1 | /*- |
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2 | * Copyright (c) 2002 Alfred Perlstein <alfred@FreeBSD.org> |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * 1. Redistributions of source code must retain the above copyright |
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9 | * notice, this list of conditions and the following disclaimer. |
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10 | * 2. Redistributions in binary form must reproduce the above copyright |
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11 | * notice, this list of conditions and the following disclaimer in the |
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12 | * documentation and/or other materials provided with the distribution. |
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13 | * |
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14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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24 | * SUCH DAMAGE. |
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25 | * |
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26 | * $FreeBSD$ |
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27 | */ |
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28 | #ifndef __SEMAPHORE_H_ |
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29 | #define __SEMAPHORE_H_ |
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30 | |
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31 | typedef intptr_t semid_t; |
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32 | struct timespec; |
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33 | |
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34 | #ifndef __rtems__ |
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35 | #define SEM_VALUE_MAX __INT_MAX |
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36 | #endif /* __rtems__ */ |
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37 | |
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38 | #ifndef _KERNEL |
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39 | |
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40 | __BEGIN_DECLS |
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41 | |
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42 | int ksem_close(semid_t id); |
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43 | int ksem_post(semid_t id); |
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44 | int ksem_wait(semid_t id); |
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45 | int ksem_trywait(semid_t id); |
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46 | int ksem_timedwait(semid_t id, const struct timespec *abstime); |
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47 | int ksem_init(semid_t *idp, unsigned int value); |
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48 | int ksem_open(semid_t *idp, const char *name, int oflag, mode_t mode, |
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49 | unsigned int value); |
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50 | int ksem_unlink(const char *name); |
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51 | int ksem_getvalue(semid_t id, int *val); |
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52 | int ksem_destroy(semid_t id); |
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53 | |
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54 | __END_DECLS |
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55 | |
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56 | #endif /* !_KERNEL */ |
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57 | |
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58 | #endif /* __SEMAPHORE_H_ */ |
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