Logan.Li
e0d652d211
- 支持 Windows Agent 构建、安装脚本和统一上报协议 - 增强 RDP 剪贴板、虚拟盘和文件传输能力 - 新增 AIOps 上下文工具、告警 RCA trace 落库和回放接口 - 重构 docs 模块文档并补充终端、堡垒机、监控、AI Agent 设计
79 lines
1.6 KiB
Go
79 lines
1.6 KiB
Go
//go:build !windows
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// Package collector — Swap 采集器
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// 从 /proc/meminfo 读取 SwapTotal / SwapFree
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// 仅当系统有 swap 分区时返回有效数据
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//
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// 署名 Logan.Li
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package collector
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import (
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"bufio"
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"os"
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"strings"
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"ezops/agent/model"
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)
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// SwapCollector 交换分区采集器
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type SwapCollector struct{}
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// NewSwapCollector 创建 Swap 采集器
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func NewSwapCollector() *SwapCollector {
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return &SwapCollector{}
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}
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// Collect 读取 swap 指标
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func (s *SwapCollector) Collect() (*model.SwapStat, error) {
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f, err := os.Open("/proc/meminfo")
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if err != nil {
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return nil, err
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}
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defer f.Close()
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var swapTotal, swapFree uint64
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scanner := bufio.NewScanner(f)
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for scanner.Scan() {
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line := scanner.Text()
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fields := strings.Fields(line)
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if len(fields) < 2 {
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continue
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}
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// Line format: "SwapTotal: 0 kB"
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key := strings.TrimSuffix(fields[0], ":")
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switch key {
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case "SwapTotal":
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swapTotal, _ = parseUint64(fields[1])
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case "SwapFree":
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swapFree, _ = parseUint64(fields[1])
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}
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}
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// No swap configured — return nil (caller should omit from report)
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if swapTotal == 0 {
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return nil, nil
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}
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used := swapTotal - swapFree
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stat := &model.SwapStat{
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TotalGB: float64(swapTotal) / (1024.0 * 1024.0),
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UsedGB: float64(used) / (1024.0 * 1024.0),
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}
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if swapTotal > 0 {
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stat.UsagePercent = float64(used) / float64(swapTotal) * 100.0
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}
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return stat, nil
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}
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// parseUint64 parses a uint64 or returns 0
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func parseUint64(s string) (uint64, error) {
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var v uint64
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for _, c := range s {
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if c < '0' || c > '9' {
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break
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}
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v = v*10 + uint64(c-'0')
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}
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return v, nil
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}
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