Method call

api/src/context/java/io/grpc/Context.java:547–555

Immediately call a Callable with this context as the #current context. @param c Callable to call. @return result of call.

(Callable<V> c)

   * @return result of call.
   */
  @CanIgnoreReturnValue
  public <V> V call(Callable<V> c) throws Exception {
    Context previous = attach();
    try {
      return c.call();
    } finally {
      detach(previous);
    }
  }

  /**
   * Wrap a {@link Runnable} so that it executes with this context as the {@link #current} context.