mirror of
https://github.com/shadow1ng/fscan.git
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c2b63a57e2
- 重命名 Common -> common，WebScan -> webscan，遵循 Go 包命名约定 - 修复模块路径大小写不匹配导致的编译错误 - 清理依赖项，优化 go.mod 文件 - 添加 Docker 测试环境配置文件 - 新增镜像拉取脚本以处理网络超时问题 - 成功编译生成 fscan v2.2.1 可执行文件 该修复解决了 Linux 系统下包名大小写敏感导致的模块解析失败问题。
129 lines
2.7 KiB
Go
129 lines
2.7 KiB
Go
package utils
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import (
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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)
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// StringBuilderPool 字符串构建器池
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type StringBuilderPool struct {
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pool sync.Pool
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reused int64 // 复用计数器
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maxSize int // 最大保留大小，防止内存无限增长
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}
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// NewStringBuilderPool 创建新的字符串构建器池
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func NewStringBuilderPool(maxSize int) *StringBuilderPool {
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if maxSize <= 0 {
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maxSize = 64 * 1024 // 默认64KB最大保留大小
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}
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return &StringBuilderPool{
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pool: sync.Pool{
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New: func() interface{} {
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return &strings.Builder{}
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},
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},
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maxSize: maxSize,
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}
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}
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// Get 获取字符串构建器
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func (p *StringBuilderPool) Get() *strings.Builder {
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builder := p.pool.Get().(*strings.Builder)
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builder.Reset() // 清空内容但保留容量
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atomic.AddInt64(&p.reused, 1)
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return builder
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}
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// Put 归还字符串构建器
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func (p *StringBuilderPool) Put(builder *strings.Builder) {
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if builder == nil {
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return
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}
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// 如果容量超过最大限制，不放回池中以避免内存泄露
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if builder.Cap() > p.maxSize {
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return
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}
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p.pool.Put(builder)
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}
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// JoinStrings 高效连接字符串切片
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func (p *StringBuilderPool) JoinStrings(slice []string, sep string) string {
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if len(slice) == 0 {
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return ""
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}
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if len(slice) == 1 {
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return slice[0]
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}
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builder := p.Get()
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defer p.Put(builder)
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// 预估容量：所有字符串长度 + 分隔符长度
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var totalLen int
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for _, s := range slice {
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totalLen += len(s)
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}
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totalLen += len(sep) * (len(slice) - 1)
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// 如果当前容量不足，预先增长
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if builder.Cap() < totalLen {
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builder.Grow(totalLen)
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}
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builder.WriteString(slice[0])
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for i := 1; i < len(slice); i++ {
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builder.WriteString(sep)
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builder.WriteString(slice[i])
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}
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return builder.String()
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}
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// JoinInts 高效连接整数切片
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func (p *StringBuilderPool) JoinInts(slice []int, sep string) string {
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if len(slice) == 0 {
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return ""
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}
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if len(slice) == 1 {
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return strconv.Itoa(slice[0])
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}
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builder := p.Get()
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defer p.Put(builder)
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// 预估容量：平均每个整数4字符 + 分隔符
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estimatedLen := len(slice)*4 + len(sep)*(len(slice)-1)
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if builder.Cap() < estimatedLen {
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builder.Grow(estimatedLen)
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}
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builder.WriteString(strconv.Itoa(slice[0]))
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for i := 1; i < len(slice); i++ {
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builder.WriteString(sep)
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builder.WriteString(strconv.Itoa(slice[i]))
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}
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return builder.String()
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}
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// 全局字符串构建器池实例
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var GlobalStringBuilderPool = NewStringBuilderPool(64 * 1024)
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// 便捷函数，使用全局池
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func JoinStrings(slice []string, sep string) string {
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return GlobalStringBuilderPool.JoinStrings(slice, sep)
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}
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func JoinInts(slice []int, sep string) string {
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return GlobalStringBuilderPool.JoinInts(slice, sep)
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}
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