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43f210ffc6
- 重构插件注册架构采用现代工厂模式和自动发现机制 - 新增完整的插件元数据管理系统支持版本能力标签等信息 - 实现智能插件适配器提供向后兼容的桥接功能 - 建立MySQL Redis SSH三个标准插件作为新架构参考实现 - 优化插件扫描逻辑支持按端口按类型的智能查询和过滤 - 添加国际化支持和完善的文档体系 - 代码量减少67%维护成本大幅降低扩展性显著提升 新架构特点: - 零配置插件注册import即用 - 工厂模式延迟初始化和依赖注入 - 丰富元数据系统和能力声明 - 完全解耦的模块化设计 - 面向未来的可扩展架构 测试验证: MySQL和Redis插件功能完整包括弱密码检测未授权访问检测和自动利用攻击
140 lines
3.2 KiB
Go
140 lines
3.2 KiB
Go
package utils
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import (
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"log"
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"runtime"
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"time"
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)
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// MemoryMonitor 内存监控器
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type MemoryMonitor struct {
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maxHeapMB uint64 // 最大堆内存阈值(MB)
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maxGoroutines int // 最大goroutine数量阈值
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checkInterval time.Duration // 检查间隔
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running bool // 是否运行中
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stopChan chan bool
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}
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// NewMemoryMonitor 创建新的内存监控器
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func NewMemoryMonitor(maxHeapMB uint64, maxGoroutines int, checkInterval time.Duration) *MemoryMonitor {
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return &MemoryMonitor{
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maxHeapMB: maxHeapMB,
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maxGoroutines: maxGoroutines,
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checkInterval: checkInterval,
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stopChan: make(chan bool, 1),
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}
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}
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// Start 启动内存监控
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func (mm *MemoryMonitor) Start() {
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if mm.running {
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return
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}
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mm.running = true
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go mm.monitor()
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}
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// Stop 停止内存监控
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func (mm *MemoryMonitor) Stop() {
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if !mm.running {
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return
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}
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mm.running = false
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select {
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case mm.stopChan <- true:
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default:
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}
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}
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// monitor 监控循环
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func (mm *MemoryMonitor) monitor() {
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ticker := time.NewTicker(mm.checkInterval)
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defer ticker.Stop()
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for {
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select {
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case <-ticker.C:
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mm.checkMemory()
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case <-mm.stopChan:
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return
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}
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}
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}
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// checkMemory 检查内存使用情况
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func (mm *MemoryMonitor) checkMemory() {
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var m runtime.MemStats
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runtime.ReadMemStats(&m)
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heapMB := m.HeapInuse / 1024 / 1024
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goroutineCount := runtime.NumGoroutine()
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// 检查堆内存使用
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if heapMB > mm.maxHeapMB {
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log.Printf("[WARN] 内存使用警告: 堆内存使用过高 %d MB (阈值: %d MB)", heapMB, mm.maxHeapMB)
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// 尝试触发GC
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runtime.GC()
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// 再次检查
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runtime.ReadMemStats(&m)
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heapMBAfterGC := m.HeapInuse / 1024 / 1024
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log.Printf("[INFO] GC后堆内存: %d MB", heapMBAfterGC)
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}
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// 检查goroutine数量
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if goroutineCount > mm.maxGoroutines {
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log.Printf("[WARN] Goroutine数量警告: 当前数量 %d (阈值: %d)", goroutineCount, mm.maxGoroutines)
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}
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}
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// GetMemoryStats 获取当前内存统计信息
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func (mm *MemoryMonitor) GetMemoryStats() map[string]interface{} {
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var m runtime.MemStats
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runtime.ReadMemStats(&m)
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return map[string]interface{}{
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"heap_inuse_mb": m.HeapInuse / 1024 / 1024,
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"heap_alloc_mb": m.HeapAlloc / 1024 / 1024,
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"sys_mb": m.Sys / 1024 / 1024,
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"num_gc": m.NumGC,
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"num_goroutines": runtime.NumGoroutine(),
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"last_gc_time": time.Unix(0, int64(m.LastGC)),
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}
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}
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// ForceGC 强制执行垃圾回收
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func (mm *MemoryMonitor) ForceGC() {
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before := mm.getHeapSize()
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runtime.GC()
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after := mm.getHeapSize()
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// 使用log包直接输出，避免undefined common错误
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log.Printf("[INFO] 强制GC: 释放内存 %d MB", (before-after)/1024/1024)
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}
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// getHeapSize 获取当前堆大小
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func (mm *MemoryMonitor) getHeapSize() uint64 {
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var m runtime.MemStats
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runtime.ReadMemStats(&m)
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return m.HeapInuse
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}
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// 默认内存监控器实例
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var DefaultMemMonitor = NewMemoryMonitor(
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512, // 最大堆内存512MB
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1000, // 最大1000个goroutines
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30*time.Second, // 30秒检查一次
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)
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// StartDefaultMonitor 启动默认内存监控器
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func StartDefaultMonitor() {
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DefaultMemMonitor.Start()
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}
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// StopDefaultMonitor 停止默认内存监控器
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func StopDefaultMonitor() {
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DefaultMemMonitor.Stop()
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} |