Re: [Boost-users] boost::interprocess::string

Subject: Re: [Boost-users] boost::interprocess::string
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2011-12-29 04:40:18

El 28/12/2011 10:28, Josmon Paul escribió:
> Hi All
> Is there any way to increase the size of boost::interprocess::string
> greater than 10. In my code currently i am using a vector to store the
> object and dumbing this vector into shared shared memory. The object
> inturn contain various field and it has string type of data with it.
> Currently i am defining the string as as "boost::interprocess::string
> "and setting to the object field. But when i am fetching it is giving
> segmentation fault for string size more than 10 due to the limitation of
> boost::interprocess string . Is there any other type of string which can
> be replaced with boost::interprocess::string. I cant use basic_string
> because i think it is suited if we are adding only string type of data
> to the vector list (i am guessing) .

You must use a shared  memory allocator with a string. Until 10, string 
uses an internal buffer, but then it must allocate dynamic memory and 
you need to configure it like a shared memory container. You have some 
examples in the documentation, you can see how to construct a vector of 
strings in the example here:

http://www.boost.org/doc/libs/1_48_0/doc/html/interprocess/allocators_containers.html#interprocess.allocators_containers.containers_explained.where_allocate

Best,

Ion