FastMM Code

Added security options ClearMemoryBeforeReturningToOS and AlwaysClearFreedMemory to force the clearing of memory blocks after being freed. In some situations this may provide some protection against information theft, but at a significant performance penalty.

Fixed a missing "}" typo in FastMM4Options.inc. (Thanks to Tim Frost.)

Added the FullDebugModeCallBacks define which adds support for memory manager event callbacks. This allows the application to be notified of memory allocations, frees and reallocations as they occur. (Thanks to Jeroen Pluimers.)

Updated the simplified Chinese translation of FastMM4Options.inc. (Thanks to QianYuan Wang.)

Change to borlandmm.dpr to explicitly include FastMM4Message.pas. (Thanks to Mark Edington.)

Fixed a Delphi 5 compilation error.

Fixed an ambiguous overloaded function issue in the C++ Builder support code.

Added the UseSwitchToThread option. Set this option to call SwitchToThread instead of sitting in a "busy waiting" loop when a thread contention occurs. This is used in conjunction with the NeverSleepOnThreadContention option, and has no effect unless NeverSleepOnThreadContention is also defined. This option may improve performance with many CPU cores and/or threads of different priorities. Note that the SwitchToThread API call is only available on Windows 2000 and later. (Thanks to Zach Saw.)

Fixed a crash bug (that crept in in 4.96) that may manifest itself when resizing a block to 4 bytes or less.

Bumped the build number of FastMM_FullDebugMode.dll. (Thanks to Hanspeter Widmer for his assistance in dealing with the FullDebugMode crash on shutdown issue under Windows XP.)