queue.h

/*
 * Copyright (C) 2011 Philippe Gerum <rpm@xenomai.org>.
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
 
#ifndef _ALCHEMY_QUEUE_H
#define _ALCHEMY_QUEUE_H
 
#include <boilerplate/list.h>
#include <copperplate/syncobj.h>
#include <copperplate/registry.h>
#include <copperplate/cluster.h>
#include <copperplate/heapobj.h>
#include <alchemy/queue.h>
 
struct alchemy_queue {
        unsigned int magic;     /* Must be first. */
        char name[XNOBJECT_NAME_LEN];
        int mode;
        size_t limit;
        struct heapobj hobj;
        struct syncobj sobj;
        struct clusterobj cobj;
        struct listobj mq;
        unsigned int mcount;
        struct fsobj fsobj;
};
 
#define queue_magic     0x8787ebeb
 
struct alchemy_queue_msg {
        size_t size;
        unsigned int refcount;
        struct holder next;
        /* Payload data follows. */
};
 
struct alchemy_queue_wait {
        dref_type(struct alchemy_queue_msg *) msg;
        void *local_buf;
        size_t local_bufsz;
};
 
extern struct syncluster alchemy_queue_table;
 
#endif /* _ALCHEMY_QUEUE_H */