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Diffstat (limited to 'sys/sys/semaphore.h')
| -rw-r--r-- | sys/sys/semaphore.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/sys/sys/semaphore.h b/sys/sys/semaphore.h new file mode 100644 index 0000000..fbcab13 --- /dev/null +++ b/sys/sys/semaphore.h @@ -0,0 +1,61 @@ +#ifndef _SEMAPHORE_H_ +#define _SEMAPHORE_H_ + +/* semaphore.h: POSIX.4 semaphores */ + +/*- + * Copyright (c) 1996, 1997 + * HD Associates, Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by HD Associates, Inc + * 4. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#ifdef POSIX4_INCLUDE_MAYBES +#include <sys/types.h> +#include <fcntl.h> +#endif + +typedef int sem_t; + +#ifndef KERNEL +#include <sys/cdefs.h> + +int sem_init __P(sem_t *, int, unsigned int)); +int sem_destroy __P((sem_t *)); +sem_t sem_open __P((const char *, int, ...)); +int sem_close __P((sem_t *)); +int sem_unlink __P((const char *)); +int sem_wait((sem_t *)); +int sem_trywait((sem_t *)); +int sem_post((sem_t *)); +int sem_getvalue((sem_t *, int *)); + +#endif /* KERNEL */ + +#endif /* _SEMAPHORE_H_ */ |
