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/*
* Copyright (C) 2011-2014 Karlsruhe Institute of Technology
*
* This file is part of Ufo.
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <ufo/ufo-two-way-queue.h>
#include "compat.h"
struct _UfoTwoWayQueue {
GAsyncQueue *producer_queue;
GAsyncQueue *consumer_queue;
GList *inserted;
guint capacity;
};
/**
* ufo_two_way_queue_new: (skip)
* @init: (element-type gpointer): List with elements inserted into
* consumer queue
*
* Create a new two-way queue and optionally initialize the consumer queue with
* elements from @init.
*
* Returns: A new #UfoTwoWayQueue.
*/
UfoTwoWayQueue *
ufo_two_way_queue_new (GList *init)
{
GList *it;
UfoTwoWayQueue *queue = g_new0 (UfoTwoWayQueue, 1);
queue->producer_queue = g_async_queue_new ();
queue->consumer_queue = g_async_queue_new ();
queue->inserted = NULL;
queue->capacity = 0;
g_list_for (init, it) {
ufo_two_way_queue_insert (queue, it->data);
}
return queue;
}
void
ufo_two_way_queue_free (UfoTwoWayQueue *queue)
{
g_async_queue_unref (queue->producer_queue);
g_async_queue_unref (queue->consumer_queue);
g_list_free (queue->inserted);
g_free (queue);
}
/**
* ufo_two_way_queue_consumer_pop:
* @queue: A #UfoTwoWayQueue
*
* Fetch an item for consumption.
*
* Returns: (transfer none): A consumable item.
*/
gpointer
ufo_two_way_queue_consumer_pop (UfoTwoWayQueue *queue)
{
return g_async_queue_pop (queue->consumer_queue);
}
void
ufo_two_way_queue_consumer_push (UfoTwoWayQueue *queue, gpointer data)
{
g_async_queue_push (queue->producer_queue, data);
}
/**
* ufo_two_way_queue_producer_pop:
* @queue: A #UfoTwoWayQueue
*
* Fetch an item for production.
*
* Returns: (transfer none): A producable item.
*/
gpointer
ufo_two_way_queue_producer_pop (UfoTwoWayQueue *queue)
{
return g_async_queue_pop (queue->producer_queue);
}
void
ufo_two_way_queue_producer_push (UfoTwoWayQueue *queue, gpointer data)
{
g_async_queue_push (queue->consumer_queue, data);
}
/**
* ufo_two_way_queue_get_inserted: (skip)
* @queue: A #UfoTwoWayQueue
*
* Fetch all items ever inserted.
*
* Returns: (element-type gpointer) (transfer none): A list with all items.
*/
GList *
ufo_two_way_queue_get_inserted (UfoTwoWayQueue *queue)
{
return queue->inserted;
}
void
ufo_two_way_queue_insert (UfoTwoWayQueue *queue, gpointer data)
{
g_async_queue_push (queue->producer_queue, data);
queue->inserted = g_list_append (queue->inserted, data);
queue->capacity++;
}
guint
ufo_two_way_queue_get_capacity (UfoTwoWayQueue *queue)
{
return queue->capacity;
}
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