Re: [Python-Dev] Signal-resistant code (was: Two random and nearly unrelated ideas)

[Jack]

Hmm, and when I think of it I don't think it's even possible to restart safely. What if I do a read() on a socket, and I request more bytes than the available physical memory (but less than VM, of course)? The kernel simply doesn't have anywhere to store the bytes other than my buffer, and if it has to return EINTR then >POOF< these bytes are gone forever.

I think that if any bytes have already been copied into your buffer, you don't get an EINTR, you get a short read. --Guido van Rossum (home page: http://www.python.org/~guido/)