Example #1
0
// Adds a coin.Transaction to the pool, or updates an existing one's timestamps
// Returns an error if txn is invalid, and whether the transaction already
// existed in the pool.
func (self *UnconfirmedTxnPool) RecordTxn(bc *coin.Blockchain,
	t coin.Transaction, addrs map[coin.Address]byte, maxSize int,
	burnFactor uint64) (error, bool) {
	if err := VerifyTransaction(bc, &t, maxSize, burnFactor); err != nil {
		return err, false
	}
	if err := bc.VerifyTransaction(t); err != nil {
		return err, false
	}

	// Update if we already have this txn
	h := t.Hash()
	ut, ok := self.Txns[h]
	if ok {
		now := util.Now()
		ut.Received = now
		ut.Checked = now
		self.Txns[h] = ut
		return nil, true
	}

	// Add txn to index
	self.Txns[h] = self.createUnconfirmedTxn(&bc.Unspent, t, addrs)
	// Add predicted unspents
	self.Unspent[h] = coin.CreateUnspents(bc.Head().Head, t)

	return nil, false
}
Example #2
0
// Adds a coin.Transaction to the pool, or updates an existing one's timestamps
// Returns an error if txn is invalid, and whether the transaction already
// existed in the pool.
func (self *UnconfirmedTxnPool) InjectTxn(bc *coin.Blockchain,
	t coin.Transaction) (error, bool) {

	if err := t.Verify(); err != nil {
		return err, false
	}

	if err := VerifyTransactionFee(bc, &t); err != nil {
		return err, false
	}
	if err := bc.VerifyTransaction(t); err != nil {
		return err, false
	}

	// Update if we already have this txn
	h := t.Hash()
	ut, ok := self.Txns[h]
	if ok {
		now := util.Now()
		ut.Received = now
		ut.Checked = now
		self.Txns[h] = ut
		return nil, true
	}

	// Add txn to index
	self.Txns[h] = self.createUnconfirmedTxn(&bc.Unspent, t)
	// Add predicted unspents
	self.Unspent[h] = coin.CreateUnspents(bc.Head().Head, t)

	return nil, false
}
Example #3
0
func assertValidUnspent(t *testing.T, bc *coin.Blockchain,
	unspent TxnUnspents, tx coin.Transaction) {
	expect := coin.CreateUnspents(bc.Head().Head, tx)
	assert.NotEqual(t, len(expect), 0)
	sum := 0
	for _, uxs := range unspent {
		sum += len(uxs)
	}
	assert.Equal(t, len(expect), sum)
	uxs := unspent[tx.Hash()]
	for _, ux := range expect {
		found := false
		for _, u := range uxs {
			if u.Hash() == ux.Hash() {
				found = true
				break
			}
		}
		assert.True(t, found)
	}
}