50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
|
|
|
|
package executor
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"syscall"
|
|
)
|
|
|
|
// configure new process group for child process
|
|
func (e *UniversalExecutor) setNewProcessGroup() error {
|
|
if e.childCmd.SysProcAttr == nil {
|
|
e.childCmd.SysProcAttr = &syscall.SysProcAttr{}
|
|
}
|
|
e.childCmd.SysProcAttr.Setpgid = true
|
|
return nil
|
|
}
|
|
|
|
// SIGKILL the process group starting at process.Pid
|
|
func (e *UniversalExecutor) killProcessTree(process *os.Process) error {
|
|
pid := process.Pid
|
|
negative := -pid // tells unix to kill entire process group
|
|
signal := syscall.SIGKILL
|
|
|
|
// If new process group was created upon command execution
|
|
// we can kill the whole process group now to cleanup any leftovers.
|
|
if e.childCmd.SysProcAttr != nil && e.childCmd.SysProcAttr.Setpgid {
|
|
e.logger.Trace("sending sigkill to process group", "pid", pid, "negative", negative, "signal", signal)
|
|
if err := syscall.Kill(negative, signal); err != nil && err.Error() != noSuchProcessErr {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
return process.Kill()
|
|
}
|
|
|
|
// Only send the process a shutdown signal (default INT), doesn't
|
|
// necessarily kill it.
|
|
func (e *UniversalExecutor) shutdownProcess(sig os.Signal, proc *os.Process) error {
|
|
if sig == nil {
|
|
sig = os.Interrupt
|
|
}
|
|
|
|
if err := proc.Signal(sig); err != nil && err.Error() != finishedErr {
|
|
return fmt.Errorf("executor shutdown error: %v", err)
|
|
}
|
|
|
|
return nil
|
|
}
|