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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2006-2012. 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.
//
//////////////////////////////////////////////////////////////////////////////
//[doc_anonymous_semaphoreA
#include <boost/interprocess/shared_memory_object.hpp>
#include <boost/interprocess/mapped_region.hpp>
#include <iostream>
#include "doc_anonymous_semaphore_shared_data.hpp"
//<-
#include "../test/get_process_id_name.hpp"
//->
using namespace boost::interprocess;
int main ()
{
//Remove shared memory on construction and destruction
struct shm_remove
{
shm_remove() { shared_memory_object::remove(test::get_process_id_name()); }
~shm_remove(){ shared_memory_object::remove(test::get_process_id_name()); }
} remover;
//<-
(void)remover;
//->
//Create a shared memory object.
shared_memory_object shm
( create_only //only create
, test::get_process_id_name() //name
, read_write //read-write mode
);
//Set size
shm.truncate(sizeof(shared_memory_buffer));
//Map the whole shared memory in this process
mapped_region region
(shm //What to map
,read_write //Map it as read-write
);
//Get the address of the mapped region
void * addr = region.get_address();
//Construct the shared structure in memory
shared_memory_buffer * data = new (addr) shared_memory_buffer;
const int NumMsg = 100;
//Insert data in the array
for(int i = 0; i < NumMsg; ++i){
data->nempty.wait();
data->mutex.wait();
data->items[i % shared_memory_buffer::NumItems] = i;
data->mutex.post();
data->nstored.post();
}
return 0;
}
//]
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