Unlike poll(), the pollset interface does not require the selector to copy the entire file descriptor set each time when select() is called.

与poll() 不同，pollset接口并不要求选择器在每次调用 select()时复制整个文件描述符集。

youdao

Unlike poll(), the pollset interface does not require the selector to copy the entire file descriptor set each time when select() is called.

与poll() 不同，pollset接口并不要求选择器在每次调用 select()时复制整个文件描述符集。

youdao