summaryrefslogtreecommitdiff
path: root/src/pal/tests/palsuite/filemapping_memmgt/OpenFileMappingW/test1/OpenFileMappingW.c
blob: 079af4a5c0b0d8d75b71c665ee0c04550ba2f00a (plain)
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
// 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 1)
**
** Purpose: Positive test the OpenFileMapping API.
**          Call OpenFileMapping to open a named file-mapping
**          object with FILE_MAP_ALL_ACCESS access
**
**
**============================================================*/

#define UNICODE
#include <palsuite.h>

int __cdecl main(int argc, char *argv[])
{

    HANDLE  lpMapViewAddress;
    char    buf[] = "this is a test";
    char    ch[1024];

    HANDLE  FileMappingHandle;
    HANDLE  OpenFileMappingHandle;
    const   int LOWORDERSIZE = 1024;
    int     RetVal = PASS;
    WCHAR   wpMappingFileObject[] = {'m','y','O','b','j','e','c','t','\0'};

    /* Initialize the PAL environment.
     */
    if(0 != PAL_Initialize(argc, argv))
    {
        return FAIL;
    }

    /* Create a unnamed file-mapping object with file handle FileHandle.
     */
    FileMappingHandle = CreateFileMapping( 
                                INVALID_HANDLE_VALUE,
                                NULL,                /* Not inherited*/
                                PAGE_READWRITE,      /* Read and write*/
                                0,                   /* High-order size*/
                                LOWORDERSIZE,        /* Low-order size*/
                                wpMappingFileObject);/* 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_ALL_ACCESS access.
     */
    OpenFileMappingHandle =  OpenFileMapping(
                                    FILE_MAP_ALL_ACCESS,
                                    FALSE,
                                    wpMappingFileObject);

    if(NULL == OpenFileMappingHandle)
    {
        Trace("\nFailed to Call OpenFileMapping API!\n");
        RetVal = FAIL;
        goto CleanUpOne;
    }

    /* Test the opened map view.
     */
    lpMapViewAddress = MapViewOfFile(
                            OpenFileMappingHandle,
                            FILE_MAP_ALL_ACCESS, /* 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 CleanUpTwo;
    }

    /* 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 CleanUpThree;
    }

CleanUpThree:
        
        /* Unmap the view of file.
         */
        if ( UnmapViewOfFile(lpMapViewAddress) == FALSE )
        {
            Trace("ERROR:%u: Failed to UnmapViewOfFile of \"%0x%lx\".\n",
                  GetLastError(),
                  lpMapViewAddress);
            RetVal = FAIL;
        }

CleanUpTwo:

        /* Close Handle to opend 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;
}