mirror of https://github.com/containers/podman.git
82 lines
2.0 KiB
Go
82 lines
2.0 KiB
Go
//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd
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package machine
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import (
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"errors"
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"fmt"
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"syscall"
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"time"
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"github.com/containers/podman/v5/pkg/machine/define"
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psutil "github.com/shirou/gopsutil/v4/process"
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"github.com/sirupsen/logrus"
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"golang.org/x/sys/unix"
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)
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const (
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loops = 8
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sleepTime = time.Millisecond * 1
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)
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// backoffForProcess checks if the process still exists, for something like
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// sigterm. If the process still exists after loops and sleep time are exhausted,
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// an error is returned
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func backoffForProcess(p *psutil.Process) error {
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sleepInterval := sleepTime
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for i := 0; i < loops; i++ {
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running, err := p.IsRunning()
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if err != nil {
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// It is possible that while in our loop, the PID vaporize triggering
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// an input/output error (#21845)
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if errors.Is(err, unix.EIO) {
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return nil
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}
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return fmt.Errorf("checking if process running: %w", err)
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}
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if !running {
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return nil
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}
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time.Sleep(sleepInterval)
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// double the time
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sleepInterval += sleepInterval
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}
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return fmt.Errorf("process %d has not ended", p.Pid)
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}
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// / waitOnProcess takes a pid and sends a sigterm to it. it then waits for the
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// process to not exist. if the sigterm does not end the process after an interval,
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// then sigkill is sent. it also waits for the process to exit after the sigkill too.
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func waitOnProcess(processID int) error {
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logrus.Infof("Going to stop gvproxy (PID %d)", processID)
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p, err := psutil.NewProcess(int32(processID))
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if err != nil {
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return fmt.Errorf("looking up PID %d: %w", processID, err)
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}
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running, err := p.IsRunning()
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if err != nil {
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return fmt.Errorf("checking if gvproxy is running: %w", err)
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}
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if !running {
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return nil
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}
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if err := p.Kill(); err != nil {
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if errors.Is(err, syscall.ESRCH) {
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logrus.Debugf("Gvproxy already dead, exiting cleanly")
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return nil
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}
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return err
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}
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return backoffForProcess(p)
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}
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// removeGVProxyPIDFile is just a wrapper to vmfile delete so we handle differently
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// on windows
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func removeGVProxyPIDFile(f define.VMFile) error {
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return f.Delete()
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}
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