El 28/12/2011 9:30, Prasanth Madhavan escribió:

I want to insert a shared vector into a shared map using the following

code: managed_shared_memory segment(create_only ,"MySharedMemory"

,65536);

typedef allocator<int, managed_shared_memory::segment_manager>

vecAllocator;typedef vector<int, vecAllocator>  vec;typedef

std::pair<int, vec*>  ValueType;typedef allocator<ValueType,

managed_shared_memory::segment_manager>  ShmemAllocator;typedef

multimap<int, vec*, std::less<int>, ShmemAllocator>  MyMap;

ShmemAllocator alloc_inst (segment.get_segment_manager());vecAllocator

vectorallocator (segment.get_segment_manager());

MyMap *mymap = segment.construct<MyMap>("MyMap")(std::less<int>(),alloc_inst);vec

*myvec = segment.construct<vec>("myvec")(vectorallocator);vec *myvec1

= segment.construct<vec>("myvec1")(vectorallocator);

myvec->push_back(10);myvec->push_back(9);myvec->push_back(8);myvec1->push_back(987);myvec1->push_back(123);myvec1->push_back(456);

for(int i = 0; i<  6; ++i){    for(int j = 0; j<6; j++)

mymap->insert(std::pair<int, vec*>(i, myvec));}for(int i = 0; i<  6;

++i){    for(int j = 0; j<6; j++)        mymap->insert(std::pair<int,

vec*>(i, myvec1));}the code works.. but what i want to do is construct

a vector without a name. that is do something like this

vec *myvec = segment.construct<vec>(vectorallocator);vec *myvec1 =

segment.construct<vec>(vectorallocator);so that if i put it inside a

loop and there is no problem with naming them differently every loop.

Is there a way to do so? Or atleast is there an automatic way to name

them differently every loop?

You should use anonymous allocation:


http://www.boost.org/doc/libs/1_48_0/doc/html/interprocess/managed_memory_segments.html#interprocess.managed_memory_segments.managed_memory_segment_features.anonymous

best,

Ion
_______________________________________________
Boost-users mailing list
Boost-users@lists.boost.org
http://lists.boost.org/mailman/listinfo.cgi/boost-users