m_caches[_header.seedHash];
 	}
 
@@ -90,6 +91,7 @@ public:
 				writeFile(memoFile, m_fulls[_header.seedHash]);
 			}
 		}
+		cdebug << "sha3 of full pad: " << sha3(m_fulls[_header.seedHash]);
 		return m_fulls[_header.seedHash].data();
 	}
 

libethereum/Client.h

@@ -32,7 +32,7 @@
 #include <libdevcore/CommonIO.h>
 #include <libdevcore/Guards.h>
 #include <libdevcore/Worker.h>
-#include <libevm/FeeStructure.h>
+#include <libethcore/Params.h>
 #include <libp2p/Common.h>
 #include "CanonBlockChain.h"
 #include "TransactionQueue.h"

libethereum/Interface.h

@@ -25,7 +25,7 @@
 #include <libdevcore/CommonIO.h>
 #include <libdevcore/Guards.h>
 #include <libdevcrypto/Common.h>
-#include <libevm/FeeStructure.h>
+#include <libethcore/Params.h>
 #include "LogFilter.h"
 #include "Transaction.h"
 #include "AccountDiff.h"

libethereum/Precompiled.cpp

@@ -24,7 +24,7 @@
 #include <libdevcrypto/SHA3.h>
 #include <libdevcrypto/Common.h>
 #include <libethcore/CommonEth.h>
-#include <libevm/FeeStructure.h>
+#include <libethcore/Params.h>
 using namespace std;
 using namespace dev;
 using namespace dev::eth;

libethereum/State.h

@@ -30,7 +30,7 @@
 #include <libethcore/Exceptions.h>
 #include <libethcore/BlockInfo.h>
 #include <libethcore/ProofOfWork.h>
-#include <libevm/FeeStructure.h>
+#include <libethcore/Params.h>
 #include <libevm/ExtVMFace.h>
 #include "TransactionQueue.h"
 #include "Account.h"

libevm/All.h

@@ -1,5 +1,4 @@
 #pragma once
 
 #include "ExtVMFace.h"
-#include "FeeStructure.h"
 #include "VM.h"

libevm/VM.h

@@ -27,7 +27,7 @@
 #include <libevmcore/Instruction.h>
 #include <libdevcrypto/SHA3.h>
 #include <libethcore/BlockInfo.h>
-#include "FeeStructure.h"
+#include <libethcore/Params.h>
 #include "VMFace.h"
 
 namespace dev

libsolidity/Types.cpp

@@ -308,6 +308,8 @@ TypePointer IntegerConstantType::unaryOperatorResult(Token::Value _operator) con
 	case Token::Sub:
 		value = -m_value;
 		break;
+	case Token::After:
+		return shared_from_this();
 	default:
 		return TypePointer();
 	}

feeStructure.json → params.json

@@ -1,4 +1,14 @@
 var x = {
+    "genesisDifficulty": { "v": 2048, "d": "Difficulty of the Genesis block." },
+    "maximumExtraDataSize": { "v": 1024, "d": "Maximum size extra data may be after Genesis." },
+    "epochDuration": { "v": 3000, "d": "Duration between proof-of-work epochs." },
+    "genesisGasLimit": { "v": 1000000, "d": "Gas limit of the Genesis block." },
+    "minGasLimit": { "v": 125000, "d": "Minimum the gas limit may ever be." },
+    "gasLimitBoundDivisor": { "v": 1024, "d": "The bound divisor of the gas limit, used in update calculations." },
+    "minimumDifficulty": { "v": 2048, "d": "The minimum that the difficulty may ever be." },
+    "difficultyBoundDivisor": { "v": 2048, "d": "The bound divisor of the difficulty, used in the update calculations." },
+    "durationLimit": { "v": 8, "d": "The decision boundary on the blocktime duration used to determine whether difficulty should go up or not." },
+
     "tierStepGas": { "v": [ 0, 2, 3, 5, 8, 10, 20 ], "d": "Once per operation, for a selection of them." },
 	"expGas": { "v": 10, "d": "Once per EXP instuction." },
 	"expByteGas": { "v": 10, "d": "Times ceil(log256(exponent)) for the EXP instruction." },