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core: added basic chain configuration

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Added chain configuration options and write out during genesis database
insertion. If no "config" was found, nothing is written to the database.

Configurations are written on a per genesis base. This means
that any chain (which is identified by it's genesis hash) can have their
own chain settings.
This commit is contained in:
Jeffrey Wilcke
2016-03-01 23:32:43 +01:00
committed by Jeffrey Wilcke
parent 10d3466c93
commit f0cbebb19f
55 changed files with 732 additions and 431 deletions
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19
core/headerchain.go
View File

@ -40,6 +40,8 @@ import (
// It is not thread safe either, the encapsulating chain structures should do
// the necessary mutex locking/unlocking.
type HeaderChain struct {
config *ChainConfig
chainDb ethdb.Database
genesisHeader *types.Header
@ -62,7 +64,7 @@ type getHeaderValidatorFn func() HeaderValidator
// getValidator should return the parent's validator
// procInterrupt points to the parent's interrupt semaphore
// wg points to the parent's shutdown wait group
func NewHeaderChain(chainDb ethdb.Database, getValidator getHeaderValidatorFn, procInterrupt func() bool) (*HeaderChain, error) {
func NewHeaderChain(chainDb ethdb.Database, config *ChainConfig, getValidator getHeaderValidatorFn, procInterrupt func() bool) (*HeaderChain, error) {
headerCache, _ := lru.New(headerCacheLimit)
tdCache, _ := lru.New(tdCacheLimit)
@ -73,6 +75,7 @@ func NewHeaderChain(chainDb ethdb.Database, getValidator getHeaderValidatorFn, p
}
hc := &HeaderChain{
config: config,
chainDb: chainDb,
headerCache: headerCache,
tdCache: tdCache,
@ -436,15 +439,17 @@ func (hc *HeaderChain) SetGenesis(head *types.Header) {
//
// headerValidator implements HeaderValidator.
type headerValidator struct {
hc *HeaderChain // Canonical header chain
Pow pow.PoW // Proof of work used for validating
config *ChainConfig
hc *HeaderChain // Canonical header chain
Pow pow.PoW // Proof of work used for validating
}
// NewBlockValidator returns a new block validator which is safe for re-use
func NewHeaderValidator(chain *HeaderChain, pow pow.PoW) HeaderValidator {
func NewHeaderValidator(config *ChainConfig, chain *HeaderChain, pow pow.PoW) HeaderValidator {
return &headerValidator{
Pow: pow,
hc: chain,
config: config,
Pow: pow,
hc: chain,
}
}
@ -460,5 +465,5 @@ func (v *headerValidator) ValidateHeader(header, parent *types.Header, checkPow
if v.hc.HasHeader(header.Hash()) {
return nil
}
return ValidateHeader(v.Pow, header, parent, checkPow, false)
return ValidateHeader(v.config, v.Pow, header, parent, checkPow, false)
}