1 files changed, 94 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/filemapping_memmgt/LockFile/test2/test2.cpp b/src/pal/tests/palsuite/filemapping_memmgt/LockFile/test2/test2.cpp
new file mode 100644
index 0000000000..8aef130ef4
--- /dev/null
+++ b/src/pal/tests/palsuite/filemapping_memmgt/LockFile/test2/test2.cpp
@@ -0,0 +1,94 @@
+// 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: test2.c
+**
+** Purpose: Open a file, and lock it from start to EOF.  Check to ensure
+** the current process can still read and write from/to the file.
+**
+**
+**============================================================*/
+
+#include <palsuite.h>
+#include "../LockFile.h"
+
+#define FILENAME "testfile.txt"
+
+int __cdecl main(int argc, char *argv[])
+{
+    
+    HANDLE TheFile = NULL;
+    DWORD FileStart = 0;
+    DWORD FileEnd = 0;
+    DWORD BytesWritten = 0;
+    DWORD BytesRead = 0;
+    char WriteBuffer[] = "This is some test data.";
+    char DataBuffer[128];
+
+    if(0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+
+    /* Call the helper function to Create a file, write 'WriteBuffer' to
+       the file, and lock the file.
+    */
+
+    FileEnd = strlen(WriteBuffer);
+    TheFile = CreateAndLockFile(TheFile, FILENAME, WriteBuffer, 
+                                FileStart, FileEnd);
+       
+    /* Move the file pointer to the start of the file */
+    if(SetFilePointer(TheFile, 0, NULL, FILE_BEGIN) != 0)
+    {
+        Fail("ERROR: SetFilePointer failed to move the file pointer back "
+             "to the start of the file.");
+    }
+    
+    /* Attempt to Read 5 bytes from this file.  Since the lock does not
+       affect the calling process, this should succeed.
+    */
+    
+    if(ReadFile(TheFile, DataBuffer, 5, &BytesRead, NULL) == 0)
+    {
+        Fail("ERROR: ReadFile has failed.  Attempted to read in 5 bytes from "
+             "the file '%s' after it had LockFile called upon it, but within "
+             "the same process.",FILENAME);
+    }
+
+    if(strncmp(DataBuffer, WriteBuffer, 5) != 0)
+    {
+        Fail("ERROR: The data read in from ReadFile is not what should have "
+             "been written in the file. '%s' ",DataBuffer);
+    }
+
+    /* Attempt to Write 5 bytes to this file.  Since the lock does not affect
+       the calling process, this should succeed.
+    */
+
+    memset(WriteBuffer, 'X', strlen(WriteBuffer));
+
+    if(WriteFile(TheFile, WriteBuffer, 5,&BytesWritten, NULL) == 0)
+    {
+        Fail("ERROR: WriteFile has failed.  Attempted to write 5 bytes to "
+             "the file '%s' after it had LockFile called upon it, but within "
+             "the same process.",FILENAME);
+    }
+
+    if(UnlockFile(TheFile, FileStart, 0, FileEnd, 0) == 0)
+    {
+        Fail("ERROR: UnlockFile failed.  GetLastError returns %d.",
+             GetLastError());
+    }
+    
+    if(CloseHandle(TheFile) == 0)
+    {
+        Fail("ERROR: CloseHandle failed to close the file.");
+    }
+  
+    PAL_Terminate();
+    return PASS;
+}