vkernel - more crit section work to avoid pthread reentrancy.
[dragonfly.git] / sys / platform / vkernel / include / cothread.h
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1/*
2 * Copyright (c) 2008 The DragonFly Project. All rights reserved.
3 *
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
d19705b2 34 * $DragonFly: src/sys/platform/vkernel/include/cothread.h,v 1.2 2008/03/27 04:28:07 dillon Exp $
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35 */
36
37#ifndef _MACHINE_COTHREAD_H_
38#define _MACHINE_COTHREAD_H_
39
40#include <pthread.h>
41
42struct cothread {
43 pthread_t pthr;
44 pthread_t pintr;
45 void *arg;
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46 void (*thr_func)(struct cothread *);
47 void (*thr_intr)(struct cothread *);
d19265de 48 void *intr_id;
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49 pthread_mutex_t mutex;
50 pthread_cond_t cond;
51};
52
53typedef struct cothread *cothread_t;
54
55cothread_t cothread_create(void (*thr_func)(cothread_t cotd),
56 void (*thr_intr)(cothread_t cotd),
57 void *arg, const char *name);
d19265de 58void cothread_delete(cothread_t *cotdp);
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59void cothread_intr(cothread_t cotd);
60void cothread_signal(cothread_t cotd);
61void cothread_wait(cothread_t cotd);
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62void cothread_lock(cothread_t cotd, int is_cotd);
63void cothread_unlock(cothread_t cotd, int is_cotd);
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64
65#endif