source: trunk/sys/libphoenix/taskQ.h @ 1

Last change on this file since 1 was 1, checked in by alain, 5 years ago

First import

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1/* Copyright (c) 2007-2009, Stanford University
2* All rights reserved.
3*
4* Redistribution and use in source and binary forms, with or without
5* modification, are permitted provided that the following conditions are met:
6*     * Redistributions of source code must retain the above copyright
7*       notice, this list of conditions and the following disclaimer.
8*     * Redistributions in binary form must reproduce the above copyright
9*       notice, this list of conditions and the following disclaimer in the
10*       documentation and/or other materials provided with the distribution.
11*     * Neither the name of Stanford University nor the names of its
12*       contributors may be used to endorse or promote products derived from
13*       this software without specific prior written permission.
14*
15* THIS SOFTWARE IS PROVIDED BY STANFORD UNIVERSITY ``AS IS'' AND ANY
16* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18* DISCLAIMED. IN NO EVENT SHALL STANFORD UNIVERSITY BE LIABLE FOR ANY
19* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25*/ 
26
27#ifndef TASK_Q_
28#define TASK_Q_
29
30#include <stdint.h>
31
32typedef struct {
33    union {
34        uint32_t        v[4];
35        struct {
36            uint32_t    id;
37            uint32_t    len;
38            uint32_t    data;
39            uint32_t    pad;
40        };
41    };
42} task_t;
43
44struct taskQ_t;
45typedef struct taskQ_t taskQ_t;
46
47int tq_enqueue (taskQ_t* tq, task_t *task, int lgrp, int tid);
48int tq_enqueue_seq (taskQ_t* tq, task_t *task, int lgrp);
49int tq_dequeue (taskQ_t* tq, task_t *task, int lgrp, int tid);
50taskQ_t* tq_init (int num_threads);
51void tq_reset (taskQ_t* tq, int num_threads);
52void tq_finalize (taskQ_t* tq);
53
54#endif /* TASK_Q_ */
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