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/* -*- c++ -*- */
/*
* Copyright 2007 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef INCLUDED_SPU_GC_JD_QUEUE_H
#define INCLUDED_SPU_GC_JD_QUEUE_H
#include "gc_jd_queue_data.h"
/*
* Declarations for SPU side of job queue interface
*/
__GC_BEGIN_DECLS
/*!
* \brief Remove and return item at head of queue.
*
* \param[in] q is EA address of queue structure.
* \param[out] item_ea is EA address of item at head of queue.
* \param[in] jd_tag is the tag to use to get the LS copy of the item.
* \param[out] item is local store copy of item at head of queue.
* \returns false if the queue is empty, otherwise returns true
* and sets \p item_ea and DMA's job descriptor into \p item
*
* If return is false, we're holding a lock-line reservation that
* covers the queue.
*/
bool
gc_jd_queue_dequeue(gc_eaddr_t q, gc_eaddr_t *item_ea,
int jd_tag, gc_job_desc_t *item);
__GC_END_DECLS
#endif /* INCLUDED_SPU_GC_JD_QUEUE_H */
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