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consensus, core/*, params: metropolis preparation refactor

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This commit is a preparation for the upcoming metropolis hardfork. It
prepares the state, core and vm packages such that integration with
metropolis becomes less of a hassle.

* Difficulty calculation requires header instead of individual
  parameters
* statedb.StartRecord renamed to statedb.Prepare and added Finalise
  method required by metropolis, which removes unwanted accounts from
  the state (i.e. selfdestruct)
* State keeps record of destructed objects (in addition to dirty
  objects)
* core/vm pre-compiles may now return errors
* core/vm pre-compiles gas check now take the full byte slice as argument
  instead of just the size
* core/vm now keeps several hard-fork instruction tables instead of a
  single instruction table and removes the need for hard-fork checks in
  the instructions
* core/vm contains a empty restruction function which is added in
  preparation of metropolis write-only mode operations
* Adds the bn256 curve
* Adds and sets the metropolis chain config block parameters (2^64-1)
This commit is contained in:
Jeffrey Wilcke
2017-02-01 22:36:51 +01:00
parent a2f23ca9b1
commit 10a57fc3d4
28 changed files with 2865 additions and 183 deletions
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8
params/util.go
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@ -17,6 +17,7 @@
package params
import (
"math"
"math/big"
"github.com/ethereum/go-ethereum/common"
@ -38,6 +39,9 @@ var (
TestNetSpuriousDragon = big.NewInt(10)
MainNetSpuriousDragon = big.NewInt(2675000)
TestNetChainID = big.NewInt(3) // Testnet default chain ID
MainNetChainID = big.NewInt(1) // Mainnet default chain ID
TestNetMetropolisBlock = big.NewInt(math.MaxInt64)
MainNetMetropolisBlock = big.NewInt(math.MaxInt64)
TestNetChainID = big.NewInt(3) // Test net default chain ID
MainNetChainID = big.NewInt(1) // main net default chain ID
)