Hello, I wrote a system to perform data analysis in C++. Now I am integrating it to R. I need to allocate memory for my own C++ data structures, which can't be represented by any R data structures. I create a global hashtable to keep a reference to the C++ data structures. Whenever I allocate one, I register it in the hashtable and return its key to the R code. So later on, the R code can access the C++ data structures with their keys.
The problem is how to perform garbage collection on the C++ data structures. Once an R object that contains the key is garbage collected, the R code can no longer access the corresponding C++ data structure, so I need to deallocate it. Is there any way that the C++ code can get notification when an R object gets garbage collected? If not, what is the usual way to manage memory in R extensions? Thanks, Da ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
