[英]How to close a non blocking socket channel properly?
I'm writing a server program using Java non-blocking SocketChannel. 我正在使用Java非阻塞SocketChannel编写服务器程序。 Sometimes I want to send a reply message and then close the channel, like the following code.
有时我想发送回复消息,然后关闭频道,例如以下代码。
However, the close() method interrupts the write() method, I get a java.nio.channels.ClosedChannelException and the message is not sent. 但是,close()方法中断了write()方法,我得到了一个java.nio.channels.ClosedChannelException并且消息没有发送。
I can pop a thread and wait for 1-2 seconds before closing the channel, but I feel it's so wasteful to making another thread. 我可以弹出一个线程并等待1-2秒,然后再关闭频道,但是我觉得创建另一个线程非常浪费。
What is the proper way to close a SocketChannel while there are pending operations? 有未决操作时关闭SocketChannel的正确方法是什么?
String msg = "Wrong password!";
channel.write(ByteBuffer.wrap(msg.getBytes()));
channel.close();
channel. 渠道。 socket ().
套接字 ()。 setSoLinger (true, MAX_SECONDS_FOR_OUTPUT_TO_DRAIN);
setSoLinger (true,MAX_SECONDS_FOR_OUTPUT_TO_DRAIN);
See info on the linger option . 请参阅有关linger选项的信息 。 As mentioned, it will cause close() to block for up to MAX_SECONDS_FOR_OUTPUT_TO_DRAIN seconds.
如前所述,它将导致close()阻塞最多MAX_SECONDS_FOR_OUTPUT_TO_DRAIN秒。
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