62 lines
1.2 KiB
Go
62 lines
1.2 KiB
Go
package systats
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import (
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"strconv"
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"strings"
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"github.com/dhamith93/systats/exec"
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"github.com/dhamith93/systats/internal/fileops"
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)
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// Process holds information on single process
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type Process struct {
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Pid int
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ExecPath string
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User string
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CPUUsage float32
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MemUsage float32
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}
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func getTopProcesses(count int, sort string) ([]Process, error) {
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result := exec.Execute("ps", "-eo", "pid,%cpu,%mem,user", "--no-headers", "--sort="+sort)
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resultArray := strings.Split(result, "\n")
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out := []Process{}
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for i, process := range resultArray {
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if i+1 > count {
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break
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}
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processArray := strings.Fields(process)
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if len(processArray) == 0 {
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continue
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}
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pid, err := strconv.Atoi(processArray[0])
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if err != nil {
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return out, err
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}
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cpuUsage, err := strconv.ParseFloat(processArray[1], 32)
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if err != nil {
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return out, err
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}
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memUsage, err := strconv.ParseFloat(processArray[2], 32)
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if err != nil {
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return out, err
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}
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execPath, err := fileops.ReadFileWithError("/proc/" + processArray[0] + "/cmdline")
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if err != nil {
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continue
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}
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out = append(out, Process{
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Pid: pid,
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CPUUsage: float32(cpuUsage),
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MemUsage: float32(memUsage),
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User: processArray[3],
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ExecPath: execPath,
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})
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}
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return out, nil
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}
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