Hunting down EOutOfResources

Question

Question:

Is there an easy way to get a list of types of resources that leak in a running application? IOW by connecting to an application ?

I kno

Answer 1

I am currently having this problem, in software that is clearly not leaking any handles in my own code, so if there are leaks they could be happening in a component's source code or the VCL sourcecode itself.

The handle count and GDI and user object counts are not increasing, nor is anything being created. Deltic's answer shows corner cases where the message is kind of a red-herring, and Allen suggests that even a file write can cause this error.

So far, The best strategy I have found for hunting them down is to use either JCL JCLDEBUG stack tracebacks, or the exception report save features in MadExcept to generate the context information to find out what is actually failing.

Secondly, AQTime contains many tools to help you, including a resource profiler that can keep the links between where the code that created the resources is, and how it was called, along with counts of the total numbers of handles. It can grab results MID RUN and so it is not limited to detecting unfreed resources after you exit. So, run AQTime, do a results capture in mid run, wait several hours, and capture again, and you should have two points in time to compare handle counts. Just in case it is the obvious thing. But as Deltics wisely points out, this exception class is raised in cases where it probably shouldn't have been.