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

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:

 using namespace boost::interprocess;  using ShmSegment_t = boost::interprocess::managed_shared_memory;  using SegmentMgr_t = boost::interprocess::managed_shared_memory::segment_manager;  template <typename T>  using Allocator_t = boost::interprocess::allocator;

 using String_t = boost::interprocess::basic_string;

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