func ConfigBlock(reader blockledger.Reader) *cb.Block
ConfigBlock retrieves the last configuration block from the given ledger. Panics on failure.
BlockWriter efficiently writes the blockchain to disk. To safely use BlockWriter, only one thread should interact with it. BlockWriter will spawn additional committing go routines and handle locking so that these other go routines safely interact with the calling one.
type BlockWriter struct {
// contains filtered or unexported fields
}
func (bw *BlockWriter) CreateNextBlock(messages []*cb.Envelope) *cb.Block
CreateNextBlock creates a new block with the next block number, and the given contents.
func (bw *BlockWriter) WriteBlock(block *cb.Block, encodedMetadataValue []byte)
WriteBlock should be invoked for blocks which contain normal transactions. It sets the target block as the pending next block, and returns before it is committed. Before returning, it acquires the committing lock, and spawns a go routine which will annotate the block with metadata and signatures, and write the block to the ledger then release the lock. This allows the calling thread to begin assembling the next block before the commit phase is complete.
func (bw *BlockWriter) WriteConfigBlock(block *cb.Block, encodedMetadataValue []byte)
WriteConfigBlock should be invoked for blocks which contain a config transaction. This call will block until the new config has taken effect, then will return while the block is written asynchronously to disk.
ChainSupport holds the resources for a particular channel.
type ChainSupport struct {
msgprocessor.Processor
*BlockWriter
consensus.Chain
crypto.LocalSigner
// contains filtered or unexported fields
}
func (cs *ChainSupport) Append(block *cb.Block) error
Append appends a new block to the ledger in its raw form, unlike WriteBlock that also mutates its metadata.
func (cs *ChainSupport) Block(number uint64) *cb.Block
Block returns a block with the following number, or nil if such a block doesn't exist.
func (cs *ChainSupport) BlockCutter() blockcutter.Receiver
BlockCutter returns the blockcutter.Receiver instance for this channel.
func (cs *ChainSupport) ChainID() string
ChainID passes through to the underlying configtx.Validator
func (cs *ChainSupport) ConfigProto() *cb.Config
ConfigProto passes through to the underlying configtx.Validator
func (cs *ChainSupport) ProposeConfigUpdate(configtx *cb.Envelope) (*cb.ConfigEnvelope, error)
ProposeConfigUpdate passes through to the underlying configtx.Validator
func (cs *ChainSupport) Reader() blockledger.Reader
func (cs *ChainSupport) Sequence() uint64
Sequence passes through to the underlying configtx.Validator
func (cs *ChainSupport) Signer() crypto.LocalSigner
Signer returns the crypto.Localsigner for this channel.
func (cs *ChainSupport) Validate(configEnv *cb.ConfigEnvelope) error
Validate passes through to the underlying configtx.Validator
func (cs *ChainSupport) VerifyBlockSignature(sd []*cb.SignedData, envelope *cb.ConfigEnvelope) error
VerifyBlockSignature verifies a signature of a block. It has an optional argument of a configuration envelope which would make the block verification to use validation rules based on the given configuration in the ConfigEnvelope. If the config envelope passed is nil, then the validation rules used are the ones that were applied at commit of previous blocks.
Registrar serves as a point of access and control for the individual channel resources.
type Registrar struct {
// contains filtered or unexported fields
}
func NewRegistrar(
config localconfig.TopLevel,
ledgerFactory blockledger.Factory,
signer crypto.LocalSigner,
metricsProvider metrics.Provider,
callbacks ...channelconfig.BundleActor) *Registrar
NewRegistrar produces an instance of a *Registrar.
func (r *Registrar) BroadcastChannelSupport(msg *cb.Envelope) (*cb.ChannelHeader, bool, *ChainSupport, error)
BroadcastChannelSupport returns the message channel header, whether the message is a config update and the channel resources for a message or an error if the message is not a message which can be processed directly (like CONFIG and ORDERER_TRANSACTION messages)
func (r *Registrar) ChannelsCount() int
ChannelsCount returns the count of the current total number of channels.
func (r *Registrar) CreateBundle(channelID string, config *cb.Config) (channelconfig.Resources, error)
CreateBundle calls channelconfig.NewBundle
func (r *Registrar) CreateChain(chainName string)
CreateChain makes the Registrar create a chain with the given name.
func (r *Registrar) GetChain(chainID string) *ChainSupport
GetChain retrieves the chain support for a chain if it exists.
func (r *Registrar) Initialize(consenters map[string]consensus.Consenter)
func (r *Registrar) NewChannelConfig(envConfigUpdate *cb.Envelope) (channelconfig.Resources, error)
NewChannelConfig produces a new template channel configuration based on the system channel's current config.
func (r *Registrar) SystemChannelID() string
SystemChannelID returns the ChannelID for the system channel.