使用管道，tee（）和splice（）将数据发送到多个套接字

I'm duplicating a "master" pipe with tee() to write to multiple sockets using splice(). Naturally these pipes will get emptied at different rates depending on how much I can splice() to the destination sockets. So when I next go to add data to the "master" pipe and then tee() it again, I may have a situation where I can write 64KB to the pipe but only tee 4KB to one of the "slave" pipes. I'm guessing then that if I splice() all of the "master" pipe to the socket, I will never be able to tee() the remaining 60KB to that slave pipe. Is that true? I guess I can keep track of a tee_offset (starting at 0) which I set to the start of the "unteed" data and then don't splice() past it. So in this case I would set tee_offset to 4096 and not splice more than that until I'm able to tee it to all to the other pipes. Am I on the right track here? Any tips/warnings for me?I'm duplicating a "master" pipe with tee() to w