The path from the system processor/memory/OS/App to the HBA contains only the read data block.
在从系统处理器/内存/操作系统/应用程序到HBA 的路径上，只传输读取数据块。
Using a dispatcher queue to execute the code in parallel with the caller and then an OS event to block a public method that waits for the result (assuming a synchronous future pattern).
使用一个dispatcherqueue来并行的执行调用者和被调用的代码，然后一个操作系统事件会阻塞一个等待结果的公共方法假定一个同步未来模式assuming a synchronous future pattern，看不懂，再汗一个-_- ！
Using a dispatcher queue to execute the code in parallel with the caller and then an OS event to block a public method that waits for the result (assuming a synchronous future pattern).
使用一个dispatcherqueue来并行的执行调用者和被调用的代码，然后一个操作系统事件会阻塞一个等待结果的公共方法假定一个同步未来模式assuming a synchronous future pattern，看不懂，再汗一个-_- ！
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