import okhttp3.internal.http2.Header.Companion.TARGET_SCHEME_UTF8
import okhttp3.internal.immutableListOf
import okio.Sink
import okio.Socket
import okio.Source

/** Encode requests and responses using HTTP/2 frames. */
class Http2ExchangeCodec(
  client: OkHttpClient,
  override val carrier: Carrier,
  private val chain: RealInterceptorChain,
  private val http2Connection: Http2Connection,

    public int size() {
        // Context header (16) + name length (4) + padding to 8-byte alignment (4) + data (32)
        return 16 + 4 + 4 + STRUCTURE_SIZE;
    }

    @Override
    public int encode(byte[] dst, int dstIndex) {
        int start = dstIndex;

        // Write context header
        SMBUtil.writeInt4(0, dst, dstIndex); // Next (offset to next context, 0 for last)
        dstIndex += 4;

        System.arraycopy(this.fileId, 0, dst, dstIndex, 16);
        dstIndex += 16;

        SMBUtil.writeInt2(dstIndex - getHeaderStart(), dst, bufferOffsetOffset);
        final int len = this.info.encode(dst, dstIndex);
        SMBUtil.writeInt4(len, dst, bufferLengthOffset);
        dstIndex += len;
        return dstIndex - start;
    }

    /**
     * {@inheritDoc}
     *

	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	// Call site replication hook.
	//
	// We encode the xml bytes as base64 to ensure there are no encoding
	// errors.
	cfgStr := base64.StdEncoding.EncodeToString(configData)
	replLogIf(ctx, globalSiteReplicationSys.BucketMetaHook(ctx, madmin.SRBucketMeta{

		query := url.Values{}
		for key, value := range testCase.queryParams {
			query.Set(key, value)
		}
		// Create a request to use.
		req, err := http.NewRequest(http.MethodGet, "http://host/a/b?"+query.Encode(), nil)
		if err != nil {
			t.Errorf("(%d) failed to create http.Request, got %v", i, err)
		}
		if testCase.expected != ErrNone {
			// Should be set since we are simulating a http server.

        dstIndex += this.dataLength;

        // Write SMB2_RDMA_TRANSFORM if using RDMA channel
        if (rdmaChannelInfo != null && channel == Smb2Constants.SMB2_CHANNEL_RDMA_V1) {
            rdmaChannelInfo.encode(dst, dstIndex);
            dstIndex += 16;
        }

        return dstIndex - start;
    }

    /**
     * {@inheritDoc}
     *

	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	// Call site replication hook.
	//
	// We encode the xml bytes as base64 to ensure there are no encoding
	// errors.
	cfgStr := base64.StdEncoding.EncodeToString(configData)
	replLogIf(ctx, globalSiteReplicationSys.BucketMetaHook(ctx, madmin.SRBucketMeta{

 * includes both natural exceptions such as unreachable servers, as well as synthetic exceptions
 * when responses are of an unexpected type or cannot be decoded.
 *
 * Other exception types cancel the current call:
 *
 *  * For synchronous calls made with [Call.execute], the exception is propagated to the caller.
 *

        this.sessionId = sessionId;
    }

    @Override
    public int size() {
        return TRANSFORM_HEADER_SIZE;
    }

    @Override
    public int encode(final byte[] dst, int dstIndex) {
        final int start = dstIndex;

        // Protocol ID
        SMBUtil.writeInt4(TRANSFORM_PROTOCOL_ID, dst, dstIndex);
        dstIndex += 4;

* `compresslevel` - GZip 압축 중에 사용됩니다. 1에서 9 사이의 정수입니다. 기본값은 `9`입니다. 값이 낮을수록 압축 속도는 빨라지지만 파일 크기는 커지고, 값이 높을수록 압축 속도는 느려지지만 파일 크기는 작아집니다.

## 기타 미들웨어

다른 많은 ASGI 미들웨어가 있습니다.

예를 들어:

<a href=“https://github.com/encode/uvicorn/blob/master/uvicorn/middleware/proxy_headers.py” class=“external-link” target=“_blank”>유비콘의 `ProxyHeadersMiddleware`></a>
<a href=“https://github.com/florimondmanca/msgpack-asgi” class=“external-link” target=“_blank”>MessagePack</a>