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22 lines
723 B
Go
22 lines
723 B
Go
package cmdn
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import (
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"os/exec"
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"syscall"
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)
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// terminateProcess stops the command by sending its process group a SIGTERM signal.
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// Stop is idempotent. An error should only be returning to the rare case that
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// Stop is called immediately after the command ends but before Start can
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// update its internal state.
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func terminateProcess(pid int) error {
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// Signal the process group (-pid), not just the process, so that the process
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// and all its children are signaled. Else, child processes can keep running and
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// keep the stdout/stderr fd open and cause cmd.Wait to hang.
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return syscall.Kill(-pid, syscall.SIGTERM)
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}
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func setProcessGroupID(cmd *exec.Cmd) {
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cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
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}
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