src/mem.h

   1 /*
   2     Copyright (C) 2006-2018 Ben Kibbey <bjk@luxsci.net>
   3
   4     This file is part of pwmd.
   5
   6     Pwmd is free software: you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation, either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     Pwmd is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with Pwmd.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19 #ifndef MEM_H
  20 #define MEM_H
  21 #include <stdlib.h>
  22
  23 #ifdef __cplusplus
  24 extern "C"
  25 {
  26 #endif
  27
  28 #ifdef HAVE_CONFIG_H
  29 #include <config.h>
  30 #endif
  31
  32 #include <sys/types.h>
  33 #include <stdarg.h>
  34
  35 /* To avoid that a compiler optimizes certain memset calls away, these
  36    macros may be used instead. Thanks g10Code. */
  37 #define wipememory(_ptr,_set,_len) do { \
  38     volatile char *_vptr=(volatile char *)(_ptr); \
  39     size_t _vlen=(_len); \
  40     while(_vlen) { *_vptr=(_set); _vptr++; _vlen--; } \
  41 } while(0)
  42
  43 #ifdef MEM_DEBUG
  44 #define xfree free
  45 #define xmalloc malloc
  46 #define xrealloc realloc
  47 #define xcalloc calloc
  48   void *xrealloc_gpgrt (void *, size_t);
  49 #else
  50   void xfree (void *ptr);
  51   void *xmalloc (size_t size);
  52   void *xrealloc (void *ptr, size_t size);
  53   void *xcalloc (size_t nmemb, size_t size);
  54   void *xrealloc_gpgrt (void *, size_t);
  55 #endif
  56
  57 #ifdef __cplusplus
  58 }
  59 #endif
  60
  61 #endif