Re: [Boost-users] boost managed shared memory: RUN FAILED

3 Dec 2012

      Hello,

I send to you the program. I take it from an example on the boost site :

#include 
#include 
#include 
#include <string>
#include <cstdlib> //std::system

using namespace boost::interprocess;

//Define an STL compatible allocator of ints that allocates from the
managed_shared_memory.
//This allocator will allow placing containers in the segment
typedef allocator
ShmemAllocator;

//Alias a vector that uses the previous STL-like allocator so that allocates
//its values from the segment
typedef vector MyVector;

//Main function. For parent process argc == 1, for child process argc == 2
int main(int argc, char *argv[])
{
   if(argc == 1){ //Parent process
      //Remove shared memory on construction and destruction
      struct shm_remove
      {
         shm_remove() { shared_memory_object::remove("MySharedMemory"); }
         ~shm_remove(){ shared_memory_object::remove("MySharedMemory"); }
      } remover;

      //Create a new segment with given name and size
      managed_shared_memory segment(create_only, "MySharedMemory", 65536);

      //Initialize shared memory STL-compatible allocator
      const ShmemAllocator alloc_inst (segment.get_segment_manager());

      //Construct a vector named "MyVector" in shared memory with argument
alloc_inst
      *MyVector *myvector =
segment.construct<MyVector>("MyVector")(alloc_inst);*
 *   ;*

   }
   else{
       // some code  here
   }

   return 0;
};

The program can not run this instruction: *MyVector *myvector =
segment.construct<MyVector>("MyVector")(alloc_inst);

*I am using Netbeans 7.1.2 with cygwin 4.x on windows XP SP3 and boost
1.48.

When I run it in external terminal I got this error:
*/cygdrive/C/Program Files/NetBeans 7.1.2/ide/bin/nativeexecution/dorun.sh:
line
33: 12900 Segmentation fault      (core dumped) sh "${SHFILE}"

*When I debug it I got this :
Signal received SIGSEGV(segmentation fault)

Thank you and any suggestion is welcome.*
*Austina*

*
2012/12/3 Joshua Boyce 
...
On Fri, Nov 30, 2012 at 10:00 PM, Olivier Austina <
olivier.austina@gmail.com> wrote:
...
Hello,
This is the details of the error I got (with Netbeans) :
12 [main] cppapplication_4 3608 exception::handle: Exception:
STATUS_ACCESS_VIOLATION
    371 [main] cppapplication_4 3608 open_stackdumpfile: Dumping stack
trace to cppapplication_4.exe.stackdump
RUN FAILED (exit value 35 584, total time: 2s)
Many thanks
2012/11/30 Olivier Austina 
...
Hello,
I try to run an example from this online book(
http://en.highscore.de/cpp/boost/interprocesscommunication.html) and I
got "RUN FAILED (exit value 1, total time: 938ms) ". I am using Netbeans.
This is the example:
#include 
#include <iostream>
int main()
{
  boost::interprocess::shared_memory_object::remove("Highscore");
  boost::interprocess::managed_shared_memory managed_shm(boost::interprocess::open_or_create, "Highscore", 1024);
  int *i = managed_shm.construct<int>("Integer")(99);
  std::cout << *i << std::endl;
  std::pair p = managed_shm.find<int>("Integer");
  if (p.first)
    std::cout << *p.first << std::endl;
}
Thanks very much.
--
Regards
Austina
--
Regards
Austina
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You may have more luck getting an answer if you post the generated stack
dump (cppapplication_4.exe.stackdump).
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-- 
Regards
Austina