mirror of https://github.com/containers/podman.git
47 lines
1.0 KiB
Go
47 lines
1.0 KiB
Go
//go:build dragonfly || freebsd || linux || netbsd || openbsd
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package qemu
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import (
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"bytes"
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"fmt"
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"syscall"
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"golang.org/x/sys/unix"
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)
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func isProcessAlive(pid int) bool {
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err := unix.Kill(pid, syscall.Signal(0))
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if err == nil || err == unix.EPERM {
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return true
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}
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return false
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}
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func checkProcessStatus(processHint string, pid int, stderrBuf *bytes.Buffer) error {
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var status syscall.WaitStatus
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pid, err := syscall.Wait4(pid, &status, syscall.WNOHANG, nil)
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if err != nil {
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return fmt.Errorf("failed to read %s process status: %w", processHint, err)
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}
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if pid > 0 {
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// child exited
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return fmt.Errorf("%s exited unexpectedly with exit code %d, stderr: %s", processHint, status.ExitStatus(), stderrBuf.String())
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}
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return nil
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}
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func sigKill(pid int) error {
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return unix.Kill(pid, unix.SIGKILL)
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}
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func findProcess(pid int) (int, error) {
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if err := unix.Kill(pid, 0); err != nil {
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if err == unix.ESRCH {
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return -1, nil
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}
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return -1, fmt.Errorf("pinging QEMU process: %w", err)
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}
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return pid, nil
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}
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