- Modify directory listing operations for caching
- Update change notification handling

---

### Phase 5: RDMA (SMB Direct) Support
**Priority: LOW** | **Estimated Effort: 8-10 weeks**

RDMA provides high-speed, low-latency data transfer for supported network adapters.

#### 5.1 Core RDMA Infrastructure
```
Package: jcifs.internal.smb2.rdma

👥 📣 🎁 🔢 🆎 `SecurityScopes`, 🗄 ⚪️➡️ `fastapi.security`.

👉 `SecurityScopes` 🎓 🎏 `Request` (`Request` ⚙️ 🤚 📨 🎚 🔗).

{* ../../docs_src/security/tutorial005.py hl[8,105] *}

## ⚙️ `scopes`

🔢 `security_scopes` 🔜 🆎 `SecurityScopes`.

⚫️ 🔜 ✔️ 🏠 `scopes` ⏮️ 📇 ⚗ 🌐 ↔ ✔ ⚫️ & 🌐 🔗 👈 ⚙️ 👉 🎧-🔗. 👈 ⛓, 🌐 "⚓️"... 👉 💪 🔊 😨, ⚫️ 🔬 🔄 ⏪ 🔛.

pkg syscall (freebsd-386), const SO_DONTROUTE = 16
pkg syscall (freebsd-386), const SO_ERROR = 4103
pkg syscall (freebsd-386), const SO_KEEPALIVE = 8
pkg syscall (freebsd-386), const SO_LABEL = 4105
pkg syscall (freebsd-386), const SO_LINGER = 128
pkg syscall (freebsd-386), const SO_LISTENINCQLEN = 4115
pkg syscall (freebsd-386), const SO_LISTENQLEN = 4114
pkg syscall (freebsd-386), const SO_LISTENQLIMIT = 4113

    continuation.streamId = streamId

    // TODO: Concat multi-value headers with 0x0, except COOKIE, which uses 0x3B, 0x20.
    // http://tools.ietf.org/html/draft-ietf-httpbis-http2-17#section-8.1.2.5
    hpackReader.readHeaders()
    return hpackReader.getAndResetHeaderList()
  }

  @Throws(IOException::class)
  private fun readData(
    handler: Handler,
    length: Int,
    flags: Int,

    X88,
    X89,
    X90,
    X91,
    X92,
    X93,
    X94,
    X95,
    X96,
    X97,
    X98,
    X99,
    X100,
    X101,
    X102,
    X103,
    X104,
    X105,
    X106,
    X107,
    X108,
    X109,
    X110,
    X111,
    X112,
    X113,
    X114,
    X115,
    X116,
    X117,
    X118,
    X119,
    X120,
    X121,

        "U4.20", // #2
        "R0.00, R1.75, R1.26", // #3, after that the rate changes
        "R0.76", // #4, this is what the throttling would be with the old rate
        "R0.20, R0.10, R0.10, R0.10", // #5
        "U4.10", // #6
        "R0.00, R0.94, R0.81, R0.69, R0.57, R0.44, R0.32", // #7
        "R0.20, R0.10, R0.10, R0.10"); // #7 (cont.), note, this matches #5
  }

  public void testBurstyAndUpdate() {

        "U4.20", // #2
        "R0.00, R1.75, R1.26", // #3, after that the rate changes
        "R0.76", // #4, this is what the throttling would be with the old rate
        "R0.20, R0.10, R0.10, R0.10", // #5
        "U4.10", // #6
        "R0.00, R0.94, R0.81, R0.69, R0.57, R0.44, R0.32", // #7
        "R0.20, R0.10, R0.10, R0.10"); // #7 (cont.), note, this matches #5
  }

  public void testBurstyAndUpdate() {

// Provide a block size that affects latency. If 0 a default of 128KiB will be used.
// Block size can be up to 4MiB.
func newMetacacheWriter(out io.Writer, blockSize int) *metacacheWriter {
	if blockSize < 8<<10 {
		blockSize = 128 << 10
	}
	w := metacacheWriter{
		mw:        nil,
		blockSize: blockSize,
	}
	w.creator = func() error {
		s2w := s2.NewWriter(out, s2.WriterBlockSize(blockSize), s2.WriterConcurrency(2))

        assertFalse(restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE);

        range1 = VersionRange.createFromVersionSpec("(,1.0], [1.1,)");
        range2 = VersionRange.createFromVersionSpec("1.0.5");
        mergedRange = range1.restrict(range2);
        assertNull(mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION);
        restrictions = mergedRange.getRestrictions();

break;case"meridian":this.toggleMeridian()}this.setTime(this.getTime()),c.get(0).setSelectionRange(0,2)}},widgetKeyup:function(a){(65===a.which||77===a.which||80===a.which||46===a.which||8===a.which||a.which>=48&&a.which<=57||a.which>=96&&a.which<=105)&&this.updateFromWidgetInputs()}},a.fn.timepicker=function(b){var c=Array.apply(null,arguments);return c.shift(),this.each(function(){var e=a(this),f=e.data("timepicker"),g="object"==typeof b&&b;f||e.data("timepicker",f=new d(this,a.extend({},a.fn....