flight/pios/common/pios_mem.c

   1 /**
   2  ******************************************************************************
   3  *
   4  * @file       pios_mem.c
   5  * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2014.
   6  * @addtogroup PiOS
   7  * @{
   8  * @addtogroup PiOS
   9  * @{
  10  * @brief PiOS memory allocation API
  11  *****************************************************************************/
  12 /*
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 3 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful, but
  19  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  20  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  21  * for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License along
  24  * with this program; if not, write to the Free Software Foundation, Inc.,
  25  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  26  */
  27 #include <pios.h>
  28 #include <pios_mem.h>
  29
  30 #ifdef PIOS_TARGET_PROVIDES_FAST_HEAP
  31 // relies on pios_general_malloc to perform the allocation (i.e. pios_msheap.c)
  32 extern void *pios_general_malloc(void *ptr, size_t size, bool fastheap);
  33
  34 void *pios_fastheapmalloc(size_t size)
  35 {
  36     return pios_general_malloc(NULL, size, true);
  37 }
  38
  39
  40 void *pios_malloc(size_t size)
  41 {
  42     return pios_general_malloc(NULL, size, false);
  43 }
  44
  45 void *pios_realloc(__attribute__((unused)) void *ptr, __attribute__((unused)) size_t size)
  46 {
  47 #ifdef PIOS_INCLUDE_REALLOC
  48     return pios_general_malloc(ptr, size, false);
  49
  50 #else
  51     // Not allowed to use realloc without the proper define PIOS_INCLUDE_REALLOC set
  52     while (1) {
  53         ;
  54     }
  55     return NULL;
  56
  57 #endif
  58 }
  59
  60 void pios_free(void *p)
  61 {
  62     vPortFree(p);
  63 }
  64
  65 #else /* ifdef PIOS_TARGET_PROVIDES_FAST_HEAP */
  66 // demand to pvPortMalloc implementation
  67 void *pios_fastheapmalloc(size_t size)
  68 {
  69     return pvPortMalloc(size);
  70 }
  71
  72
  73 void *pios_malloc(size_t size)
  74 {
  75     return pvPortMalloc(size);
  76 }
  77
  78 void *pios_realloc(__attribute__((unused)) void *ptr, __attribute__((unused)) size_t size)
  79 {
  80 #ifdef PIOS_INCLUDE_REALLOC
  81     return pvPortMalloc(size);
  82
  83 #else
  84     // Not allowed to use realloc without the proper define PIOS_INCLUDE_REALLOC set
  85     while (1) {
  86         ;
  87     }
  88     return NULL;
  89
  90 #endif
  91 }
  92
  93 void pios_free(void *p)
  94 {
  95     vPortFree(p);
  96 }
  97
  98 #endif /* ifdef PIOS_TARGET_PROVIDES_FAST_HEAP */