github.com/jwhonce/docker@v0.6.7-0.20190327063223-da823cf3a5a3/internal/test/daemon/daemon_unix.go (about)

     1  // +build !windows
     2  
     3  package daemon // import "github.com/docker/docker/internal/test/daemon"
     4  
     5  import (
     6  	"os"
     7  	"path/filepath"
     8  
     9  	"github.com/docker/docker/internal/test"
    10  	"golang.org/x/sys/unix"
    11  )
    12  
    13  func cleanupNetworkNamespace(t testingT, execRoot string) {
    14  	if ht, ok := t.(test.HelperT); ok {
    15  		ht.Helper()
    16  	}
    17  	// Cleanup network namespaces in the exec root of this
    18  	// daemon because this exec root is specific to this
    19  	// daemon instance and has no chance of getting
    20  	// cleaned up when a new daemon is instantiated with a
    21  	// new exec root.
    22  	netnsPath := filepath.Join(execRoot, "netns")
    23  	filepath.Walk(netnsPath, func(path string, info os.FileInfo, err error) error {
    24  		if err := unix.Unmount(path, unix.MNT_DETACH); err != nil && err != unix.EINVAL && err != unix.ENOENT {
    25  			t.Logf("unmount of %s failed: %v", path, err)
    26  		}
    27  		os.Remove(path)
    28  		return nil
    29  	})
    30  }
    31  
    32  // SignalDaemonDump sends a signal to the daemon to write a dump file
    33  func SignalDaemonDump(pid int) {
    34  	unix.Kill(pid, unix.SIGQUIT)
    35  }
    36  
    37  func signalDaemonReload(pid int) error {
    38  	return unix.Kill(pid, unix.SIGHUP)
    39  }