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Diffstat (limited to 'src/pal/tests/palsuite/filemapping_memmgt/LockFile/test4/test4.cpp')
| -rw-r--r-- | src/pal/tests/palsuite/filemapping_memmgt/LockFile/test4/test4.cpp | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/filemapping_memmgt/LockFile/test4/test4.cpp b/src/pal/tests/palsuite/filemapping_memmgt/LockFile/test4/test4.cpp new file mode 100644 index 0000000000..f5cd359fb5 --- /dev/null +++ b/src/pal/tests/palsuite/filemapping_memmgt/LockFile/test4/test4.cpp @@ -0,0 +1,231 @@ +// 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: test4.c +** +** Purpose: +** - Attempt to call LockFile on a file without GENERIC_READ or +** GENERIC_WRITE (this should fail) +** - Attempt to overlap two locks, this should fail. +** +** +**============================================================*/ + +#include <palsuite.h> + +char fileName[] = "testfile.tmp"; + +void OverlapTest() +{ + HANDLE TheFile = NULL; + DWORD FileStart = 0; + const char lpBuffer[] = "This is a test file."; + DWORD bytesWritten; + BOOL bRc = TRUE; + + TheFile = CreateFile(fileName, + GENERIC_READ|GENERIC_WRITE, + FILE_SHARE_READ|FILE_SHARE_WRITE, + NULL, + CREATE_ALWAYS, + FILE_ATTRIBUTE_NORMAL, + NULL); + + if (TheFile == INVALID_HANDLE_VALUE) + { + Fail("ERROR: Could not open file '%s' with CreateFile. " + "GetLastError() returned %d.",fileName,GetLastError()); + } + + bRc = WriteFile(TheFile, + lpBuffer, + (DWORD)sizeof(lpBuffer), + &bytesWritten, + NULL); + + if(!bRc) + { + Trace("ERROR: Could not write to file '%s' with WriteFile.",fileName); + + if(CloseHandle(TheFile) == 0) + { + Fail("ERROR: CloseHandle failed to close the file."); + } + Fail(""); + + } + else if(bytesWritten != (DWORD)sizeof(lpBuffer)) + { + Trace("ERROR: Could not write the correct number of bytes to the " + "file '%s' with WriteFile.",fileName); + + if(CloseHandle(TheFile) == 0) + { + Fail("ERROR: CloseHandle failed to close the file."); + } + Fail(""); + } + + /* Lock the First 5 bytes of the File */ + + if(LockFile(TheFile, FileStart, 0, 5, 0) == 0) + { + Trace("ERROR: LockFile failed in Overlap test. " + "GetLastError returns %d.", + GetLastError()); + + if(CloseHandle(TheFile) == 0) + { + Fail("ERROR: CloseHandle failed to close the file."); + } + Fail(""); + } + + /* Lock from Byte 2 until 7 -- this overlaps and should return failure. */ + if(LockFile(TheFile,FileStart+2, 0, 5, 0) != 0) + { + Trace("ERROR: LockFile returned success when it was overlapped on " + "an already locked region of the file."); + + if(CloseHandle(TheFile) == 0) + { + Fail("ERROR: CloseHandle failed to close the file."); + } + Fail(""); + } + + /* Unlock the file */ + if(UnlockFile(TheFile, FileStart, 0, 5, 0) == 0) + { + Trace("ERROR: UnlockFile failed in Overlap test. GetLastError " + "returns %d.",GetLastError()); + + if(CloseHandle(TheFile) == 0) + { + Fail("ERROR: CloseHandle failed to close the file."); + } + Fail(""); + } + + /* Close the File */ + if(CloseHandle(TheFile) == 0) + { + Fail("ERROR: CloseHandle failed to close the file in the Overlap " + "test. GetLastError() returned %d.",GetLastError()); + } +} + +void FlagsTest(DWORD TheFlags, int ExpectedResult) +{ + HANDLE TheFile = NULL; + DWORD FileStart = 0; + int result; + + TheFile = CreateFile(fileName, + TheFlags, + FILE_SHARE_READ|FILE_SHARE_WRITE, + NULL, + OPEN_EXISTING, + FILE_ATTRIBUTE_NORMAL, + NULL); + + if (TheFile == INVALID_HANDLE_VALUE) + { + Fail("ERROR: Could not open file '%s' with CreateFile. " + "GetLastError() returned %d.",fileName,GetLastError()); + } + + /* Lock the First 5 bytes of the File. The result of this depends + upon which flags were set with the CreateFile. + */ + + result = LockFile(TheFile, FileStart, 0, 5, 0); + + /* If the expected result is 1, check to ensure the result is non-zero, + as non-zero is returned on success + */ + if(ExpectedResult == 1) + { + if(result == 0) + { + Trace("ERROR: LockFile returned zero when the expected result " + "was non-zero. It was passed the flag value %d.", + TheFlags); + + if(CloseHandle(TheFile) == 0) + { + Fail("ERROR: CloseHandle failed to close the file."); + } + Fail(""); + } + } + /* If the expected result is 0, check to ensure the result is 0 */ + else + { + if(result != 0) + { + Trace("ERROR: LockFile returned %d when the expected result " + "was zero. It was passed the flag value %d.", + result, TheFlags); + + if(CloseHandle(TheFile) == 0) + { + Fail("ERROR: CloseHandle failed to close the file."); + } + Fail(""); + } + } + + /* Only unlock the file if we expect it to be successfully locked */ + if(ExpectedResult) + { + if(UnlockFile(TheFile,FileStart,0, 5, 0) == 0) + { + Fail("ERROR: UnlockFile failed in the Flags Test. GetLastError() " + "returned %d.",GetLastError()); + + if(CloseHandle(TheFile) == 0) + { + Fail("ERROR: CloseHandle failed to close the file."); + } + Fail(""); + } + } + + /* Close the File */ + if(CloseHandle(TheFile) == 0) + { + Fail("ERROR: CloseHandle failed to close the file in the Flags " + "test. GetLastError() returned %d.",GetLastError()); + } +} + +int __cdecl main(int argc, char *argv[]) +{ + + if(0 != (PAL_Initialize(argc, argv))) + { + return FAIL; + } + + /* This test opens a file, then calls lock twice, overlapping the + regions and checking to ensure that this causes an error. + */ + OverlapTest(); + + /* Test that LockFile fails if no flags are set */ + FlagsTest(0,0); + + /* Test that LockFile passes if only GENERIC_READ is set */ + FlagsTest(GENERIC_READ,1); + + /* Test that LockFile passes if only GENERIC_WRITE is set */ + FlagsTest(GENERIC_WRITE,1); + + PAL_Terminate(); + return PASS; +} + |