external/gpl2/lvm2/dist/libdm/mm/pool.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
   5  * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
   6  *
   7  * This file is part of the device-mapper userspace tools.
   8  *
   9  * This copyrighted material is made available to anyone wishing to use,
  10  * modify, copy, or redistribute it subject to the terms and conditions
  11  * of the GNU Lesser General Public License v.2.1.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this program; if not, write to the Free Software Foundation,
  15  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 #include "dmlib.h"
  19
  20 /* FIXME: thread unsafe */
  21 static DM_LIST_INIT(_dm_pools);
  22 void dm_pools_check_leaks(void);
  23
  24 #ifdef DEBUG_POOL
  25 #include "pool-debug.c"
  26 #else
  27 #include "pool-fast.c"
  28 #endif
  29
  30 char *dm_pool_strdup(struct dm_pool *p, const char *str)
  31 {
  32         char *ret = dm_pool_alloc(p, strlen(str) + 1);
  33
  34         if (ret)
  35                 strcpy(ret, str);
  36
  37         return ret;
  38 }
  39
  40 char *dm_pool_strndup(struct dm_pool *p, const char *str, size_t n)
  41 {
  42         char *ret = dm_pool_alloc(p, n + 1);
  43
  44         if (ret) {
  45                 strncpy(ret, str, n);
  46                 ret[n] = '\0';
  47         }
  48
  49         return ret;
  50 }
  51
  52 void *dm_pool_zalloc(struct dm_pool *p, size_t s)
  53 {
  54         void *ptr = dm_pool_alloc(p, s);
  55
  56         if (ptr)
  57                 memset(ptr, 0, s);
  58
  59         return ptr;
  60 }
  61
  62 void dm_pools_check_leaks(void)
  63 {
  64         struct dm_pool *p;
  65
  66         if (dm_list_empty(&_dm_pools))
  67                 return;
  68
  69         log_error("You have a memory leak (not released memory pool):");
  70         dm_list_iterate_items(p, &_dm_pools) {
  71 #ifdef DEBUG_POOL
  72                 log_error(" [%p] %s (%u bytes)",
  73                           p->orig_pool,
  74                           p->name, p->stats.bytes);
  75 #else
  76                 log_error(" [%p]", p);
  77 #endif
  78         }
  79 }