dotcloud/docker

//go:build !windows

package daemon // import "github.com/docker/docker/testutil/daemon"

import (
    "os/exec"
    "syscall"
    "testing"

    "github.com/moby/sys/mount"
    "golang.org/x/sys/unix"
)

// cleanupMount unmounts the daemon root directory, or logs a message if
// unmounting failed.
func cleanupMount(t testing.TB, d *Daemon) {
    t.Helper()
    if err := mount.Unmount(d.Root); err != nil {
        d.log.Logf("[%s] unable to unmount daemon root (%s): %v", d.id, d.Root, err)
    }
}

// SignalDaemonDump sends a signal to the daemon to write a dump file
func SignalDaemonDump(pid int) {
    unix.Kill(pid, unix.SIGQUIT)
}

func signalDaemonReload(pid int) error {
    return unix.Kill(pid, unix.SIGHUP)
}

func setsid(cmd *exec.Cmd) {
    if cmd.SysProcAttr == nil {
        cmd.SysProcAttr = &syscall.SysProcAttr{}
    }
    cmd.SysProcAttr.Setsid = true
}