mirror of
https://github.com/lkmio/gb-cms.git
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424 lines
9.7 KiB
Go
424 lines
9.7 KiB
Go
package main
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// 每秒钟统计系统资源占用, 包括: cpu/流量/磁盘/内存
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import (
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"encoding/json"
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"fmt"
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"gb-cms/common"
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"gb-cms/dao"
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"gb-cms/log"
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"gb-cms/stack"
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"github.com/shirou/gopsutil/v3/cpu"
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"github.com/shirou/gopsutil/v3/disk"
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"github.com/shirou/gopsutil/v3/mem"
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"github.com/shirou/gopsutil/v3/net"
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"math"
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"net/http"
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"strings"
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"time"
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)
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var (
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topStats *TopStats
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topStatsJson string
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diskStatsJson string
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lastNetStatsJson string
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lastNetStats []net.IOCountersStat
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ChannelTotalCount int
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ChannelOnlineCount int
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)
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const (
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// MaxStatsCount 最大统计条数
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MaxStatsCount = 30
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)
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func init() {
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topStats = &TopStats{
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Load: []struct {
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Time string `json:"time"`
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Load float64 `json:"load"`
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Serial string `json:"serial"`
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Name string `json:"name"`
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}{
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{
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Time: time.Now().Format("2006-01-02 15:04:05"),
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Load: 0,
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Serial: "",
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Name: "直播",
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},
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{
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Time: time.Now().Format("2006-01-02 15:04:05"),
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Load: 0,
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Serial: "",
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Name: "回放",
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},
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{
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Time: time.Now().Format("2006-01-02 15:04:05"),
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Load: 0,
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Serial: "",
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Name: "播放",
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},
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{
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Time: time.Now().Format("2006-01-02 15:04:05"),
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Load: 0,
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Serial: "",
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Name: "H265",
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},
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{
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Time: time.Now().Format("2006-01-02 15:04:05"),
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Load: 0,
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Serial: "",
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Name: "录像",
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},
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{
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Time: time.Now().Format("2006-01-02 15:04:05"),
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Load: 0,
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Serial: "",
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Name: "级联",
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},
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},
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}
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}
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type TopStats struct {
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CPU []struct {
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Time string `json:"time"`
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Use float64 `json:"use"`
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} `json:"cpuData"`
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Load []struct {
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Time string `json:"time"`
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Load float64 `json:"load"`
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Serial string `json:"serial"`
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Name string `json:"name"`
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} `json:"loadData"`
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Mem []struct {
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Time string `json:"time"`
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Use float64 `json:"use"`
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} `json:"memData"`
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Net []struct {
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Time string `json:"time"`
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Sent float64 `json:"sent"`
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Recv float64 `json:"recv"`
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} `json:"netData"`
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}
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// FormatDiskSize 返回大小和单位
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func FormatDiskSize(size uint64) (string, string) {
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const (
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KB = 1024
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MB = 1024 * KB
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GB = 1024 * MB
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)
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switch {
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case size >= GB:
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return fmt.Sprintf("%.2f", float64(size)/GB), "G"
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case size >= MB:
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return fmt.Sprintf("%.2f MB", float64(size)/MB), "M"
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case size >= KB:
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return fmt.Sprintf("%.2f KB", float64(size)/KB), "K"
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default:
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return fmt.Sprintf("%d B", size), "B"
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}
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}
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// {{ edit_1 }} 添加磁盘信息显示函数
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func stateDiskUsage() ([]struct {
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Name string
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Unit string
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Size string
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FreeSpace string
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Used string
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Percent string
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Threshold string
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}, error) {
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// 获取所有磁盘分区
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partitions, err := disk.Partitions(false) // true表示获取所有分区，包括远程分区
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if err != nil {
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return nil, err
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}
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var result []struct {
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Name string
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Unit string
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Size string
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FreeSpace string
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Used string
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Percent string
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Threshold string
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}
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for _, partition := range partitions {
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// 跳过某些特殊文件系统类型
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if partition.Fstype == "tmpfs" || partition.Fstype == "devtmpfs" || partition.Fstype == "squashfs" {
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continue
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}
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// 获取分区使用情况
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usage, err := disk.Usage(partition.Mountpoint)
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if err != nil {
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// 某些分区可能无法访问，跳过
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continue
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}
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// 格式化磁盘大小
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size, unit := FormatDiskSize(usage.Total)
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freeSpace, unit := FormatDiskSize(usage.Free)
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used, unit := FormatDiskSize(usage.Used)
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percent := fmt.Sprintf("%.2f", usage.UsedPercent)
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result = append(result, struct {
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Name string
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Unit string
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Size string
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FreeSpace string
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Used string
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Percent string
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Threshold string
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}{Name: partition.Mountpoint, Unit: unit, Size: size, FreeSpace: freeSpace, Used: used, Percent: percent, Threshold: ""})
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}
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return result, nil
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}
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// 统计上下行流量
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func stateNet(refreshInterval time.Duration) (float64, float64, error) {
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if lastNetStats == nil {
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// 获取初始的网络 IO 计数器
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lastStats, err := net.IOCounters(true) // pernic=true 表示按接口分别统计
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if err != nil {
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return 0, 0, err
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}
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lastNetStats = lastStats
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}
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currentStats, err := net.IOCounters(true)
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if err != nil {
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return 0, 0, err
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}
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var rxTotal float64
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var txTotal float64
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for _, current := range currentStats {
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if !isPhysicalInterface(current.Name, current) {
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continue
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}
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for _, last := range lastNetStats {
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if current.Name == last.Name {
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// 核心计算逻辑
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rxRate := float64(current.BytesRecv-last.BytesRecv) / refreshInterval.Seconds()
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txRate := float64(current.BytesSent-last.BytesSent) / refreshInterval.Seconds()
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rxTotal += rxRate
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txTotal += txRate
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break
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}
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}
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}
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// 更新 lastStats
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lastNetStats = currentStats
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// 按照Mbps统计, 保留3位小数
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rxTotal = math.Round(rxTotal*8/1024/1024*1000) / 1000
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txTotal = math.Round(txTotal*8/1024/1024*1000) / 1000
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return rxTotal, txTotal, nil
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}
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func isPhysicalInterface(name string, stats net.IOCountersStat) bool {
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// 跳过本地回环接口
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if name == "lo" || strings.Contains(strings.ToLower(name), "loopback") {
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return false
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}
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// 跳过虚拟接口 - 基于名称特征
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virtualKeywords := []string{
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"virtual", "vmnet", "veth", "docker", "bridge", "tun", "tap",
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"npcap", "wfp", "lightweight", "filter", "vethernet", "isatap",
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"teredo", "6to4", "vpn", "ras", "ppp", "slip", "wlanusb",
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}
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lowerName := strings.ToLower(name)
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for _, keyword := range virtualKeywords {
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if strings.Contains(lowerName, keyword) {
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return false
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}
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}
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// 特殊处理"本地连接"前缀的接口
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if strings.HasPrefix(name, "本地连接") {
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// 但排除那些明显是虚拟的本地连接
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if strings.Contains(lowerName, "virtual") || strings.Contains(lowerName, "npcap") {
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return false
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}
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// 如果有实际流量数据，更可能是物理接口
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return stats.BytesRecv > 0 || stats.BytesSent > 0
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}
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// 基于流量数据判断（物理接口通常有流量）
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// 如果接口名称不包含虚拟特征且有流量数据，则认为是物理接口
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if stats.BytesRecv > 0 || stats.BytesSent > 0 {
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return true
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}
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// 对于没有流量的接口，基于名称判断
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physicalKeywords := []string{
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"ethernet", "以太网", "eth", "wlan", "wi-fi", "wireless", "wifi",
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"lan", "net", "intel", "realtek", "broadcom", "atheros", "qualcomm",
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}
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for _, keyword := range physicalKeywords {
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if strings.Contains(lowerName, keyword) {
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return true
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}
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}
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// 默认情况下，排除本地连接*这类虚拟接口
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if strings.HasPrefix(name, "本地连接*") {
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return false
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}
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return false
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}
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func StartStats() {
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// 统计间隔
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refreshInterval := 2 * time.Second
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ticker := time.NewTicker(refreshInterval)
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defer ticker.Stop()
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var count int
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for range ticker.C {
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now := time.Now().Format("2006-01-02 15:04:05")
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// 获取CPU使用率
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cpuPercent, err := cpu.Percent(time.Second, false)
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if err != nil {
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log.Sugar.Errorf("获取CPU信息失败: %v", err)
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} else {
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// 所有核心
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var cpuPercentTotal float64
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for _, f := range cpuPercent {
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cpuPercentTotal += f
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}
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// float64保留两位小数
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cpuPercentTotal = math.Round(cpuPercentTotal*100) / 100
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// 只统计30条，超过30条，删除最旧的
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if len(topStats.CPU) >= MaxStatsCount {
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topStats.CPU = topStats.CPU[1:]
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}
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topStats.CPU = append(topStats.CPU, struct {
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Time string `json:"time"`
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Use float64 `json:"use"`
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}{
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Time: now,
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Use: float64(cpuPercentTotal) / 100,
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})
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}
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// 获取内存信息
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memInfo, err := mem.VirtualMemory()
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if err != nil {
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log.Sugar.Errorf("获取内存信息失败: %v", err)
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} else {
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// 只统计30条，超过30条，删除最旧的
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if len(topStats.Mem) >= MaxStatsCount {
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topStats.Mem = topStats.Mem[1:]
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}
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topStats.Mem = append(topStats.Mem, struct {
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Time string `json:"time"`
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Use float64 `json:"use"`
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}{
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Time: now,
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Use: math.Round(memInfo.UsedPercent) / 100,
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})
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}
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// 获取网络信息
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rx, tx, err := stateNet(refreshInterval)
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if err != nil {
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log.Sugar.Errorf("获取网络信息失败: %v", err)
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} else {
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if len(topStats.Net) >= MaxStatsCount {
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topStats.Net = topStats.Net[1:]
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}
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topStats.Net = append(topStats.Net, struct {
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Time string `json:"time"`
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Sent float64 `json:"sent"`
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Recv float64 `json:"recv"`
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}{
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Time: now,
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Sent: tx,
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Recv: rx,
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})
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marshal, err := json.Marshal(topStats.Net[len(topStats.Net)-1])
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if err != nil {
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log.Sugar.Errorf("序列化网络信息失败: %v", err)
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} else {
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lastNetStatsJson = string(marshal)
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}
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}
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marshal, err := json.Marshal(common.MalformedRequest{
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Code: http.StatusOK,
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Msg: "Success",
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Data: topStats,
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})
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if err != nil {
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log.Sugar.Errorf("序列化统计信息失败: %v", err)
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} else {
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topStatsJson = string(marshal)
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}
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if count%5 == 0 {
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// 统计磁盘信息
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usage, err := stateDiskUsage()
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if err != nil {
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log.Sugar.Errorf("获取磁盘信息失败: %v", err)
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} else {
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bytes, err := json.Marshal(common.MalformedRequest{
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Code: http.StatusOK,
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Msg: "Success",
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Data: usage,
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})
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if err != nil {
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log.Sugar.Errorf("序列化磁盘信息失败: %v", err)
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} else {
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diskStatsJson = string(bytes)
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}
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}
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// 统计通道总数和在线数
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i, err := dao.Channel.TotalCount()
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if err != nil {
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log.Sugar.Errorf("获取通道总数失败: %v", err)
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} else {
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ChannelTotalCount = i
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}
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onlineCount, err := dao.Channel.OnlineCount(stack.OnlineDeviceManager.GetDeviceIds())
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if err != nil {
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log.Sugar.Errorf("获取在线通道数失败: %v", err)
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} else {
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ChannelOnlineCount = onlineCount
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}
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}
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count++
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}
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}
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