mirror of
https://github.com/Rain-kl/OpenFlare.git
synced 2026-10-01 22:46:38 +08:00
ryan
b3a55d4ab5
- Concurrency: Added lock protection to WebSocket writes, fixed timer leaks, and prevented config cache listener context leaks. - Performance: Added memory cache in ObservabilityBufferStore, periodic cleaning in CH Deduplicator, and buffered ZIP batch download writes. - Design: Introduced Redis caching for OAuth session/tokens, sanitized raw DB error messages, segregated handlers and logics, and standard CAP response envelopes.
51 lines
976 B
Go
51 lines
976 B
Go
// Copyright 2026 Arctel.net
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// SPDX-License-Identifier: Apache-2.0
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package chwriter
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import (
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"sync"
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"time"
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)
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const dedupTTL = 2 * time.Minute
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type dedupSet struct {
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mu sync.Mutex
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keys map[string]time.Time
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lastCleanup time.Time
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}
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func newDedupSet() *dedupSet {
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return &dedupSet{
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keys: make(map[string]time.Time),
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lastCleanup: time.Now(),
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}
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}
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// markIfNew records key when it has not been seen within dedupTTL.
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func (s *dedupSet) markIfNew(key string) bool {
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if key == "" {
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return false
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}
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now := time.Now()
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s.mu.Lock()
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defer s.mu.Unlock()
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// Periodically clean up all expired keys (e.g., every 30 seconds)
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if now.Sub(s.lastCleanup) >= 30*time.Second {
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for existing, expiresAt := range s.keys {
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if now.After(expiresAt) {
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delete(s.keys, existing)
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}
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}
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s.lastCleanup = now
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}
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if expiresAt, exists := s.keys[key]; exists && now.Before(expiresAt) {
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return false
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}
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s.keys[key] = now.Add(dedupTTL)
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return true
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} |