hi. the scenario is use cxxfunction to create a module, load it, use it
minimally, then *re*-load the module (by mistake -- well, actually,
after a failed compile of modified code), attempt to use it. the result
is
----
*** caught segfault ***
address 0xd8, cause 'memory not mapped'
Traceback:
1: .Call(symbol)
2: Module(module, mustStart = TRUE)
3: .getModulePointer(x)
4: cl$cluslist
----
here's the R/C++ code:
----
# the following crashes R with a segfault in Module.
require(Rcpp)
require(inline)
inc <- '
class cluslist {
public:
int values;
};
using namespace Rcpp;
RCPP_MODULE(cluslist_module) {
class_<cluslist>("cluslist")
.field("values", &cluslist::values)
;
}
// [[Rcpp::export]]
void foo() {}
'
clm <- cxxfunction(,plugin="Rcpp", include=inc)
cl <- Module("cluslist_module", getDynLib(clm))
cluslist <- cl$cluslist
cl<- new(cluslist)
cl <- Module("cluslist_module", getDynLib(clm))
cluslist <- cl$cluslist
----
cheers.
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