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core/bloombits: AddBloom index parameter and fixes variable names

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This commit is contained in:
Zsolt Felfoldi
2017-09-06 01:43:00 +02:00
committed by Péter Szilágyi
parent f585f9eee8
commit 6ff2c02991
4 changed files with 11 additions and 8 deletions
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13
core/bloombits/generator.go
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@ -49,21 +49,24 @@ func NewGenerator(sections uint) (*Generator, error) {
// AddBloom takes a single bloom filter and sets the corresponding bit column
// in memory accordingly.
func (b *Generator) AddBloom(bloom types.Bloom) error {
func (b *Generator) AddBloom(index uint, bloom types.Bloom) error {
// Make sure we're not adding more bloom filters than our capacity
if b.nextBit >= b.sections {
return errSectionOutOfBounds
}
if b.nextBit != index {
return errors.New("bloom filter with unexpected index")
}
// Rotate the bloom and insert into our collection
byteMask := b.nextBit / 8
byteIndex := b.nextBit / 8
bitMask := byte(1) << byte(7-b.nextBit%8)
for i := 0; i < types.BloomBitLength; i++ {
bloomByteMask := types.BloomByteLength - 1 - i/8
bloomByteIndex := types.BloomByteLength - 1 - i/8
bloomBitMask := byte(1) << byte(i%8)
if (bloom[bloomByteMask] & bloomBitMask) != 0 {
b.blooms[i][byteMask] |= bitMask
if (bloom[bloomByteIndex] & bloomBitMask) != 0 {
b.blooms[i][byteIndex] |= bitMask
}
}
b.nextBit++