Carlos Florêncio
57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
//go:build linux
|
|
|
|
package process
|
|
|
|
import (
|
|
"errors"
|
|
"os/exec"
|
|
"syscall"
|
|
)
|
|
|
|
// setProcGroup configures the command to run in its own process group.
|
|
// This allows us to kill all child processes together.
|
|
// On Linux, we also set Pdeathsig to ensure the child is killed if the parent dies
|
|
// unexpectedly (SIGKILL, crash, etc.) without calling Stop().
|
|
func setProcGroup(cmd *exec.Cmd) {
|
|
cmd.SysProcAttr = &syscall.SysProcAttr{
|
|
Setpgid: true,
|
|
Pdeathsig: syscall.SIGTERM,
|
|
}
|
|
}
|
|
|
|
func setAgentProcGroup(cmd *exec.Cmd) {
|
|
setProcGroup(cmd)
|
|
}
|
|
|
|
type processLifecycleHandle struct{}
|
|
|
|
func installProcessLifecycle(_ *exec.Cmd) (processLifecycleHandle, error) {
|
|
return processLifecycleHandle{}, nil
|
|
}
|
|
|
|
func releaseProcessLifecycle(_ processLifecycleHandle) {}
|
|
|
|
// killProcessGroup kills the entire process group for the given PID.
|
|
// Returns nil if successful, or an error if the kill failed.
|
|
func killProcessGroup(pid int) error {
|
|
// Kill the entire process group by using negative PID
|
|
return syscall.Kill(-pid, syscall.SIGKILL)
|
|
}
|
|
|
|
// terminateProcessGroup sends SIGTERM to the entire process group for graceful shutdown.
|
|
func terminateProcessGroup(pid int) error {
|
|
return syscall.Kill(-pid, syscall.SIGTERM)
|
|
}
|
|
|
|
func processGroupAlive(pid int) bool {
|
|
if pid <= 0 {
|
|
return false
|
|
}
|
|
err := syscall.Kill(-pid, 0)
|
|
return err == nil || errors.Is(err, syscall.EPERM)
|
|
}
|
|
|
|
func isProcessGroupMissing(err error) bool {
|
|
return errors.Is(err, syscall.ESRCH)
|
|
}
|