Golang MsgBlock.DeserializeTxLoc方法代碼示例

本文整理匯總了Golang中github.com/decred/dcrd/wire.MsgBlock.DeserializeTxLoc方法的典型用法代碼示例。如果您正苦於以下問題：Golang MsgBlock.DeserializeTxLoc方法的具體用法？Golang MsgBlock.DeserializeTxLoc怎麽用？Golang MsgBlock.DeserializeTxLoc使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/decred/dcrd/wire.MsgBlock的用法示例。

在下文中一共展示了MsgBlock.DeserializeTxLoc方法的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: TxLoc

// TxLoc returns the offsets and lengths of each transaction in a raw block.
// It is used to allow fast indexing into transactions within the raw byte
// stream.
func (b *Block) TxLoc() ([]wire.TxLoc, []wire.TxLoc, error) {
	rawMsg, err := b.Bytes()
	if err != nil {
		return nil, nil, err
	}
	rbuf := bytes.NewBuffer(rawMsg)

	var mblock wire.MsgBlock
	txLocs, sTxLocs, err := mblock.DeserializeTxLoc(rbuf)
	if err != nil {
		return nil, nil, err
	}
	return txLocs, sTxLocs, err
}

開發者ID:decred，項目名稱:dcrutil，代碼行數:17，代碼來源:block.go

示例2: TestBlockSerializeErrors

// TestBlockSerializeErrors performs negative tests against wire encode and
// decode of MsgBlock to confirm error paths work correctly.
func TestBlockSerializeErrors(t *testing.T) {
	tests := []struct {
		in       *wire.MsgBlock // Value to encode
		buf      []byte         // Serialized data
		max      int            // Max size of fixed buffer to induce errors
		writeErr error          // Expected write error
		readErr  error          // Expected read error
	}{
		{&testBlock, testBlockBytes, 0, io.ErrShortWrite, io.EOF}, // 0
		// Force error in prev block hash.
		{&testBlock, testBlockBytes, 4, io.ErrShortWrite, io.EOF}, // 1
		// Force error in merkle root.
		{&testBlock, testBlockBytes, 36, io.ErrShortWrite, io.EOF}, // 2
		// Force error in stake root.
		{&testBlock, testBlockBytes, 68, io.ErrShortWrite, io.EOF}, // 3
		// Force error in vote bits.
		{&testBlock, testBlockBytes, 100, io.ErrShortWrite, io.EOF}, // 4
		// Force error in finalState.
		{&testBlock, testBlockBytes, 102, io.ErrShortWrite, io.EOF}, // 5
		// Force error in voters.
		{&testBlock, testBlockBytes, 108, io.ErrShortWrite, io.EOF}, // 8
		// Force error in freshstake.
		{&testBlock, testBlockBytes, 110, io.ErrShortWrite, io.EOF}, // 9
		// Force error in revocations.
		{&testBlock, testBlockBytes, 111, io.ErrShortWrite, io.EOF}, // 10
		// Force error in poolsize.
		{&testBlock, testBlockBytes, 112, io.ErrShortWrite, io.EOF}, // 11
		// Force error in difficulty bits.
		{&testBlock, testBlockBytes, 116, io.ErrShortWrite, io.EOF}, // 12
		// Force error in stake difficulty bits.
		{&testBlock, testBlockBytes, 120, io.ErrShortWrite, io.EOF}, // 13
		// Force error in height.
		{&testBlock, testBlockBytes, 128, io.ErrShortWrite, io.EOF}, // 14
		// Force error in size.
		{&testBlock, testBlockBytes, 132, io.ErrShortWrite, io.EOF}, // 15
		// Force error in timestamp.
		{&testBlock, testBlockBytes, 136, io.ErrShortWrite, io.EOF}, // 16
		// Force error in nonce.
		{&testBlock, testBlockBytes, 140, io.ErrShortWrite, io.EOF}, // 17
		// Force error in tx count.
		{&testBlock, testBlockBytes, 180, io.ErrShortWrite, io.EOF}, // 18
		// Force error in tx.
		{&testBlock, testBlockBytes, 181, io.ErrShortWrite, io.EOF}, // 19
	}

	t.Logf("Running %d tests", len(tests))
	for i, test := range tests {
		// Serialize the block.
		w := newFixedWriter(test.max)
		err := test.in.Serialize(w)
		if err != test.writeErr {
			t.Errorf("Serialize #%d wrong error got: %v, want: %v",
				i, err, test.writeErr)
			continue
		}

		// Deserialize the block.
		var block wire.MsgBlock
		r := newFixedReader(test.max, test.buf)
		err = block.Deserialize(r)
		if err != test.readErr {
			t.Errorf("Deserialize #%d wrong error got: %v, want: %v",
				i, err, test.readErr)
			continue
		}

		var txLocBlock wire.MsgBlock
		br := bytes.NewBuffer(test.buf[0:test.max])
		_, _, err = txLocBlock.DeserializeTxLoc(br)
		if err != test.readErr {
			t.Errorf("DeserializeTxLoc #%d wrong error got: %v, want: %v",
				i, err, test.readErr)
			continue
		}
	}
}

開發者ID:ironbits，項目名稱:dcrd，代碼行數:78，代碼來源:msgblock_test.go

示例3: TestBlockOverflowErrors

// TestBlockOverflowErrors  performs tests to ensure deserializing blocks which
// are intentionally crafted to use large values for the number of transactions
// are handled properly.  This could otherwise potentially be used as an attack
// vector.
func TestBlockOverflowErrors(t *testing.T) {
	// Use protocol version 70001 specifically here instead of the latest
	// protocol version because the test data is using bytes encoded with
	// that version.
	pver := uint32(1)

	tests := []struct {
		buf  []byte // Wire encoding
		pver uint32 // Protocol version for wire encoding
		err  error  // Expected error
	}{
		// Block that claims to have ~uint64(0) transactions.
		{
			[]byte{
				0x01, 0x00, 0x00, 0x00, // Version 1
				0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
				0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
				0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
				0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, // PrevBlock
				0x98, 0x20, 0x51, 0xfd, 0x1e, 0x4b, 0xa7, 0x44,
				0xbb, 0xbe, 0x68, 0x0e, 0x1f, 0xee, 0x14, 0x67,
				0x7b, 0xa1, 0xa3, 0xc3, 0x54, 0x0b, 0xf7, 0xb1,
				0xcd, 0xb6, 0x06, 0xe8, 0x57, 0x23, 0x3e, 0x0e, // MerkleRoot
				0x98, 0x20, 0x51, 0xfd, 0x1e, 0x4b, 0xa7, 0x44,
				0xbb, 0xbe, 0x68, 0x0e, 0x1f, 0xee, 0x14, 0x67,
				0x7b, 0xa1, 0xa3, 0xc3, 0x54, 0x0b, 0xf7, 0xb1,
				0xcd, 0xb6, 0x06, 0xe8, 0x57, 0x23, 0x3e, 0x0e, // StakeRoot
				0x00, 0x00, // VoteBits
				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // FinalState
				0x00, 0x00, // Voters
				0x00,                   // FreshStake
				0x00,                   // Revocations
				0x00, 0x00, 0x00, 0x00, // Poolsize
				0xff, 0xff, 0x00, 0x1d, // Bits
				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SBits
				0x01, 0x00, 0x00, 0x00, // Height
				0x01, 0x00, 0x00, 0x00, // Size
				0x61, 0xbc, 0x66, 0x49, // Timestamp
				0x01, 0xe3, 0x62, 0x99, // Nonce
				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // ExtraData
				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
				0x00, 0x00, 0x00, 0x00,
				0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
				0xff, // TxnCount
			}, pver, &wire.MessageError{},
		},
	}

	t.Logf("Running %d tests", len(tests))
	for i, test := range tests {
		// Decode from wire format.
		var msg wire.MsgBlock
		r := bytes.NewReader(test.buf)
		err := msg.BtcDecode(r, test.pver)
		if reflect.TypeOf(err) != reflect.TypeOf(test.err) {
			t.Errorf("BtcDecode #%d wrong error got: %v, want: %v",
				i, err, reflect.TypeOf(test.err))
			continue
		}

		// Deserialize from wire format.
		r = bytes.NewReader(test.buf)
		err = msg.Deserialize(r)
		if reflect.TypeOf(err) != reflect.TypeOf(test.err) {
			t.Errorf("Deserialize #%d wrong error got: %v, want: %v",
				i, err, reflect.TypeOf(test.err))
			continue
		}

		// Deserialize with transaction location info from wire format.
		br := bytes.NewBuffer(test.buf)
		_, _, err = msg.DeserializeTxLoc(br)
		if reflect.TypeOf(err) != reflect.TypeOf(test.err) {
			t.Errorf("DeserializeTxLoc #%d wrong error got: %v, "+
				"want: %v", i, err, reflect.TypeOf(test.err))
			continue
		}
	}
}

開發者ID:ironbits，項目名稱:dcrd，代碼行數:85，代碼來源:msgblock_test.go

示例4: TestBlockSerialize

// TestBlockSerialize tests MsgBlock serialize and deserialize.
func TestBlockSerialize(t *testing.T) {
	tests := []struct {
		in      *wire.MsgBlock // Message to encode
		out     *wire.MsgBlock // Expected decoded message
		buf     []byte         // Serialized data
		txLocs  []wire.TxLoc   // Expected transaction locations
		sTxLocs []wire.TxLoc   // Expected stake transaction locations
	}{
		{
			&testBlock,
			&testBlock,
			testBlockBytes,
			testBlockTxLocs,
			testBlockSTxLocs,
		},
	}

	t.Logf("Running %d tests", len(tests))
	for i, test := range tests {
		// Serialize the block.
		var buf bytes.Buffer
		err := test.in.Serialize(&buf)
		if err != nil {
			t.Errorf("Serialize #%d error %v", i, err)
			continue
		}
		if !bytes.Equal(buf.Bytes(), test.buf) {
			t.Errorf("Serialize #%d\n got: %s want: %s", i,
				spew.Sdump(buf.Bytes()), spew.Sdump(test.buf))
			continue
		}

		// Deserialize the block.
		var block wire.MsgBlock
		rbuf := bytes.NewReader(test.buf)
		err = block.Deserialize(rbuf)
		if err != nil {
			t.Errorf("Deserialize #%d error %v", i, err)
			continue
		}
		if !reflect.DeepEqual(&block, test.out) {
			t.Errorf("Deserialize #%d\n got: %s want: %s", i,
				spew.Sdump(&block), spew.Sdump(test.out))
			continue
		}

		// Deserialize the block while gathering transaction location
		// information.
		var txLocBlock wire.MsgBlock
		br := bytes.NewBuffer(test.buf)
		txLocs, sTxLocs, err := txLocBlock.DeserializeTxLoc(br)
		if err != nil {
			t.Errorf("DeserializeTxLoc #%d error %v", i, err)
			continue
		}
		if !reflect.DeepEqual(&txLocBlock, test.out) {
			t.Errorf("DeserializeTxLoc #%d\n got: %s want: %s", i,
				spew.Sdump(&txLocBlock), spew.Sdump(test.out))
			continue
		}
		if !reflect.DeepEqual(txLocs, test.txLocs) {
			t.Errorf("DeserializeTxLoc #%d\n got: %s want: %s", i,
				spew.Sdump(txLocs), spew.Sdump(test.txLocs))
			continue
		}
		if !reflect.DeepEqual(sTxLocs, test.sTxLocs) {
			t.Errorf("DeserializeTxLoc, sTxLocs #%d\n got: %s want: %s", i,
				spew.Sdump(sTxLocs), spew.Sdump(test.sTxLocs))
			continue
		}
	}
}

開發者ID:ironbits，項目名稱:dcrd，代碼行數:73，代碼來源:msgblock_test.go

注：本文中的github.com/decred/dcrd/wire.MsgBlock.DeserializeTxLoc方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。