1// Licensed to the .NET Foundation under one or more agreements.
2// The .NET Foundation licenses this file to you under the MIT license.
3// See the LICENSE file in the project root for more information.
4
5/*=============================================================
6**
7** Source: createfilemappingw.c (test 6)
8**
9** Purpose: Positive test the CreateFileMappingW API.
10** Test CreateFileMappingW to a "swap" handle with
11** access PAGE_READWRITE.
12**
13**
14**============================================================*/
15#define UNICODE
16#include <palsuite.h>
17
18const int MAPPINGSIZE = 2048;
19HANDLE SWAP_HANDLE = ((VOID *)(-1));
20
21int __cdecl main(int argc, char *argv[])
22{
23 char testString[] = "this is a test string";
24 WCHAR lpObjectName[] = {'m','y','O','b','j','e','c','t','\0'};
25 char results[2048];
26 int RetVal = PASS;
27
28 HANDLE hFileMapRW;
29 LPVOID lpMapViewRW;
30 LPVOID lpMapViewRW2;
31
32 /* Initialize the PAL environment.
33 */
34 if(0 != PAL_Initialize(argc, argv))
35 {
36 return FAIL;
37 }
38
39 /* Initialize the buffers.
40 */
41 memset(results, 0, MAPPINGSIZE);
42
43 /* Create a named file-mapping object with file handle FileHandle
44 * and with PAGE_READWRITE protection.
45 */
46 hFileMapRW = CreateFileMapping(
47 SWAP_HANDLE,
48 NULL, /*not inherited*/
49 PAGE_READWRITE, /*read write*/
50 0, /*high-order size*/
51 MAPPINGSIZE, /*low-order size*/
52 lpObjectName); /*named object*/
53
54 if(NULL == hFileMapRW)
55 {
56 Fail("ERROR:%u: Failed to create File Mapping.\n",
57 GetLastError());
58 }
59
60 /* Create a map view of the READWRITE file mapping.
61 */
62 lpMapViewRW = MapViewOfFile(
63 hFileMapRW,
64 FILE_MAP_ALL_ACCESS,/* access code */
65 0, /* high order offset*/
66 0, /* low order offset*/
67 MAPPINGSIZE); /* number of bytes for map */
68
69 if(NULL == lpMapViewRW)
70 {
71 Trace("ERROR:%u: Failed to call MapViewOfFile "
72 "API to map a view of file!\n",
73 GetLastError());
74 RetVal = FAIL;
75 goto CleanUpOne;
76 }
77
78
79 /* maps a view of a file into the address space of the calling process.
80 */
81 lpMapViewRW2 = MapViewOfFile(
82 hFileMapRW,
83 FILE_MAP_ALL_ACCESS, /* access code */
84 0, /* high order offset*/
85 0, /* low order offset*/
86 MAPPINGSIZE); /* number of bytes for map */
87
88 if(NULL == lpMapViewRW2)
89 {
90 Trace("ERROR:%u: Failed to call MapViewOfFile "
91 "API to map a view of file!\n",
92 GetLastError());
93 RetVal = FAIL;
94 goto CleanUpTwo;
95 }
96
97 /* Write the test string to the Map view.
98 */
99 memcpy(lpMapViewRW, testString, strlen(testString));
100
101 /* Read from the second Map view.
102 */
103 memcpy(results, (LPCSTR)lpMapViewRW2, MAPPINGSIZE);
104
105 /* Verify the contents of the file mapping,
106 * by comparing what was written to what was read.
107 */
108 if (memcmp(results, testString, strlen(testString))!= 0)
109 {
110 Trace("ERROR: MapViewOfFile not equal to file contents "
111 "retrieved \"%s\", expected \"%s\".\n",
112 results,
113 testString);
114 RetVal = FAIL;
115 goto CleanUpThree;
116 }
117
118 /* Test successful.
119 */
120 RetVal = PASS;
121
122CleanUpThree:
123
124 /* Unmap the view of file.
125 */
126 if ( UnmapViewOfFile(lpMapViewRW2) == FALSE )
127 {
128 Trace("ERROR:%u: Failed to UnmapViewOfFile of \"%0x%lx\".\n",
129 GetLastError(),
130 lpMapViewRW2);
131 RetVal = FAIL;
132 }
133
134CleanUpTwo:
135
136 /* Unmap the view of file.
137 */
138 if ( UnmapViewOfFile(lpMapViewRW) == FALSE )
139 {
140 Trace("ERROR:%u: Failed to UnmapViewOfFile of \"%0x%lx\".\n",
141 GetLastError(),
142 lpMapViewRW);
143 RetVal = FAIL;
144 }
145
146
147CleanUpOne:
148
149 /* Close Handle to create file mapping.
150 */
151 if ( CloseHandle(hFileMapRW) == FALSE )
152 {
153 Trace("ERROR:%u: Failed to CloseHandle \"0x%lx\".\n",
154 GetLastError(),
155 hFileMapRW);
156 RetVal = FAIL;
157 }
158
159
160 /* Terminate the PAL.
161 */
162 PAL_TerminateEx(RetVal);
163 return RetVal;
164}
165
166