xfy
11e22c80b8
- 添加 b2s/s2b 零分配字节-字符串转换工具函数 - WebSocket 数据转发使用 sync.Pool 复用 32KB buffer - 条件化 Debug 日志避免非 Debug 级别的字符串分配 - 缓存键哈希计算直接写入 []byte 避免 string 转换 - 使用 bytes.EqualFold 替代 strings.ToLower 进行大小写不敏感比较 - generateETag 使用 strconv.AppendInt 避免 fmt.Sprintf - 支持 Dial timeout 配置，区分 TCP 连接建立和总连接超时 - MaxConnsPerHost 默认值改为 512（fasthttp 推荐） Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
37 lines
917 B
Go
37 lines
917 B
Go
package proxy
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import (
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"bytes"
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"unsafe"
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)
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// b2s converts byte slice to string without allocation.
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// WARNING: The returned string shares memory with the original slice.
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// Do not modify the slice after calling this function.
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func b2s(b []byte) string {
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if len(b) == 0 {
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return ""
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}
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return unsafe.String(&b[0], len(b))
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}
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// s2b converts string to byte slice without allocation.
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// WARNING: The returned slice shares memory with the original string.
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// Do not modify the slice contents.
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func s2b(s string) []byte {
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if s == "" {
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return nil
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}
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return unsafe.Slice(unsafe.StringData(s), len(s))
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}
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// isInWhitelist checks if a header key is in the whitelist.
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// Uses bytes.EqualFold for case-insensitive comparison without allocation.
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func isInWhitelist(key []byte, whitelist map[string]bool) bool {
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for wKey := range whitelist {
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if bytes.EqualFold(key, s2b(wKey)) {
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return true
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}
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}
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return false
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} |