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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_conditionA

#include <boost/interprocess/shared_memory_object.hpp>

#include <boost/interprocess/mapped_region.hpp>

#include <boost/interprocess/sync/scoped_lock.hpp>

#include <iostream>

#include <cstdio>

#include "doc_anonymous_condition_shared_data.hpp"

//<-

#include "../test/get_process_id_name.hpp"

//->

using namespace boost::interprocess;

int main ()

{

//Erase previous shared memory and schedule erasure on exit

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

);

BOOST_INTERPROCESS_TRY{

//Set size

shm.truncate(sizeof(trace_queue));

//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

trace_queue * data = new (addr) trace_queue;

const int NumMsg = 100;

for(int i = 0; i < NumMsg; ++i){

scoped_lock<interprocess_mutex> lock(data->mutex);

if(data->message_in){

data->cond_full.wait(lock);

}

if(i == (NumMsg-1))

std::sprintf(data->items, "%s", "last message");

else

std::sprintf(data->items, "%s_%d", "my_trace", i);

//Notify to the other process that there is a message

data->cond_empty.notify_one();

//Mark message buffer as full

data->message_in = true;

}

BOOST_INTERPROCESS_CATCH(interprocess_exception &ex){

std::cout << ex.what() << std::endl;

return 1;

}

BOOST_INTERPROCESS_CATCH_END

return 0;

}

//]

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