{

//Create a shared memory object.

shared_memory_object shm

(open_only //only create

, test::get_process_id_name() //name

,read_write //read-write mode

);

BOOST_INTERPROCESS_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);