I am a new user and try to write some codes with shared memory using
boost.interprocess.
Basically, I followed the examples and the allocation seems fine. But
the use of shared-memory container gave me a bunch of error messages
related to
"instantiated from here." during compile. The error seems related to
the template.
But I have no idea how to fix it yet. Any suggestion would be helpful.
Thanks.
Po-Chun
My code:
struct LongIntLess
{
bool operator()(const uint64_t a, const uint64_t b)
{
return a < b;
}
};
main () {
using namespace boost::interprocess;
try{
shared_memory_object::remove("SharedMemory");
managed_shared_memory segment (create_only, "SharedMemory", sizeof
(uint64_t)*200);
typedef allocator< uint64_t,
managed_shared_memory::segment_manager>
shmAllocator_t;
typedef set shrSet_t;
const shmAllocator_t alloc_inst (segment.get_segment_manager());
shrSet_t *WrSet_1;
WrSet_1 = segment.construct ("shrSet_t") ("LongIntLess",
alloc_inst); // <= not sure about this
//
Is it right way to construct a set ?
WrSet_1->insert(2); // <====== This line causes the error
} catch (...){
shared_memory_object::remove("SharedMemory");
throw();
}
shared_memory_object::remove("SharedMemory");
}
The error messages are from these files:
boost/interprocess/containers/
detail/tree.hpp:
boost/intrusive/detail/tree_algorithms.hpp
boost/intrusive/rbtree.hpp
boost/interprocess/containers/detail/tree.hpp
boost/interprocess/containers/set.hpp
One of the error messges is like:
tree.hpp:331: instantiated from 'bool
boost::interprocess::detail::rbtree::key_node_compare<KeyValueCompare>::operator()(const
KeyType&, const typename
boost::interprocess::detail::node_alloc_holder >::type>::Node&) const [with KeyType = long
unsigned int, KeyValueCompare =
boost::interprocess::detail::value_compare_impl,
boost::interprocess::iset_index> >,
boost::interprocess::detail::identity<long unsigned int> >, Key = long
unsigned int, Value = long unsigned int, KeyOfValue =
boost::interprocess::detail::identity<long unsigned int>, KeyCompare =
boost::interprocess::allocator,
boost::interprocess::iset_index> >, A = std::allocator<long unsigned
int>]'
