github.com/rita33cool1/iot-system-gateway@v0.0.0-20200911033302-e65bde238cc5/docker-engine/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  	"golang.org/x/sys/unix"
    10  )
    11  
    12  func cleanupExecRoot(t testingT, execRoot string) {
    13  	// Cleanup network namespaces in the exec root of this
    14  	// daemon because this exec root is specific to this
    15  	// daemon instance and has no chance of getting
    16  	// cleaned up when a new daemon is instantiated with a
    17  	// new exec root.
    18  	netnsPath := filepath.Join(execRoot, "netns")
    19  	filepath.Walk(netnsPath, func(path string, info os.FileInfo, err error) error {
    20  		if err := unix.Unmount(path, unix.MNT_FORCE); err != nil {
    21  			t.Logf("unmount of %s failed: %v", path, err)
    22  		}
    23  		os.Remove(path)
    24  		return nil
    25  	})
    26  }
    27  
    28  // SignalDaemonDump sends a signal to the daemon to write a dump file
    29  func SignalDaemonDump(pid int) {
    30  	unix.Kill(pid, unix.SIGQUIT)
    31  }
    32  
    33  func signalDaemonReload(pid int) error {
    34  	return unix.Kill(pid, unix.SIGHUP)
    35  }