47 lines
774 B
Go
47 lines
774 B
Go
//go:build unix
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package process
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import (
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"errors"
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"os"
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"os/exec"
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"syscall"
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)
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func configureProcessForSignals(cmd *exec.Cmd) {
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cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
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}
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func SignalProcess(cmd *exec.Cmd, sig os.Signal) error {
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if cmd == nil || cmd.Process == nil {
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return nil
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}
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pid := cmd.Process.Pid
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if pid <= 0 {
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return nil
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}
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sysSig, ok := sig.(syscall.Signal)
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if !ok {
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return cmd.Process.Signal(sig)
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}
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err := syscall.Kill(-pid, sysSig)
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if err == nil || errors.Is(err, syscall.ESRCH) {
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return nil
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}
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return cmd.Process.Signal(sig)
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}
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func ProcessAlive(cmd *exec.Cmd) bool {
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if cmd == nil || cmd.Process == nil {
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return false
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}
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err := syscall.Kill(-cmd.Process.Pid, 0)
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return err == nil || errors.Is(err, syscall.EPERM)
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}
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