mirror of
https://github.com/kaspanet/kaspad.git
synced 2025-06-01 03:36:43 +00:00
7069d173c6
* [NOD-172] Port EMCH from bchd * [NOD-172] Fix hdkeychain.TestErrors and add btcec.TestRecoverCompact * [NOD-172] Make ECMH immutable * [NOD-172] Fix gofmt errors * [NOD-172] Add TestMultiset_NewMultisetFromDataSlice and fix Point to be immutable * [NOD-172] Fix gofmt errors * [NOD-172] Add test for checking that the Union of a multiset and its inverse is zero * [NOD-179] Add ECMH Point to all UTXO-structs * [NOD-179] Fix utxo set tests * [NOD-179] Fix mempool tests * [NOD-179] Remove RemoveTxOuts * [NOD-179] Move serializeBlockUTXODiffData to the top of the file * [NOD-179] Fix serializeBlockUTXODiffData comment format * [NOD-179] Fix AddTx comment and name return values * [NOD-180] Validate utxo commitments * [NOD-179] Fix TestAcceptingBlock and TestConfirmations to not use the block hash as phantom break even * [NOD-180] Fix typo * [NOD-180] move most of the logic in calcUTXOCommitment to UTXOSet.WithTransactions * [NOD-180] Optionally return error when a transaction in WithTransactions is double spent * [NOD-180] Rename allowDoubleSpends to ignoreDoubleSpends
72 lines
2.6 KiB
Go
72 lines
2.6 KiB
Go
// Copyright (c) 2014-2016 The btcsuite developers
|
|
// Use of this source code is governed by an ISC
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package blockdag_test
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"github.com/daglabs/btcd/blockdag"
|
|
"github.com/daglabs/btcd/dagconfig"
|
|
"github.com/daglabs/btcd/database"
|
|
_ "github.com/daglabs/btcd/database/ffldb"
|
|
"github.com/daglabs/btcd/util"
|
|
)
|
|
|
|
// This example demonstrates how to create a new chain instance and use
|
|
// ProcessBlock to attempt to add a block to the chain. As the package
|
|
// overview documentation describes, this includes all of the Bitcoin consensus
|
|
// rules. This example intentionally attempts to insert a duplicate genesis
|
|
// block to illustrate how an invalid block is handled.
|
|
func ExampleBlockDAG_ProcessBlock() {
|
|
// Create a new database to store the accepted blocks into. Typically
|
|
// this would be opening an existing database and would not be deleting
|
|
// and creating a new database like this, but it is done here so this is
|
|
// a complete working example and does not leave temporary files laying
|
|
// around.
|
|
dbPath := filepath.Join(os.TempDir(), "exampleprocessblock")
|
|
_ = os.RemoveAll(dbPath)
|
|
db, err := database.Create("ffldb", dbPath, dagconfig.MainNetParams.Net)
|
|
if err != nil {
|
|
fmt.Printf("Failed to create database: %v\n", err)
|
|
return
|
|
}
|
|
defer os.RemoveAll(dbPath)
|
|
defer db.Close()
|
|
|
|
// Create a new BlockDAG instance using the underlying database for
|
|
// the main bitcoin network. This example does not demonstrate some
|
|
// of the other available configuration options such as specifying a
|
|
// notification callback and signature cache. Also, the caller would
|
|
// ordinarily keep a reference to the median time source and add time
|
|
// values obtained from other peers on the network so the local time is
|
|
// adjusted to be in agreement with other peers.
|
|
chain, err := blockdag.New(&blockdag.Config{
|
|
DB: db,
|
|
DAGParams: &dagconfig.MainNetParams,
|
|
TimeSource: blockdag.NewMedianTime(),
|
|
})
|
|
if err != nil {
|
|
fmt.Printf("Failed to create chain instance: %v\n", err)
|
|
return
|
|
}
|
|
|
|
// Process a block. For this example, we are going to intentionally
|
|
// cause an error by trying to process the genesis block which already
|
|
// exists.
|
|
genesisBlock := util.NewBlock(dagconfig.MainNetParams.GenesisBlock)
|
|
isOrphan, err := chain.ProcessBlock(genesisBlock,
|
|
blockdag.BFNone)
|
|
if err != nil {
|
|
fmt.Printf("Failed to process block: %v\n", err)
|
|
return
|
|
}
|
|
fmt.Printf("Block accepted. Is it an orphan?: %v", isOrphan)
|
|
|
|
// Output:
|
|
// Failed to process block: already have block 09c081c17dbfb421fc015aa77ba17e278c1a1cf9a7311a2042ffb8932d2ff365
|
|
}
|