if (contentLength == 0L) {
        complete(null)
      }
    }

    @Throws(IOException::class)
    override fun read(
      sink: Buffer,
      byteCount: Long,
    ): Long {
      check(!closed) { "closed" }
      try {
        val read = delegate.read(sink, byteCount)

        if (invokeStartEvent) {
          invokeStartEvent = false
          eventListener.responseBodyStart(call)
        }

     * reader lock and return the new bytes.
     *
     * ## The file
     *
     * In this case we copy bytes from the file to the [sink].
     *
     * ## The buffer
     *
     * In this case the bytes are immediately copied into [sink] and the number of bytes copied is
     * returned.
     *
     * If upstream would be selected but another thread is already reading upstream this will

    randomAccessFile!!.getChannel().force(false)
    val source = file!!.source().buffer()
    return source.readByteString()
  }

  private fun write(data: ByteString) {
    val sink = file!!.sink().buffer()
    sink.write(data)
    sink.close()
  }

      }

      override fun writeTo(sink: BufferedSink) {
        sink.writeUtf8("<el")
        sink.flush()
        throw IOException("failed to stream the XML")
      }
    }

    class ValidRequestBody : RequestBody() {
      override fun contentType(): MediaType {
        return "application/xml".toMediaType()
      }

      override fun writeTo(sink: BufferedSink) {
        sink.writeUtf8("<element/>")

    return object : ForwardingSource(source) {
      @Throws(IOException::class)
      override fun read(
        sink: Buffer,
        byteCount: Long,
      ): Long {
        val buffer = Buffer()
        val read = delegate.read(buffer, byteCount)
        if (read != -1L) {
          sink.write(buffer.readByteString().toAsciiUppercase())
        }
        return read
      }
    }
  }

  
  Please use the following format for linking documentation:
  - [KEP]: <link>
  - [Usage]: <link>
  - [Other doc]: <link>

    val stream = connection.newStream(headerEntries("b", "banana"), true)
    val sink = stream.getSink()
    sink.write(Buffer().writeUtf8("abcde"), 5)
    stream.writeTimeout().timeout(500, TimeUnit.MILLISECONDS)
    val startNanos = System.nanoTime()
    sink.write(Buffer().writeUtf8("f"), 1)
    assertFailsWith<InterruptedIOException> {
      sink.flush() // This will time out waiting on the write window.
    }

    server.listener.assertClosing(1000, "Bye!")
    server.webSocket!!.finishReader()
    server.listener.assertClosed(1000, "Bye!")
  }

  @Test
  fun emptyCloseInitiatesShutdown() {
    server.sink.write("8800".decodeHex()).emit() // Close without code.
    client.processNextFrame()
    client.listener.assertClosing(1005, "")
    client.webSocket!!.finishReader()

        return "text/plain".toMediaTypeOrNull()
      }

      @Throws(IOException::class)
      override fun writeTo(sink: BufferedSink) {
        try {
          sink.writeUtf8("abc")
          sink.flush()
          Thread.sleep(sleepMillis.toLong())
          sink.writeUtf8("def")
        } catch (e: InterruptedException) {
          throw InterruptedIOException()
        }
      }
    }
  }

        private var cacheRequestClosed = false

        @Throws(IOException::class)
        override fun read(
          sink: Buffer,
          byteCount: Long,
        ): Long {
          val bytesRead: Long
          try {
            bytesRead = source.read(sink, byteCount)
          } catch (e: IOException) {
            if (!cacheRequestClosed) {
              cacheRequestClosed = true