Linux中的IO多路复用

Question

Is there something like the sendfile -syscall that works with multiple target file descriptors (ie instead of copying from one FD to another FD, it could should copy to, say, 4 FDs)?

I know that when talking about asynchronous IO, this is known as gather/scatter, but I could not find anything in the Linux AIO documentation.

Answer 1

I am not aware of anything. I think the closest you are going to get to this is, assuming you are dealing with pipes, is to fashion something out of tee(2) , vmsplice(2) and splice(2) .