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Annotation of XNU/bsd/sys/semaphore.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * The contents of this file constitute Original Code as defined in and
                      7:  * are subject to the Apple Public Source License Version 1.1 (the
                      8:  * "License").  You may not use this file except in compliance with the
                      9:  * License.  Please obtain a copy of the License at
                     10:  * http://www.apple.com/publicsource and read it before using this file.
                     11:  * 
                     12:  * This Original Code and all software distributed under the License are
                     13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     17:  * License for the specific language governing rights and limitations
                     18:  * under the License.
                     19:  * 
                     20:  * @APPLE_LICENSE_HEADER_END@
                     21:  */
                     22: /*     @(#)semaphore.h 1.0     2/29/00         */
                     23: 
                     24: 
                     25: 
                     26: /* 
                     27:  * semaphore.h - POSIX semaphores
                     28:  *
                     29:  * HISTORY
                     30:  * 29-Feb-00   A.Ramesh at Apple
                     31:  *     Created for Mac OS X
                     32:  */
                     33: 
                     34: #ifndef        _SYS_SEMAPHORE_H_
                     35: #define _SYS_SEMAPHORE_H_
                     36: 
                     37: typedef int sem_t;
                     38: /* this should go in limits.h> */
                     39: #define SEM_VALUE_MAX 32767
                     40: #define SEM_FAILED -1
                     41: 
                     42: #ifndef KERNEL
                     43: int sem_close(sem_t *);
                     44: int sem_destroy(sem_t *);
                     45: int sem_getvalue(sem_t *, int *);
                     46: int sem_init(sem_t *, int, unsigned int);
                     47: sem_t * sem_open(const char *, int, ...);
                     48: int sem_post(sem_t *);
                     49: int sem_trywait(sem_t *);
                     50: int sem_unlink(const char *);
                     51: int sem_wait(sem_t *);
                     52: 
                     53: #endif /* KERNEL */
                     54: 
                     55: #endif /* _SYS_SEMAPHORE_H_ */

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