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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.

//////////////////////////////////////////////////////////////////////////////

#include <boost/interprocess/detail/config_begin.hpp>

//[doc_anonymous_conditionB

#include <boost/interprocess/shared_memory_object.hpp>

#include <boost/interprocess/mapped_region.hpp>

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

#include <iostream>

#include <cstring>

#include "doc_anonymous_condition_shared_data.hpp"

using namespace boost::interprocess;

int main ()

{

//Create a shared memory object.

shared_memory_object shm

(open_only //only create

,"MySharedMemory" //name

,read_write //read-write mode

);

try{

//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();

//Obtain a pointer to the shared structure

trace_queue * data = static_cast<trace_queue*>(addr);

//Print messages until the other process marks the end

bool end_loop = false;

do{

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

if(!data->message_in){

data->cond_empty.wait(lock);

}

if(std::strcmp(data->items, "last message") == 0){

end_loop = true;

}

else{

//Print the message

std::cout << data->items << std::endl;

//Notify the other process that the buffer is empty

data->message_in = false;

data->cond_full.notify_one();

}

while(!end_loop);

}

catch(interprocess_exception &ex){

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

return 1;

}

return 0;

}

//]

#include <boost/interprocess/detail/config_end.hpp>

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