mirror of https://github.com/status-im/op-geth.git
light: fix disableCheckFreq locking (#18515)
This change unbreaks the build and removes racy access to disableCheckFreq. Even though the field is set while holding the lock, it was read outside of the protected section.
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0a454554ae
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@ -35,7 +35,7 @@ import (
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/params"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/hashicorp/golang-lru"
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lru "github.com/hashicorp/golang-lru"
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)
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var (
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@ -50,6 +50,7 @@ type LightChain struct {
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hc *core.HeaderChain
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indexerConfig *IndexerConfig
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chainDb ethdb.Database
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engine consensus.Engine
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odr OdrBackend
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chainFeed event.Feed
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chainSideFeed event.Feed
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@ -57,21 +58,18 @@ type LightChain struct {
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scope event.SubscriptionScope
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genesisBlock *types.Block
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chainmu sync.RWMutex
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bodyCache *lru.Cache // Cache for the most recent block bodies
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bodyRLPCache *lru.Cache // Cache for the most recent block bodies in RLP encoded format
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blockCache *lru.Cache // Cache for the most recent entire blocks
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chainmu sync.RWMutex // protects header inserts
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quit chan struct{}
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running int32 // running must be called automically
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// procInterrupt must be atomically called
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procInterrupt int32 // interrupt signaler for block processing
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wg sync.WaitGroup
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engine consensus.Engine
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disableCheckFreq bool
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// Atomic boolean switches:
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running int32 // whether LightChain is running or stopped
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procInterrupt int32 // interrupts chain insert
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disableCheckFreq int32 // disables header verification
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}
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// NewLightChain returns a fully initialised light chain using information
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@ -356,7 +354,7 @@ func (self *LightChain) postChainEvents(events []interface{}) {
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// In the case of a light chain, InsertHeaderChain also creates and posts light
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// chain events when necessary.
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func (self *LightChain) InsertHeaderChain(chain []*types.Header, checkFreq int) (int, error) {
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if self.disableCheckFreq {
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if atomic.LoadInt32(&self.disableCheckFreq) == 1 {
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checkFreq = 0
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}
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start := time.Now()
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@ -532,16 +530,12 @@ func (self *LightChain) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEven
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return self.scope.Track(new(event.Feed).Subscribe(ch))
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}
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//DisableCheckFreq disables header validation. It needs for ULC
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// DisableCheckFreq disables header validation. This is used for ultralight mode.
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func (self *LightChain) DisableCheckFreq() {
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self.mu.Lock()
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defer self.mu.Unlock()
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self.disableCheckFreq = true
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atomic.StoreInt32(&self.disableCheckFreq, 1)
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}
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//EnableCheckFreq enables header validation
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// EnableCheckFreq enables header validation.
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func (self *LightChain) EnableCheckFreq() {
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self.mu.Lock()
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defer self.mu.Unlock()
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self.disableCheckFreq = false
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atomic.StoreInt32(&self.disableCheckFreq, 0)
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}
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