Listing 2 shows one way to register a signal handler.

清单2给出了一种注册信号处理程序的方法。

youdao

Suppose that the signal handler USES gethostbyname, which is non-reentrant.

假定信号处理器使用了不可重入的gethostbyname。

youdao

There can be only one signal handler per signal per process active at any instant.

在任何瞬间，只能有一个信号处理程序处理一个活动进程的一个信号。

youdao

Wherever I went, I needed a constant handler and guide, and the spotty wireless signal often left me stranded the video window on my laptop in Texas frozen as the Robot Rachel in New York went dead.

WSJ: My Life as a Telecommuting Robot

Or has the dog simply learned that the best way to please his handler, and perhaps earn a treat, is to signal the presence of drugs?

FORBES: Man's Best Friend Is No Friend to the Fourth Amendment