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//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd
// +build darwin dragonfly freebsd linux netbsd openbsd
package qemu
import (
"bytes"
"fmt"
"syscall"
"golang.org/x/sys/unix"
)
func isProcessAlive(pid int) bool {
err := unix.Kill(pid, syscall.Signal(0))
if err == nil || err == unix.EPERM {
return true
}
return false
}
func checkProcessStatus(processHint string, pid int, stderrBuf *bytes.Buffer) error {
var status syscall.WaitStatus
pid, err := syscall.Wait4(pid, &status, syscall.WNOHANG, nil)
if err != nil {
return fmt.Errorf("failed to read qem%su process status: %w", processHint, err)
}
if pid > 0 {
// child exited
return fmt.Errorf("%s exited unexpectedly with exit code %d, stderr: %s", processHint, status.ExitStatus(), stderrBuf.String())
}
return nil
}
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