Rename files

ts/util/MemoryStream.node.ts

@@ -0,0 +1,22 @@
+// Copyright 2025 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { InputStream } from '@signalapp/libsignal-client/dist/io.js';
+
+export class MemoryStream extends InputStream {
+  #offset = 0;
+
+  constructor(private readonly buffer: Uint8Array) {
+    super();
+  }
+
+  public override async read(amount: number): Promise<Uint8Array> {
+    const result = this.buffer.subarray(this.#offset, this.#offset + amount);
+    this.#offset += amount;
+    return result;
+  }
+
+  public override async skip(amount: number): Promise<void> {
+    this.#offset += amount;
+  }
+}