Article View: comp.os.os2.programmer
Article #2849Re: How do I flush disk buffer?
From: David Charlap
Date: Tue, 15 Dec 1992 01:54
Date: Tue, 15 Dec 1992 01:54
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In article <92349.025025DLVGC@CUNYVM.BITNET> DLVGC@CUNYVM.BITNET (Dimitri Vulis) writes: >I've had a similar problem (keeping the log file in the event the power >goes off) and simply calling fflush(fptr) after every fprintf seems to >commit the data to disk right away. (Including writing over a LAN Server >to a networked disk). I even wrote a little function wrlog using stdargs >that first passes its args to fprintf(logfptr, then fflush(logfpr)'s. > >Of course, fflush _may_ work differently under gcc (I tried this with >both icc and ms c 6.0) If you use OS/2 calls (like DosOpen, DosWrite, DosClose) instead of C library calls (like fopen, fwrite, fclose), you'll notice an option on DosOpen which tells the system not to cache the file handle. This may do what you want it to. -- |) David Charlap | .signature confiscated by FBI due to /|_ dic5340@hertz.njit.edu | an ongoing investigation into the ((|,) | source of these .signature virusses ~|~
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Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!uwm.edu!rutgers!njitgw.njit.edu!hertz.njit.edu!dic5340 From: dic5340@hertz.njit.edu (David Charlap) Newsgroups: comp.os.os2.programmer Subject: Re: How do I flush disk buffer? Message-ID: <1992Dec15.015458.15556@njitgw.njit.edu> Date: 15 Dec 92 01:54:58 GMT References: <1992Dec3.012008.27192@networx.com> <92349.025025DLVGC@CUNYVM.BITNET> Sender: news@njit.edu Organization: New Jersey Institute of Technology, Newark, N.J. Lines: 22 Nntp-Posting-Host: hertz.njit.edu