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