Exemplo n.º 1
0
func TstCreateTxStore(t *testing.T) (store *wtxmgr.Store, tearDown func()) {
	dir, err := ioutil.TempDir("", "pool_test_txstore")
	if err != nil {
		t.Fatalf("Failed to create txstore dir: %v", err)
	}
	db, err := walletdb.Create("bdb", filepath.Join(dir, "txstore.db"))
	if err != nil {
		t.Fatalf("Failed to create walletdb: %v", err)
	}
	wtxmgrNamespace, err := db.Namespace([]byte("testtxstore"))
	if err != nil {
		t.Fatalf("Failed to create walletdb namespace: %v", err)
	}
	err = wtxmgr.Create(wtxmgrNamespace)
	if err != nil {
		t.Fatalf("Failed to create txstore: %v", err)
	}
	s, err := wtxmgr.Open(wtxmgrNamespace)
	if err != nil {
		t.Fatalf("Failed to open txstore: %v", err)
	}
	return s, func() { os.RemoveAll(dir) }
}
Exemplo n.º 2
0
func exampleCreateTxStore() (*wtxmgr.Store, func(), error) {
	dir, err := ioutil.TempDir("", "pool_test_txstore")
	if err != nil {
		return nil, nil, err
	}
	db, err := walletdb.Create("bdb", filepath.Join(dir, "txstore.db"))
	if err != nil {
		return nil, nil, err
	}
	wtxmgrNamespace, err := db.Namespace([]byte("testtxstore"))
	if err != nil {
		return nil, nil, err
	}
	err = wtxmgr.Create(wtxmgrNamespace)
	if err != nil {
		return nil, nil, err
	}
	s, err := wtxmgr.Open(wtxmgrNamespace)
	if err != nil {
		return nil, nil, err
	}
	return s, func() { os.RemoveAll(dir) }, nil
}
Exemplo n.º 3
0
func Example_basicUsage() {
	// Open the database.
	db, dbTeardown, err := testDB()
	defer dbTeardown()
	if err != nil {
		fmt.Println(err)
		return
	}

	// Create or open a db namespace for the transaction store.
	ns, err := db.Namespace([]byte("txstore"))
	if err != nil {
		fmt.Println(err)
		return
	}

	// Create (or open) the transaction store in the provided namespace.
	err = wtxmgr.Create(ns)
	if err != nil {
		fmt.Println(err)
		return
	}
	s, err := wtxmgr.Open(ns)
	if err != nil {
		fmt.Println(err)
		return
	}

	// Insert an unmined transaction that outputs 10 BTC to a wallet address
	// at output 0.
	err = s.InsertTx(exampleTxRecordA, nil)
	if err != nil {
		fmt.Println(err)
		return
	}
	err = s.AddCredit(exampleTxRecordA, nil, 0, false)
	if err != nil {
		fmt.Println(err)
		return
	}

	// Insert a second transaction which spends the output, and creates two
	// outputs.  Mark the second one (5 BTC) as wallet change.
	err = s.InsertTx(exampleTxRecordB, nil)
	if err != nil {
		fmt.Println(err)
		return
	}
	err = s.AddCredit(exampleTxRecordB, nil, 1, true)
	if err != nil {
		fmt.Println(err)
		return
	}

	// Mine each transaction in a block at height 100.
	err = s.InsertTx(exampleTxRecordA, &exampleBlock100)
	if err != nil {
		fmt.Println(err)
		return
	}
	err = s.InsertTx(exampleTxRecordB, &exampleBlock100)
	if err != nil {
		fmt.Println(err)
		return
	}

	// Print the one confirmation balance.
	bal, err := s.Balance(1, 100)
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(bal)

	// Fetch unspent outputs.
	utxos, err := s.UnspentOutputs()
	if err != nil {
		fmt.Println(err)
	}
	expectedOutPoint := wire.OutPoint{Hash: exampleTxRecordB.Hash, Index: 1}
	for _, utxo := range utxos {
		fmt.Println(utxo.OutPoint == expectedOutPoint)
	}

	// Output:
	// 5 BTC
	// true
}