79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
// Copyright 2016-2018, Pulumi Corporation.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
// +build windows
|
|
|
|
package cmdutil
|
|
|
|
import (
|
|
"os"
|
|
"os/exec"
|
|
|
|
multierror "github.com/hashicorp/go-multierror"
|
|
ps "github.com/mitchellh/go-ps"
|
|
)
|
|
|
|
// KillChildren calls os.Process.Kill() on every child process of `pid`'s, stoping after the first error (if any). It
|
|
// also only kills direct child process, not any children they may have. This function is only implemented on Windows.
|
|
func KillChildren(pid int) error {
|
|
procs, err := ps.Processes()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
var result error
|
|
|
|
for _, proc := range procs {
|
|
if proc.PPid() == pid {
|
|
toKill, err := os.FindProcess(proc.Pid())
|
|
if err != nil {
|
|
// It's possible that the process has already exited, let's see if it still exists. Either way, we won't
|
|
// try to kill it but we will add the original error from os.FindProcess() if we can't prove it doesn't
|
|
// exits.
|
|
exists, existsErr := processExistsWithParent(proc.Pid(), proc.PPid())
|
|
if existsErr != nil || exists {
|
|
result = multierror.Append(result, err)
|
|
}
|
|
continue
|
|
}
|
|
|
|
err = toKill.Kill()
|
|
if err != nil {
|
|
result = multierror.Append(result, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
return result
|
|
}
|
|
|
|
func processExistsWithParent(pid int, ppid int) (bool, error) {
|
|
procs, err := ps.Processes()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
for _, proc := range procs {
|
|
if proc.Pid() == pid {
|
|
return proc.PPid() == ppid, nil
|
|
}
|
|
}
|
|
|
|
return false, nil
|
|
}
|
|
|
|
// RegisterProcessGroup does nothing on Windows.
|
|
func RegisterProcessGroup(cmd *exec.Cmd) {
|
|
// nothing to do on Windows.
|
|
}
|