Uhaw Pa Sa Camel

A few months back, I started using Ultimate++ which is IMHO, a very elegant development framework in C++. One interesting facet of U++ (and one which deserves a more comprehensive treatment treatment than a side note) is its aggressive use of C++, which deviates from the standard. U++ containers, unlike STL ones do not require their contained objects to have a deep copy constructor. That being said, U++ or NTL containers can be magnitudes faster in performance than their STL counterparts by virtue of not having to copy an element every time you insert or append one. The caveat is you have to follow (a few) certain rules, which someone coming from an STL background can forget from time to time. Luckily for noobs like me though, the debugging facilities of U++ are excellent, with the downside of being poorly documented!

I am currently writing a daemon in U++ and I am constantly wondering why my app (built in debug mode) gets terminated from time to time with only a "Received Terminate Signal" in my logs (for some reasons I am using my own logging facility and not syslog). Digging down deeper into my code, I found out that the daemon terminates with this message when it receives either a SIGABRT or a SIGTERM signal. Now the only reason I can suspect is that a debug assertion is failing and the abort(3) funtion of stdlib is sending the SIGABRT. So how to catch that assertion?

Although the forum members of U++ are very friendly and comes to your rescue ASAP, my philosophy in development is if you don't need to ask, don't, and this is how I got by all this time in Symbian and other forums---by just using the search button or its command line brother, grep. Anyway, I wasn't in the mood to dig up forum posts and thought it's easier to grep through U++ code (yeah, you get the U++ source code too, swell huh?). The result? SetAssertFailedHook().

void MyAssertFailedHook_(const char* msg)
{
// Log msg here
}

// ...

SetAssertFailedHook(MyAssertFailedHook_);

That's it. Problem licked!

Oh, btw, the daemon is called sentinel. :D

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