private static IntPtr CreateFileMapping(string name, int size, bool writable)
{
IntPtr intPtr = IntPtr.Zero;
IntPtr intPtr2 = IntPtr.Zero;
int flProtect;
if (writable)
{
flProtect = 4;
}
else
{
flProtect = 2;
}
IntPtr result;
try
{
intPtr = FileMapping.GetSecurityDescriptor(name);
FileMapping.SECURITY_ATTRIBUTES security_ATTRIBUTES = new FileMapping.SECURITY_ATTRIBUTES();
security_ATTRIBUTES.SecurityDescriptor = intPtr;
security_ATTRIBUTES.InheritHandle = false;
intPtr2 = FileMapping.CreateFileMapping((IntPtr)(-1), security_ATTRIBUTES, flProtect, 0, size, name);
if (intPtr2 == IntPtr.Zero)
{
throw new Win32Exception(Marshal.GetLastWin32Error(), "Could not create file mapping where file mapping name is : " + name);
}
result = intPtr2;
}
finally
{
if (intPtr != IntPtr.Zero)
{
FileMapping.LocalFree(intPtr);
}
}
return(result);
}
internal static extern IntPtr CreateFileMapping(IntPtr hFile, FileMapping.SECURITY_ATTRIBUTES lpFileMappingAttributes, int flProtect, int dwMaximumSizeHigh, int dwMaximumSizeLow, string lpName);
