[Rd] Ctrl-C of functions that allocated mem

From: oliver <oliver_at_first.in-berlin.de>
Date: Thu, 09 Jun 2011 02:06:27 +0200

Hello,

what happens, when a function (R-extension in C), that allocated memory (strdup(), malloc()/calloc() and so on), and is used in interactive mode, then will be stopped via Ctrl-C?

I would assume that there remains allocated memory, which is not usable and also not accessable (hence no way to free it).

Are there any mechanisms in R that could help in rolling back the allocation?

Normally in an interactive session "some memory" might not be a problem, because it will be run shortly; but I prefer clean solutions. And also, if it's much mem, which is allocated each time, and one does many trials and Ctr-C's, even an interactive session might eat a lot of mem.

So I would be interested in a solution to this (potential) problem.

Ciao,

   Oliver



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