Ian> Well, once select() returns and i see a bit set in my reads[], how
Ian> do I know it's an ares socket as opposed to mine (and I have
Ian> multiple knids of mine)?
Daniel> You'd just have to assume that if it isn't your file descriptor
Daniel> then it belongs to c-ares. You know what descriptors that are
Daniel> yours, right?
Daniel> Or else, you call ares_fdset() and check what bits it set and
Daniel> remember that those bits are for c-ares. Or similar.
ares_fdset? Do you mean ares_fds?
That won't do it. ares_getsock would, but it does mean getting the CVS;
oh well, I guess I have to do that anyway to contribute the DNS packet
code, but I'll have to convince the superiors it's safe. Or should I
wait for the next release?
You see, the natural algorithm in this situation is _not_ to go through
all bits in reads[] and test each; that's too wasteful of time. The
natural way is to know the descriptors you have open, and test those
bits only.
-- Ian Zimmerman, Software Engineer BorderWare Technologies, Inc. Mississauga, Ontario, CanadaReceived on Mon Jan 9 16:55:16 2006