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Diffstat (limited to 'src/pal/tests/palsuite/filemapping_memmgt/MapViewOfFile/test3/MapViewOfFile.cpp')
| -rw-r--r-- | src/pal/tests/palsuite/filemapping_memmgt/MapViewOfFile/test3/MapViewOfFile.cpp | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/filemapping_memmgt/MapViewOfFile/test3/MapViewOfFile.cpp b/src/pal/tests/palsuite/filemapping_memmgt/MapViewOfFile/test3/MapViewOfFile.cpp new file mode 100644 index 0000000000..63bee768f9 --- /dev/null +++ b/src/pal/tests/palsuite/filemapping_memmgt/MapViewOfFile/test3/MapViewOfFile.cpp @@ -0,0 +1,209 @@ +// 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: MapViewOfFile.c +** +** Purpose: Positive test the MapViewOfFile API. +** Call MapViewOfFile with access FILE_MAP_ALL_ACCESS. +** +** Depends: CreateFile, +** GetFileSize, +** memset, +** memcpy, +** memcmp, +** ReadFile, +** UnMapViewOfFile, +** CreateFileMapping, +** CloseHandle. +** +** +**============================================================*/ +#include <palsuite.h> + +int __cdecl main(int argc, char *argv[]) +{ + + HANDLE hFile; + HANDLE hFileMapping; + LPVOID lpMapViewAddress; + char buf[] = "this is a test string"; + const int MAPPINGSIZE = 2048; + char ch[2048]; + char readString[2048]; + char lpFileName[] = "test.tmp"; + DWORD dwBytesRead; + DWORD dwInitialSize = 0; + DWORD dwFinalSize = 0; + BOOL bRetVal; + + /* Initialize the PAL environment. + */ + if(0 != PAL_Initialize(argc, argv)) + { + return FAIL; + } + + /* Create a file handle with CreateFile. + */ + hFile = CreateFile( lpFileName, + GENERIC_WRITE|GENERIC_READ, + FILE_SHARE_READ|FILE_SHARE_WRITE, + NULL, + CREATE_ALWAYS, + FILE_ATTRIBUTE_NORMAL, + NULL); + if (hFile == INVALID_HANDLE_VALUE) + { + Fail("ERROR: %u :unable to create file \"%s\".\n", + GetLastError(), + lpFileName); + } + + /* Get the initial size of file, for latter tests. + */ + dwInitialSize = GetFileSize (hFile, NULL); + if ( dwInitialSize == INVALID_FILE_SIZE ) + { + Trace("ERROR:%u: The created file \"%s\" has an invalid " + "file size.\n", + GetLastError(), + lpFileName); + CloseHandle(hFile); + Fail(""); + } + + /* Initialize the buffers. + */ + memset(ch, 0, MAPPINGSIZE); + memset(readString, 0, MAPPINGSIZE); + + /* Create a unnamed file-mapping object with file handle FileHandle + * and with PAGE_READWRITE protection. + */ + hFileMapping = CreateFileMapping( + hFile, + NULL, /*not inherited*/ + PAGE_READWRITE, /*read and wite*/ + 0, /*high-order of object size*/ + MAPPINGSIZE, /*low-orger of object size*/ + NULL); /*unnamed object*/ + + if(NULL == hFileMapping) + { + Trace("ERROR:%u: Failed to create File Mapping.\n", + GetLastError()); + CloseHandle(hFile); + Fail(""); + } + + /* maps a view of a file into the address space of the calling process. + */ + lpMapViewAddress = MapViewOfFile( + hFileMapping, + FILE_MAP_ALL_ACCESS, /*access code*/ + 0, /*high order offset*/ + 0, /*low order offset*/ + MAPPINGSIZE); /* number of bytes for map */ + + if(NULL == lpMapViewAddress) + { + Trace("ERROR:%u: Failed to call MapViewOfFile API to map a view" + " of file!\n", + GetLastError()); + CloseHandle(hFile); + CloseHandle(hFileMapping); + Fail(""); + } + + /* Verify that the size of the file has increased to + * accomidate the MapView. + */ + dwFinalSize = GetFileSize (hFile, NULL); + if ( (dwFinalSize <= dwInitialSize) && (dwFinalSize != MAPPINGSIZE)) + { + CloseHandle(hFile); + CloseHandle(hFileMapping); + Fail("ERROR: Size of the file was expected to " + "increase from \"%d\", to \"%d\".\n ", + dwInitialSize, + MAPPINGSIZE); + } + + /* Write to the MapView and copy the MapViewOfFile + * to buffer, so we can compare with value read from + * file directly. + */ + + memcpy(lpMapViewAddress, buf, strlen(buf)); + memcpy(ch, (LPCSTR)lpMapViewAddress, MAPPINGSIZE); + + /* Read from the File handle. + */ + bRetVal = ReadFile(hFile, + readString, + strlen(buf), + &dwBytesRead, + NULL); + + if (bRetVal == FALSE) + { + Trace("ERROR: %u :unable to read from file handle " + "hFile=0x%lx\n", + GetLastError(), + hFile); + CloseHandle(hFile); + CloseHandle(hFileMapping); + Fail(""); + } + + if (memcmp(ch, readString, strlen(readString)) != 0) + { + CloseHandle(hFile); + CloseHandle(hFileMapping); + Fail("ERROR: Read string from file \"%s\", is " + "not equal to string written through MapView " + "\"%s\".\n", + readString, + ch); + } + + /* Unmap the view of file. + */ + if(UnmapViewOfFile(lpMapViewAddress) == FALSE) + { + Trace("ERROR: Failed to call UnmapViewOfFile API to" + " unmap the view of a file, error code=%u\n", + GetLastError()); + CloseHandle(hFile); + CloseHandle(hFileMapping); + Fail(""); + } + + /* Close handle to create file. + */ + if(CloseHandle(hFile) == FALSE) + { + Trace("ERROR:%u:Failed to call CloseHandle API " + "to close a file handle.", + GetLastError()); + CloseHandle(hFileMapping); + Fail(""); + } + + /* Close handle to file mapping. + */ + if(CloseHandle(hFileMapping) == FALSE) + { + Fail("ERROR:%u:Failed to call CloseHandle API " + "to close a file handle.", + GetLastError()); + } + + PAL_Terminate(); + return PASS; +} + + |