atomic.AddUint64(&totalBytesWritten, uint64(info.Size))
				objCountPerThread[i]++
				mu.Lock()
				uploadTimes = append(uploadTimes, response)
				mu.Unlock()
			}
		}(i)
	}
	wg.Wait()

	// We already saw write failures, no need to proceed into read's
	if retError != "" {
		return SpeedTestResult{
			Uploads:     totalBytesWritten,
			Downloads:   totalBytesRead,
			UploadTimes: uploadTimes,

        lock = new Object();
    }
    public int read() throws IOException {
        int result = -1;

        synchronized( lock ) {
            try {
                while( used == 0 ) {
                    lock.wait();
                }
            } catch( InterruptedException ie ) {
                throw new IOException( ie.getMessage() );
            }
            result = pipe_buf[beg_idx] & 0xFF;

```

/// note | "技术细节"

您也可以使用 `from starlette.websockets import WebSocket`。

**FastAPI** 直接提供了相同的 `WebSocket`，只是为了方便开发人员。但它直接来自 Starlette。

///

## 等待消息并发送消息

在您的 WebSocket 路由中，您可以使用 `await` 等待消息并发送消息。

```Python hl_lines="48-52"
{!../../docs_src/websockets/tutorial001.py!}
```

您可以接收和发送二进制、文本和 JSON 数据。

## 尝试一下

如果您的文件名为 `main.py`，请使用以下命令运行应用程序：

```console

				return err
			}
		}

		header, err := tarReader.Next()
		switch {

		// if no more files are found return
		case err == io.EOF:
			wg.Wait()
			return asyncErr

		// return any other error
		case err != nil:
			wg.Wait()
			extra := ""
			if n > 0 {
				extra = fmt.Sprintf(" after %d successful object(s)", n)
			}
			return fmt.Errorf("tar file error: %w%s", err, extra)

	cancel := func() {
		cl()
		wg.Done()
	}

	if !dm.GetLock(ctx, cancel, id, source, Options{Timeout: 5 * time.Minute}) {
		t.Fatal("GetLock() should be successful")
	}

	// Wait until context is canceled
	wg.Wait()
	if ctx.Err() == nil {
		t.Fatal("Unexpected error", ctx.Err())
	}

	// Should be safe operation in all cases
	dm.Unlock(context.Background())
}

// Test Unlock should not timeout

	for i := 0; i < numReaders; i++ {
		go parallelReader(context.Background(), m, clocked, cunlock, cdone)
	}
	// Wait for all parallel RLock()s to succeed.
	for i := 0; i < numReaders; i++ {
		<-clocked
	}
	for i := 0; i < numReaders; i++ {
		cunlock <- true
	}
	// Wait for the goroutines to finish.
	for i := 0; i < numReaders; i++ {
		<-cdone
	}
}

// Borrowed from rwmutex_test.go

    ```
    git commit -am "Prepare for release $RELEASE_VERSION."
    git tag -a parent-$RELEASE_VERSION -m "Version $RELEASE_VERSION"
    git push && git push --tags
    ```

5. Wait for [GitHub Actions][github_actions] to start the publish job.

6. Prepare for ongoing development and push to GitHub.

    ```
    sed -i "" \
      "s/version = \".*\"/version = \"$NEXT_VERSION\"/g" \

   */
  void awaitRunning();

  /**
   * Waits for the {@link Service} to reach the {@linkplain State#RUNNING running state} for no more
   * than the given time.
   *
   * @param timeout the maximum time to wait
   * @throws TimeoutException if the service has not reached the given state within the deadline
   * @throws IllegalStateException if the service reaches a state from which it is not possible to

                  allExceptions.add(e)
                }
                latch.countDown()
              }
            },
          )
        }

        latch.await()

        // No mutations should be possible after this point
        if (allAddresses.isEmpty()) {
          val first = allExceptions.firstOrNull() ?: UnknownHostException("No results for $hostname")

    val dispatcher: Dispatcher =
      object : Dispatcher() {
        override fun dispatch(request: RecordedRequest): MockResponse {
          if (request.path == firstRequest) {
            latch.await()
          }
          return MockResponse()
        }
      }
    mockWebServer.dispatcher = dispatcher
    val startsFirst = buildRequestThread(firstRequest, firstResponseCode)
    startsFirst.start()