Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!uunet!van-bc!root
From: lphillips@lpami.wimsey.bc.ca (Larry Phillips)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Process vs Task
Message-ID: <2400@van-bc.UUCP>
Date: 3 May 89 13:40:56 GMT
Sender: root@van-bc.UUCP
Lines: 95

In <439@becker.UUCP>, douglee@becker.UUCP (Doug Lee) writes:
>In article <6615@cbmvax.UUCP> andy@cbmvax.UUCP (Andy Finkel) writes:
>>There are only 20 CLI slots.  You can have as many processes as you have
>>memory for.

>Why only 20 CLI slots?? Will this restriction be eliminated in 1.4 (Yes
>I have had times when I wanted more).

Why indeed? Here's a present for you from A. Caleb Gattegno, a member in good
standing of DAS (Devil's Advocate Software).

------------- slash here -------------

begin 777 maxcli.zoo
M6D]/(#(N,#`@07)C:&EV92X:``#<I\3]*@```-;___\"``$````````!W*?$.
M_0(!!P$``'$```"5$2\1O%C(````E@````$```````````!M87AC;&D`4"A?G
MP`H6"@!_Z>X`````````````0"DC*````0`8,$^@08$##AH48#"#P80"`R!,V
MUY`%'@`$0/`02`"`B(T2`3AQ]4^'"P!GD`S)=Q".2%?]L*D`8J*-1Q,3R@T:"
M^8\/B"$L,(@X@B71%$,BL$5Q]H_?4!&\#/XC=X@G(A-520KB:4=$DY'^Q#BI!
M<W``.X,A`:35H'"@/(3J'I)Y,\<%FS1BY(21D^?AVX'KT"*4%Q#<I\3]`@&:8
M`@``3@$``&D2X&'0&*0!``!,`0```0```````````&UA>&-L:2YT>'0`"A8*>
M`'_3M0````````````!`*2,H``"1I`%AY@V;-7-8@$!31DX9$&GF@`@#HLZ<6
M,F;JL`'!)@T=.FP>UJ&3IB.=/"#HH`E#!\28,&Y`B'DXATZ=,6LFME3YD,X;2
M."#>F`&1YTT=.0IJAI%C$TZ+BW'JE'$SIHP+$""$A)F3YB4;-BCOK&SI$029E
M-V4D1H38$@[+,0PE4B3R9`H(.TO3A!$3,N6;B5_?W%%0M([?A6'LB`3J$X2,0
M&C5<=CPA\>=4G4&I6L4JI$S',HK9!I4#PLT;.@H+3W3(,4T;CV7(*&C\Q@U8T
MQS`JNB'3$(32W4O)@`CR^DP8NE.N@D@24TX=-V[2N#F3$DW$U$9!W"FY$4[#L
M-C"G@D3)YLU%!3%R"@4A)TP;A6)&^OXKEJ5R)):KKUUK$:/&PZH5=%!E\O'D_
MD`L*8`5"$6ZH\48>+"2H(%9!7#5$&"&)`<(1+-%1QAFF*1`0W*?$_0(`````$
M`````````````````````````````````````````````````````````````
"_(,`_
``
end

---------- chop here ---------------

  XREF _LVOOpenLibrary
  XREF _LVOAllocMem
  XREF _LVOCloseLibrary
  XREF _LVOForbid
  XREF _LVOPermit
MAXCLI  equ 255
  cseg
  move.l  4,a6   ; get execbase
  lea     DOS_lib,a1  ; get dosbase
  moveq.l #0,d0   ; version 0
  jsr     _LVOOpenLibrary(a6) ; and get it
  move.l  d0,a5   ; stick dosbase in an areg
  move.l  34(a5),a3  ; get ptr to RootNode
  move.l  (a3),d3   ; get BPTR to taskarray
  asl.l   #2,d3   ; turn into APTR
  move.l  d3,a4   ; move into an areg
  cmpi.l  #MAXCLI,(a4)  ; see if we've been run before
  beq     enditall  ; yes, so exit now!
  move.l  #1024,d0  ; set up to AllocMem 1k
  move.l  #$10000,d1  ; MEMF_CLEAR
  jsr     _LVOAllocMem(a6) ; get memory for new table
  move.l  d0,d7   ; save table addr somewhere
  beq     enditall  ; and exit if alloc failed
  jsr     _LVOForbid(a6)  ; do dirty deeds, so Forbid
  move.l  (a4)+,d6  ; get old max # CLI's
  movea.l d7,a1   ; get addr of new table
  addq.l  #4,a1   ; offset past max CLI element
  subq.l  #1,d6   ; make up for dbcc ending at -1
movetable:
  move.l  (a4)+,(a1)+  ; move entry in old table to new
  dbra    d6,movetable  ; and go on to next entry
  movea.l d7,a1   ; get new table addr
  move.l  #MAXCLI,(a1)  ; set new max # CLI's
  asr.l   #2,d7   ; turn table addr into BPTR
  move.l  d7,(a3)   ; put new BPTR in (RootNode)
  jsr     _LVOPermit(a6)  ; Permit now that we're done
enditall:
  move.l  a5,a1   ; put DOSBase in a1 for close
  jsr     _LVOCloseLibrary(a6) ; and close dos.library
  rts
  dseg

DOS_lib  dc.b 'dos.library',0

--------------

If you don't think 255 CLIs is enough, wait until you hear the layers library
screaming with pain when you are opening or closing #255. :-)

-larry

--
Frisbeetarianism: The belief that when you die, your soul goes up on
                  the roof and gets stuck.
+----------------------------------------------------------------------+ 
|   //   Larry Phillips                                                |
| \X/    lphillips@lpami.wimsey.bc.ca or uunet!van-bc!lpami!lphillips  |
|        COMPUSERVE: 76703,4322                                        |
+----------------------------------------------------------------------+