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// SPDX-License-Identifier: BSD-3-Clause
package process
import (
"bytes"
"context"
"os"
"strconv"
"strings"
"github.com/shirou/gopsutil/v4/cpu"
"github.com/shirou/gopsutil/v4/internal/common"
"github.com/shirou/gopsutil/v4/net"
)
type MemoryMapsStat struct {
Path string `json:"path"`
Rss uint64 `json:"rss"`
Size uint64 `json:"size"`
Pss uint64 `json:"pss"`
SharedClean uint64 `json:"sharedClean"`
SharedDirty uint64 `json:"sharedDirty"`
PrivateClean uint64 `json:"privateClean"`
PrivateDirty uint64 `json:"privateDirty"`
Referenced uint64 `json:"referenced"`
Anonymous uint64 `json:"anonymous"`
Swap uint64 `json:"swap"`
}
type MemoryInfoExStat struct{}
func pidsWithContext(ctx context.Context) ([]int32, error) {
return readPidsFromDir(common.HostProcWithContext(ctx))
}
func ProcessesWithContext(ctx context.Context) ([]*Process, error) {
out := []*Process{}
pids, err := PidsWithContext(ctx)
if err != nil {
return out, err
}
for _, pid := range pids {
p, err := NewProcessWithContext(ctx, pid)
if err != nil {
continue
}
out = append(out, p)
}
return out, nil
}
func (p *Process) PpidWithContext(ctx context.Context) (int32, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) NameWithContext(ctx context.Context) (string, error) {
return "", common.ErrNotImplementedError
}
func (p *Process) TgidWithContext(ctx context.Context) (int32, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) ExeWithContext(ctx context.Context) (string, error) {
exe, err := p.fillFromPathAOutWithContext(ctx)
if os.IsNotExist(err) {
exe, err = p.fillFromExecnameWithContext(ctx)
}
return exe, err
}
func (p *Process) CmdlineWithContext(ctx context.Context) (string, error) {
return p.fillFromCmdlineWithContext(ctx)
}
func (p *Process) CmdlineSliceWithContext(ctx context.Context) ([]string, error) {
return p.fillSliceFromCmdlineWithContext(ctx)
}
func (p *Process) createTimeWithContext(ctx context.Context) (int64, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) CwdWithContext(ctx context.Context) (string, error) {
return p.fillFromPathCwdWithContext(ctx)
}
func (p *Process) StatusWithContext(ctx context.Context) ([]string, error) {
return []string{""}, common.ErrNotImplementedError
}
func (p *Process) ForegroundWithContext(ctx context.Context) (bool, error) {
return false, common.ErrNotImplementedError
}
func (p *Process) UidsWithContext(ctx context.Context) ([]uint32, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) GidsWithContext(ctx context.Context) ([]uint32, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) GroupsWithContext(ctx context.Context) ([]uint32, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) TerminalWithContext(ctx context.Context) (string, error) {
return "", common.ErrNotImplementedError
}
func (p *Process) NiceWithContext(ctx context.Context) (int32, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) IOniceWithContext(ctx context.Context) (int32, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) RlimitWithContext(ctx context.Context) ([]RlimitStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) RlimitUsageWithContext(ctx context.Context, gatherUsed bool) ([]RlimitStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) IOCountersWithContext(ctx context.Context) (*IOCountersStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) NumCtxSwitchesWithContext(ctx context.Context) (*NumCtxSwitchesStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) NumFDsWithContext(ctx context.Context) (int32, error) {
_, fnames, err := p.fillFromfdListWithContext(ctx)
return int32(len(fnames)), err
}
func (p *Process) NumThreadsWithContext(ctx context.Context) (int32, error) {
return 0, common.ErrNotImplementedError
}
func (p *Process) ThreadsWithContext(ctx context.Context) (map[int32]*cpu.TimesStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) TimesWithContext(ctx context.Context) (*cpu.TimesStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) CPUAffinityWithContext(ctx context.Context) ([]int32, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) MemoryInfoWithContext(ctx context.Context) (*MemoryInfoStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) MemoryInfoExWithContext(ctx context.Context) (*MemoryInfoExStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) PageFaultsWithContext(ctx context.Context) (*PageFaultsStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) ChildrenWithContext(ctx context.Context) ([]*Process, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) OpenFilesWithContext(ctx context.Context) ([]OpenFilesStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) ConnectionsWithContext(ctx context.Context) ([]net.ConnectionStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) ConnectionsMaxWithContext(ctx context.Context, maxConn int) ([]net.ConnectionStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) MemoryMapsWithContext(ctx context.Context, grouped bool) (*[]MemoryMapsStat, error) {
return nil, common.ErrNotImplementedError
}
func (p *Process) EnvironWithContext(ctx context.Context) ([]string, error) {
return nil, common.ErrNotImplementedError
}
/**
** Internal functions
**/
func (p *Process) fillFromfdListWithContext(ctx context.Context) (string, []string, error) {
pid := p.Pid
statPath := common.HostProcWithContext(ctx, strconv.Itoa(int(pid)), "fd")
d, err := os.Open(statPath)
if err != nil {
return statPath, []string{}, err
}
defer d.Close()
fnames, err := d.Readdirnames(-1)
return statPath, fnames, err
}
func (p *Process) fillFromPathCwdWithContext(ctx context.Context) (string, error) {
pid := p.Pid
cwdPath := common.HostProcWithContext(ctx, strconv.Itoa(int(pid)), "path", "cwd")
cwd, err := os.Readlink(cwdPath)
if err != nil {
return "", err
}
return cwd, nil
}
func (p *Process) fillFromPathAOutWithContext(ctx context.Context) (string, error) {
pid := p.Pid
cwdPath := common.HostProcWithContext(ctx, strconv.Itoa(int(pid)), "path", "a.out")
exe, err := os.Readlink(cwdPath)
if err != nil {
return "", err
}
return exe, nil
}
func (p *Process) fillFromExecnameWithContext(ctx context.Context) (string, error) {
pid := p.Pid
execNamePath := common.HostProcWithContext(ctx, strconv.Itoa(int(pid)), "execname")
exe, err := os.ReadFile(execNamePath)
if err != nil {
return "", err
}
return string(exe), nil
}
func (p *Process) fillFromCmdlineWithContext(ctx context.Context) (string, error) {
pid := p.Pid
cmdPath := common.HostProcWithContext(ctx, strconv.Itoa(int(pid)), "cmdline")
cmdline, err := os.ReadFile(cmdPath)
if err != nil {
return "", err
}
ret := strings.FieldsFunc(string(cmdline), func(r rune) bool {
return r == '\u0000'
})
return strings.Join(ret, " "), nil
}
func (p *Process) fillSliceFromCmdlineWithContext(ctx context.Context) ([]string, error) {
pid := p.Pid
cmdPath := common.HostProcWithContext(ctx, strconv.Itoa(int(pid)), "cmdline")
cmdline, err := os.ReadFile(cmdPath)
if err != nil {
return nil, err
}
if len(cmdline) == 0 {
return nil, nil
}
if cmdline[len(cmdline)-1] == 0 {
cmdline = cmdline[:len(cmdline)-1]
}
parts := bytes.Split(cmdline, []byte{0})
var strParts []string
for _, p := range parts {
strParts = append(strParts, string(p))
}
return strParts, nil
}
func readPidsFromDir(path string) ([]int32, error) {
var ret []int32
d, err := os.Open(path)
if err != nil {
return nil, err
}
defer d.Close()
fnames, err := d.Readdirnames(-1)
if err != nil {
return nil, err
}
for _, fname := range fnames {
pid, err := strconv.ParseInt(fname, 10, 32)
if err != nil {
// if not numeric name, just skip
continue
}
ret = append(ret, int32(pid))
}
return ret, nil
}
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