Re: [Boost-users] Using boost interprocess features from inside Class member functions

Subject: Re: [Boost-users] Using boost interprocess features from inside Class member functions
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2012-05-06 06:33:27

El 04/05/2012 23:47, Achuth Sankar escribió:
> Hi All
>
>       Am facing a lot of issue while using interprocess features inside
> my class file. I am pasting my class file below:

when "mapped_region" is destroyed, then the shared memory is unmapped 
and you have no acces to it. Make mapped_region a member of your class.

void MyClass::createBuffer() {
      shared_memory_object::remove("test");
      shared_memory_object shm(open_or_create, infoBufferName, read_write);
      shm.truncate(sizeof(ServerDetails));
      mapped_region region(shm, read_write);
      void* addr = region.get_address();
      ref=new (addr) Ref;
      ref->value=50;
      //Assign the recently created mapped region to the internal member
      m_member_mapped_region = boost::move(region);
}

best,

Ion