Rebecca Morelle,
WHAT THIS DOESN'T COVER:
。关于这个话题，WPS下载最新地址提供了深入分析
And… that's it! At this point, recv, recvmsg, and similar syscalls can be used to obtain data. The example code above performs some extra work to dynamically resize buffers and to receive Unix credentials, but we can ignore all of that for now.
When disaster strikes on a flight these days, it’s almost never the way we fear. The wings won’t rip off in a gale. The plane won’t get thrown into a mountain. In the seven decades since the first paying passengers flew on a commercial jet airliner—from London to Johannesburg in 1952—the number of commercial flights has increased exponentially, while the risk of dying on one has grown incredibly small. “It works out to a probability of fatal injury of one in forty-six million flights on U.S. and E.U. airplanes,” Jacob Zeiger, the air-safety investigator at Boeing, told me. When an accident does happen, it’s usually because of human error or a ground collision or some combination of factors, including the simple act of walking around on a bumpy flight.