* or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.common.hash;

import static java.lang.Math.min;

import com.google.common.annotations.VisibleForTesting;
import com.google.common.primitives.Longs;
import java.lang.reflect.Field;
import java.nio.ByteOrder;
import java.security.AccessController;

        if (log.isTraceEnabled()) {
            log.trace("update: " + this.updates + " " + offset + ":" + len);
            log.trace(Hexdump.toHexString(input, offset, Math.min(len, 256)));
        }
        if (len == 0) {
            return; /* CRITICAL */
        }
        this.digest.update(input, offset, len);
        this.updates++;
    }

    /**

     * @throws IOException
     */
    @BeforeEach
    void setUp() throws IOException {
        // Create a real URL instead of mocking to avoid protocol issues
        mockUrl = new URL("http://test.example.com/path");

        // Basic setup for mocks to avoid NullPointerExceptions
        when(mockConnection.getURL()).thenReturn(mockUrl);
        when(mockConnection.getRequestProperties()).thenReturn(new HashMap<>());

    private static byte[] buildPacket(byte[] header, byte[] body, Integer ctxOffsetFromHeader, byte[] ctxBytes) {
        int totalLen;
        if (ctxOffsetFromHeader != null && ctxBytes != null) {
            totalLen = Math.max(SMB2_HEADER_LENGTH + body.length, ctxOffsetFromHeader + ctxBytes.length);
        } else {
            totalLen = SMB2_HEADER_LENGTH + body.length;
        }
        byte[] packet = new byte[totalLen];

像为 `Body` 或 `Form` 一样创建文件参数：

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[9] *}

/// info | 信息

`File` 是直接继承自 `Form` 的类。

但要注意，从 `fastapi` 导入的 `Query`、`Path`、`File` 等项，实际上是返回特定类的函数。

///

/// tip | 提示

声明文件体必须使用 `File`，否则，这些参数会被当作查询参数或请求体（JSON）参数。

///

文件将作为「表单数据」上传。

如果把*路径操作函数*参数的类型声明为 `bytes`，**FastAPI** 会为你读取文件，并以 `bytes` 的形式接收其内容。

   * 8`, so the class files from that build can't express nestmates. Thus, when those class files
   * are used from Java 9 or higher (i.e., high enough to trigger the VarHandle code path), such a
   * lookup would fail with an IllegalAccessException. That may then trigger use of Unsafe (possibly
   * with a warning under recent JVMs), or it may fall back even further to

            final byte[] addr = localInetAddress.getAddress();
            localHostname =
                    "JCIFS" + (addr[2] & 0xFF) + "_" + (addr[3] & 0xFF) + "_" + Hexdump.toHexString((int) (Math.random() * 0xFF), 2);
        }

        /*
         * Create an NbtAddress for the local interface with
         * the name deduced above possibly with scope applied and
         * cache it forever.
         */

        if (blockSize == 0)
            blockSize = 16; // GCM mode

        int paddedLength = ((message.length + blockSize - 1) / blockSize) * blockSize;
        byte[] paddedMessage = new byte[Math.max(paddedLength, message.length)];
        System.arraycopy(message, 0, paddedMessage, 0, message.length);

        // Encrypt with constant timing
        byte[] result = cipher.doFinal(paddedMessage, 0, message.length);

                            "Comma-delimited list of specified reactor projects to build instead of all projects. Don't use spaces between commas or double quote the full list. A project can be specified by [groupId]:artifactId or by its relative path. Prefixing a project with ! excludes it, and ? marks it as optional.")
                    .hasArg()
                    .get());
            options.addOption(Option.builder(ALSO_MAKE)

        end
    end

    style V2 fill:#f9fff3
    style V1 fill:#fff6f0
    style V1Field fill:#fff6f0
    style V2Field fill:#f9fff3
```

場合によっては、同じ FastAPI の path operation 内で、Pydantic v1 と v2 の両方のモデルを扱うことも可能です:

{* ../../docs_src/pydantic_v1_in_v2/tutorial003_an_py310.py hl[2:3,6,12,21:22] *}

上の例では、入力モデルは Pydantic v1、出力モデル（`response_model=ItemV2` で定義）は Pydantic v2 です。