Author: Dieter Buerssner
Date: 10:14:15 06/20/02
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On June 20, 2002 at 11:33:30, Robert Hyatt wrote: >On June 20, 2002 at 11:10:52, Louis Fagliano wrote: >>Besides, in a power failure don't most programs save the game? I know Rebel >>does because in one game someone accidently kicked the plug of my surge >>protector out of the socket and when I powered up and fired up Rebel, there was >>the game and score still there. I don't know if other programs do this because >>I don't want to power off my computer by unplugging it. >> > > > >Maybe or maybe not. If power fails while you are writing to the disk, that >file is going to be corrupted. Then you are screwed with no backup... On could get it practically fail safe, by having 2 different files. After any move, alternate overwriting one of those with the current move-list/PGN/whatever. The 10 msec or so overhead for each move would be totally unsignificant for typical time controls in "human-operates-on-a-real-board-tournaments". Of course, one could argue, that a power failure may corrupt your whole HD, but then probably typing in the moves manually is the least problem ... BTW, concerning UPS. The operator of Yace at the Leiden 2002 tournament told me, that in the game Isichess-Yace sombody walked over the cables and umplugged them. I guess, something like this can hardly be avoided in general. Regards, Dieter
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