123 lines
2.4 KiB
Go
123 lines
2.4 KiB
Go
// +build linux freebsd darwin
|
|
|
|
package process
|
|
|
|
import (
|
|
"os"
|
|
"os/exec"
|
|
"os/user"
|
|
"strconv"
|
|
"strings"
|
|
"syscall"
|
|
|
|
"github.com/shirou/gopsutil/internal/common"
|
|
)
|
|
|
|
// POSIX
|
|
func getTerminalMap() (map[uint64]string, error) {
|
|
ret := make(map[uint64]string)
|
|
var termfiles []string
|
|
|
|
d, err := os.Open("/dev")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer d.Close()
|
|
|
|
devnames, err := d.Readdirnames(-1)
|
|
for _, devname := range devnames {
|
|
if strings.HasPrefix(devname, "/dev/tty") {
|
|
termfiles = append(termfiles, "/dev/tty/"+devname)
|
|
}
|
|
}
|
|
|
|
ptsd, err := os.Open("/dev/pts")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer ptsd.Close()
|
|
|
|
ptsnames, err := ptsd.Readdirnames(-1)
|
|
for _, ptsname := range ptsnames {
|
|
termfiles = append(termfiles, "/dev/pts/"+ptsname)
|
|
}
|
|
|
|
for _, name := range termfiles {
|
|
stat := syscall.Stat_t{}
|
|
if err = syscall.Stat(name, &stat); err != nil {
|
|
return nil, err
|
|
}
|
|
rdev := uint64(stat.Rdev)
|
|
ret[rdev] = strings.Replace(name, "/dev", "", -1)
|
|
}
|
|
return ret, nil
|
|
}
|
|
|
|
// SendSignal sends a syscall.Signal to the process.
|
|
// Currently, SIGSTOP, SIGCONT, SIGTERM and SIGKILL are supported.
|
|
func (p *Process) SendSignal(sig syscall.Signal) error {
|
|
sigAsStr := "INT"
|
|
switch sig {
|
|
case syscall.SIGSTOP:
|
|
sigAsStr = "STOP"
|
|
case syscall.SIGCONT:
|
|
sigAsStr = "CONT"
|
|
case syscall.SIGTERM:
|
|
sigAsStr = "TERM"
|
|
case syscall.SIGKILL:
|
|
sigAsStr = "KILL"
|
|
}
|
|
|
|
kill, err := exec.LookPath("kill")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
cmd := exec.Command(kill, "-s", sigAsStr, strconv.Itoa(int(p.Pid)))
|
|
cmd.Stderr = os.Stderr
|
|
if err := cmd.Start(); err != nil {
|
|
return err
|
|
}
|
|
err = common.WaitTimeout(cmd, common.Timeout)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// Suspend sends SIGSTOP to the process.
|
|
func (p *Process) Suspend() error {
|
|
return p.SendSignal(syscall.SIGSTOP)
|
|
}
|
|
|
|
// Resume sends SIGCONT to the process.
|
|
func (p *Process) Resume() error {
|
|
return p.SendSignal(syscall.SIGCONT)
|
|
}
|
|
|
|
// Terminate sends SIGTERM to the process.
|
|
func (p *Process) Terminate() error {
|
|
return p.SendSignal(syscall.SIGTERM)
|
|
}
|
|
|
|
// Kill sends SIGKILL to the process.
|
|
func (p *Process) Kill() error {
|
|
return p.SendSignal(syscall.SIGKILL)
|
|
}
|
|
|
|
// Username returns a username of the process.
|
|
func (p *Process) Username() (string, error) {
|
|
uids, err := p.Uids()
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
if len(uids) > 0 {
|
|
u, err := user.LookupId(strconv.Itoa(int(uids[0])))
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return u.Username, nil
|
|
}
|
|
return "", nil
|
|
}
|