LBRYCommunity/lbcutil
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Return matched tx indices from NewMerkleBlock.

Browse source 
This commit modifies the NewMerkleBlock function to return the matched
transaction indices instead of their hashes.  This is being done because
it is much easier for the caller to lookup the matched transactions from
the original passed block based on their transaction index within the
block versus their hashes.
This commit is contained in:
Dave Collins 2015-07-28 04:02:49 -05:00
parent f3db5cf7e5
commit d39a255dbc
1 changed files with 6 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
bloom/merkleblock.go
View file

@ -77,8 +77,8 @@ func (m *merkleBlock) traverseAndBuild(height, pos uint32) {
}
// NewMerkleBlock returns a new *wire.MsgMerkleBlock and an array of the matched
// transaction hashes based on the passed block and filter.
func NewMerkleBlock(block *btcutil.Block, filter *Filter) (*wire.MsgMerkleBlock, []*wire.ShaHash) {
// transaction index numbers based on the passed block and filter.
func NewMerkleBlock(block *btcutil.Block, filter *Filter) (*wire.MsgMerkleBlock, []uint32) {
numTx := uint32(len(block.Transactions()))
mBlock := merkleBlock{
numTx: numTx,
@ -87,11 +87,11 @@ func NewMerkleBlock(block *btcutil.Block, filter *Filter) (*wire.MsgMerkleBlock,
}
// Find and keep track of any transactions that match the filter.
var matchedHashes []*wire.ShaHash
for _, tx := range block.Transactions() {
var matchedIndices []uint32
for txIndex, tx := range block.Transactions() {
if filter.MatchTxAndUpdate(tx) {
mBlock.matchedBits = append(mBlock.matchedBits, 0x01)
matchedHashes = append(matchedHashes, tx.Sha())
matchedIndices = append(matchedIndices, uint32(txIndex))
} else {
mBlock.matchedBits = append(mBlock.matchedBits, 0x00)
}
@ -120,5 +120,5 @@ func NewMerkleBlock(block *btcutil.Block, filter *Filter) (*wire.MsgMerkleBlock,
for i := uint32(0); i < uint32(len(mBlock.bits)); i++ {
msgMerkleBlock.Flags[i/8] |= mBlock.bits[i] << (i % 8)
}
return &msgMerkleBlock, matchedHashes
return &msgMerkleBlock, matchedIndices
}