release/src/router/mysql/storage/ndb/src/common/portlib/NdbMem.c

   1 /* Copyright (c) 2003-2005, 2007 MySQL AB
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; version 2 of the License.
   6
   7    This program is distributed in the hope that it will be useful,
   8    but WITHOUT ANY WARRANTY; without even the implied warranty of
   9    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10    GNU General Public License for more details.
  11
  12    You should have received a copy of the GNU General Public License
  13    along with this program; if not, write to the Free Software
  14    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA */
  15
  16
  17 #include <ndb_global.h>
  18
  19 #include <NdbMem.h>
  20
  21 void NdbMem_Create()
  22 {
  23   /* Do nothing */
  24   return;
  25 }
  26
  27 void NdbMem_Destroy()
  28 {
  29   /* Do nothing */
  30   return;
  31 }
  32
  33
  34 void* NdbMem_Allocate(size_t size)
  35 {
  36   void* mem_allocated;
  37   assert(size > 0);
  38   mem_allocated= (void*)malloc(size);
  39   return mem_allocated;
  40 }
  41
  42 void* NdbMem_AllocateAlign(size_t size, size_t alignment)
  43 {
  44   (void)alignment; /* remove warning for unused parameter */
  45   /*
  46     return (void*)memalign(alignment, size);
  47     TEMP fix
  48   */
  49   return (void*)malloc(size);
  50 }
  51
  52
  53 void NdbMem_Free(void* ptr)
  54 {
  55   free(ptr);
  56 }
  57
  58
  59 int NdbMem_MemLockAll(int i){
  60   if (i == 1)
  61   {
  62 #if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT) && defined (MCL_FUTURE)
  63     return mlockall(MCL_CURRENT | MCL_FUTURE);
  64 #else
  65     return -1;
  66 #endif
  67   }
  68 #if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT)
  69   return mlockall(MCL_CURRENT);
  70 #else
  71   return -1;
  72 #endif
  73 }
  74
  75 int NdbMem_MemUnlockAll(){
  76 #if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT)
  77   return munlockall();
  78 #else
  79   return -1;
  80 #endif
  81 }
  82