Programming

I think some versions of their implementation also drop packets during system memory shortage even after having reported availability with select(). For TCP sockets, I believe there may be a race condition between select() and accept() on some implementations if a half-opened connection is dropped before it can be accepted. But that one may just as well always yield ECONNABORTED, at least on current systems (as indicated by accept )

It is unlikely to encounter these problems so select() + blocking sockets mostly works

Sorry I was fossilled for sometime and couldn't provide more info.
Here is the complete code https://www.unix.com/attachment.php?a...1&d=1271961027

It makes request to a service that takes 2 seconds delay to return response.
While executing in a loop, most of the time the select call takes 0 or 1 second but occasionally takes as much as 98 or 105 seconds.