boost::interprocess on FreeBSD 7

17 Dec 2008

      Using boost::interprocess from boost_1_37_0 on FreeBSD 7.0,

I get a segmentation fault in pthread_mutex_lock() from /lib/libthr.so. 
3, in what appears to anything related to a ShmemAllocator.

For example, when I run the example from http://www.boost.org/doc/libs/1_37_0/doc/html/interprocess/allocators_contai...

I get the segfault at this line:

//Initialize the STL-like allocator
const ShmemAllocator alloc_inst (segment.get_segment_manager());

I stepped back to this simple test after encountering this segfault  
(always in pthread_mutex_lock) when trying to use almost any function  
of segment_manager from managed_mapped_file. This is from an mapped  
file boost::interprocess::map structure that works very well on darwin.

Is there any hope to getting this to work on FreeBSD?

-----------------------------------------------------------------------------------------------
FWIW, here is the complete text of the example:

void test_ipc2()
{
	using namespace boost::interprocess;
	shared_memory_object::remove("MySharedMemory");
	try{
		//A managed shared memory where we can construct objects
		//associated with a c-string
		managed_shared_memory segment(create_only,
									  "MySharedMemory",  //segment name
									  65536);

		//Alias an STL-like allocator of ints that allocates ints from the  
segment
		typedef allocator<int, managed_shared_memory::segment_manager>
		ShmemAllocator;

		//Alias a vector that uses the previous STL-like allocator
		typedef vector<int, ShmemAllocator> MyVector;

		int initVal[]        = {0, 1, 2, 3, 4, 5, 6 };
		const int *begVal    = initVal;
		const int *endVal    = initVal + sizeof(initVal)/sizeof(initVal[0]);

		//Initialize the STL-like allocator
		const ShmemAllocator alloc_inst (segment.get_segment_manager());

		//Construct the vector in the shared memory segment with the STL- 
like allocator
		//from a range of iterators
		MyVector *myvector =
		segment.construct<MyVector>
		("MyVector")/*object name*/
		(begVal     /*first ctor parameter*/,
		 endVal     /*second ctor parameter*/,
		 alloc_inst /*third ctor parameter*/);

		BOOST_CHECK(myvector);
		//Use vector as your want
		std::sort(myvector->rbegin(), myvector->rend());
		// . . .
		//When done, destroy and delete vector from the segment
		segment.destroy<MyVector>("MyVector");
	}
	catch(...){
		shared_memory_object::remove("MySharedMemory");
		throw;
	}
	shared_memory_object::remove("MySharedMemory");
}

Andy Wiese

Ion Gaztañaga

Andy Wiese

Ion Gaztañaga

Andy Wiese

Ion Gaztañaga

Andy Wiese

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