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Revision 1.6, Sun Mar 5 00:49:19 2006 UTC (18 years, 1 month ago) by cube
Branch: MAIN
CVS Tags: yamt-x86pmap-base4, yamt-x86pmap-base3, yamt-x86pmap-base2, yamt-x86pmap-base, yamt-x86pmap, yamt-splraiseipl-base5, yamt-splraiseipl-base4, yamt-splraiseipl-base3, yamt-splraiseipl-base2, yamt-splraiseipl-base, yamt-splraiseipl, yamt-pf42-baseX, yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pf42-base, yamt-pf42, yamt-pdpolicy-base9, yamt-pdpolicy-base8, yamt-pdpolicy-base7, yamt-pdpolicy-base6, yamt-pdpolicy-base5, yamt-pdpolicy-base4, yamt-pdpolicy-base3, yamt-pdpolicy-base2, yamt-pdpolicy-base, yamt-nfs-mp-base2, yamt-nfs-mp-base, yamt-lazymbuf-base15, yamt-lazymbuf-base14, yamt-kmem-base3, yamt-kmem-base2, yamt-kmem-base, yamt-kmem, yamt-idlelwp-base8, yamt-idlelwp, wrstuden-revivesa-base-4, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, vmlocking2-base3, vmlocking2-base2, vmlocking2-base1, vmlocking2, vmlocking-nbase, vmlocking-base, vmlocking, thorpej-atomic-base, thorpej-atomic, simonb-wapbl-nbase, simonb-wapbl-base, simonb-wapbl, simonb-timecounters-base, rpaulo-netinet-merge-pcb-base, reinoud-bufcleanup-nbase, reinoud-bufcleanup-base, reinoud-bufcleanup, post-newlock2-merge, peter-altq-base, peter-altq, nick-net80211-sync-base, nick-net80211-sync, nick-csl-alignment-base5, nick-csl-alignment-base, nick-csl-alignment, newlock2-nbase, newlock2-base, newlock2, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, mjf-ufs-trans-base, mjf-ufs-trans, mjf-devfs-base, mjf-devfs, matt-nb4-arm-base, matt-nb4-arm, matt-mips64-base, matt-mips64, matt-armv6-prevmlocking, matt-armv6-nbase, matt-armv6-base, matt-armv6, keiichi-mipv6-nbase, keiichi-mipv6-base, keiichi-mipv6, jmcneill-pm-base, jmcneill-pm, jmcneill-base, hpcarm-cleanup-nbase, hpcarm-cleanup-base, hpcarm-cleanup, haad-dm-base1, gdamore-uart-base, gdamore-uart, elad-kernelauth-base, elad-kernelauth, cube-autoconf-base, cube-autoconf, chap-midi-nbase, chap-midi-base, chap-midi, bouyer-xeni386-nbase, bouyer-xeni386-merge1, bouyer-xeni386-base, bouyer-xeni386, bouyer-xenamd64-base2, bouyer-xenamd64-base, bouyer-xenamd64, ad-socklock-base1, ad-audiomp-base, ad-audiomp, abandoned-netbsd-4-base, abandoned-netbsd-4
Branch point for: yamt-pdpolicy, yamt-nfs-mp, mjf-devfs2, haad-dm
Changes since 1.5: +5 -1 lines 

Change the way semid_t values are chosen.  Instead of using kernel
addresses, use a uint32_t counter and the machinery to properly use it.
That makes the ksem_* system calls friendly for COMPAT_NETBSD32.

OK'd by thorpej@.

/*	$NetBSD: ksem.h,v 1.6 2006/03/05 00:49:19 cube Exp $	*/

/*
 * Copyright (c) 2002 Alfred Perlstein <alfred@FreeBSD.org>
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR 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.
 */

#ifndef _SYS_KSEM_H_
#define _SYS_KSEM_H_

#include <sys/cdefs.h>

#ifdef _KERNEL
void ksem_init(void);

int do_ksem_init(struct lwp *, unsigned int, semid_t *, copyout_t);
int do_ksem_open(struct lwp *, const char *, int, mode_t, unsigned int,
    semid_t *, copyout_t);
#endif

#ifdef _LIBC
__BEGIN_DECLS
int _ksem_close(semid_t);
int _ksem_destroy(semid_t);
int _ksem_getvalue(semid_t, int *);
int _ksem_init(unsigned int, semid_t *);
int _ksem_open(const char *, int, mode_t, unsigned int, semid_t *);
int _ksem_post(semid_t);
int _ksem_trywait(semid_t);
int _ksem_unlink(const char *);
int _ksem_wait(semid_t);
__END_DECLS
#endif /* _LIBC */

#endif /* _SYS_KSEM_H_ */