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Article #3579Re: Does OS/2 support Memory Mapped Files ?
From: Kai Uwe Rommel
Date: Sat, 23 Jan 1993 16:18
Date: Sat, 23 Jan 1993 16:18
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In article <1jo2g2INNs9e@neuro.usc.edu> merlin@neuro.usc.edu (merlin) writes: >Does OS/2 2.1 beta support memory mapped files for user processes? Not as far as I know. >I'd like to access a file of 3D brain map data as though it is one >large array in memory. I don't want to read those portions of the >file which I don't touch. If you are using C++, you could write a MemoryMappedArray class that overloads the array subscript [] operator (as well as the constructor/destructor for opening/closing the file) appropriately. You will not gain efficiency (that would require memory mapped file support in the kernl), but an easy programming interface. Kai Uwe Rommel -- /* Kai Uwe Rommel Muenchen, Germany * * rommel@jonas.gold.sub.org Phone +49 89 723 4101 * * rommel@informatik.tu-muenchen.de Fax +49 89 723 7889 */ DOS ... is still a real mode only non-reentrant interrupt handler, and always will be. -Russell Williams
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Path: arc1-ca.pugleaf.net!sparky!uunet!olivea!inews.Intel.COM!imutm1.de.intel.com!gold.sub.org!jonas.gold.sub.org!rommel From: rommel@jonas.gold.sub.org (Kai Uwe Rommel) Newsgroups: comp.os.os2.programmer Subject: Re: Does OS/2 support Memory Mapped Files ? Message-ID: <727805912rommel.root@jonas.gold.sub.org> Date: 23 Jan 93 16:18:32 GMT References: <C17Kwo.7E7@techbook.com> <1jo2g2INNs9e@neuro.usc.edu> Sender: root@jonas.gold.sub.org Organization: Private Lines: 24