zfs/lib/libumem/stub_stand.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 /*
  30  * Stubs for the standalone to reduce the dependence on external libraries
  31  */
  32
  33 #include <string.h>
  34 #include "misc.h"
  35
  36 /*ARGSUSED*/
  37 int
  38 cond_init(cond_t *cvp, int type, void *arg)
  39 {
  40         return (0);
  41 }
  42
  43 /*ARGSUSED*/
  44 int
  45 cond_destroy(cond_t *cvp)
  46 {
  47         return (0);
  48 }
  49
  50 /*ARGSUSED*/
  51 int
  52 cond_wait(cond_t *cv, mutex_t *mutex)
  53 {
  54         umem_panic("attempt to wait on standumem cv %p", cv);
  55
  56         /*NOTREACHED*/
  57         return (0);
  58 }
  59
  60 /*ARGSUSED*/
  61 int
  62 cond_broadcast(cond_t *cvp)
  63 {
  64         return (0);
  65 }
  66
  67 /*ARGSUSED*/
  68 int
  69 pthread_setcancelstate(int state, int *oldstate)
  70 {
  71         return (0);
  72 }
  73
  74 thread_t
  75 thr_self(void)
  76 {
  77         return ((thread_t)1);
  78 }
  79
  80 static mutex_t _mp = DEFAULTMUTEX;
  81
  82 /*ARGSUSED*/
  83 int
  84 mutex_init(mutex_t *mp, int type, void *arg)
  85 {
  86         (void) memcpy(mp, &_mp, sizeof (mutex_t));
  87         return (0);
  88 }
  89
  90 /*ARGSUSED*/
  91 int
  92 mutex_destroy(mutex_t *mp)
  93 {
  94         return (0);
  95 }
  96
  97 /*ARGSUSED*/
  98 int
  99 _mutex_held(mutex_t *mp)
 100 {
 101         return (1);
 102 }
 103
 104 /*ARGSUSED*/
 105 int
 106 mutex_lock(mutex_t *mp)
 107 {
 108         return (0);
 109 }
 110
 111 /*ARGSUSED*/
 112 int
 113 mutex_trylock(mutex_t *mp)
 114 {
 115         return (0);
 116 }
 117
 118 /*ARGSUSED*/
 119 int
 120 mutex_unlock(mutex_t *mp)
 121 {
 122         return (0);
 123 }
 124
 125 int
 126 issetugid(void)
 127 {
 128         return (1);
 129 }