re #12585 rb4049 ZFS++ work port - refactoring to improve separation of open/closed code, bug fixes, performance improvements - open code
Bug 11205: add missing libzfs_closed_stubs.c to fix opensource-only build.
ZFS plus work: special vdevs, cos, cos/vdev properties

          --- old/usr/src/cmd/zpool/zpool_util.c
          +++ new/usr/src/cmd/zpool/zpool_util.c

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License (the "License").
   6    6   * You may not use this file except in compliance with the License.
   7    7   *
   8    8   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9   * or http://www.opensolaris.org/os/licensing.
  10   10   * See the License for the specific language governing permissions
  11   11   * and limitations under the License.
  12   12   *
  13   13   * When distributing Covered Code, include this CDDL HEADER in each

  14   14   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15   * If applicable, add the following below this CDDL HEADER, with the
  16   16   * fields enclosed by brackets "[]" replaced with your own identifying
  17   17   * information: Portions Copyright [yyyy] [name of copyright owner]
  18   18   *
  19   19   * CDDL HEADER END
  20   20   */
  21   21  /*
  22   22   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  23   23   * Use is subject to license terms.
       24 + * Copyright 2013 Nexenta Systems, Inc. All rights reserved.
  24   25   */
  25   26  
  26   27  #include <errno.h>
  27   28  #include <libgen.h>
  28   29  #include <libintl.h>
  29   30  #include <stdio.h>
  30   31  #include <stdlib.h>
  31   32  #include <strings.h>
  32   33  
  33   34  #include "zpool_util.h"

  34   35  
  35   36  /*
  36   37   * Utility function to guarantee malloc() success.
  37   38   */
  38   39  void *
  39   40  safe_malloc(size_t size)
  40   41  {
  41   42          void *data;
  42   43  
  43   44          if ((data = calloc(1, size)) == NULL) {
  44   45                  (void) fprintf(stderr, "internal error: out of memory\n");
  45   46                  exit(1);
  46   47          }
  47   48  
  48   49          return (data);
  49   50  }
  50   51  
  51   52  /*
  52   53   * Display an out of memory error message and abort the current program.
  53   54   */
  54   55  void
  55   56  zpool_no_memory(void)
  56   57  {
  57   58          assert(errno == ENOMEM);
  58   59          (void) fprintf(stderr,
  59   60              gettext("internal error: out of memory\n"));
  60   61          exit(1);
  61   62  }
  62   63  
  63   64  /*
  64   65   * Return the number of logs in supplied nvlist
  65   66   */
  66   67  uint_t
  67   68  num_logs(nvlist_t *nv)
  68   69  {
  69   70          uint_t nlogs = 0;
  70   71          uint_t c, children;
  71   72          nvlist_t **child;
  72   73  
  73   74          if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
  74   75              &child, &children) != 0)
  75   76                  return (0);

  76   77  
  77   78          for (c = 0; c < children; c++) {
  78   79                  uint64_t is_log = B_FALSE;
  79   80  
  80   81                  (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
  81   82                      &is_log);
  82   83                  if (is_log)
  83   84                          nlogs++;
  84   85          }
  85   86          return (nlogs);
       87 +}
       88 +
       89 +/*
       90 + * Return the number of special vdevs in supplied nvlist
       91 + */
       92 +uint_t
       93 +num_special(nvlist_t *nv)
       94 +{
       95 +        uint_t nspecial = 0;
       96 +        uint_t c, children;
       97 +        nvlist_t **child;
       98 +
       99 +        if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
      100 +            &child, &children) != 0)
      101 +                return (0);
      102 +
      103 +        for (c = 0; c < children; c++) {
      104 +                uint64_t is_special = B_FALSE;
      105 +
      106 +                (void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_SPECIAL,
      107 +                    &is_special);
      108 +                if (is_special)
      109 +                        nspecial++;
      110 +        }
      111 +        return (nspecial);
  86  112  }
    

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