1 /*
2 * Copyright (c) 2017, Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included
12 * in all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22
23 #ifndef CMRTLIB_AGNOSTIC_SHARE_CM_MEM_H_
24 #define CMRTLIB_AGNOSTIC_SHARE_CM_MEM_H_
25
26 #include <cstring>
27 #include <new>
28 #include "cm_debug.h"
29
30 #define CmSafeDeleteArray(_ptr) {if(_ptr) {delete[] (_ptr); (_ptr)=0;}}
31 #define CmSafeRelease(_ptr) {if(_ptr) {delete (_ptr); (_ptr)=0;}}
32
33 /*****************************************************************************\
34 Inline Function:
35 CmSafeMemCopy
36
37 Description:
38 Exception Handler Memory Copy function
39 \*****************************************************************************/
CmSafeMemCopy(void * dst,const void * src,const size_t bytes)40 inline void CmSafeMemCopy( void* dst, const void* src, const size_t bytes )
41 {
42 #ifdef _DEBUG
43 __try
44 #endif
45 {
46 memcpy( dst, src, bytes );
47 }
48 #ifdef _DEBUG
49 // catch exceptions here so they are easily debugged
50 __except(EXCEPTION_EXECUTE_HANDLER)
51 {
52 CmAssert(0);
53 }
54 #endif
55 }
56
57 /*****************************************************************************\
58 Inline Function:
59 CmSafeMemSet
60
61 Description:
62 Memory set
63 \*****************************************************************************/
CmSafeMemSet(void * dst,const int data,const size_t bytes)64 inline void CmSafeMemSet( void* dst, const int data, const size_t bytes )
65 {
66 #ifdef _DEBUG
67 __try
68 #endif
69 {
70 ::memset( dst, data, bytes );
71 }
72 #ifdef _DEBUG
73 // catch exceptions here so they are easily debugged
74 __except(EXCEPTION_EXECUTE_HANDLER)
75 {
76 CmAssert(0);
77 }
78 #endif
79 }
80
CmDwordMemSet(void * dst,const uint32_t data,const size_t bytes)81 inline void CmDwordMemSet( void* dst, const uint32_t data, const size_t bytes )
82 {
83 uint32_t *ptr = reinterpret_cast<uint32_t*>( dst );
84 uint32_t size = (uint32_t)(bytes >> 2); // divide by 4 byte to dword
85 uint32_t *maxPtr = ptr + size;
86 while(ptr < maxPtr)
87 *ptr++ = data;
88 }
89
90 /*****************************************************************************\
91 Inline Function:
92 CmSafeMemCompare
93
94 Description:
95 Exception Handler Memory Compare function
96 \*****************************************************************************/
CmSafeMemCompare(const void * dst,const void * src,const size_t bytes)97 inline int CmSafeMemCompare(const void* dst, const void* src, const size_t bytes)
98 {
99 #ifdef _DEBUG
100 __try
101 #endif
102 {
103 return ::memcmp(dst, src, bytes);
104 }
105 #ifdef _DEBUG
106 // catch exceptions here so they are easily debugged
107 __except (EXCEPTION_EXECUTE_HANDLER)
108 {
109 CmAssert(0);
110 return 0x7FFFFFFF; // An unreasonably large value indicating errors.
111 }
112 #endif
113 }
114
115 #endif // #ifndef CMRTLIB_AGNOSTIC_SHARE_CM_MEM_H_
116