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Full merge from trunk at revision 41356 of entire boost-root tree.

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[SVN r41369]
This commit is contained in:
Beman Dawes
2007-11-25 18:07:19 +00:00
parent fec5f75606
commit 28bf848aaa
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example/doc_private_node_allocator.cpp
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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2006-2007. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/interprocess for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#include <boost/interprocess/detail/config_begin.hpp>
#include <boost/interprocess/detail/workaround.hpp>
//[doc_private_node_allocator
#include <boost/interprocess/managed_shared_memory.hpp>
#include <boost/interprocess/allocators/private_node_allocator.hpp>
#include <cassert>
using namespace boost::interprocess;
int main ()
{
shared_memory_object::remove("MySharedMemory");
try{
//Create shared memory
managed_shared_memory segment(create_only,
"MySharedMemory", //segment name
65536);
//Create a private_node_allocator that allocates ints from the managed segment
//The number of chunks per segment is the default value
typedef private_node_allocator<int, managed_shared_memory::segment_manager>
private_node_allocator_t;
private_node_allocator_t allocator_instance(segment.get_segment_manager());
//Create another private_node_allocator.
private_node_allocator_t allocator_instance2(segment.get_segment_manager());
//Although the segment manager address
//is the same, this private_node_allocator will have its own pool so
//"allocator_instance2" CAN'T deallocate nodes allocated by "allocator_instance".
//"allocator_instance2" is NOT equal to "allocator_instance"
assert(allocator_instance != allocator_instance2);
//Create another node_allocator using copy-constructor.
private_node_allocator_t allocator_instance3(allocator_instance2);
//This allocator is also unequal to allocator_instance2
assert(allocator_instance2 != allocator_instance3);
//Pools are destroyed with the allocators
}
catch(...){
shared_memory_object::remove("MySharedMemory");
throw;
}
shared_memory_object::remove("MySharedMemory");
return 0;
}
//]
#include <boost/interprocess/detail/config_end.hpp>