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fix: race condition in buffer

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This commit is contained in:
zenix 2022-06-17 19:26:14 +09:00
parent dca80cfb7e
commit 0c7a98cc4b
1 changed files with 5 additions and 4 deletions
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9
pkg/depth/buffer.go
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@ -3,6 +3,7 @@ package depth
import ( import (
"fmt" "fmt"
"sync" "sync"
"sync/atomic"
"time" "time"
log "github.com/sirupsen/logrus" log "github.com/sirupsen/logrus"
@ -40,7 +41,7 @@ type Buffer struct {
updateTimeout time.Duration updateTimeout time.Duration
// bufferingPeriod is used to buffer the update message before we get the full depth // bufferingPeriod is used to buffer the update message before we get the full depth
bufferingPeriod time.Duration bufferingPeriod atomic.Value
} }
func NewBuffer(fetcher SnapshotFetcher) *Buffer { func NewBuffer(fetcher SnapshotFetcher) *Buffer {
@ -55,7 +56,7 @@ func (b *Buffer) SetUpdateTimeout(d time.Duration) {
} }
func (b *Buffer) SetBufferingPeriod(d time.Duration) { func (b *Buffer) SetBufferingPeriod(d time.Duration) {
b.bufferingPeriod = d b.bufferingPeriod.Store(d)
} }
func (b *Buffer) resetSnapshot() { func (b *Buffer) resetSnapshot() {
@ -185,8 +186,8 @@ func (b *Buffer) fetchAndPush() error {
func (b *Buffer) tryFetch() { func (b *Buffer) tryFetch() {
for { for {
if b.bufferingPeriod > 0 { if period := b.bufferingPeriod.Load(); period != nil {
<-time.After(b.bufferingPeriod) <-time.After(period.(time.Duration))
} }
err := b.fetchAndPush() err := b.fetchAndPush()