71 lines
1.4 KiB
Go
71 lines
1.4 KiB
Go
package chain
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import (
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"fmt"
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"github.com/filecoin-project/lotus/build"
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lru "github.com/hashicorp/golang-lru"
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"github.com/ipfs/go-cid"
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)
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type BadBlockCache struct {
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badBlocks *lru.ARCCache
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}
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type BadBlockReason struct {
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Reason string
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TipSet []cid.Cid
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OriginalReason *BadBlockReason
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}
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func NewBadBlockReason(cid []cid.Cid, format string, i ...interface{}) BadBlockReason {
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return BadBlockReason{
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TipSet: cid,
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Reason: fmt.Sprintf(format, i...),
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}
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}
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func (bbr BadBlockReason) Linked(reason string, i ...interface{}) BadBlockReason {
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or := &bbr
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if bbr.OriginalReason != nil {
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or = bbr.OriginalReason
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}
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return BadBlockReason{Reason: fmt.Sprintf(reason, i...), OriginalReason: or}
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}
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func (bbr BadBlockReason) String() string {
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res := bbr.Reason
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if bbr.OriginalReason != nil {
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res += " caused by: " + fmt.Sprintf("%s %s", bbr.OriginalReason.TipSet, bbr.OriginalReason.String())
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}
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return res
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}
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func NewBadBlockCache() *BadBlockCache {
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cache, err := lru.NewARC(build.BadBlockCacheSize)
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if err != nil {
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panic(err) // ok
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}
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return &BadBlockCache{
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badBlocks: cache,
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}
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}
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func (bts *BadBlockCache) Add(c cid.Cid, bbr BadBlockReason) {
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bts.badBlocks.Add(c, bbr)
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}
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func (bts *BadBlockCache) Remove(c cid.Cid) {
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bts.badBlocks.Remove(c)
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}
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func (bts *BadBlockCache) Has(c cid.Cid) (BadBlockReason, bool) {
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rval, ok := bts.badBlocks.Get(c)
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if !ok {
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return BadBlockReason{}, false
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}
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return rval.(BadBlockReason), true
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}
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