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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*=============================================================
**
** Source: openfilemappingw.c (test 2)
**
** Purpose: Positive test the OpenFileMapping API.
** Call OpenFileMapping to open a named file-mapping
** object with FILE_MAP_WRITE access
**
**
**============================================================*/
#define UNICODE
#include <palsuite.h>
int __cdecl main(int argc, char *argv[])
{
HANDLE FileMappingHandle;
HANDLE OpenFileMappingHandle;
HANDLE lpMapViewAddress;
HANDLE OpenFileMappingHandle2;
HANDLE lpMapViewAddress2;
const int LOWORDERSIZE = 1024;
WCHAR MapObject[] = {'m','y','O','b','j','e','c','t','\0'};
char buf[] = "this is a test";
char ch[1024];
int RetVal = PASS;
/* Initialize the PAL environment.
*/
if(0 != PAL_Initialize(argc, argv))
{
return FAIL;
}
/* Create a named file-mapping object with file handle FileHandle.
*/
FileMappingHandle = CreateFileMapping(
INVALID_HANDLE_VALUE,
NULL, /* not inherited */
PAGE_READWRITE, /* read and wite */
0, /* high-order size */
LOWORDERSIZE, /* low-order size */
MapObject); /* named object */
if(NULL == FileMappingHandle)
{
Fail("\nFailed to call CreateFileMapping to "
"create a mapping object!\n");
}
if(GetLastError() == ERROR_ALREADY_EXISTS)
{
Trace("\nFile mapping object already exists!\n");
RetVal = FAIL;
goto CleanUpOne;
}
/* Open a named file-mapping object with FILE_MAP_WRITE access.
*/
OpenFileMappingHandle = OpenFileMapping(
FILE_MAP_WRITE,
FALSE,
MapObject);
if(NULL == OpenFileMappingHandle)
{
Trace("\nFailed to Call OpenFileMappingW API!\n");
RetVal = FAIL;
goto CleanUpOne;
}
/* Open a named file-mapping object with
* FILE_MAP_ALL_ACCESS access, to verify
* the FILE_MAP_WRITE access map.
*/
OpenFileMappingHandle2 = OpenFileMapping(
FILE_MAP_ALL_ACCESS,
FALSE,
MapObject);
if(NULL == OpenFileMappingHandle2)
{
Trace("\nFailed to Call OpenFileMappingW API!\n");
RetVal = FAIL;
goto CleanUpTwo;
}
/* Create map view of the open mapping that has
* FILE_MAP_WRITE access.
*/
lpMapViewAddress = MapViewOfFile(
OpenFileMappingHandle,
FILE_MAP_WRITE, /* access code */
0, /* high order offset */
0, /* low order offset */
LOWORDERSIZE); /* number of bytes for map */
if(NULL == lpMapViewAddress)
{
Trace("ERROR:%u: Failed to call MapViewOfFile "
"API to map a view of file!\n",
GetLastError());
RetVal = FAIL;
goto CleanUpThree;
}
/* Create map view of the open mapping that has
* FILE_MAP_ALL_ACCESS access.
*/
lpMapViewAddress2 = MapViewOfFile(
OpenFileMappingHandle2,
FILE_MAP_ALL_ACCESS, /* access code */
0, /* high order offset */
0, /* low order offset */
LOWORDERSIZE); /* number of bytes for map */
if(NULL == lpMapViewAddress2)
{
Trace("ERROR:%u: Failed to call MapViewOfFile "
"API to map a view of file!\n",
GetLastError());
RetVal = FAIL;
goto CleanUpFour;
}
/* Write to the Map View.
*/
memcpy(lpMapViewAddress, buf, strlen(buf));
/* Read from the Map View.
*/
memcpy(ch, (LPCSTR)lpMapViewAddress, LOWORDERSIZE);
/* Compare what was written to the Map View,
* to what was read.
*/
if (memcmp(ch, buf, strlen(buf))!= 0)
{
Trace("ERROR: MapViewOfFile not equal to file contents "
"retrieved \"%s\", expected \"%s\".\n",
ch, buf);
RetVal = FAIL;
goto CleanUpFive;
}
CleanUpFive:
/* Unmap the view of file.
*/
if ( UnmapViewOfFile(lpMapViewAddress2) == FALSE )
{
Trace("ERROR:%u: Failed to UnmapViewOfFile of \"%0x%lx\".\n",
GetLastError(),
lpMapViewAddress2);
RetVal = FAIL;
}
CleanUpFour:
/* Unmap the view of file.
*/
if ( UnmapViewOfFile(lpMapViewAddress) == FALSE )
{
Trace("ERROR:%u: Failed to UnmapViewOfFile of \"%0x%lx\".\n",
GetLastError(),
lpMapViewAddress);
RetVal = FAIL;
}
CleanUpThree:
/* Close Handle to opened file mapping.
*/
if ( CloseHandle(OpenFileMappingHandle2) == 0 )
{
Trace("ERROR:%u: Failed to CloseHandle \"0x%lx\".\n",
GetLastError(),
OpenFileMappingHandle2);
RetVal = FAIL;
}
CleanUpTwo:
/* Close Handle to opened file mapping.
*/
if ( CloseHandle(OpenFileMappingHandle) == 0 )
{
Trace("ERROR:%u: Failed to CloseHandle \"0x%lx\".\n",
GetLastError(),
OpenFileMappingHandle);
RetVal = FAIL;
}
CleanUpOne:
/* Close Handle to create file mapping.
*/
if ( CloseHandle(FileMappingHandle) == 0 )
{
Trace("ERROR:%u: Failed to CloseHandle \"0x%lx\".\n",
GetLastError(),
FileMappingHandle);
RetVal = FAIL;
}
/* Terminate the PAL.
*/
PAL_TerminateEx(RetVal);
return RetVal;
}
|
