646e0fa057
* This removes some duplication between the fake blockchain and geth blockchain. * This pulls the observers into the blockchain listener
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
package core
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import (
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"fmt"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/ethclient"
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"golang.org/x/net/context"
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)
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type GethBlockchain struct {
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client *ethclient.Client
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readGethHeaders chan *types.Header
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outputBlocks chan Block
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}
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func NewGethBlockchain(ipcPath string) *GethBlockchain {
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fmt.Printf("Creating Geth Blockchain to: %s\n", ipcPath)
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blockchain := GethBlockchain{}
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client, _ := ethclient.Dial(ipcPath)
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blockchain.client = client
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return &blockchain
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}
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func (blockchain *GethBlockchain) SubscribeToBlocks(blocks chan Block) {
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blockchain.outputBlocks = blocks
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fmt.Println("SubscribeToBlocks")
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inputHeaders := make(chan *types.Header, 10)
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myContext := context.Background()
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blockchain.readGethHeaders = inputHeaders
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blockchain.client.SubscribeNewHead(myContext, inputHeaders)
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}
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func (blockchain *GethBlockchain) StartListening() {
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myContext := context.Background()
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for header := range blockchain.readGethHeaders {
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gethBlock, _ := blockchain.client.BlockByNumber(myContext, header.Number)
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block := GethBlockToCoreBlock(gethBlock)
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blockchain.outputBlocks <- block
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}
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}
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