From f53347631eb4a5a075589e6fece43aced010a5bb Mon Sep 17 00:00:00 2001 From: Daniel Stenberg Date: Fri, 13 Oct 2006 14:01:19 +0000 Subject: Added comments about checking return code and the maxfd counter --- docs/examples/multi-debugcallback.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'docs/examples/multi-debugcallback.c') diff --git a/docs/examples/multi-debugcallback.c b/docs/examples/multi-debugcallback.c index 286267219..4c93df4dc 100644 --- a/docs/examples/multi-debugcallback.c +++ b/docs/examples/multi-debugcallback.c @@ -153,6 +153,10 @@ int main(int argc, char **argv) /* get file descriptors from the transfers */ curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd); + /* In a real-world program you OF COURSE check the return code of the + function calls, *and* you make sure that maxfd is bigger than -1 + so that the call to select() below makes sense! */ + rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout); switch(rc) { -- cgit v1.2.3