fillReq:   make(chan struct{}),
		fillReady: make(chan int64),
	}

	go func() {
		var rpos int64 // total bytes read into buffer

		defer func() {
			atomic.StoreInt64(&sr.end, rpos)
			close(sr.fillReady)
		}()

		for range sr.fillReq {
		scan:
			n, err := r.Read(sr.nbuf[:])

			if n == 0 {
				switch err {
				case io.EOF: // reader is exhausted
					return

    ```

### Response Caching ([.kt][CacheResponseKotlin], [.java][CacheResponseJava])

To cache responses, you'll need a cache directory that you can read and write to, and a limit on the cache's size. The cache directory should be private, and untrusted applications should not be able to read its contents!

  public void testSlice_constrainedRange() throws IOException {
    long size = source.read().length;
    if (size >= 2) {
      ByteSource sliced = source.slice(1, size - 2);
      assertEquals(size - 2, sliced.read().length);
      ByteSource resliced = sliced.slice(0, size - 1);
      assertTrue(sliced.contentEquals(resliced));
    }
  }

        trans2FindNext2 = new Trans2FindNext2(config, TEST_SID, TEST_RESUME_KEY, TEST_FILENAME, TEST_BATCH_COUNT, TEST_BATCH_SIZE);

        byte[] buffer = new byte[10];
        int read = trans2FindNext2.readSetupWireFormat(buffer, 0, 10);

        assertEquals(0, read);
    }

    @Test
    void testReadParametersWireFormat() {
        // Test parameters wire format reading (should return 0)

app = FastAPI()


@app.post("/files/")
async def create_file(file: bytes = File(description="A file read as bytes")):
    return {"file_size": len(file)}


@app.post("/uploadfile/")
async def create_upload_file(
    file: UploadFile = File(description="A file read as UploadFile"),
):

@deprecated(
    "UJSONResponse is deprecated, FastAPI now serializes data directly to JSON "
    "bytes via Pydantic when a return type or response model is set, which is "
    "faster and doesn't need a custom response class. Read more in the FastAPI "
    "docs: https://fastapi.tiangolo.com/advanced/custom-response/#orjson-or-response-model "
    "and https://fastapi.tiangolo.com/tutorial/response-model/",
    category=FastAPIDeprecationWarning,

    original_read = StarletteUploadFile.read

    async def patched_read(self: StarletteUploadFile, size: int = -1) -> bytes:
        # Make the FIRST file slower *deterministically*
        if self.filename == "slow.txt":
            await anyio.sleep(0.05)
        return await original_read(self, size)

    monkeypatch.setattr(StarletteUploadFile, "read", patched_read)

    client = TestClient(app)

    stream = io.BytesIO(b"data")
    file = UploadFile(filename="file", file=stream, size=4)
    assert await file.read() == b"data"
    assert file.size == 4
    await file.write(b" and more data!")
    assert await file.read() == b""
    assert file.size == 19
    await file.seek(0)
    assert await file.read() == b"data and more data!"

        return reader.read(getPom(name), null);
    }

    @Test
    void testPluginConfiguration() throws Exception {
        testInheritance("plugin-configuration");
    }

    /**
     * Check most classical urls inheritance: directory structure where parent POM in parent directory
     * and child directory == artifactId
     * @throws IOException Model read problem
     */
    @Test

      return new ForwardingSource(source) {
        long totalBytesRead = 0L;

        @Override public long read(Buffer sink, long byteCount) throws IOException {
          long bytesRead = super.read(sink, byteCount);
          // read() returns the number of bytes read, or -1 if this source is exhausted.
          totalBytesRead += bytesRead != -1 ? bytesRead : 0;