Article View: comp.os.os2.programmer
Article #3534Re: Does OS/2 support Shared Memory?
From: David Charlap
Date: Fri, 22 Jan 1993 17:21
Date: Fri, 22 Jan 1993 17:21
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1579 bytes
In article <C17Kwo.7E7@techbook.com> tonyb@techbook.com (Tony Bennett) writes:
>Unix has the concept of shared memory, that is multiple programs accessing a
>common area of memory. Does OS/2 support that concept and if so what functions
>are used... a little snippet of code using those functions would be
>very helpfull.
Well, I don't think there is a Unix-equivalent method for sharing
memory, but I know the following:
1) Multiple threads of one program share a common global data space.
So all static and global variables will be shared among multiple
threads in one application.
2) If a single .DLL is referenced by multiple applications at once, I
believe that it's static and global variables (maybe only the
exported ones...) are shared among the apps.
3) There may be a way to just allocate shared memory, but I don't
know.
--
|) 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!gatech!asuvax!cs.utexas.edu!sun-barr!rutgers!njitgw.njit.edu!hertz.njit.edu!dic5340 From: dic5340@hertz.njit.edu (David Charlap) Newsgroups: comp.os.os2.programmer Subject: Re: Does OS/2 support Shared Memory? Message-ID: <1993Jan22.172156.20934@njitgw.njit.edu> Date: 22 Jan 93 17:21:56 GMT References: <C17Kwo.7E7@techbook.com> Sender: news@njit.edu Organization: New Jersey Institute of Technology, Newark, N.J. Lines: 24 Nntp-Posting-Host: hertz.njit.edu