ode/src/memory.cpp

   1 /*************************************************************************
   2  *                                                                       *
   3  * Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith.       *
   4  * All rights reserved.  Email: russ@q12.org   Web: www.q12.org          *
   5  *                                                                       *
   6  * This library is free software; you can redistribute it and/or         *
   7  * modify it under the terms of EITHER:                                  *
   8  *   (1) The GNU Lesser General Public License as published by the Free  *
   9  *       Software Foundation; either version 2.1 of the License, or (at  *
  10  *       your option) any later version. The text of the GNU Lesser      *
  11  *       General Public License is included with this library in the     *
  12  *       file LICENSE.TXT.                                               *
  13  *   (2) The BSD-style license that is included with this library in     *
  14  *       the file LICENSE-BSD.TXT.                                       *
  15  *                                                                       *
  16  * This library is distributed in the hope that it will be useful,       *
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files    *
  19  * LICENSE.TXT and LICENSE-BSD.TXT for more details.                     *
  20  *                                                                       *
  21  *************************************************************************/
  22
  23 #include <ode/odeconfig.h>
  24 #include <ode/memory.h>
  25 #include <ode/error.h>
  26 #include "config.h"
  27
  28
  29 static dAllocFunction *allocfn = 0;
  30 static dReallocFunction *reallocfn = 0;
  31 static dFreeFunction *freefn = 0;
  32
  33 #ifdef __MINGW32__
  34 /*
  35    this is a guard against AC_FUNC_MALLOC and AC_FUNC_REALLOC
  36    which break cross compilation, no issues in native MSYS.
  37 */
  38 #undef malloc
  39 #undef realloc
  40 #endif
  41
  42 void dSetAllocHandler (dAllocFunction *fn)
  43 {
  44   allocfn = fn;
  45 }
  46
  47
  48 void dSetReallocHandler (dReallocFunction *fn)
  49 {
  50   reallocfn = fn;
  51 }
  52
  53
  54 void dSetFreeHandler (dFreeFunction *fn)
  55 {
  56   freefn = fn;
  57 }
  58
  59
  60 dAllocFunction *dGetAllocHandler()
  61 {
  62   return allocfn;
  63 }
  64
  65
  66 dReallocFunction *dGetReallocHandler()
  67 {
  68   return reallocfn;
  69 }
  70
  71
  72 dFreeFunction *dGetFreeHandler()
  73 {
  74   return freefn;
  75 }
  76
  77
  78 void * dAlloc (size_t size)
  79 {
  80   if (allocfn) return allocfn (size); else return malloc (size);
  81 }
  82
  83
  84 void * dRealloc (void *ptr, size_t oldsize, size_t newsize)
  85 {
  86   if (reallocfn) return reallocfn (ptr,oldsize,newsize);
  87   else return realloc (ptr,newsize);
  88 }
  89
  90
  91 void dFree (void *ptr, size_t size)
  92 {
  93   if (!ptr) return;
  94   if (freefn) freefn (ptr,size); else free (ptr);
  95 }