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eth, les, light: Refactor downloader to use blockchain interface

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This commit is contained in:
Nick Johnson
2017-06-27 16:15:29 +01:00
parent dfd076244d
commit 0550957989
6 changed files with 134 additions and 146 deletions
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41
eth/downloader/types.go
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@ -18,51 +18,10 @@ package downloader
import (
"fmt"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
)
// headerCheckFn is a callback type for verifying a header's presence in the local chain.
type headerCheckFn func(common.Hash) bool
// blockAndStateCheckFn is a callback type for verifying block and associated states' presence in the local chain.
type blockAndStateCheckFn func(common.Hash) bool
// headerRetrievalFn is a callback type for retrieving a header from the local chain.
type headerRetrievalFn func(common.Hash) *types.Header
// blockRetrievalFn is a callback type for retrieving a block from the local chain.
type blockRetrievalFn func(common.Hash) *types.Block
// headHeaderRetrievalFn is a callback type for retrieving the head header from the local chain.
type headHeaderRetrievalFn func() *types.Header
// headBlockRetrievalFn is a callback type for retrieving the head block from the local chain.
type headBlockRetrievalFn func() *types.Block
// headFastBlockRetrievalFn is a callback type for retrieving the head fast block from the local chain.
type headFastBlockRetrievalFn func() *types.Block
// headBlockCommitterFn is a callback for directly committing the head block to a certain entity.
type headBlockCommitterFn func(common.Hash) error
// tdRetrievalFn is a callback type for retrieving the total difficulty of a local block.
type tdRetrievalFn func(common.Hash) *big.Int
// headerChainInsertFn is a callback type to insert a batch of headers into the local chain.
type headerChainInsertFn func([]*types.Header, int) (int, error)
// blockChainInsertFn is a callback type to insert a batch of blocks into the local chain.
type blockChainInsertFn func(types.Blocks) (int, error)
// receiptChainInsertFn is a callback type to insert a batch of receipts into the local chain.
type receiptChainInsertFn func(types.Blocks, []types.Receipts) (int, error)
// chainRollbackFn is a callback type to remove a few recently added elements from the local chain.
type chainRollbackFn func([]common.Hash)
// peerDropFn is a callback type for dropping a peer detected as malicious.
type peerDropFn func(id string)