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internal/era: reused SkipN for InitialTD, clean up comments

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lightclient 2025-04-03 09:04:27 -06:00
parent e3dc6563dd
commit e696f44b21
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GPG key ID: 657913021EF45A6A
1 changed files with 8 additions and 11 deletions
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19
internal/era/era.go
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@ -70,7 +70,7 @@ func ReadDir(dir, network string) ([]string, error) {
} }
parts := strings.Split(entry.Name(), "-") parts := strings.Split(entry.Name(), "-")
if len(parts) != 3 || parts[0] != network { if len(parts) != 3 || parts[0] != network {
// invalid era1 filename, skip // Invalid era1 filename, skip.
continue continue
} }
if epoch, err := strconv.ParseUint(parts[1], 10, 64); err != nil { if epoch, err := strconv.ParseUint(parts[1], 10, 64); err != nil {
@ -136,7 +136,7 @@ func (e *Era) GetHeaderByNumber(num uint64) (*types.Header, error) {
return nil, err return nil, err
} }
// Read and decompress header // Read and decompress header.
r, _, err := newSnappyReader(e.s, TypeCompressedHeader, off) r, _, err := newSnappyReader(e.s, TypeCompressedHeader, off)
if err != nil { if err != nil {
return nil, err return nil, err
@ -187,13 +187,13 @@ func (e *Era) GetReceipts(num uint64) (types.Receipts, error) {
return nil, err return nil, err
} }
// Skip over header and body // Skip over header and body.
off, err = e.s.SkipN(off, 2) off, err = e.s.SkipN(off, 2)
if err != nil { if err != nil {
return nil, err return nil, err
} }
// Read and decompress receipts // Read and decompress receipts.
r, _, err := newSnappyReader(e.s, TypeCompressedReceipts, off) r, _, err := newSnappyReader(e.s, TypeCompressedReceipts, off)
if err != nil { if err != nil {
return nil, err return nil, err
@ -238,13 +238,10 @@ func (e *Era) InitialTD() (*big.Int, error) {
} }
off += n off += n
// Skip over next two records. // Skip over header and body.
for i := 0; i < 2; i++ { off, err = e.s.SkipN(off, 2)
length, err := e.s.LengthAt(off) if err != nil {
if err != nil { return nil, err
return nil, err
}
off += length
} }
// Read total difficulty after first block. // Read total difficulty after first block.