func makeFile(name string, t *testing.T) (*torus.Server, *torus.File) {
srv := torus.NewMemoryServer()
vol := &models.Volume{
Name: name,
Id: 3,
Type: "test",
}
globals, err := srv.MDS.GlobalMetadata()
if err != nil {
t.Fatal(err)
}
bs, err := blockset.CreateBlocksetFromSpec(globals.DefaultBlockSpec, srv.Blocks)
if err != nil {
t.Fatal(err)
}
inode := models.NewEmptyINode()
inode.INode = 1
inode.Volume = vol.Id
inode.Blocks, err = torus.MarshalBlocksetToProto(bs)
f, err := srv.CreateFile(vol, inode, bs)
if err != nil {
t.Fatal(err)
}
return srv, f
}
// testAoEServer sets up a Torus AoE server and returns:
// - an io.Reader which contains the server's response to a request
// - an io.Writer which can be used to issue a request to the server
// - a closure which can be used to run the server for a single
// request/response cycle
// - a closure which can be used to tear down all server resources
func testAoEServer(t *testing.T) (response io.Reader, request io.Writer, run func() error, done func()) {
ts := torus.NewMemoryServer()
mds, err := temp.NewTemp(ts.Cfg)
if err != nil {
t.Fatalf("failed to configure metadata service: %v", err)
}
ts.MDS = mds
const volName = "test"
if err := block.CreateBlockVolume(mds, volName, 1024); err != nil {
t.Fatalf("failed to create block volume: %v", err)
}
vol, err := block.OpenBlockVolume(ts, volName)
if err != nil {
t.Fatalf("error opening block volume: %v", err)
}
as, err := NewServer(vol, nil)
if err != nil {
t.Fatalf("error opening AoE server: %v", err)
}
serverWrite := bytes.NewBuffer(nil)
serverRead := bytes.NewBuffer(nil)
bp := &bufPacketConn{
rb: serverWrite,
wb: serverRead,
}
iface := &Interface{
Interface: &net.Interface{
Name: "lo",
MTU: testMTU,
},
PacketConn: bp,
}
run = func() error {
if err := as.Serve(iface); err != nil {
return fmt.Errorf("failed to serve AoE: %v", err)
}
bp.mu.Lock()
defer bp.mu.Unlock()
if !bp.gotBroadcast {
return errors.New("broadcast advertise was never received")
}
return nil
}
done = func() {
_ = as.Close()
_ = iface.PacketConn.Close()
_ = ts.Close()
}
return serverRead, serverWrite, run, done
}