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Wrap map mutations with mutex lock #81

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Wrap map mutations with mutex lock #81

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3a50a76
Wrap map mutations with mutex lock
Dec 16, 2024
0d0f64b
Use RWMutex
Dec 16, 2024
c81ee05
Use standard lock
Dec 16, 2024
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13 changes: 13 additions & 0 deletions util.go
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Original file line number Diff line number Diff line change
@@ -1,8 +1,13 @@
package posthog

import (
"sync"
)

type SizeLimitedMap struct {
ids map[string][]string
size int
mu sync.Mutex
}

func newSizeLimitedMap(size int) *SizeLimitedMap {
Expand All @@ -15,6 +20,8 @@ func newSizeLimitedMap(size int) *SizeLimitedMap {
}

func (sizeLimitedMap *SizeLimitedMap) add(key string, element string) {
sizeLimitedMap.mu.Lock()
defer sizeLimitedMap.mu.Unlock()

if len(sizeLimitedMap.ids) >= sizeLimitedMap.size {
sizeLimitedMap.ids = map[string][]string{}
Expand All @@ -28,6 +35,9 @@ func (sizeLimitedMap *SizeLimitedMap) add(key string, element string) {
}

func (sizeLimitedMap *SizeLimitedMap) contains(key string, element string) bool {
sizeLimitedMap.mu.Lock()
defer sizeLimitedMap.mu.Unlock()

if val, ok := sizeLimitedMap.ids[key]; ok {
for _, v := range val {
if v == element {
Expand All @@ -40,5 +50,8 @@ func (sizeLimitedMap *SizeLimitedMap) contains(key string, element string) bool
}

func (sizeLimitedMap *SizeLimitedMap) count() int {
sizeLimitedMap.mu.Lock()
defer sizeLimitedMap.mu.Unlock()

return len(sizeLimitedMap.ids)
}