src/mem.h

   1 /*
   2     Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015,
   3     2016, 2017
   4     Ben Kibbey <bjk@luxsci.net>
   5
   6     This file is part of pwmd.
   7
   8     Pwmd is free software: you can redistribute it and/or modify
   9     it under the terms of the GNU General Public License as published by
  10     the Free Software Foundation, either version 2 of the License, or
  11     (at your option) any later version.
  12
  13     Pwmd is distributed in the hope that it will be useful,
  14     but WITHOUT ANY WARRANTY; without even the implied warranty of
  15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16     GNU General Public License for more details.
  17
  18     You should have received a copy of the GNU General Public License
  19     along with Pwmd.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21 #ifndef MEM_H
  22 #define MEM_H
  23 #include <stdlib.h>
  24
  25 #ifdef __cplusplus
  26 extern "C"
  27 {
  28 #endif
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include <config.h>
  32 #endif
  33
  34 #include <sys/types.h>
  35 #include <stdarg.h>
  36
  37 /* To avoid that a compiler optimizes certain memset calls away, these
  38    macros may be used instead. Thanks g10Code. */
  39 #define wipememory(_ptr,_set,_len) do { \
  40     volatile char *_vptr=(volatile char *)(_ptr); \
  41     size_t _vlen=(_len); \
  42     while(_vlen) { *_vptr=(_set); _vptr++; _vlen--; } \
  43 } while(0)
  44
  45 #ifdef MEM_DEBUG
  46 #define xfree free
  47 #define xmalloc malloc
  48 #define xrealloc realloc
  49 #define xcalloc calloc
  50   void *xrealloc_gpgrt (void *, size_t);
  51 #else
  52   void xfree (void *ptr);
  53   void *xmalloc (size_t size);
  54   void *xrealloc (void *ptr, size_t size);
  55   void *xcalloc (size_t nmemb, size_t size);
  56   void *xrealloc_gpgrt (void *, size_t);
  57 #endif
  58
  59 #ifdef __cplusplus
  60 }
  61 #endif
  62
  63 #endif