1 /* $NetBSD: ksem.h,v 1.11 2008/11/14 15:49:21 ad Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Alfred Perlstein <alfred@FreeBSD.org> 5 * All rights reserved. 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 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _SYS_KSEM_H_ 30 #define _SYS_KSEM_H_ 31 32 #include <sys/cdefs.h> 33 34 #ifdef _KERNEL 35 #define KSEM_MAX 128 36 37 int do_ksem_init(struct lwp *, unsigned int, intptr_t *, copyout_t); 38 int do_ksem_open(struct lwp *, const char *, int, mode_t, unsigned int, 39 intptr_t *, copyout_t); 40 41 extern int posix_semaphores; 42 extern int ksem_max; 43 #endif 44 45 #ifdef _LIBC 46 __BEGIN_DECLS 47 int _ksem_close(intptr_t); 48 int _ksem_destroy(intptr_t); 49 int _ksem_getvalue(intptr_t, int *); 50 int _ksem_init(unsigned int, intptr_t *); 51 int _ksem_open(const char *, int, mode_t, unsigned int, intptr_t *); 52 int _ksem_post(intptr_t); 53 int _ksem_trywait(intptr_t); 54 int _ksem_unlink(const char *); 55 int _ksem_wait(intptr_t); 56 __END_DECLS 57 #endif /* _LIBC */ 58 59 #endif /* _SYS_KSEM_H_ */ 60