Re: [Boost-users] [boost.interprocess] Construct boost::basic_string with managed_shared_memory as memory soure crash.

Subject: Re: [Boost-users] [boost.interprocess] Construct boost::basic_string with managed_shared_memory as memory soure crash.
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2018-08-03 23:34:51

On 02/08/2018 11:31, Zhiming Wang via Boost-users wrote:
> Hi,
> 
> I am using boost 1.65.1 interprocess lib, and tried to construct a 
> string that is safe to store in a managed_shared_memory.
> 
> Types  are defined as below:
> 
>  Â using namespace boost::interprocess;
>  Â using ShmSegment_t = boost::interprocess::managed_shared_memory;
>  Â using SegmentMgr_t = 
> boost::interprocess::managed_shared_memory::segment_manager;
>  Â template <typename T>
>  Â using Allocator_t = boost::interprocess::allocator<T, SegmentMgr_t>;
> 
>  Â using String_t = boost::interprocess::basic_string<char, 
> std::char_traits<char>, Allocator_t<char>>;
> 
> Code in problem is as below:
> 
> using namespace boost::interprocess;
> ShmSegment_t segment(open_or_create, "Test",  1L << 31);
> const std::string stdStr("std_str");
> String_t ipcStr( stdStr.c_str(), segment.get_segment_manager()); *// 
> oops, crashed! *

Are you are reserving 2GB of memory? Do you have enough memory in your 
system? Linux overcommits by default.

Best,

Ion