The is_dumping global variable is used to stop other threads from changing the contents of the buffer once a signal has been received to dump data.

一旦接收到了转储数据的信号，将使用 is_dumping 全局变量禁止其他的线程更改该缓冲区的内容。

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You could throw in several if statements for early exit and to stop the buffer refill process when you are out of data.

可以使用几个if语句提前退出，以及在处理完数据时停止缓冲区重新填充过程。

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The New York governor, Andrew Cuomo, said the train was travelling at a "fairly slow speed" when it failed to stop on time and struck a buffer at the station.

据纽约州长安德鲁·科莫表示说，当时列车正以一个“非常慢的速度”行驶，但是却没能准时停下来、撞上了站台里的一个缓冲区。

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