M4andCursor
6b6c13c933
Reduce idle CPU (cheap PollUI, binary cache, logbuf cap, DOM fingerprint), speed ping/AWG HostPort, CopyBuffer pool; ship arm64 build and update notes. Co-authored-by: Cursor <cursoragent@cursor.com>
74 lines
1.4 KiB
Go
74 lines
1.4 KiB
Go
package corebin
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import (
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"os"
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"sync"
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)
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var (
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mu sync.Mutex
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cache = map[string]string{}
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)
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// CacheKey identifies a resolved core binary for a binDir + protocol.
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func CacheKey(binDir, proto string) string {
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return binDir + "\x00" + proto
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}
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// Get returns a cached absolute path if present.
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func Get(key string) (string, bool) {
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mu.Lock()
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defer mu.Unlock()
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p, ok := cache[key]
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return p, ok
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}
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// Set stores a resolved path.
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func Set(key, path string) {
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if key == "" || path == "" {
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return
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}
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mu.Lock()
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cache[key] = path
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mu.Unlock()
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}
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// Invalidate clears all cached paths (call after EnsureCore / binDir change).
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func Invalidate() {
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mu.Lock()
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cache = map[string]string{}
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mu.Unlock()
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}
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// Resolve caches the result of fn under key. Stale paths (missing on disk) are refreshed.
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func Resolve(key string, fn func() (string, error)) (string, error) {
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if path, ok := Get(key); ok {
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if _, err := os.Stat(path); err == nil {
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return path, nil
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}
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mu.Lock()
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delete(cache, key)
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mu.Unlock()
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}
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path, err := fn()
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if err != nil {
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return "", err
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}
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Set(key, path)
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return path, nil
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}
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// ProtoKey normalizes protocol to the shared binary cache key (xray covers vless/vmess/trojan).
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func ProtoKey(proto string) string {
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switch proto {
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case "hysteria2":
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return "hysteria2"
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case "awg":
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return "awg"
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case "vless", "vmess", "trojan", "xray":
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return "xray"
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default:
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return "naive"
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}
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}
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