mirror of
https://github.com/siderolabs/talos.git
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ca35b85300
This change aims to make installations more unified and reliable. It introduces the concept of a mountpoint manager that is capable of mounting, unmounting, and moving a set of mountpoints in the correct order. Signed-off-by: Andrew Rynhard <andrew@andrewrynhard.com>
90 lines
2.0 KiB
Go
90 lines
2.0 KiB
Go
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package proc
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import (
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"fmt"
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"strings"
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"code.cloudfoundry.org/bytefmt"
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"github.com/prometheus/procfs"
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)
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// ProcessList contains all of the process stats we want
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// to display via top
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type ProcessList struct {
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Pid int
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PPID int
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NumThreads int
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VirtualMemory uint64
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ResidentMemory uint64
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CPUTime float64
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State string
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Command string
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Executable string
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Args string
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}
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// List processes the list of running processes and
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func List() ([]ProcessList, error) {
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p, err := procfs.AllProcs()
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if err != nil {
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return nil, err
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}
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return format(p)
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}
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func format(procs procfs.Procs) ([]ProcessList, error) {
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pl := make([]ProcessList, 0, len(procs))
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var (
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cmdline []string
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comm string
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err error
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exe string
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stats procfs.ProcStat
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)
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for _, proc := range procs {
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comm, err = proc.Comm()
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if err != nil {
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return nil, err
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}
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exe, err = proc.Executable()
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if err != nil {
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return nil, err
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}
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cmdline, err = proc.CmdLine()
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if err != nil {
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return nil, err
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}
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stats, err = proc.Stat()
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if err != nil {
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return nil, err
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}
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p := ProcessList{
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Pid: proc.PID,
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PPID: stats.PPID,
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State: stats.State,
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NumThreads: stats.NumThreads,
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CPUTime: stats.CPUTime(),
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VirtualMemory: uint64(stats.VirtualMemory()),
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ResidentMemory: uint64(stats.ResidentMemory()),
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Command: comm,
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Executable: exe,
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Args: strings.Join(cmdline, " "),
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}
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pl = append(pl, p)
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}
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return pl, nil
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}
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func (p *ProcessList) String() string {
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return fmt.Sprintf("%6d %1s %4d %8.2f %7s %7s %s %s", p.Pid, p.State, p.NumThreads, p.CPUTime, bytefmt.ByteSize(p.VirtualMemory), bytefmt.ByteSize(p.ResidentMemory), p.Command, p.Executable)
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}
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