Dear All,
Thanks for the boost library!
Apparently the boost::flyweight::intermodule_holder on LINUX is creating shared
memory objects, which by accident (crash?) can persist after the process having
created them is already gone.
As a result I ran into the following situation:
I could not successfully run some code, as it attempted to create an already
existing shared memory object created by another user.
Would the following be a solution to this problem:
Use a copy of the code of the static_holder inside another namespace as
attached and compile one module with __INCLUDE_HOLDER__ defined and all the
rest without this define?
Peter
#pragma once
#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
#include <boost/flyweight/static_holder_fwd.hpp>
#include <boost/flyweight/holder_tag.hpp>
#include <boost/mpl/aux_/lambda_support.hpp>
namespace TDA{
namespace flyweights{
template<typename C>
struct static_holder_class:boost::flyweights::holder_marker
{
#ifdef __INCLUDE_HOLDER__
static C& get()
{ static C c;
return c;
}
#else
#error
static C& get();
#endif
typedef static_holder_class type;
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,static_holder_class,(C))
};
/* static_holder_class specifier */
struct static_holder:boost::flyweights::holder_marker
{
template<typename C>
struct apply
{
typedef static_holder_class<C> type;
};
};
} /* namespace flyweights */
} /* namespace boost */
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