/ Usenet 1994 January / usenetsourcesnewsgroupsinfomagicjanuary1994.iso / sources / std_unix / v21 / 190

< prev

next >

MacOS 8.1

Win98

DOS

browse contents

view JSON data

view as text

+--------+-------------------------+-------------------------+--------+--------+
|00000000| 46 72 6f 6d 20 73 74 64 | 2d 75 6e 69 78 2d 72 65 |From std|-unix-re|
|00000010| 71 75 65 73 74 40 75 75 | 6e 65 74 2e 75 75 2e 6e |quest@uu|net.uu.n|
|00000020| 65 74 20 20 54 75 65 20 | 4f 63 74 20 20 39 20 32 |et  Tue |Oct  9 2|
|00000030| 31 3a 33 34 3a 30 33 20 | 31 39 39 30 0a 52 65 63 |1:34:03 |1990.Rec|
|00000040| 65 69 76 65 64 3a 20 66 | 72 6f 6d 20 63 73 2e 75 |eived: f|rom cs.u|
|00000050| 74 65 78 61 73 2e 65 64 | 75 20 62 79 20 75 75 6e |texas.ed|u by uun|
|00000060| 65 74 2e 75 75 2e 6e 65 | 74 20 28 35 2e 36 31 2f |et.uu.ne|t (5.61/|
|00000070| 31 2e 31 34 29 20 77 69 | 74 68 20 53 4d 54 50 20 |1.14) wi|th SMTP |
|00000080| 0a 09 69 64 20 41 41 31 | 39 30 38 37 3b 20 54 75 |..id AA1|9087; Tu|
|00000090| 65 2c 20 39 20 4f 63 74 | 20 39 30 20 32 31 3a 33 |e, 9 Oct| 90 21:3|
|000000a0| 34 3a 30 33 20 2d 30 34 | 30 30 0a 50 6f 73 74 65 |4:03 -04|00.Poste|
|000000b0| 64 2d 44 61 74 65 3a 20 | 38 20 4f 63 74 20 39 30 |d-Date: |8 Oct 90|
|000000c0| 20 30 34 3a 30 34 3a 31 | 32 20 47 4d 54 0a 52 65 | 04:04:1|2 GMT.Re|
|000000d0| 63 65 69 76 65 64 3a 20 | 62 79 20 63 73 2e 75 74 |ceived: |by cs.ut|
|000000e0| 65 78 61 73 2e 65 64 75 | 20 28 35 2e 36 34 2f 31 |exas.edu| (5.64/1|
|000000f0| 2e 37 37 29 20 0a 46 72 | 6f 6d 3a 20 6f 6b 40 67 |.77) .Fr|om: ok@g|
|00000100| 6f 61 6e 6e 61 2e 63 73 | 2e 72 6d 69 74 2e 4f 5a |oanna.cs|.rmit.OZ|
|00000110| 2e 41 55 20 28 52 69 63 | 68 61 72 64 20 41 2e 20 |.AU (Ric|hard A. |
|00000120| 4f 27 4b 65 65 66 65 29 | 0a 4e 65 77 73 67 72 6f |O'Keefe)|.Newsgro|
|00000130| 75 70 73 3a 20 63 6f 6d | 70 2e 73 74 64 2e 75 6e |ups: com|p.std.un|
|00000140| 69 78 0a 53 75 62 6a 65 | 63 74 3a 20 52 65 3a 20 |ix.Subje|ct: Re: |
|00000150| 55 6e 69 66 69 65 64 20 | 49 2f 4f 20 6e 61 6d 65 |Unified |I/O name|
|00000160| 73 70 61 63 65 3a 20 77 | 68 61 74 27 73 20 74 68 |space: w|hat's th|
|00000170| 65 20 70 6f 69 6e 74 3f | 0a 4d 65 73 73 61 67 65 |e point?|.Message|
|00000180| 2d 49 64 3a 20 3c 31 33 | 33 34 33 40 63 73 2e 75 |-Id: <13|343@cs.u|
|00000190| 74 65 78 61 73 2e 65 64 | 75 3e 0a 52 65 66 65 72 |texas.ed|u>.Refer|
|000001a0| 65 6e 63 65 73 3a 20 3c | 31 33 32 32 30 40 63 73 |ences: <|13220@cs|
|000001b0| 2e 75 74 65 78 61 73 2e | 65 64 75 3e 0a 53 65 6e |.utexas.|edu>.Sen|
|000001c0| 64 65 72 3a 20 66 6c 65 | 74 63 68 65 72 40 63 73 |der: fle|tcher@cs|
|000001d0| 2e 75 74 65 78 61 73 2e | 65 64 75 0a 4f 72 67 61 |.utexas.|edu.Orga|
|000001e0| 6e 69 7a 61 74 69 6f 6e | 3a 20 43 6f 6d 70 20 53 |nization|: Comp S|
|000001f0| 63 69 2c 20 52 4d 49 54 | 2c 20 4d 65 6c 62 6f 75 |ci, RMIT|, Melbou|
|00000200| 72 6e 65 2c 20 41 75 73 | 74 72 61 6c 69 61 0a 58 |rne, Aus|tralia.X|
|00000210| 2d 53 75 62 6d 69 73 73 | 69 6f 6e 73 3a 20 73 74 |-Submiss|ions: st|
|00000220| 64 2d 75 6e 69 78 40 75 | 75 6e 65 74 2e 75 75 2e |d-unix@u|unet.uu.|
|00000230| 6e 65 74 0a 44 61 74 65 | 3a 20 38 20 4f 63 74 20 |net.Date|: 8 Oct |
|00000240| 39 30 20 30 34 3a 30 34 | 3a 31 32 20 47 4d 54 0a |90 04:04|:12 GMT.|
|00000250| 52 65 70 6c 79 2d 54 6f | 3a 20 73 74 64 2d 75 6e |Reply-To|: std-un|
|00000260| 69 78 40 75 75 6e 65 74 | 2e 75 75 2e 6e 65 74 0a |ix@uunet|.uu.net.|
|00000270| 54 6f 3a 20 73 74 64 2d | 75 6e 69 78 40 75 75 6e |To: std-|unix@uun|
|00000280| 65 74 2e 75 75 2e 6e 65 | 74 0a 0a 53 75 62 6d 69 |et.uu.ne|t..Submi|
|00000290| 74 74 65 64 2d 62 79 3a | 20 6f 6b 40 67 6f 61 6e |tted-by:| ok@goan|
|000002a0| 6e 61 2e 63 73 2e 72 6d | 69 74 2e 4f 5a 2e 41 55 |na.cs.rm|it.OZ.AU|
|000002b0| 20 28 52 69 63 68 61 72 | 64 20 41 2e 20 4f 27 4b | (Richar|d A. O'K|
|000002c0| 65 65 66 65 29 0a 0a 49 | 6e 20 61 72 74 69 63 6c |eefe)..I|n articl|
|000002d0| 65 20 3c 31 33 32 32 30 | 40 63 73 2e 75 74 65 78 |e <13220|@cs.utex|
|000002e0| 61 73 2e 65 64 75 3e 2c | 20 62 72 6e 73 74 6e 64 |as.edu>,| brnstnd|
|000002f0| 40 6b 72 61 6d 64 65 6e | 2e 61 63 66 2e 6e 79 75 |@kramden|.acf.nyu|
|00000300| 2e 65 64 75 20 28 44 61 | 6e 20 42 65 72 6e 73 74 |.edu (Da|n Bernst|
|00000310| 65 69 6e 29 20 77 72 69 | 74 65 73 3a 0a 3e 20 4e |ein) wri|tes:.> N|
|00000320| 6f 77 20 77 65 27 72 65 | 20 6c 6f 6f 6b 69 6e 67 |ow we're| looking|
|00000330| 20 61 74 20 61 6e 6f 74 | 68 65 72 20 70 6f 73 73 | at anot|her poss|
|00000340| 69 62 6c 65 20 61 64 64 | 69 74 69 6f 6e 20 74 6f |ible add|ition to|
|00000350| 20 55 4e 49 58 20 74 68 | 61 74 20 68 61 73 6e 27 | UNIX th|at hasn'|
|00000360| 74 20 62 65 65 6e 0a 3e | 20 77 69 64 65 6c 79 20 |t been.>| widely |
|00000370| 74 65 73 74 65 64 3a 20 | 61 20 75 6e 69 66 69 65 |tested: |a unifie|
|00000380| 64 20 6e 61 6d 65 73 70 | 61 63 65 20 66 6f 72 20 |d namesp|ace for |
|00000390| 6f 70 65 6e 69 6e 67 20 | 61 6c 6c 20 49 2f 4f 20 |opening |all I/O |
|000003a0| 6f 62 6a 65 63 74 73 2e | 20 42 75 74 20 77 65 0a |objects.| But we.|
|000003b0| 3e 20 61 6c 72 65 61 64 | 79 20 68 61 76 65 20 61 |> alread|y have a|
|000003c0| 20 75 6e 69 66 69 65 64 | 20 66 69 6c 65 20 64 65 | unified| file de|
|000003d0| 73 63 72 69 70 74 6f 72 | 20 61 62 73 74 72 61 63 |scriptor| abstrac|
|000003e0| 74 69 6f 6e 20 66 6f 72 | 20 72 65 61 64 69 6e 67 |tion for| reading|
|000003f0| 2c 20 77 72 69 74 69 6e | 67 2c 0a 3e 20 61 6e 64 |, writin|g,.> and|
|00000400| 20 6d 61 6e 69 70 75 6c | 61 74 69 6e 67 20 74 68 | manipul|ating th|
|00000410| 6f 73 65 20 6f 62 6a 65 | 63 74 73 2c 20 61 73 20 |ose obje|cts, as |
|00000420| 77 65 6c 6c 20 61 73 20 | 70 61 73 73 69 6e 67 20 |well as |passing |
|00000430| 74 68 65 6d 20 62 65 74 | 77 65 65 6e 20 73 65 70 |them bet|ween sep|
|00000440| 61 72 61 74 65 0a 3e 20 | 70 72 6f 63 65 73 73 65 |arate.> |processe|
|00000450| 73 2e 20 57 68 79 20 64 | 6f 20 77 65 20 6e 65 65 |s. Why d|o we nee|
|00000460| 64 20 6d 6f 72 65 3f 0a | 0a 49 66 20 79 6f 75 20 |d more?.|.If you |
|00000470| 68 61 76 65 20 74 6f 20 | 75 73 65 20 64 69 66 66 |have to |use diff|
|00000480| 65 72 65 6e 74 20 66 75 | 6e 63 74 69 6f 6e 73 20 |erent fu|nctions |
|00000490| 66 6f 72 20 63 72 65 61 | 74 69 6e 67 20 66 69 6c |for crea|ting fil|
|000004a0| 65 20 64 65 73 63 72 69 | 70 74 6f 72 73 0a 69 6e |e descri|ptors.in|
|000004b0| 20 74 68 65 20 66 69 72 | 73 74 20 70 6c 61 63 65 | the fir|st place|
|000004c0| 2c 20 74 68 65 6e 20 79 | 6f 75 20 68 61 76 65 6e |, then y|ou haven|
|000004d0| 27 74 20 67 6f 74 20 61 | 20 75 6e 69 66 69 65 64 |'t got a| unified|
|000004e0| 20 66 69 6c 65 20 64 65 | 73 63 72 69 70 74 6f 72 | file de|scriptor|
|000004f0| 0a 61 62 73 74 72 61 63 | 74 69 6f 6e 2e 20 20 53 |.abstrac|tion.  S|
|00000500| 75 70 70 6f 73 65 20 49 | 20 77 61 6e 74 20 74 6f |uppose I| want to|
|00000510| 20 77 72 69 74 65 20 61 | 20 22 66 69 6c 74 65 72 | write a| "filter|
|00000520| 22 20 70 72 6f 67 72 61 | 6d 20 74 68 61 74 20 77 |" progra|m that w|
|00000530| 69 6c 6c 0a 6d 65 72 67 | 65 20 74 77 6f 20 73 74 |ill.merg|e two st|
|00000540| 72 65 61 6d 73 2e 20 20 | 49 74 20 77 6f 75 6c 64 |reams.  |It would|
|00000550| 20 62 65 20 6e 69 63 65 | 20 69 66 20 49 20 63 6f | be nice| if I co|
|00000560| 75 6c 64 20 70 61 73 73 | 20 64 65 73 63 72 69 70 |uld pass| descrip|
|00000570| 74 6f 72 73 20 74 6f 0a | 61 20 70 72 6f 67 72 61 |tors to.|a progra|
|00000580| 6d 2c 20 62 75 74 20 74 | 68 61 74 27 73 20 6e 6f |m, but t|hat's no|
|00000590| 74 20 68 6f 77 20 6d 6f | 73 74 20 55 4e 49 58 20 |t how mo|st UNIX |
|000005a0| 73 68 65 6c 6c 73 20 77 | 6f 72 6b 3b 20 49 20 68 |shells w|ork; I h|
|000005b0| 61 76 65 20 74 6f 20 70 | 61 73 73 0a 73 74 72 69 |ave to p|ass.stri|
|000005c0| 6e 67 73 2e 20 20 4e 6f | 77 2c 20 6d 79 20 66 69 |ngs.  No|w, my fi|
|000005d0| 6c 74 65 72 20 6b 6e 6f | 77 73 20 77 68 61 74 20 |lter kno|ws what |
|000005e0| 69 74 20 2a 6e 65 65 64 | 73 2a 20 28 73 65 71 75 |it *need|s* (sequ|
|000005f0| 65 6e 74 69 61 6c 20 72 | 65 61 64 69 6e 67 0a 77 |ential r|eading.w|
|00000600| 69 74 68 20 6e 6f 74 68 | 69 6e 67 20 6d 69 73 73 |ith noth|ing miss|
|00000610| 69 6e 67 20 6f 72 20 6f | 75 74 20 6f 66 20 6f 72 |ing or o|ut of or|
|00000620| 64 65 72 2c 20 62 75 74 | 20 69 66 20 74 68 65 20 |der, but| if the |
|00000630| 63 6f 6e 6e 65 63 74 69 | 6f 6e 20 69 73 20 6c 6f |connecti|on is lo|
|00000640| 73 74 0a 73 6f 6d 65 68 | 6f 77 20 69 74 27 73 20 |st.someh|ow it's |
|00000650| 68 61 70 70 79 20 74 6f | 20 64 72 6f 70 20 64 65 |happy to| drop de|
|00000660| 61 64 29 20 73 6f 20 69 | 74 20 63 6f 75 6c 64 20 |ad) so i|t could |
|00000670| 65 61 73 69 6c 79 20 64 | 6f 0a 09 66 64 20 3d 20 |easily d|o..fd = |
|00000680| 70 6f 73 69 78 5f 6f 70 | 65 6e 28 61 72 67 76 5b |posix_op|en(argv[|
|00000690| 6e 5d 2c 20 22 72 65 61 | 64 3b 73 65 71 75 65 6e |n], "rea|d;sequen|
|000006a0| 74 69 61 6c 3b 72 65 6c | 69 61 62 6c 65 3b 73 6f |tial;rel|iable;so|
|000006b0| 66 74 22 29 3b 0a 61 6e | 64 20 74 68 65 6e 20 69 |ft");.an|d then i|
|000006c0| 74 20 63 61 6e 20 75 73 | 65 20 61 6e 79 20 66 69 |t can us|e any fi|
|000006d0| 6c 65 2c 20 64 65 76 69 | 63 65 2c 20 6f 72 20 6f |le, devi|ce, or o|
|000006e0| 74 68 65 72 20 61 62 73 | 74 72 61 63 74 69 6f 6e |ther abs|traction|
|000006f0| 20 77 68 69 63 68 20 77 | 69 6c 6c 0a 70 72 6f 76 | which w|ill.prov|
|00000700| 69 64 65 20 74 68 69 73 | 20 69 6e 74 65 72 66 61 |ide this| interfa|
|00000710| 63 65 2e 20 20 4d 79 20 | 70 72 6f 67 72 61 6d 20 |ce.  My |program |
|00000720| 2a 63 61 6e 27 74 2a 20 | 6b 6e 6f 77 20 77 68 61 |*can't* |know wha|
|00000730| 74 27 73 20 61 76 61 69 | 6c 61 62 6c 65 2e 0a 49 |t's avai|lable..I|
|00000740| 66 20 73 6f 6d 65 6f 6e | 65 20 63 6f 6d 65 73 20 |f someon|e comes |
|00000750| 61 6c 6f 6e 67 20 77 69 | 74 68 20 61 20 73 70 65 |along wi|th a spe|
|00000760| 63 69 61 6c 20 22 6f 70 | 65 6e 20 68 79 70 65 72 |cial "op|en hyper|
|00000770| 73 70 61 63 65 20 73 68 | 75 6e 74 22 20 66 75 6e |space sh|unt" fun|
|00000780| 63 74 69 6f 6e 3b 0a 6d | 79 20 70 72 6f 67 72 61 |ction;.m|y progra|
|00000790| 6d 20 63 61 6e 27 74 20 | 62 65 6e 65 66 69 74 20 |m can't |benefit |
|000007a0| 66 72 6f 6d 20 69 74 2e | 20 20 49 66 20 68 79 70 |from it.|  If hyp|
|000007b0| 65 72 73 70 61 63 65 20 | 73 68 75 6e 74 73 20 61 |erspace |shunts a|
|000007c0| 72 65 20 69 6e 20 74 68 | 65 0a 67 6c 6f 62 61 6c |re in th|e.global|
|000007d0| 20 6e 61 6d 65 20 73 70 | 61 63 65 20 61 6e 64 20 | name sp|ace and |
|000007e0| 70 6f 73 69 78 5f 6f 70 | 65 6e 28 29 20 75 6e 64 |posix_op|en() und|
|000007f0| 65 72 73 74 61 6e 64 73 | 20 74 68 65 69 72 20 6e |erstands| their n|
|00000800| 61 6d 65 20 73 79 6e 74 | 61 78 2c 20 6d 79 0a 70 |ame synt|ax, my.p|
|00000810| 72 6f 67 72 61 6d 20 77 | 69 6c 6c 20 77 6f 72 6b |rogram w|ill work|
|00000820| 20 6a 75 73 74 20 66 69 | 6e 65 2e 0a 0a 53 75 72 | just fi|ne...Sur|
|00000830| 65 6c 79 20 74 68 69 73 | 20 69 73 20 74 68 65 20 |ely this| is the |
|00000840| 70 6f 69 6e 74 3f 20 20 | 57 65 20 77 61 6e 74 20 |point?  |We want |
|00000850| 6f 75 72 20 70 72 6f 67 | 72 61 6d 73 20 74 6f 20 |our prog|rams to |
|00000860| 72 65 6d 61 69 6e 20 75 | 73 65 66 75 6c 20 77 68 |remain u|seful wh|
|00000870| 65 6e 0a 6e 65 77 20 74 | 68 69 6e 67 73 20 61 72 |en.new t|hings ar|
|00000880| 65 20 61 64 64 65 64 20 | 74 68 61 74 20 6f 75 72 |e added |that our|
|00000890| 20 70 72 6f 67 72 61 6d | 73 20 63 6f 75 6c 64 20 | program|s could |
|000008a0| 6d 65 61 6e 69 6e 67 66 | 75 6c 6c 79 20 77 6f 72 |meaningf|ully wor|
|000008b0| 6b 20 77 69 74 68 2e 0a | 0a 49 20 63 61 6e 20 73 |k with..|.I can s|
|000008c0| 65 65 20 74 68 65 20 70 | 6f 69 6e 74 20 69 6e 20 |ee the p|oint in |
|000008d0| 73 61 79 69 6e 67 20 22 | 73 68 61 72 65 64 20 6d |saying "|shared m|
|000008e0| 65 6d 6f 72 79 20 73 65 | 67 6d 65 6e 74 73 20 61 |emory se|gments a|
|000008f0| 72 65 6e 27 74 20 6d 75 | 63 68 20 6c 69 6b 65 0a |ren't mu|ch like.|
|00000900| 74 72 61 6e 73 70 75 74 | 3b 20 6c 65 74 27 73 20 |transput|; let's |
|00000910| 6b 65 65 70 20 74 68 65 | 6d 20 6f 75 74 20 6f 66 |keep the|m out of|
|00000920| 20 74 68 65 20 67 6c 6f | 62 61 6c 20 6e 61 6d 65 | the glo|bal name|
|00000930| 20 73 70 61 63 65 22 2c | 20 62 75 74 20 73 6f 63 | space",| but soc|
|00000940| 6b 65 74 73 0a 61 6e 64 | 20 4e 46 53 20 66 69 6c |kets.and| NFS fil|
|00000950| 65 73 20 61 6e 64 20 73 | 75 63 68 20 2a 61 72 65 |es and s|uch *are|
|00000960| 2a 20 22 74 72 61 6e 73 | 70 75 74 2d 6c 69 6b 65 |* "trans|put-like|
|00000970| 22 2e 20 20 41 6e 79 74 | 68 69 6e 67 20 77 68 69 |".  Anyt|hing whi|
|00000980| 63 68 20 77 69 6c 6c 0a | 73 75 70 70 6f 72 74 20 |ch will.|support |
|00000990| 61 74 20 6c 65 61 73 74 | 20 73 65 71 75 65 6e 74 |at least| sequent|
|000009a0| 69 61 6c 20 49 2f 4f 20 | 73 68 6f 75 6c 64 20 6c |ial I/O |should l|
|000009b0| 6f 6f 6b 20 6c 69 6b 65 | 20 61 20 66 69 6c 65 2e |ook like| a file.|
|000009c0| 20 20 49 66 20 74 68 61 | 74 0a 6d 65 61 6e 73 20 |  If tha|t.means |
|000009d0| 74 68 61 74 20 73 6f 6d | 65 20 74 68 69 6e 67 73 |that som|e things|
|000009e0| 20 69 6e 20 74 68 65 20 | 67 6c 6f 62 61 6c 20 6e | in the |global n|
|000009f0| 61 6d 65 20 73 70 61 63 | 65 20 61 72 65 20 22 72 |ame spac|e are "r|
|00000a00| 65 61 6c 20 55 4e 49 58 | 20 66 69 6c 65 73 22 0a |eal UNIX| files".|
|00000a10| 77 69 74 68 20 66 75 6c | 6c 20 31 30 30 33 2e 31 |with ful|l 1003.1|
|00000a20| 20 73 65 6d 61 6e 74 69 | 63 73 20 62 75 74 20 73 | semanti|cs but s|
|00000a30| 6f 6d 65 20 74 68 69 6e | 67 73 20 61 72 65 6e 27 |ome thin|gs aren'|
|00000a40| 74 2c 20 74 68 61 74 27 | 73 20 6f 6b 20 61 73 20 |t, that'|s ok as |
|00000a50| 6c 6f 6e 67 0a 61 73 20 | 6d 79 20 70 72 6f 67 72 |long.as |my progr|
|00000a60| 61 6d 73 20 63 61 6e 20 | 66 69 6e 64 20 6f 75 74 |ams can |find out|
|00000a70| 20 77 68 65 74 68 65 72 | 20 74 68 65 79 27 76 65 | whether| they've|
|00000a80| 20 67 6f 74 20 77 68 61 | 74 20 74 68 65 79 20 6e | got wha|t they n|
|00000a90| 65 65 64 2e 0a 0a 4f 6e | 65 20 70 6f 69 6e 74 20 |eed...On|e point |
|00000aa0| 74 6f 20 62 65 61 72 20 | 69 6e 20 6d 69 6e 64 20 |to bear |in mind |
|00000ab0| 69 73 20 74 68 61 74 20 | 61 70 70 6c 69 63 61 74 |is that |applicat|
|00000ac0| 69 6f 6e 20 70 72 6f 67 | 72 61 6d 73 20 77 72 69 |ion prog|rams wri|
|00000ad0| 74 74 65 6e 20 69 6e 0a | 43 2c 20 46 6f 72 74 72 |tten in.|C, Fortr|
|00000ae0| 61 6e 2c 20 41 64 61 2c | 20 26 63 20 61 72 65 20 |an, Ada,| &c are |
|00000af0| 6c 69 6b 65 6c 79 20 74 | 6f 20 6d 61 70 20 66 69 |likely t|o map fi|
|00000b00| 6c 65 20 6e 61 6d 65 20 | 73 74 72 69 6e 67 73 20 |le name |strings |
|00000b10| 69 6e 20 74 68 6f 73 65 | 0a 6c 61 6e 67 75 61 67 |in those|.languag|
|00000b20| 65 73 20 66 61 69 72 6c | 79 20 64 69 72 65 63 74 |es fairl|y direct|
|00000b30| 6c 79 20 74 6f 20 73 74 | 72 69 6e 67 73 20 69 6e |ly to st|rings in|
|00000b40| 20 74 68 65 20 50 4f 53 | 49 58 20 6e 61 6d 65 20 | the POS|IX name |
|00000b50| 73 70 61 63 65 3b 20 74 | 6f 0a 6b 65 65 70 20 73 |space; t|o.keep s|
|00000b60| 6f 6d 65 74 68 69 6e 67 | 20 74 68 61 74 20 5f 63 |omething| that _c|
|00000b70| 6f 75 6c 64 5f 20 68 61 | 76 65 20 73 75 70 70 6f |ould_ ha|ve suppo|
|00000b80| 72 74 65 64 20 43 2c 20 | 6f 72 20 46 6f 72 74 72 |rted C, |or Fortr|
|00000b90| 61 6e 2c 20 6f 72 20 41 | 64 61 0a 74 72 61 6e 73 |an, or A|da.trans|
|00000ba0| 70 75 74 20 72 65 71 75 | 65 73 74 73 20 6f 75 74 |put requ|ests out|
|00000bb0| 20 6f 66 20 74 68 65 20 | 66 69 6c 65 20 6e 61 6d | of the |file nam|
|00000bc0| 65 20 73 70 61 63 65 20 | 69 73 20 74 6f 20 6d 61 |e space |is to ma|
|00000bd0| 6b 65 20 73 75 63 68 20 | 74 68 69 6e 67 73 0a 75 |ke such |things.u|
|00000be0| 6e 61 76 61 69 6c 61 62 | 6c 65 20 74 6f 20 70 6f |navailab|le to po|
|00000bf0| 72 74 61 62 6c 65 20 70 | 72 6f 67 72 61 6d 73 2e |rtable p|rograms.|
|00000c00| 20 20 49 66 20 73 6f 6d | 65 20 6e 65 74 77 6f 72 |  If som|e networ|
|00000c10| 6b 20 63 6f 6e 6e 65 63 | 74 69 6f 6e 73 20 63 61 |k connec|tions ca|
|00000c20| 6e 0a 62 65 68 61 76 65 | 20 6c 69 6b 65 20 73 65 |n.behave| like se|
|00000c30| 71 75 65 6e 74 69 61 6c | 20 66 69 6c 65 73 20 28 |quential| files (|
|00000c40| 65 76 65 6e 20 69 66 20 | 74 68 65 79 20 64 6f 6e |even if |they don|
|00000c50| 27 74 20 73 75 70 70 6f | 72 74 20 66 75 6c 6c 20 |'t suppo|rt full |
|00000c60| 31 30 30 33 2e 31 0a 73 | 65 6d 61 6e 74 69 63 73 |1003.1.s|emantics|
|00000c70| 29 2c 20 74 68 65 6e 20 | 77 68 79 20 6b 65 65 70 |), then |why keep|
|00000c80| 20 74 68 65 6d 20 6f 75 | 74 20 6f 66 20 72 65 61 | them ou|t of rea|
|00000c90| 63 68 20 74 6f 20 70 6f | 72 74 61 62 6c 65 20 70 |ch to po|rtable p|
|00000ca0| 72 6f 67 72 61 6d 73 3f | 0a 0a 28 49 20 68 61 76 |rograms?|..(I hav|
|00000cb0| 65 20 75 73 65 64 20 61 | 20 73 79 73 74 65 6d 20 |e used a| system |
|00000cc0| 77 68 65 72 65 20 61 20 | 67 6c 6f 62 61 6c 20 6e |where a |global n|
|00000cd0| 61 6d 65 20 73 70 61 63 | 65 20 77 61 73 20 66 61 |ame spac|e was fa|
|00000ce0| 6b 65 64 20 62 79 20 74 | 68 65 20 52 54 4c 2e 0a |ked by t|he RTL..|
|00000cf0| 54 72 6f 75 62 6c 65 20 | 69 73 2c 20 64 69 66 66 |Trouble |is, diff|
|00000d00| 65 72 65 6e 74 20 6c 61 | 6e 67 75 61 67 65 73 20 |erent la|nguages |
|00000d10| 64 69 64 20 69 74 20 64 | 69 66 66 65 72 65 6e 74 |did it d|ifferent|
|00000d20| 6c 79 2c 20 69 66 20 61 | 74 20 61 6c 6c 2e 2e 2e |ly, if a|t all...|
|00000d30| 29 0a 0a 45 76 65 6e 20 | 73 68 61 72 65 64 20 6d |)..Even |shared m|
|00000d40| 65 6d 6f 72 79 20 73 65 | 67 6d 65 6e 74 73 20 2a |emory se|gments *|
|00000d50| 63 6f 75 6c 64 2a 20 73 | 75 70 70 6f 72 74 20 72 |could* s|upport r|
|00000d60| 65 61 64 2c 20 77 72 69 | 74 65 2c 20 6c 73 65 65 |ead, wri|te, lsee|
|00000d70| 6b 2e 2e 2e 0a 0a 2d 2d | 20 0a 46 65 61 72 20 6d |k.....--| .Fear m|
|00000d80| 6f 73 74 20 6f 66 20 61 | 6c 6c 20 74 6f 20 62 65 |ost of a|ll to be|
|00000d90| 20 69 6e 20 65 72 72 6f | 72 2e 09 2d 2d 20 4b 69 | in erro|r..-- Ki|
|00000da0| 65 72 6b 65 67 61 61 72 | 64 2c 20 71 75 6f 74 69 |erkegaar|d, quoti|
|00000db0| 6e 67 20 53 6f 63 72 61 | 74 65 73 2e 0a 0a 0a 56 |ng Socra|tes....V|
|00000dc0| 6f 6c 75 6d 65 2d 4e 75 | 6d 62 65 72 3a 20 56 6f |olume-Nu|mber: Vo|
|00000dd0| 6c 75 6d 65 20 32 31 2c | 20 4e 75 6d 62 65 72 20 |lume 21,| Number |
|00000de0| 31 39 30 0a 0a          |                         |190..   |        |
+--------+-------------------------+-------------------------+--------+--------+