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From: jack@csccat.UUCP (Jack Hudler)
Newsgroups: comp.sys.ibm.pc,comp.sys.amiga
Subject: Re: OS/2 vs AmigaDOS
Keywords: Operating Systems, Religion WRT computers
Message-ID: <2762@csccat.UUCP>
Date: 13 May 89 16:50:59 GMT
References: <2134@iitmax.IIT.EDU> <5625@microsoft.UUCP> <917@mks.UUCP> <9616@watcgl.waterloo.edu> <925@mks.UUCP>
Reply-To: jack@csccat.UUCP (Jack Hudler)
Organization: Computer Support Corporation. Dallas,Texas
Lines: 39

In article <925@mks.UUCP> alex@mks.UUCP (Alex White) writes:
>In article <9616@watcgl.waterloo.edu> bmacintyre@watcgl.waterloo.edu (Blair MacIntyre) writes:
>>In article <917@mks.UUCP> alex@mks.UUCP (Alex White) writes:
>>>In article <5625@microsoft.UUCP> w-glenns@microsoft.UUCP (Glenn Steffler) writes:
>>>>OS/2 is a business oriented OS, with extensive network capabilities, in
>>>>addition to a rich and quite overwhelming array of multitasking
>>>>primatives.  OS/2 has memory, and resource protection, vital for multiple
>>>Overwhelming array of multitasking primitives?
>>>You've got to be kidding.
>>>You're right -- it has more than are ever likely to be needed, but
>>>it doesn't have standard simple ones like fork().
>>
>>I hate to disappoint you, but fork() is not what most people would
>>consider a "standard multitasking primitive".  It is a Unix'ism designed
>
>Great.
>Ok, how do I do it without fork?
>DosExecPgm has a lot of options, but it doesn't have an array of
>open file descriptors to pass to the child.  You have to go to grotesque
>contortions of dup'ing and moving file descriptors around, setting close-
>on-exec bits in order to set the child's file descriptors up the way you
>want. (You CAN however do it)
>It doesn't have an array of signal settings to set up default signals
>for the child. (You CAN'T do this properly)

	Perhaps you need to redefine your concept of multitasking?
	The implementation of multi-tasking under OS/2 is the 
	'thread', it very powerful, provided you alter your concept.
	Our PM app uses threads, and I must say it was more difficult
	to implement our app using 'fork', however
	it does work using this primitive form of multitasking.

					Jack

-- 
Classic Quotes from STNG: "Pen Pals"
Picard: Her society is aware .. that there is intersteller life?
Data:   No Sir.
Picard: Oooops..