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AX = 1010h CX = 0000h
Return:
CX = free space 0000h if no physical space left on the drive else there is still space available
Notes: This private function is internally called by the FDOS part of the OS kernel on "out of disk space" conditions. It allows optimized behaviour of DELWATCH delete tracking software in conjunction with disk compression, and was implemented for SuperStor (but it would also work with other disk compression if they hook this function). If there truly is no physical space left on the drive, the FDOS asks DELWATCH to purge files in its queue until enough space has been freed, or there actually is no free disk space any more.. By using the INT 2F/AX=1001h FDOS hook, the call can be intercepted by external system components such as SuperStor, bundled with DR DOS "Panther" and Novell DOS 7 BETAs.. This function must under no circumstances be called by applications!
See Also: INT 2F/AX=1001h - AX=10FEh
Category: Disk I/O Enhancements - Int 2Fh - N
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