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MacBinary | 1994-07-24 | 2.4 MB | [ONLN/HLX2] |
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This file was processed as: MacBinary
(archive/macBinary).
Confidence | Program | Detection | Match Type | Support
|
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10%
| dexvert
| MacBinary (archive/macBinary)
| fallback
| Supported |
100%
| file
| MacBinary II, inited, Fri Jan 21 07:12:07 1994, modified Sun Jul 24 14:36:14 1994, creator 'HLX2', type 'ONLN', 2466230 bytes "develop 5" , at 0x25a236 30756 bytes resource
| default (weak)
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99%
| file
| data
| default
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100%
| TrID
| MacBinary 2
| default (weak)
| |
100%
| siegfried
| fmt/1762 MacBinary (II)
| default
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100%
| lsar
| MacBinary
| default
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id metadata |
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key | value |
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macFileType | [ONLN] |
macFileCreator | [HLX2] |
hex view+--------+-------------------------+-------------------------+--------+--------+
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|00000840| 20 32 2c 20 49 73 73 75 | 65 20 31 20 20 20 54 68 | 2, Issu|e 1 Th|
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|00000890| 53 63 61 6e 6e 69 6e 67 | 20 66 72 6f 6d 20 50 72 |Scanning| from Pr|
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|00000ad0| 20 4c 69 73 70 20 64 65 | 76 65 6c 6f 70 6d 65 6e | Lisp de|velopmen|
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|00003ae0| 6f 6d 20 6d 61 63 68 69 | 6e 65 20 74 6f 20 6d 61 |om machi|ne to ma|
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|00003b50| 20 69 6d 70 6c 65 6d 65 | 6e 74 61 74 69 6f 6e 20 | impleme|ntation |
|00003b60| 70 72 6f 76 69 64 65 73 | 20 65 78 61 6d 70 6c 65 |provides| example|
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|00003b90| 49 6e 76 6f 6b 65 20 6e | 65 74 77 6f 72 6b 20 6f |Invoke n|etwork o|
|00003ba0| 70 65 72 61 74 69 6f 6e | 73 20 61 73 79 6e 63 68 |peration|s asynch|
|00003bb0| 72 6f 6e 6f 75 73 6c 79 | 2e 0d a5 20 55 73 65 20 |ronously|... Use |
|00003bc0| 61 6e 20 61 62 73 74 72 | 61 63 74 20 73 75 70 65 |an abstr|act supe|
|00003bd0| 72 63 6c 61 73 73 20 74 | 6f 20 73 69 6d 70 6c 69 |rclass t|o simpli|
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|00003c00| 50 20 61 6e 64 20 41 44 | 53 50 2e 0d a5 20 4f 70 |P and AD|SP... Op|
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|00003c70| 63 65 6e 74 72 61 6c 20 | 63 6f 6e 74 72 6f 6c 20 |central |control |
|00003c80| 6f 72 20 63 6f 6f 72 64 | 69 6e 61 74 69 6f 6e 2e |or coord|ination.|
|00003c90| 0d 54 68 69 73 20 61 72 | 74 69 63 6c 65 20 64 65 |.This ar|ticle de|
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|00003cc0| 68 65 20 66 69 72 73 74 | 20 74 77 6f 20 6f 66 20 |he first| two of |
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|00003d30| 68 65 20 73 6f 75 72 63 | 65 20 63 6f 64 65 20 6f |he sourc|e code o|
|00003d40| 66 20 4c 41 43 53 20 28 | 70 72 6f 76 69 64 65 64 |f LACS (|provided|
|00003d50| 20 6f 6e 20 74 68 65 20 | 44 65 76 65 6c 6f 70 65 | on the |Develope|
|00003d60| 72 20 45 73 73 65 6e 74 | 69 61 6c 73 20 64 69 73 |r Essent|ials dis|
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|00003d80| 6e 63 6f 76 65 72 20 6d | 6f 72 65 20 64 65 74 61 |ncover m|ore deta|
|00003d90| 69 6c 73 2e 0d 54 48 45 | 20 4c 49 47 48 54 57 45 |ils..THE| LIGHTWE|
|00003da0| 49 47 48 54 20 41 53 59 | 4e 43 48 52 4f 4e 4f 55 |IGHT ASY|NCHRONOU|
|00003db0| 53 20 43 4f 4e 46 45 52 | 45 4e 43 49 4e 47 20 53 |S CONFER|ENCING S|
|00003dc0| 59 53 54 45 4d 20 28 4c | 41 43 53 29 20 41 50 50 |YSTEM (L|ACS) APP|
|00003dd0| 4c 49 43 41 54 49 4f 4e | 0d 4c 41 43 53 20 73 70 |LICATION|.LACS sp|
|00003de0| 72 65 61 64 73 20 6d 65 | 73 73 61 67 65 73 20 66 |reads me|ssages f|
|00003df0| 72 6f 6d 20 6d 61 63 68 | 69 6e 65 20 74 6f 20 6d |rom mach|ine to m|
|00003e00| 61 63 68 69 6e 65 20 61 | 63 72 6f 73 73 20 74 68 |achine a|cross th|
|00003e10| 65 20 6c 6f 63 61 6c 20 | 6e 65 74 77 6f 72 6b 2e |e local |network.|
|00003e20| 20 49 74 20 69 73 20 64 | 65 73 69 67 6e 65 64 20 | It is d|esigned |
|00003e30| 74 6f 20 72 75 6e 20 69 | 6e 20 74 68 65 20 62 61 |to run i|n the ba|
|00003e40| 63 6b 67 72 6f 75 6e 64 | 20 75 6e 64 65 72 20 4d |ckground| under M|
|00003e50| 75 6c 74 69 46 69 6e 64 | 65 72 20 61 6e 64 20 63 |ultiFind|er and c|
|00003e60| 6f 6d 6d 75 6e 69 63 61 | 74 65 20 71 75 69 65 74 |ommunica|te quiet|
|00003e70| 6c 79 20 77 69 74 68 20 | 6f 74 68 65 72 20 6d 61 |ly with |other ma|
|00003e80| 63 68 69 6e 65 73 2e 20 | 49 74 20 75 73 65 73 20 |chines. |It uses |
|00003e90| 74 68 65 20 41 70 70 6c | 65 54 61 6c 6b 20 4e 61 |the Appl|eTalk Na|
|00003ea0| 6d 65 20 42 69 6e 64 69 | 6e 67 20 50 72 6f 74 6f |me Bindi|ng Proto|
|00003eb0| 63 6f 6c 20 28 4e 42 50 | 29 20 74 6f 20 0d 66 69 |col (NBP|) to .fi|
|00003ec0| 6e 64 20 6f 74 68 65 72 | 20 6d 61 63 68 69 6e 65 |nd other| machine|
|00003ed0| 73 20 74 6f 20 63 6f 6d | 6d 75 6e 69 63 61 74 65 |s to com|municate|
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|00003f00| 20 44 61 74 61 20 53 74 | 72 65 61 6d 20 50 72 6f | Data St|ream Pro|
|00003f10| 74 6f 63 6f 6c 20 28 41 | 44 53 50 29 20 74 6f 20 |tocol (A|DSP) to |
|00003f20| 61 63 74 75 61 6c 6c 79 | 20 65 78 63 68 61 6e 67 |actually| exchang|
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|00003f40| 20 6e 65 77 20 6d 65 73 | 73 61 67 65 73 20 63 6f | new mes|sages co|
|00003f50| 6d 65 20 69 6e 2c 20 74 | 68 65 20 4e 6f 74 69 66 |me in, t|he Notif|
|00003f60| 69 63 61 74 69 6f 6e 20 | 4d 61 6e 61 67 65 72 20 |ication |Manager |
|00003f70| 69 73 20 75 73 65 64 20 | 74 6f 20 61 6c 65 72 74 |is used |to alert|
|00003f80| 20 74 68 65 20 75 73 65 | 72 2e 0d 4c 41 43 53 20 | the use|r..LACS |
|00003f90| 69 73 20 77 72 69 74 74 | 65 6e 20 69 6e 20 4f 62 |is writt|en in Ob|
|00003fa0| 6a 65 63 74 20 50 61 73 | 63 61 6c 20 75 73 69 6e |ject Pas|cal usin|
|00003fb0| 67 20 4d 61 63 41 70 70 | a8 2e 20 49 74 20 75 73 |g MacApp|.. It us|
|00003fc0| 65 73 20 6f 62 6a 65 63 | 74 2d 6f 72 69 65 6e 74 |es objec|t-orient|
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|00003ff0| 6f 62 6c 65 6d 20 6f 66 | 20 69 6d 70 6c 65 6d 65 |oblem of| impleme|
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|00004010| 73 79 6e 63 68 72 6f 6e | 6f 75 73 20 66 75 6e 63 |synchron|ous func|
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|00004040| 65 73 20 61 6e 20 61 62 | 73 74 72 61 63 74 20 73 |es an ab|stract s|
|00004050| 75 70 65 72 63 6c 61 73 | 73 20 74 68 61 74 20 70 |uperclas|s that p|
|00004060| 72 6f 76 69 64 65 73 20 | 61 20 66 72 61 6d 65 77 |rovides |a framew|
|00004070| 6f 72 6b 20 66 6f 72 20 | 6f 74 68 65 72 20 63 6c |ork for |other cl|
|00004080| 61 73 73 65 73 20 6f 66 | 20 74 68 65 20 73 61 6d |asses of| the sam|
|00004090| 65 20 74 79 70 65 2e 0d | 46 72 6f 6d 20 74 68 65 |e type..|From the|
|000040a0| 20 75 73 65 72 d5 73 20 | 70 6f 69 6e 74 20 6f 66 | user.s |point of|
|000040b0| 20 76 69 65 77 2c 20 74 | 68 65 20 61 70 70 6c 69 | view, t|he appli|
|000040c0| 63 61 74 69 6f 6e 20 63 | 6f 6e 73 69 73 74 73 20 |cation c|onsists |
|000040d0| 6f 66 20 74 68 72 65 65 | 20 77 69 6e 64 6f 77 73 |of three| windows|
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|000040f0| 4d 65 73 73 61 67 65 2c | 20 61 6e 64 20 53 74 61 |Message,| and Sta|
|00004100| 74 75 73 2e 20 46 69 67 | 75 72 65 20 31 20 73 68 |tus. Fig|ure 1 sh|
|00004110| 6f 77 73 20 74 68 65 73 | 65 20 74 68 72 65 65 20 |ows thes|e three |
|00004120| 77 69 6e 64 6f 77 73 2e | 20 54 6f 20 63 72 65 61 |windows.| To crea|
|00004130| 74 65 20 61 20 6e 65 77 | 20 6d 65 73 73 61 67 65 |te a new| message|
|00004140| 2c 20 74 68 65 20 75 73 | 65 72 20 73 69 6d 70 6c |, the us|er simpl|
|00004150| 79 20 74 79 70 65 73 20 | 69 6e 20 74 68 65 20 4e |y types |in the N|
|00004160| 65 77 20 4d 65 73 73 61 | 67 65 20 77 69 6e 64 6f |ew Messa|ge windo|
|00004170| 77 20 61 6e 64 20 63 6c | 69 63 6b 73 20 74 68 65 |w and cl|icks the|
|00004180| 20 53 65 6e 64 20 4d 65 | 73 73 61 67 65 20 62 75 | Send Me|ssage bu|
|00004190| 74 74 6f 6e 2e 20 54 68 | 65 20 6d 65 73 73 61 67 |tton. Th|e messag|
|000041a0| 65 20 63 61 6e 20 62 65 | 20 61 6e 79 20 74 65 78 |e can be| any tex|
|000041b0| 74 20 74 68 65 20 75 73 | 65 72 20 77 61 6e 74 73 |t the us|er wants|
|000041c0| d1 62 75 74 20 6e 6f 20 | 70 69 63 74 75 72 65 73 |.but no |pictures|
|000041d0| 20 6f 72 20 67 72 61 70 | 68 69 63 73 20 69 6e 20 | or grap|hics in |
|000041e0| 74 68 69 73 20 65 64 69 | 74 69 6f 6e 2e 20 54 68 |this edi|tion. Th|
|000041f0| 65 20 61 70 70 6c 69 63 | 61 74 69 6f 6e 20 74 68 |e applic|ation th|
|00004200| 65 6e 20 73 70 72 65 61 | 64 73 20 74 68 65 20 6d |en sprea|ds the m|
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|00004220| 6c 6f 63 61 6c 6c 79 20 | 63 6f 6e 6e 65 63 74 65 |locally |connecte|
|00004230| 64 20 4d 61 63 69 6e 74 | 6f 73 68 20 63 6f 6d 70 |d Macint|osh comp|
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|00004250| 77 20 6d 65 73 73 61 67 | 65 20 61 72 72 69 76 65 |w messag|e arrive|
|00004260| 73 20 66 72 6f 6d 20 61 | 6e 6f 74 68 65 72 20 6d |s from a|nother m|
|00004270| 61 63 68 69 6e 65 2c 20 | 69 74 20 61 70 70 65 61 |achine, |it appea|
|00004280| 72 73 20 69 6e 20 74 68 | 65 20 4d 65 73 73 61 67 |rs in th|e Messag|
|00004290| 65 73 20 77 69 6e 64 6f | 77 20 6f 6e 20 74 68 61 |es windo|w on tha|
|000042a0| 74 20 6d 61 63 68 69 6e | 65 2e 20 54 68 65 20 4d |t machin|e. The M|
|000042b0| 65 73 73 61 67 65 73 0d | 0d 46 69 67 75 72 65 20 |essages.|.Figure |
|000042c0| 31 0d 4c 41 43 53 20 55 | 73 65 72 20 49 6e 74 65 |1.LACS U|ser Inte|
|000042d0| 72 66 61 63 65 0d 77 69 | 6e 64 6f 77 20 64 69 73 |rface.wi|ndow dis|
|000042e0| 70 6c 61 79 73 20 74 77 | 6f 20 6c 69 73 74 73 20 |plays tw|o lists |
|000042f0| 6f 66 20 6d 65 73 73 61 | 67 65 73 2c 20 6f 6e 65 |of messa|ges, one|
|00004300| 20 66 6f 72 20 74 68 6f | 73 65 20 77 68 69 63 68 | for tho|se which|
|00004310| 20 68 61 76 65 20 79 65 | 74 20 74 6f 20 62 65 20 | have ye|t to be |
|00004320| 72 65 61 64 20 61 6e 64 | 20 6f 6e 65 20 66 6f 72 |read and| one for|
|00004330| 20 74 68 6f 73 65 20 77 | 68 69 63 68 20 74 68 65 | those w|hich the|
|00004340| 20 75 73 65 72 20 68 61 | 73 20 61 6c 72 65 61 64 | user ha|s alread|
|00004350| 79 20 72 65 61 64 20 61 | 74 20 6c 65 61 73 74 20 |y read a|t least |
|00004360| 6f 6e 63 65 2e 20 4f 6e | 6c 79 20 74 68 65 20 66 |once. On|ly the f|
|00004370| 69 72 73 74 20 66 65 77 | 20 77 6f 72 64 73 20 6f |irst few| words o|
|00004380| 66 20 65 61 63 68 20 6d | 65 73 73 61 67 65 20 61 |f each m|essage a|
|00004390| 70 70 65 61 72 20 69 6e | 20 74 68 65 20 72 65 61 |ppear in| the rea|
|000043a0| 64 20 6f 72 20 75 6e 72 | 65 61 64 20 6c 69 73 74 |d or unr|ead list|
|000043b0| 2e 20 57 68 65 6e 20 74 | 68 65 20 75 73 65 72 20 |. When t|he user |
|000043c0| 63 6c 69 63 6b 73 20 6f | 6e 20 61 6e 20 65 6e 74 |clicks o|n an ent|
|000043d0| 72 79 20 69 6e 20 6f 6e | 65 20 6f 66 20 74 68 65 |ry in on|e of the|
|000043e0| 20 6c 69 73 74 73 2c 20 | 74 68 65 20 66 75 6c 6c | lists, |the full|
|000043f0| 20 74 65 78 74 20 6f 66 | 20 74 68 65 20 6d 65 73 | text of| the mes|
|00004400| 73 61 67 65 20 61 70 70 | 65 61 72 73 20 69 6e 20 |sage app|ears in |
|00004410| 61 20 74 68 69 72 64 20 | 73 65 63 74 69 6f 6e 20 |a third |section |
|00004420| 6f 66 20 74 68 65 20 77 | 69 6e 64 6f 77 2e 20 54 |of the w|indow. T|
|00004430| 68 65 20 53 74 61 74 75 | 73 20 77 69 6e 64 6f 77 |he Statu|s window|
|00004440| 20 63 6f 6e 74 61 69 6e | 73 20 69 6e 66 6f 72 6d | contain|s inform|
|00004450| 61 74 69 6f 6e 20 61 62 | 6f 75 74 20 68 6f 77 20 |ation ab|out how |
|00004460| 6d 61 6e 79 20 6d 65 73 | 73 61 67 65 73 20 68 61 |many mes|sages ha|
|00004470| 76 65 20 62 65 65 6e 20 | 73 65 65 6e 2c 20 77 68 |ve been |seen, wh|
|00004480| 61 74 20 6f 74 68 65 72 | 20 6d 61 63 68 69 6e 65 |at other| machine|
|00004490| 73 20 61 72 65 20 61 63 | 74 69 76 65 6c 79 20 63 |s are ac|tively c|
|000044a0| 6f 6d 6d 75 6e 69 63 61 | 74 69 6e 67 2c 20 61 6e |ommunica|ting, an|
|000044b0| 64 20 73 6f 20 6f 6e 2e | 0d 54 68 65 72 65 20 69 |d so on.|.There i|
|000044c0| 73 20 6d 6f 72 65 20 74 | 6f 20 74 68 65 20 70 72 |s more t|o the pr|
|000044d0| 6f 67 72 61 6d 20 74 68 | 61 6e 20 69 73 20 63 6f |ogram th|an is co|
|000044e0| 76 65 72 65 64 20 69 6e | 20 74 68 69 73 20 62 72 |vered in| this br|
|000044f0| 69 65 66 20 64 65 73 63 | 72 69 70 74 69 6f 6e 3b |ief desc|ription;|
|00004500| 20 66 6f 72 20 65 78 61 | 6d 70 6c 65 2c 20 75 73 | for exa|mple, us|
|00004510| 65 72 73 20 63 61 6e 20 | 73 65 74 20 65 78 70 69 |ers can |set expi|
|00004520| 72 61 74 69 6f 6e 20 64 | 61 74 65 73 20 66 6f 72 |ration d|ates for|
|00004530| 20 74 68 65 20 6d 65 73 | 73 61 67 65 73 20 74 68 | the mes|sages th|
|00004540| 65 79 20 63 72 65 61 74 | 65 2e 20 59 6f 75 20 6d |ey creat|e. You m|
|00004550| 69 67 68 74 20 77 61 6e | 74 20 74 6f 20 0d 72 75 |ight wan|t to .ru|
|00004560| 6e 20 4c 41 43 53 20 74 | 6f 20 65 78 70 65 72 69 |n LACS t|o experi|
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|000061e0| 61 73 79 6e 63 68 72 6f | 6e 6f 75 73 20 6f 70 65 |asynchro|nous ope|
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|00006320| 65 74 65 20 73 75 62 63 | 6c 61 73 73 65 73 20 6f |ete subc|lasses o|
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|000063f0| 6f 6b 73 20 6c 69 6b 65 | 20 74 68 69 73 3a 0d 50 |oks like| this:.P|
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