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netbsd32_sem.c revision 1.7.2.1
      1  1.7.2.1  wrstuden /*	$NetBSD: netbsd32_sem.c,v 1.7.2.1 2008/05/10 23:48:58 wrstuden Exp $	*/
      2      1.1      cube 
      3      1.1      cube /*
      4      1.1      cube  *  Copyright (c) 2006 The NetBSD Foundation.
      5      1.1      cube  *  All rights reserved.
      6      1.1      cube  *
      7      1.1      cube  *  Redistribution and use in source and binary forms, with or without
      8      1.1      cube  *  modification, are permitted provided that the following conditions
      9      1.1      cube  *  are met:
     10      1.1      cube  *  1. Redistributions of source code must retain the above copyright
     11      1.1      cube  *     notice, this list of conditions and the following disclaimer.
     12      1.1      cube  *  2. Redistributions in binary form must reproduce the above copyright
     13      1.1      cube  *     notice, this list of conditions and the following disclaimer in the
     14      1.1      cube  *     documentation and/or other materials provided with the distribution.
     15      1.1      cube  *
     16      1.1      cube  *  THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17      1.1      cube  *  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18      1.1      cube  *  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19      1.1      cube  *  PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20      1.1      cube  *  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21      1.1      cube  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22      1.1      cube  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23      1.1      cube  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24      1.1      cube  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25      1.1      cube  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26      1.1      cube  *  POSSIBILITY OF SUCH DAMAGE.
     27      1.1      cube  */
     28      1.1      cube 
     29      1.1      cube #include <sys/cdefs.h>
     30  1.7.2.1  wrstuden __KERNEL_RCSID(0, "$NetBSD: netbsd32_sem.c,v 1.7.2.1 2008/05/10 23:48:58 wrstuden Exp $");
     31      1.1      cube 
     32      1.1      cube #ifdef _KERNEL_OPT
     33      1.1      cube #include "opt_posix.h"
     34      1.1      cube #endif
     35      1.1      cube 
     36      1.1      cube #include <sys/types.h>
     37      1.1      cube #include <sys/param.h>
     38      1.1      cube #include <sys/systm.h>
     39      1.1      cube #include <sys/kernel.h>
     40      1.1      cube #include <sys/dirent.h>
     41      1.1      cube #include <sys/ksem.h>
     42      1.1      cube #include <sys/mount.h>
     43      1.1      cube #include <sys/proc.h>
     44  1.7.2.1  wrstuden #include <sys/sa.h>
     45      1.1      cube #include <sys/syscallargs.h>
     46      1.1      cube 
     47      1.1      cube #include <compat/netbsd32/netbsd32.h>
     48      1.1      cube #include <compat/netbsd32/netbsd32_syscallargs.h>
     49      1.1      cube #include <compat/netbsd32/netbsd32_conv.h>
     50      1.1      cube 
     51      1.1      cube static int
     52      1.1      cube netbsd32_ksem_copyout(const void *src, void *dst, size_t size)
     53      1.1      cube {
     54      1.1      cube 	const semid_t *idp = src;
     55      1.1      cube 	netbsd32_semid_t id32, *outidp = dst;
     56      1.1      cube 
     57      1.1      cube 	KASSERT(size == sizeof(semid_t));
     58      1.1      cube 
     59      1.3       dsl 	/* Returning a kernel pointer to userspace sucks badly :-( */
     60      1.3       dsl 	id32 = (netbsd32_semid_t)*idp;
     61      1.1      cube 	return copyout(&id32, outidp, sizeof(id32));
     62      1.1      cube }
     63      1.1      cube 
     64      1.1      cube int
     65      1.6       dsl netbsd32__ksem_init(struct lwp *l, const struct netbsd32__ksem_init_args *uap, register_t *retval)
     66      1.1      cube {
     67      1.6       dsl 	/* {
     68      1.1      cube 		syscallarg(unsigned int) value;
     69      1.1      cube 		syscallarg(netbsd32_semidp_t) idp;
     70      1.6       dsl 	} */
     71      1.1      cube 
     72      1.1      cube 	return do_ksem_init(l, SCARG(uap, value),
     73      1.4       dsl 	    SCARG_P32(uap, idp), netbsd32_ksem_copyout);
     74      1.1      cube }
     75      1.1      cube 
     76      1.1      cube int
     77      1.6       dsl netbsd32__ksem_open(struct lwp *l, const struct netbsd32__ksem_open_args *uap, register_t *retval)
     78      1.1      cube {
     79      1.6       dsl 	/* {
     80      1.1      cube 		syscallarg(const netbsd32_charp) name;
     81      1.1      cube 		syscallarg(int) oflag;
     82      1.1      cube 		syscallarg(mode_t) mode;
     83      1.1      cube 		syscallarg(unsigned int) value;
     84      1.1      cube 		syscallarg(netbsd32_semidp_t) idp;
     85      1.6       dsl 	} */
     86      1.1      cube 
     87      1.4       dsl 	return do_ksem_open(l, SCARG_P32(uap, name),
     88      1.1      cube 	    SCARG(uap, oflag), SCARG(uap, mode), SCARG(uap, value),
     89      1.4       dsl 	    SCARG_P32(uap, idp), netbsd32_ksem_copyout);
     90      1.1      cube }
     91      1.1      cube 
     92      1.1      cube int
     93      1.6       dsl netbsd32__ksem_unlink(struct lwp *l, const struct netbsd32__ksem_unlink_args *uap, register_t *retval)
     94      1.1      cube {
     95      1.6       dsl 	/* {
     96      1.1      cube 		syscallarg(const netbsd32_charp) name;
     97      1.6       dsl 	} */
     98      1.1      cube 	struct sys__ksem_unlink_args ua;
     99      1.1      cube 
    100      1.1      cube 	NETBSD32TOP_UAP(name, const char);
    101      1.1      cube 	return sys__ksem_unlink(l, &ua, retval);
    102      1.1      cube }
    103      1.1      cube 
    104      1.1      cube int
    105      1.6       dsl netbsd32__ksem_close(struct lwp *l, const struct netbsd32__ksem_close_args *uap, register_t *retval)
    106      1.1      cube {
    107      1.6       dsl 	/* {
    108      1.1      cube 		syscallarg(netbsd32_semid_t) id;
    109      1.6       dsl 	} */
    110      1.1      cube 	struct sys__ksem_close_args ua;
    111      1.1      cube 
    112      1.1      cube 	NETBSD32TOX_UAP(id, semid_t);
    113      1.1      cube 	return sys__ksem_close(l, &ua, retval);
    114      1.1      cube }
    115      1.1      cube 
    116      1.1      cube int
    117      1.6       dsl netbsd32__ksem_post(struct lwp *l, const struct netbsd32__ksem_post_args *uap, register_t *retval)
    118      1.1      cube {
    119      1.6       dsl 	/* {
    120      1.1      cube 		syscallarg(netbsd32_semid_t) id;
    121      1.6       dsl 	} */
    122      1.1      cube 	struct sys__ksem_post_args ua;
    123      1.1      cube 
    124      1.1      cube 	NETBSD32TOX_UAP(id, semid_t);
    125      1.1      cube 	return sys__ksem_post(l, &ua, retval);
    126      1.1      cube }
    127      1.1      cube 
    128      1.1      cube int
    129      1.6       dsl netbsd32__ksem_wait(struct lwp *l, const struct netbsd32__ksem_wait_args *uap, register_t *retval)
    130      1.1      cube {
    131      1.6       dsl 	/* {
    132      1.1      cube 		syscallarg(netbsd32_semid_t) id;
    133      1.6       dsl 	} */
    134      1.1      cube 	struct sys__ksem_wait_args ua;
    135      1.1      cube 
    136      1.1      cube 	NETBSD32TOX_UAP(id, semid_t);
    137      1.1      cube 	return sys__ksem_wait(l, &ua, retval);
    138      1.1      cube }
    139      1.1      cube 
    140      1.1      cube int
    141      1.6       dsl netbsd32__ksem_trywait(struct lwp *l, const struct netbsd32__ksem_trywait_args *uap, register_t *retval)
    142      1.1      cube {
    143      1.6       dsl 	/* {
    144      1.1      cube 		syscallarg(netbsd32_semid_t) id;
    145      1.6       dsl 	} */
    146      1.1      cube 	struct sys__ksem_trywait_args ua;
    147      1.1      cube 
    148      1.1      cube 	NETBSD32TOX_UAP(id, semid_t);
    149      1.1      cube 	return sys__ksem_trywait(l, &ua, retval);
    150      1.1      cube }
    151      1.1      cube 
    152      1.1      cube int
    153      1.6       dsl netbsd32__ksem_destroy(struct lwp *l, const struct netbsd32__ksem_destroy_args *uap, register_t *retval)
    154      1.1      cube {
    155      1.6       dsl 	/* {
    156      1.1      cube 		syscallarg(netbsd32_semid_t) id;
    157      1.6       dsl 	} */
    158      1.1      cube 	struct sys__ksem_destroy_args ua;
    159      1.1      cube 
    160      1.1      cube 	NETBSD32TOX_UAP(id, semid_t);
    161      1.1      cube 	return sys__ksem_destroy(l, &ua, retval);
    162      1.1      cube }
    163      1.1      cube 
    164      1.1      cube int
    165      1.6       dsl netbsd32__ksem_getvalue(struct lwp *l, const struct netbsd32__ksem_getvalue_args *uap, register_t *retval)
    166      1.1      cube {
    167      1.6       dsl 	/* {
    168      1.1      cube 		syscallarg(netbsd32_semid_t) id;
    169      1.1      cube 		syscallarg(netbsd32_intp) value;
    170      1.6       dsl 	} */
    171      1.1      cube 	struct sys__ksem_getvalue_args ua;
    172      1.1      cube 
    173      1.1      cube 	NETBSD32TOX_UAP(id, semid_t);
    174      1.1      cube 	NETBSD32TOP_UAP(value, unsigned int);
    175      1.1      cube 	return sys__ksem_getvalue(l, &ua, retval);
    176      1.1      cube }
    177