media/libogg/memory-reporting.patch

   1 commit 16362f7dc755d9a2cfb8df06db74a16fcc97e495
   2 Author: Nathan Froyd <froydnj@mozilla.com>
   3 Date:   Wed Mar 5 10:58:29 2014 -0500
   4
   5     Bug 677653 - part 1 - indirect libogg memory allocations through variables
   6
   7 diff --git a/include/ogg/ogg.h b/include/ogg/ogg.h
   8 index cea4ebe..cebe38e 100644
   9 --- a/include/ogg/ogg.h
  10 +++ b/include/ogg/ogg.h
  11 @@ -202,6 +202,10 @@ extern int      ogg_page_packets(const ogg_page *og);
  12
  13  extern void     ogg_packet_clear(ogg_packet *op);
  14
  15 +extern void     ogg_set_mem_functions(ogg_malloc_function_type *malloc_func,
  16 +                                      ogg_calloc_function_type *calloc_func,
  17 +                                      ogg_realloc_function_type *realloc_func,
  18 +                                      ogg_free_function_type *free_func);
  19
  20  #ifdef __cplusplus
  21  }
  22 diff --git a/include/ogg/os_types.h b/include/ogg/os_types.h
  23 index 2c75a20..83ed732 100644
  24 --- a/include/ogg/os_types.h
  25 +++ b/include/ogg/os_types.h
  26 @@ -17,12 +17,33 @@
  27  #ifndef _OS_TYPES_H
  28  #define _OS_TYPES_H
  29
  30 -/* make it easy on the folks that want to compile the libs with a
  31 -   different malloc than stdlib */
  32 -#define _ogg_malloc  malloc
  33 -#define _ogg_calloc  calloc
  34 -#define _ogg_realloc realloc
  35 -#define _ogg_free    free
  36 +#include <stddef.h>
  37 +
  38 +/* We indirect mallocs through settable-at-runtime functions to accommodate
  39 +   memory reporting in the browser. */
  40 +
  41 +#ifdef __cplusplus
  42 +extern "C" {
  43 +#endif
  44 +
  45 +typedef void* (ogg_malloc_function_type)(size_t);
  46 +typedef void* (ogg_calloc_function_type)(size_t, size_t);
  47 +typedef void* (ogg_realloc_function_type)(void*, size_t);
  48 +typedef void (ogg_free_function_type)(void*);
  49 +
  50 +extern ogg_malloc_function_type *ogg_malloc_func;
  51 +extern ogg_calloc_function_type *ogg_calloc_func;
  52 +extern ogg_realloc_function_type *ogg_realloc_func;
  53 +extern ogg_free_function_type *ogg_free_func;
  54 +
  55 +#ifdef __cplusplus
  56 +}
  57 +#endif
  58 +
  59 +#define _ogg_malloc ogg_malloc_func
  60 +#define _ogg_calloc ogg_calloc_func
  61 +#define _ogg_realloc ogg_realloc_func
  62 +#define _ogg_free ogg_free_func
  63
  64  #if defined(_WIN32)
  65
  66 diff --git a/src/ogg_alloc.c b/src/ogg_alloc.c
  67 new file mode 100644
  68 index 0000000..4238d7b
  69 --- /dev/null
  70 +++ b/src/ogg_alloc.c
  71 @@ -0,0 +1,31 @@
  72 +/********************************************************************
  73 + *                                                                  *
  74 + * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
  75 + * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
  76 + * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
  77 + * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
  78 + *                                                                  *
  79 + * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2002             *
  80 + * by the Xiph.Org Foundation http://www.xiph.org/                  *
  81 + *                                                                  *
  82 + *********************************************************************/
  83 +
  84 +#include <stdlib.h>
  85 +#include "ogg/os_types.h"
  86 +
  87 +ogg_malloc_function_type *ogg_malloc_func = malloc;
  88 +ogg_calloc_function_type *ogg_calloc_func = calloc;
  89 +ogg_realloc_function_type *ogg_realloc_func = realloc;
  90 +ogg_free_function_type *ogg_free_func = free;
  91 +
  92 +void
  93 +ogg_set_mem_functions(ogg_malloc_function_type *malloc_func,
  94 +                      ogg_calloc_function_type *calloc_func,
  95 +                      ogg_realloc_function_type *realloc_func,
  96 +                      ogg_free_function_type *free_func)
  97 +{
  98 +  ogg_malloc_func = malloc_func;
  99 +  ogg_calloc_func = calloc_func;
 100 +  ogg_realloc_func = realloc_func;
 101 +  ogg_free_func = free_func;
 102 +}