Gp* Update

Months have passed since the last update of my freeware utils so here are new versions...

DSiWin32 1.29

• Added functions DSiIsAdmin, DSiMoveFile, DSiMoveOnReboot, and DSiGetThreadTimes (two overloaded versions).
• TDSiTimer properties changed from published to public.  

GpHugeFile 5.04a

• GetFileSize Win32 call was incorrectly raising exception when file was $FFFFFFFF bytes long.
  (read more: A Case of Mysterious SUnkOSError)
• SetFilePointer Win32 call was incorrectly raising exception when position was set to $FFFFFFFF absolute.
• Added TGpHugeFileStream.Flush method.
• Added a way to disable buffering on the fly in both TGpHugeFile and TGpHugeFileStream.
• Added bunch of missing Win32Check checks.
• Better error reporting when application tries to read/write <= 0 bytes.
• Added optional logging of all Win32 calls to the TGpHugeFile (enabled with /dLogWin32Calls).
• Added thread concurrency debugging support to TGpHugeFileStream when compiled with /dDEBUG.
• Don't call MsgWait... in Close if file access is not asynchronous as that causes havoc with MS thread pool execution.

GpLists 1.29

• Added TStringList helper.
• Use spinlock for locking. Spinlock implementation kindly provided by Lee_Nover.
• TGpObjectRingBuffer can put locks around all operations.
• TGpObjectRingBuffer can trigger an event when buffer is fuller than the specified threshold and another event when buffer is emptier than the (different) threshold.
• Added missing locks to TGpDoublyLinkedList in multithreaded mode.
• Disallow Move and Insert operations on sorted lists.
• Added bunch of 'inline' directives. 

GpSharedMemory 4.11a

• AllocateHwnd and DeallocateHwnd replaced with thread-safe versions. 
  (read more: AllocateHwnd is not Thread-Safe)
• TTimer replaced with thread-safer TDSiTimer.

GpStreams 1.13

Interesting things have been going on in the GpStreams unit. TGpBufferedStream class is a stream wrapper which provid read-buffering on any stream. TGpScatteredStream is a stream that provides contiguous access to a scattered data. I plan to write an article on its use soon.

• Implemented TGpScatteredStream class.
• Added TGpBufferedStream class. At the moment, only reading is buffered while writing is implemented as a pass-through operation.
• Added AutoDestroyWrappedStream property to the TGpStreamWindow class.
• Check for < 0 position in TGpStreamWindow.Seek.
• Fixed reading/writing of zero bytes in TGpStreamWindow.
• Added bunch of 'inline' directives.

GpStuff 1.06

• ReverseCardinal renamed to ReverseDWord.
• Added function ReverseWord.

Previous updates: New GpLists and other updates