mirror of
https://github.com/taigrr/wtf
synced 2025-01-18 04:03:14 -08:00
107 lines
2.4 KiB
Go
107 lines
2.4 KiB
Go
package linux
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import (
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"io/ioutil"
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"strconv"
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"strings"
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"time"
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)
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type Stat struct {
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CPUStatAll CPUStat `json:"cpu_all"`
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CPUStats []CPUStat `json:"cpus"`
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Interrupts uint64 `json:"intr"`
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ContextSwitches uint64 `json:"ctxt"`
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BootTime time.Time `json:"btime"`
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Processes uint64 `json:"processes"`
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ProcsRunning uint64 `json:"procs_running"`
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ProcsBlocked uint64 `json:"procs_blocked"`
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}
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type CPUStat struct {
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Id string `json:"id"`
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User uint64 `json:"user"`
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Nice uint64 `json:"nice"`
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System uint64 `json:"system"`
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Idle uint64 `json:"idle"`
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IOWait uint64 `json:"iowait"`
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IRQ uint64 `json:"irq"`
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SoftIRQ uint64 `json:"softirq"`
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Steal uint64 `json:"steal"`
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Guest uint64 `json:"guest"`
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GuestNice uint64 `json:"guest_nice"`
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}
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func createCPUStat(fields []string) *CPUStat {
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s := CPUStat{}
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s.Id = fields[0]
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for i := 1; i < len(fields); i++ {
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v, _ := strconv.ParseUint(fields[i], 10, 64)
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switch i {
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case 1:
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s.User = v
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case 2:
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s.Nice = v
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case 3:
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s.System = v
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case 4:
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s.Idle = v
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case 5:
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s.IOWait = v
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case 6:
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s.IRQ = v
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case 7:
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s.SoftIRQ = v
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case 8:
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s.Steal = v
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case 9:
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s.Guest = v
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case 10:
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s.GuestNice = v
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}
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}
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return &s
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}
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func ReadStat(path string) (*Stat, error) {
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b, err := ioutil.ReadFile(path)
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if err != nil {
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return nil, err
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}
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content := string(b)
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lines := strings.Split(content, "\n")
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var stat Stat = Stat{}
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for i, line := range lines {
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fields := strings.Fields(line)
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if len(fields) == 0 {
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continue
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}
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if fields[0][:3] == "cpu" {
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if cpuStat := createCPUStat(fields); cpuStat != nil {
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if i == 0 {
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stat.CPUStatAll = *cpuStat
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} else {
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stat.CPUStats = append(stat.CPUStats, *cpuStat)
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}
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}
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} else if fields[0] == "intr" {
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stat.Interrupts, _ = strconv.ParseUint(fields[1], 10, 64)
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} else if fields[0] == "ctxt" {
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stat.ContextSwitches, _ = strconv.ParseUint(fields[1], 10, 64)
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} else if fields[0] == "btime" {
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seconds, _ := strconv.ParseInt(fields[1], 10, 64)
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stat.BootTime = time.Unix(seconds, 0)
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} else if fields[0] == "processes" {
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stat.Processes, _ = strconv.ParseUint(fields[1], 10, 64)
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} else if fields[0] == "procs_running" {
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stat.ProcsRunning, _ = strconv.ParseUint(fields[1], 10, 64)
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} else if fields[0] == "procs_blocked" {
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stat.ProcsBlocked, _ = strconv.ParseUint(fields[1], 10, 64)
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}
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}
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return &stat, nil
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}
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