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DOS BACKUP file  |  1988-01-06  |  7.1 KB
open in: MacOS 8.1     |     Win98     |     DOS

view JSON data     |     view as text

This file was processed as: DOS BACKUP file (archive/dosBackupFile).

You can browse this item here: CHKBTREE.C

ConfidenceProgramDetectionMatch TypeSupport
100% dexvert DOS BACKUP file (archive/dosBackupFile) magic Supported
66% dexvert Compact Compressed (Unix) (archive/compact) ext Supported
100% file DOS 2.0-3.2 backed up file \CBTREE\PROGRAMS\CHKBTREE.C default
99% file data default
51% TrID DOS 2.0-3.2 backup default
48% TrID MP3 audio default (weak)


hex view
+--------+-------------------------+-------------------------+--------+--------+
|00000000| ff 01 00 00 00 5c 43 42 | 54 52 45 45 5c 50 52 4f |.....\CB|TREE\PRO|
|00000010| 47 52 41 4d 53 5c 43 48 | 4b 42 54 52 45 45 2e 43 |GRAMS\CH|KBTREE.C|
|00000020| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000040| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000050| 00 00 00 1c 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000060| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000070| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000080| 2f 2a 20 28 43 29 20 43 | 6f 70 79 72 69 67 68 74 |/* (C) C|opyright|
|00000090| 20 31 39 38 34 2c 38 35 | 2c 38 36 2c 38 37 20 57 | 1984,85|,86,87 W|
|000000a0| 61 6c 74 65 72 20 4c 2e | 20 50 65 61 63 6f 63 6b |alter L.| Peacock|
|000000b0| 20 20 20 41 6c 6c 20 52 | 69 67 68 74 73 20 52 65 |   All R|ights Re|
|000000c0| 73 65 72 76 65 64 20 20 | 20 2a 2f 0d 0a 2f 2a 20 |served  | */../* |
|000000d0| 54 48 49 53 20 50 52 4f | 47 52 41 4d 20 42 45 4c |THIS PRO|GRAM BEL|
|000000e0| 4f 4e 47 53 20 54 4f 20 | 57 41 4c 54 45 52 20 4c |ONGS TO |WALTER L|
|000000f0| 2e 20 50 45 41 43 4f 43 | 4b 2e 20 20 49 54 20 49 |. PEACOC|K.  IT I|
|00000100| 53 20 43 4f 4e 53 49 44 | 45 52 45 44 20 41 20 54 |S CONSID|ERED A T|
|00000110| 52 41 44 45 20 2a 2f 0d | 0a 2f 2a 20 53 45 43 52 |RADE */.|./* SECR|
|00000120| 45 54 20 41 4e 44 20 49 | 53 20 4e 4f 54 20 54 4f |ET AND I|S NOT TO|
|00000130| 20 42 45 20 44 49 56 55 | 4c 47 45 44 20 4f 52 20 | BE DIVU|LGED OR |
|00000140| 55 53 45 44 20 42 59 20 | 50 41 52 54 49 45 53 20 |USED BY |PARTIES |
|00000150| 57 48 4f 20 48 41 56 45 | 20 4e 4f 54 20 20 20 2a |WHO HAVE| NOT   *|
|00000160| 2f 0d 0a 2f 2a 20 52 45 | 43 45 49 56 45 44 20 57 |/../* RE|CEIVED W|
|00000170| 52 49 54 54 45 4e 20 41 | 55 54 48 4f 52 49 5a 41 |RITTEN A|UTHORIZA|
|00000180| 54 49 4f 4e 20 46 52 4f | 4d 20 54 48 45 20 4f 57 |TION FRO|M THE OW|
|00000190| 4e 45 52 2e 20 20 20 20 | 20 20 20 20 20 20 20 20 |NER.    |        |
|000001a0| 20 20 20 20 20 20 2a 2f | 0d 0a 0d 0a 2f 2a 2d 2d |      */|..../*--|
|000001b0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000001c0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000001d0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000001e0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000001f0| 2d 2d 2d 2d 2d 0d 0a 54 | 68 65 20 75 74 69 6c 69 |-----..T|he utili|
|00000200| 74 79 20 63 6b 62 74 72 | 65 65 20 70 65 72 66 6f |ty ckbtr|ee perfo|
|00000210| 72 6d 73 20 69 6e 74 65 | 67 72 69 74 79 20 63 68 |rms inte|grity ch|
|00000220| 65 63 6b 73 20 6f 6e 20 | 74 68 65 20 73 70 65 63 |ecks on |the spec|
|00000230| 69 66 69 65 64 20 62 2b | 74 72 65 65 0d 0a 69 6e |ified b+|tree..in|
|00000240| 64 65 78 20 66 69 6c 65 | 2e 20 20 49 74 20 76 65 |dex file|.  It ve|
|00000250| 72 69 66 69 65 73 20 74 | 68 61 74 20 61 6c 6c 20 |rifies t|hat all |
|00000260| 69 6e 64 65 78 20 6e 6f | 64 65 73 20 61 6e 64 20 |index no|des and |
|00000270| 64 61 74 61 20 6e 6f 64 | 65 73 20 61 72 65 20 70 |data nod|es are p|
|00000280| 72 6f 70 65 72 6c 79 0d | 0a 6c 69 6e 6b 65 64 20 |roperly.|.linked |
|00000290| 61 6e 64 20 73 65 71 75 | 65 6e 63 65 64 2e 20 20 |and sequ|enced.  |
|000002a0| 49 74 20 61 6c 73 6f 20 | 63 68 65 63 6b 73 20 74 |It also |checks t|
|000002b0| 68 65 20 6f 72 64 65 72 | 20 6f 66 20 6b 65 79 73 |he order| of keys|
|000002c0| 20 77 69 74 68 69 6e 20 | 65 61 63 68 20 6e 6f 64 | within |each nod|
|000002d0| 65 2e 0d 0a 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |e...----|--------|
|000002e0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000002f0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000300| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000310| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2a 2f 0d |--------|-----*/.|
|00000320| 0a 2f 2a 20 30 39 2f 31 | 31 2f 38 37 20 20 43 20 |./* 09/1|1/87  C |
|00000330| 4b 20 42 20 54 20 52 20 | 45 20 45 20 2e 20 43 20 |K B T R |E E . C |
|00000340| 20 20 63 68 65 63 6b 20 | 62 74 72 65 65 20 70 6f |  check |btree po|
|00000350| 69 6e 74 65 72 73 20 61 | 6e 64 20 6b 65 79 73 20 |inters a|nd keys |
|00000360| 20 20 20 20 20 20 2a 2f | 0d 0a 0d 0a 23 69 6e 63 |      */|....#inc|
|00000370| 6c 75 64 65 20 3c 73 74 | 64 69 6f 2e 68 3e 0d 0a |lude <st|dio.h>..|
|00000380| 23 69 6e 63 6c 75 64 65 | 20 22 63 62 74 72 65 65 |#include| "cbtree|
|00000390| 2e 68 22 0d 0a 2f 2a 20 | 62 74 66 69 6f 2e 68 20 |.h"../* |btfio.h |
|000003a0| 2a 6d 75 73 74 2a 20 62 | 65 20 69 6e 63 6c 75 64 |*must* b|e includ|
|000003b0| 65 64 20 77 68 65 6e 20 | 62 74 5f 6f 70 65 6e 28 |ed when |bt_open(|
|000003c0| 29 20 69 73 20 75 73 65 | 64 20 2a 2f 0d 0a 23 69 |) is use|d */..#i|
|000003d0| 6e 63 6c 75 64 65 20 22 | 62 74 66 69 6f 2e 68 22 |nclude "|btfio.h"|
|000003e0| 0d 0a 0d 0a 23 69 66 20 | 43 49 20 7c 20 44 43 0d |....#if |CI | DC.|
|000003f0| 0a 23 65 6c 73 65 0d 0a | 23 69 6e 63 6c 75 64 65 |.#else..|#include|
|00000400| 20 3c 63 74 79 70 65 2e | 68 3e 0d 0a 23 65 6e 64 | <ctype.|h>..#end|
|00000410| 69 66 0d 0a 0d 0a 6c 6f | 6e 67 20 6b 65 79 69 63 |if....lo|ng keyic|
|00000420| 6e 74 2c 20 69 64 78 64 | 63 6e 74 2c 20 69 64 78 |nt, idxd|cnt, idx|
|00000430| 74 63 6e 74 3b 0d 0a 69 | 6e 74 20 63 6b 6b 65 79 |tcnt;..i|nt ckkey|
|00000440| 61 6e 73 3b 0d 0a 63 68 | 61 72 20 2a 6c 61 73 74 |ans;..ch|ar *last|
|00000450| 6b 65 79 3b 0d 0a 0d 0a | 76 6f 69 64 20 6d 61 69 |key;....|void mai|
|00000460| 6e 28 61 72 67 63 2c 20 | 61 72 67 76 29 0d 0a 69 |n(argc, |argv)..i|
|00000470| 6e 74 20 61 72 67 63 3b | 0d 0a 63 68 61 72 20 2a |nt argc;|..char *|
|00000480| 2a 61 72 67 76 3b 0d 0a | 7b 0d 0a 20 20 20 65 78 |*argv;..|{..   ex|
|00000490| 74 65 72 6e 20 63 68 61 | 72 20 2a 73 74 72 63 70 |tern cha|r *strcp|
|000004a0| 79 28 29 2c 20 2a 63 61 | 6c 6c 6f 63 28 29 2c 20 |y(), *ca|lloc(), |
|000004b0| 2a 73 74 72 63 61 74 28 | 29 3b 0d 0a 20 20 20 65 |*strcat(|);..   e|
|000004c0| 78 74 65 72 6e 20 69 6e | 74 20 20 20 73 74 72 6c |xtern in|t   strl|
|000004d0| 65 6e 28 29 2c 20 65 78 | 69 74 28 29 2c 20 61 74 |en(), ex|it(), at|
|000004e0| 6f 69 28 29 2c 20 63 6b | 6c 76 6c 70 74 72 28 29 |oi(), ck|lvlptr()|
|000004f0| 3b 0d 0a 20 20 20 65 78 | 74 65 72 6e 20 76 6f 69 |;..   ex|tern voi|
|00000500| 64 20 66 72 65 65 28 29 | 3b 0d 0a 20 20 20 65 78 |d free()|;..   ex|
|00000510| 74 65 72 6e 20 6c 6f 6e | 67 20 67 65 74 72 6f 6f |tern lon|g getroo|
|00000520| 74 28 29 3b 0d 0a 20 20 | 20 6c 6f 6e 67 20 72 6f |t();..  | long ro|
|00000530| 6f 74 70 74 72 2c 20 73 | 61 76 6c 76 6c 70 74 2c |otptr, s|avlvlpt,|
|00000540| 20 73 61 76 6c 76 6c 2c | 20 64 65 70 74 68 3b 0d | savlvl,| depth;.|
|00000550| 0a 20 20 20 73 74 72 75 | 63 74 20 62 74 63 6f 6d |.   stru|ct btcom|
|00000560| 6d 6f 20 62 74 73 74 72 | 75 63 74 3b 0d 0a 20 20 |mo btstr|uct;..  |
|00000570| 20 42 54 49 44 58 42 4c | 4b 20 2a 69 64 78 62 6c | BTIDXBL|K *idxbl|
|00000580| 6b 3b 0d 0a 20 20 20 69 | 6e 74 20 66 64 69 64 78 |k;..   i|nt fdidx|
|00000590| 3b 0d 0a 20 20 20 72 65 | 67 69 73 74 65 72 20 69 |;..   re|gister i|
|000005a0| 6e 74 20 69 3b 0d 0a 0d | 0a 20 20 20 77 6f 70 65 |nt i;...|.   wope|
|000005b0| 6e 28 22 43 4f 4e 3a 30 | 2f 30 2f 36 34 30 2f 32 |n("CON:0|/0/640/2|
|000005c0| 30 30 2f 43 6b 62 74 72 | 65 65 22 29 3b 0d 0a 0d |00/Ckbtr|ee");...|
|000005d0| 0a 20 20 20 73 63 72 5f | 63 6c 72 28 29 3b 20 20 |.   scr_|clr();  |
|000005e0| 20 2f 2a 20 63 6c 65 61 | 72 20 74 68 65 20 73 63 | /* clea|r the sc|
|000005f0| 72 65 65 6e 20 2a 2f 0d | 0a 20 20 20 73 63 72 5f |reen */.|.   scr_|
|00000600| 63 75 72 73 28 31 2c 32 | 34 29 3b 0d 0a 20 20 20 |curs(1,2|4);..   |
|00000610| 70 72 69 6e 74 66 28 22 | 43 48 45 43 4b 20 42 2b |printf("|CHECK B+|
|00000620| 54 52 45 45 20 53 54 52 | 55 43 54 55 52 45 22 29 |TREE STR|UCTURE")|
|00000630| 3b 0d 0a 20 20 20 73 63 | 72 5f 63 75 72 73 28 33 |;..   sc|r_curs(3|
|00000640| 2c 20 33 29 3b 0d 0a 20 | 20 20 70 72 69 6e 74 66 |, 3);.. |  printf|
|00000650| 28 22 6f 20 20 20 52 65 | 61 64 73 20 65 61 63 68 |("o   Re|ads each|
|00000660| 20 69 6e 64 65 78 20 62 | 6c 6f 63 6b 20 61 6e 64 | index b|lock and|
|00000670| 20 76 65 72 69 66 69 65 | 73 20 74 68 61 74 20 69 | verifie|s that i|
|00000680| 6e 74 65 72 6e 61 6c 20 | 70 6f 69 6e 74 65 72 73 |nternal |pointers|
|00000690| 22 29 3b 0d 0a 20 20 20 | 73 63 72 5f 63 75 72 73 |");..   |scr_curs|
|000006a0| 28 34 2c 20 33 29 3b 0d | 0a 20 20 20 70 72 69 6e |(4, 3);.|.   prin|
|000006b0| 74 66 28 22 6f 20 20 20 | 61 72 65 20 63 6f 6e 73 |tf("o   |are cons|
|000006c0| 69 73 74 65 6e 74 2e 20 | 20 41 6c 73 6f 20 76 65 |istent. | Also ve|
|000006d0| 72 69 66 69 65 73 20 74 | 68 61 74 20 6b 65 79 73 |rifies t|hat keys|
|000006e0| 20 61 72 65 20 69 6e 20 | 70 72 6f 70 65 72 20 73 | are in |proper s|
|000006f0| 65 71 75 65 6e 63 65 22 | 29 3b 0d 0a 20 20 20 73 |equence"|);..   s|
|00000700| 63 72 5f 63 75 72 73 28 | 35 2c 20 33 29 3b 0d 0a |cr_curs(|5, 3);..|
|00000710| 20 20 20 70 72 69 6e 74 | 66 28 22 6f 20 20 20 61 |   print|f("o   a|
|00000720| 6e 64 20 61 63 63 75 6d | 75 6c 61 74 65 73 20 74 |nd accum|ulates t|
|00000730| 68 65 20 74 6f 74 61 6c | 20 6b 65 79 20 63 6f 75 |he total| key cou|
|00000740| 6e 74 20 61 74 20 74 68 | 65 20 6c 65 61 66 20 6e |nt at th|e leaf n|
|00000750| 6f 64 65 2e 22 29 3b 0d | 0a 0d 0a 20 20 20 67 65 |ode.");.|...   ge|
|00000760| 74 62 6e 61 6d 65 28 61 | 72 67 63 2c 20 61 72 67 |tbname(a|rgc, arg|
|00000770| 76 2c 20 26 62 74 73 74 | 72 75 63 74 29 3b 0d 0a |v, &btst|ruct);..|
|00000780| 0d 0a 20 20 20 73 63 72 | 5f 63 75 72 73 28 39 2c |..   scr|_curs(9,|
|00000790| 20 33 29 3b 0d 0a 20 20 | 20 70 72 69 6e 74 66 28 | 3);..  | printf(|
|000007a0| 22 20 20 20 20 42 65 67 | 69 6e 6e 69 6e 67 20 63 |"    Beg|inning c|
|000007b0| 68 65 63 6b 20 6f 66 20 | 69 6e 64 65 78 20 70 61 |heck of |index pa|
|000007c0| 67 65 20 70 6f 69 6e 74 | 65 72 73 2e 20 22 29 3b |ge point|ers. ");|
|000007d0| 0d 0a 0d 0a 20 20 20 63 | 6b 6b 65 79 61 6e 73 20 |....   c|kkeyans |
|000007e0| 3d 20 31 3b 20 20 20 20 | 20 2f 2a 20 63 68 65 63 |= 1;    | /* chec|
|000007f0| 6b 20 6b 65 79 20 73 65 | 71 75 65 6e 63 65 73 20 |k key se|quences |
|00000800| 2a 2f 0d 0a 0d 0a 20 20 | 20 20 20 20 2f 2a 20 6f |*/....  |    /* o|
|00000810| 70 65 6e 20 62 74 73 74 | 72 75 63 74 2e 69 64 78 |pen btst|ruct.idx|
|00000820| 20 66 69 6c 65 20 20 20 | 2a 2f 0d 0a 20 20 20 69 | file   |*/..   i|
|00000830| 66 28 20 28 66 64 69 64 | 78 20 3d 20 62 74 5f 6f |f( (fdid|x = bt_o|
|00000840| 70 65 6e 28 62 74 73 74 | 72 75 63 74 2e 69 64 78 |pen(btst|ruct.idx|
|00000850| 6e 61 6d 65 2c 20 4f 5f | 52 44 4f 4e 4c 59 29 20 |name, O_|RDONLY) |
|00000860| 29 20 3d 3d 20 45 52 52 | 29 0d 0a 20 20 20 20 20 |) == ERR|)..     |
|00000870| 20 63 6b 65 72 72 6f 72 | 28 2d 20 43 4b 5f 4f 50 | ckerror|(- CK_OP|
|00000880| 45 4e 2c 20 22 63 6b 62 | 74 72 65 65 22 29 3b 0d |EN, "ckb|tree");.|
|00000890| 0a 0d 0a 20 20 20 69 20 | 3d 20 73 69 7a 65 6f 66 |...   i |= sizeof|
|000008a0| 28 42 54 49 44 58 42 4c | 4b 29 20 2b 20 62 74 73 |(BTIDXBL|K) + bts|
|000008b0| 74 72 75 63 74 2e 62 74 | 63 65 6c 6c 73 20 2a 20 |truct.bt|cells * |
|000008c0| 73 69 7a 65 6f 66 28 42 | 54 49 44 58 29 3b 0d 0a |sizeof(B|TIDX);..|
|000008d0| 20 20 20 69 66 28 20 21 | 28 69 64 78 62 6c 6b 20 |   if( !|(idxblk |
|000008e0| 3d 20 28 42 54 49 44 58 | 42 4c 4b 20 2a 29 20 63 |= (BTIDX|BLK *) c|
|000008f0| 61 6c 6c 6f 63 28 69 2c | 20 53 5a 43 48 41 52 29 |alloc(i,| SZCHAR)|
|00000900| 20 29 29 0d 0a 20 20 20 | 20 20 20 63 6b 65 72 72 | ))..   |   ckerr|
|00000910| 6f 72 28 2d 20 43 4b 5f | 4e 4f 4d 45 4d 2c 20 22 |or(- CK_|NOMEM, "|
|00000920| 63 62 74 72 73 65 71 3a | 20 69 64 78 62 6c 6b 22 |cbtrseq:| idxblk"|
|00000930| 29 3b 0d 0a 0d 0a 20 20 | 20 69 66 28 20 21 28 6c |);....  | if( !(l|
|00000940| 61 73 74 6b 65 79 20 3d | 20 28 63 68 61 72 20 2a |astkey =| (char *|
|00000950| 29 20 63 61 6c 6c 6f 63 | 28 62 74 73 74 72 75 63 |) calloc|(btstruc|
|00000960| 74 2e 62 74 6b 65 79 6c | 65 6e 20 2b 20 31 2c 20 |t.btkeyl|en + 1, |
|00000970| 31 29 20 29 29 0d 0a 20 | 20 20 20 20 20 63 6b 65 |1) )).. |     cke|
|00000980| 72 72 6f 72 28 2d 20 43 | 4b 5f 4e 4f 4d 45 4d 2c |rror(- C|K_NOMEM,|
|00000990| 20 22 63 6b 62 74 72 65 | 65 3a 20 6c 61 73 74 6b | "ckbtre|e: lastk|
|000009a0| 65 79 22 29 3b 0d 0a 0d | 0a 20 20 20 6b 65 79 69 |ey");...|.   keyi|
|000009b0| 63 6e 74 20 3d 20 69 64 | 78 64 63 6e 74 20 3d 20 |cnt = id|xdcnt = |
|000009c0| 69 64 78 74 63 6e 74 20 | 3d 20 30 4c 3b 0d 0a 20 |idxtcnt |= 0L;.. |
|000009d0| 20 20 64 65 70 74 68 20 | 3d 20 31 4c 3b 0d 0a 20 |  depth |= 1L;.. |
|000009e0| 20 20 69 64 78 62 6c 6b | 2d 3e 62 6c 6b 61 6c 6c |  idxblk|->blkall|
|000009f0| 6f 63 20 3d 20 30 3b 0d | 0a 0d 0a 20 20 20 72 6f |oc = 0;.|...   ro|
|00000a00| 6f 74 70 74 72 20 3d 20 | 67 65 74 72 6f 6f 74 28 |otptr = |getroot(|
|00000a10| 66 64 69 64 78 2c 20 62 | 74 73 74 72 75 63 74 2e |fdidx, b|tstruct.|
|00000a20| 66 69 6e 64 72 6f 6f 74 | 29 3b 20 20 2f 2a 20 67 |findroot|);  /* g|
|00000a30| 65 74 20 70 74 72 20 74 | 6f 20 69 64 78 20 72 6f |et ptr t|o idx ro|
|00000a40| 6f 74 20 6e 6f 64 65 20 | 2a 2f 0d 0a 20 20 20 0d |ot node |*/..   .|
|00000a50| 0a 20 20 20 67 65 74 69 | 64 78 72 28 66 64 69 64 |.   geti|dxr(fdid|
|00000a60| 78 2c 20 72 6f 6f 74 70 | 74 72 2c 20 69 64 78 62 |x, rootp|tr, idxb|
|00000a70| 6c 6b 2c 20 62 74 73 74 | 72 75 63 74 2e 62 74 69 |lk, btst|ruct.bti|
|00000a80| 64 78 6c 65 6e 2c 20 62 | 74 73 74 72 75 63 74 2e |dxlen, b|tstruct.|
|00000a90| 62 74 6b 65 79 6c 65 6e | 29 3b 0d 0a 20 20 20 73 |btkeylen|);..   s|
|00000aa0| 61 76 6c 76 6c 20 3d 20 | 69 64 78 62 6c 6b 2d 3e |avlvl = |idxblk->|
|00000ab0| 62 74 70 61 67 65 5b 30 | 5d 2e 62 74 70 74 72 3b |btpage[0|].btptr;|
|00000ac0| 0d 0a 0d 0a 20 20 20 73 | 63 72 5f 63 75 72 73 28 |....   s|cr_curs(|
|00000ad0| 31 31 2c 20 31 36 29 3b | 0d 0a 20 20 20 70 72 69 |11, 16);|..   pri|
|00000ae0| 6e 74 66 28 22 44 65 70 | 74 68 20 20 20 20 4e 6f |ntf("Dep|th    No|
|00000af0| 64 65 20 20 20 20 20 4b | 65 79 20 43 6f 75 6e 74 |de     K|ey Count|
|00000b00| 22 2c 20 72 6f 6f 74 70 | 74 72 29 3b 0d 0a 20 20 |", rootp|tr);..  |
|00000b10| 20 73 63 72 5f 63 75 72 | 73 28 31 32 2c 20 31 36 | scr_cur|s(12, 16|
|00000b20| 29 3b 0d 0a 20 20 20 70 | 72 69 6e 74 66 28 22 25 |);..   p|rintf("%|
|00000b30| 33 6c 64 20 20 25 37 6c | 64 20 20 20 20 20 20 20 |3ld  %7l|d       |
|00000b40| 20 20 20 20 20 20 22 2c | 20 64 65 70 74 68 2b 2b |      ",| depth++|
|00000b50| 2c 20 72 6f 6f 74 70 74 | 72 29 3b 0d 0a 0d 0a 20 |, rootpt|r);.... |
|00000b60| 20 20 73 74 72 63 70 79 | 28 6c 61 73 74 6b 65 79 |  strcpy|(lastkey|
|00000b70| 2c 20 22 22 29 3b 20 20 | 20 2f 2a 20 69 6e 69 74 |, "");  | /* init|
|00000b80| 69 61 6c 69 7a 65 20 61 | 74 20 65 61 63 68 20 6c |ialize a|t each l|
|00000b90| 65 76 65 6c 20 2a 2f 0d | 0a 0d 0a 20 20 20 69 66 |evel */.|...   if|
|00000ba0| 20 28 63 6b 6c 76 6c 70 | 74 72 28 66 64 69 64 78 | (cklvlp|tr(fdidx|
|00000bb0| 2c 20 72 6f 6f 74 70 74 | 72 2c 20 69 64 78 62 6c |, rootpt|r, idxbl|
|00000bc0| 6b 2c 20 62 74 73 74 72 | 75 63 74 2e 62 74 69 64 |k, btstr|uct.btid|
|00000bd0| 78 6c 65 6e 2c 20 62 74 | 73 74 72 75 63 74 2e 62 |xlen, bt|struct.b|
|00000be0| 74 6b 65 79 6c 65 6e 2c | 63 6b 6b 65 79 61 6e 73 |tkeylen,|ckkeyans|
|00000bf0| 29 20 3c 20 31 29 7b 0d | 0a 20 20 20 20 20 20 70 |) < 1){.|.      p|
|00000c00| 72 69 6e 74 66 28 22 5c | 6e 42 2b 74 72 65 65 20 |rintf("\|nB+tree |
|00000c10| 65 72 72 6f 72 20 64 65 | 74 65 63 74 65 64 21 21 |error de|tected!!|
|00000c20| 21 20 20 52 65 62 75 69 | 6c 64 20 69 6e 64 65 78 |!  Rebui|ld index|
|00000c30| 20 62 65 66 6f 72 65 20 | 63 6f 6e 74 69 6e 75 69 | before |continui|
|00000c40| 6e 67 2e 22 29 3b 0d 0a | 20 20 20 20 20 20 67 6f |ng.");..|      go|
|00000c50| 74 6f 20 63 6b 62 5f 30 | 65 78 69 74 3b 0d 0a 20 |to ckb_0|exit;.. |
|00000c60| 20 20 7d 0d 0a 0d 0a 20 | 20 20 77 68 69 6c 65 28 |  }.... |  while(|
|00000c70| 21 69 64 78 62 6c 6b 2d | 3e 62 6c 6b 74 79 70 65 |!idxblk-|>blktype|
|00000c80| 20 26 26 20 73 61 76 6c | 76 6c 29 7b 20 20 2f 2a | && savl|vl){  /*|
|00000c90| 20 75 6e 74 69 6c 20 64 | 61 74 61 20 62 6c 6f 63 | until d|ata bloc|
|00000ca0| 6b 20 74 79 70 65 20 3d | 20 31 20 6c 6f 63 61 74 |k type =| 1 locat|
|00000cb0| 65 64 20 20 2a 2f 0d 0a | 20 20 20 20 20 20 67 65 |ed  */..|      ge|
|00000cc0| 74 69 64 78 72 28 66 64 | 69 64 78 2c 20 73 61 76 |tidxr(fd|idx, sav|
|00000cd0| 6c 76 6c 2c 20 69 64 78 | 62 6c 6b 2c 20 62 74 73 |lvl, idx|blk, bts|
|00000ce0| 74 72 75 63 74 2e 62 74 | 69 64 78 6c 65 6e 2c 20 |truct.bt|idxlen, |
|00000cf0| 62 74 73 74 72 75 63 74 | 2e 62 74 6b 65 79 6c 65 |btstruct|.btkeyle|
|00000d00| 6e 29 3b 0d 0a 20 20 20 | 20 20 20 73 61 76 6c 76 |n);..   |   savlv|
|00000d10| 6c 70 74 20 3d 20 69 64 | 78 62 6c 6b 2d 3e 62 74 |lpt = id|xblk->bt|
|00000d20| 70 61 67 65 5b 30 5d 2e | 62 74 70 74 72 3b 0d 0a |page[0].|btptr;..|
|00000d30| 0d 0a 20 20 20 20 20 20 | 73 63 72 5f 63 75 72 73 |..      |scr_curs|
|00000d40| 28 31 32 2c 20 31 36 29 | 3b 0d 0a 20 20 20 20 20 |(12, 16)|;..     |
|00000d50| 20 70 72 69 6e 74 66 28 | 22 25 33 6c 64 20 20 25 | printf(|"%3ld  %|
|00000d60| 37 6c 64 20 22 2c 20 64 | 65 70 74 68 2b 2b 2c 20 |7ld ", d|epth++, |
|00000d70| 73 61 76 6c 76 6c 29 3b | 0d 0a 0d 0a 20 20 20 20 |savlvl);|....    |
|00000d80| 20 20 73 74 72 63 70 79 | 28 6c 61 73 74 6b 65 79 |  strcpy|(lastkey|
|00000d90| 2c 20 22 22 29 3b 20 20 | 20 2f 2a 20 69 6e 69 74 |, "");  | /* init|
|00000da0| 69 61 6c 69 7a 65 20 61 | 74 20 65 61 63 68 20 6c |ialize a|t each l|
|00000db0| 65 76 65 6c 20 2a 2f 0d | 0a 0d 0a 20 20 20 20 20 |evel */.|...     |
|00000dc0| 20 69 66 20 28 63 6b 6c | 76 6c 70 74 72 28 66 64 | if (ckl|vlptr(fd|
|00000dd0| 69 64 78 2c 20 73 61 76 | 6c 76 6c 2c 20 69 64 78 |idx, sav|lvl, idx|
|00000de0| 62 6c 6b 2c 20 62 74 73 | 74 72 75 63 74 2e 62 74 |blk, bts|truct.bt|
|00000df0| 69 64 78 6c 65 6e 2c 20 | 62 74 73 74 72 75 63 74 |idxlen, |btstruct|
|00000e00| 2e 62 74 6b 65 79 6c 65 | 6e 2c 63 6b 6b 65 79 61 |.btkeyle|n,ckkeya|
|00000e10| 6e 73 29 20 3c 20 31 29 | 7b 0d 0a 20 20 20 20 20 |ns) < 1)|{..     |
|00000e20| 20 20 20 20 70 72 69 6e | 74 66 28 22 5c 6e 42 2b |    prin|tf("\nB+|
|00000e30| 74 72 65 65 20 65 72 72 | 6f 72 20 64 65 74 65 63 |tree err|or detec|
|00000e40| 74 65 64 21 21 21 20 20 | 52 65 62 75 69 6c 64 20 |ted!!!  |Rebuild |
|00000e50| 69 6e 64 65 78 20 62 65 | 66 6f 72 65 20 63 6f 6e |index be|fore con|
|00000e60| 74 69 6e 75 69 6e 67 2e | 22 29 3b 0d 0a 20 20 20 |tinuing.|");..   |
|00000e70| 20 20 20 20 20 20 67 6f | 74 6f 20 63 6b 62 5f 30 |      go|to ckb_0|
|00000e80| 65 78 69 74 3b 0d 0a 20 | 20 20 20 20 20 7d 0d 0a |exit;.. |     }..|
|00000e90| 20 20 20 20 20 20 73 61 | 76 6c 76 6c 20 3d 20 73 |      sa|vlvl = s|
|00000ea0| 61 76 6c 76 6c 70 74 3b | 0d 0a 20 20 20 7d 0d 0a |avlvlpt;|..   }..|
|00000eb0| 0d 0a 20 20 20 2f 2a 20 | 6b 65 79 69 63 6e 74 20 |..   /* |keyicnt |
|00000ec0| 69 6e 63 6c 75 64 65 73 | 20 74 68 65 20 6e 75 6c |includes| the nul|
|00000ed0| 6c 20 63 65 6c 6c 20 37 | 46 20 2a 2f 0d 0a 20 20 |l cell 7|F */..  |
|00000ee0| 20 70 72 69 6e 74 66 28 | 22 5c 6e 5c 6e 25 73 20 | printf(|"\n\n%s |
|00000ef0| 63 68 65 63 6b 73 20 6f | 75 74 20 4f 2e 4b 2e 22 |checks o|ut O.K."|
|00000f00| 2c 62 74 73 74 72 75 63 | 74 2e 62 74 6e 61 6d 65 |,btstruc|t.btname|
|00000f10| 29 3b 0d 0a 20 20 20 70 | 72 69 6e 74 66 28 22 5c |);..   p|rintf("\|
|00000f20| 6e 4b 65 79 20 63 6f 75 | 6e 74 20 3d 20 25 6c 64 |nKey cou|nt = %ld|
|00000f30| 22 2c 20 6b 65 79 69 63 | 6e 74 2d 31 29 3b 0d 0a |", keyic|nt-1);..|
|00000f40| 20 20 20 70 72 69 6e 74 | 66 28 22 5c 6e 44 61 74 |   print|f("\nDat|
|00000f50| 61 20 6e 6f 64 65 73 20 | 3d 20 25 6c 64 20 20 20 |a nodes |= %ld   |
|00000f60| 49 6e 64 65 78 20 6e 6f | 64 65 73 20 3d 20 25 6c |Index no|des = %l|
|00000f70| 64 20 20 20 54 6f 74 61 | 6c 20 6e 6f 64 65 73 20 |d   Tota|l nodes |
|00000f80| 69 6e 20 74 72 65 65 20 | 3d 20 25 6c 64 20 22 2c |in tree |= %ld ",|
|00000f90| 0d 0a 20 20 20 20 20 20 | 20 20 20 69 64 78 64 63 |..      |   idxdc|
|00000fa0| 6e 74 2c 20 69 64 78 74 | 63 6e 74 20 2d 20 69 64 |nt, idxt|cnt - id|
|00000fb0| 78 64 63 6e 74 2c 20 69 | 64 78 74 63 6e 74 29 3b |xdcnt, i|dxtcnt);|
|00000fc0| 0d 0a 20 20 20 70 72 69 | 6e 74 66 28 22 5c 6e 50 |..   pri|ntf("\nP|
|00000fd0| 65 72 63 65 6e 74 20 66 | 75 6c 6c 20 64 61 74 61 |ercent f|ull data|
|00000fe0| 20 6e 6f 64 65 73 20 3d | 20 25 75 20 25 25 22 2c | nodes =| %u %%",|
|00000ff0| 20 20 28 31 30 30 20 2a | 20 6b 65 79 69 63 6e 74 |  (100 *| keyicnt|
|00001000| 29 2f 28 69 64 78 64 63 | 6e 74 20 2a 20 62 74 73 |)/(idxdc|nt * bts|
|00001010| 74 72 75 63 74 2e 62 74 | 63 65 6c 6c 73 29 20 29 |truct.bt|cells) )|
|00001020| 3b 0d 0a 20 20 20 70 72 | 69 6e 74 66 28 22 5c 6e |;..   pr|intf("\n|
|00001030| 41 76 65 72 61 67 65 20 | 63 65 6c 6c 73 20 70 65 |Average |cells pe|
|00001040| 72 20 6e 6f 64 65 20 3d | 20 25 75 20 22 2c 20 6b |r node =| %u ", k|
|00001050| 65 79 69 63 6e 74 2f 69 | 64 78 64 63 6e 74 29 3b |eyicnt/i|dxdcnt);|
|00001060| 0d 0a 20 20 20 70 72 69 | 6e 74 66 28 22 5c 74 4d |..   pri|ntf("\tM|
|00001070| 61 78 69 6d 75 6d 20 63 | 65 6c 6c 73 20 70 65 72 |aximum c|ells per|
|00001080| 20 6e 6f 64 65 20 3d 20 | 25 75 5c 6e 22 2c 20 62 | node = |%u\n", b|
|00001090| 74 73 74 72 75 63 74 2e | 62 74 63 65 6c 6c 73 29 |tstruct.|btcells)|
|000010a0| 3b 0d 0a 0d 0a 20 20 20 | 2f 2a 2a 2a 2a 2a 2a 2a |;....   |/*******|
|000010b0| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|000010c0| 2a 0d 0a 20 20 20 70 72 | 69 6e 74 66 28 22 5c 6e |*..   pr|intf("\n|
|000010d0| 5c 6e 50 65 72 63 65 6e | 74 20 66 75 6c 6c 20 65 |\nPercen|t full e|
|000010e0| 6e 74 69 72 65 20 74 72 | 65 65 3d 20 25 34 2e 32 |ntire tr|ee= %4.2|
|000010f0| 66 3b 20 20 41 76 65 72 | 61 67 65 20 63 65 6c 6c |f;  Aver|age cell|
|00001100| 73 20 70 65 72 20 6e 6f | 64 65 20 3d 20 25 36 2e |s per no|de = %6.|
|00001110| 32 66 3b 20 22 2c 0d 0a | 20 20 20 20 20 20 28 64 |2f; ",..|      (d|
|00001120| 6f 75 62 6c 65 29 20 28 | 28 64 6f 75 62 6c 65 29 |ouble) (|(double)|
|00001130| 20 28 6b 65 79 69 63 6e | 74 2f 69 64 78 74 63 6e | (keyicn|t/idxtcn|
|00001140| 74 29 2f 62 74 73 74 72 | 75 63 74 2e 62 74 63 65 |t)/btstr|uct.btce|
|00001150| 6c 6c 73 29 20 2a 20 31 | 30 30 2c 20 28 64 6f 75 |lls) * 1|00, (dou|
|00001160| 62 6c 65 29 20 28 6b 65 | 79 69 63 6e 74 2f 69 64 |ble) (ke|yicnt/id|
|00001170| 78 74 63 6e 74 29 29 3b | 0d 0a 20 20 20 2a 2a 2a |xtcnt));|..   ***|
|00001180| 2a 2a 2a 2a 2a 2a 2a 2a | 2a 2a 2a 2a 2a 2a 2a 2a |********|********|
|00001190| 2a 2a 2f 0d 0a 0d 0a 63 | 6b 62 5f 30 65 78 69 74 |**/....c|kb_0exit|
|000011a0| 3a 0d 0a 20 20 20 46 52 | 45 45 28 6c 61 73 74 6b |:..   FR|EE(lastk|
|000011b0| 65 79 29 3b 0d 0a 20 20 | 20 66 72 65 65 6b 65 79 |ey);..  | freekey|
|000011c0| 73 28 69 64 78 62 6c 6b | 29 3b 0d 0a 20 20 20 46 |s(idxblk|);..   F|
|000011d0| 52 45 45 28 69 64 78 62 | 6c 6b 29 3b 0d 0a 20 20 |REE(idxb|lk);..  |
|000011e0| 20 63 6c 6f 73 65 28 66 | 64 69 64 78 29 3b 0d 0a | close(f|didx);..|
|000011f0| 20 20 20 62 74 72 74 65 | 72 6d 28 26 62 74 73 74 |   btrte|rm(&btst|
|00001200| 72 75 63 74 29 3b 0d 0a | 20 20 20 77 63 6c 6f 73 |ruct);..|   wclos|
|00001210| 65 28 29 3b 20 20 20 2f | 2a 20 63 6c 6f 73 65 20 |e();   /|* close |
|00001220| 41 6d 69 67 61 20 77 69 | 6e 64 6f 77 20 2a 2f 0d |Amiga wi|ndow */.|
|00001230| 0a 7d 0d 0a 0d 0a 2f 2a | 20 63 68 65 63 6b 20 65 |.}..../*| check e|
|00001240| 61 63 68 20 6e 6f 64 65 | 20 66 6f 72 20 70 72 6f |ach node| for pro|
|00001250| 70 65 72 20 66 6f 72 77 | 61 72 64 20 61 6e 64 20 |per forw|ard and |
|00001260| 62 61 63 6b 77 61 72 64 | 20 70 6f 69 6e 74 65 72 |backward| pointer|
|00001270| 73 20 2a 2f 0d 0a 0d 0a | 69 6e 74 20 63 6b 6c 76 |s */....|int cklv|
|00001280| 6c 70 74 72 28 66 64 2c | 20 69 64 78 70 74 72 2c |lptr(fd,| idxptr,|
|00001290| 20 69 64 78 62 6c 6b 2c | 20 69 64 78 6c 65 6e 2c | idxblk,| idxlen,|
|000012a0| 20 6b 65 79 6c 65 6e 2c | 20 63 6b 6b 65 79 66 6c | keylen,| ckkeyfl|
|000012b0| 29 20 0d 0a 69 6e 74 20 | 66 64 2c 20 63 6b 6b 65 |) ..int |fd, ckke|
|000012c0| 79 66 6c 3b 0d 0a 6c 6f | 6e 67 20 69 64 78 70 74 |yfl;..lo|ng idxpt|
|000012d0| 72 3b 0d 0a 75 6e 73 69 | 67 6e 65 64 20 69 64 78 |r;..unsi|gned idx|
|000012e0| 6c 65 6e 2c 20 6b 65 79 | 6c 65 6e 3b 0d 0a 73 74 |len, key|len;..st|
|000012f0| 72 75 63 74 20 62 74 69 | 64 78 62 6c 6b 20 2a 69 |ruct bti|dxblk *i|
|00001300| 64 78 62 6c 6b 3b 0d 0a | 7b 0d 0a 20 20 20 69 6e |dxblk;..|{..   in|
|00001310| 74 20 6d 6f 72 65 69 64 | 78 20 3d 20 31 2c 20 63 |t moreid|x = 1, c|
|00001320| 6b 6b 65 79 73 28 29 3b | 0d 0a 20 20 20 6c 6f 6e |kkeys();|..   lon|
|00001330| 67 20 73 61 76 63 75 72 | 70 74 2c 20 73 61 76 66 |g savcur|pt, savf|
|00001340| 77 64 70 74 3b 0d 0a 0d | 0a 20 20 20 73 61 76 63 |wdpt;...|.   savc|
|00001350| 75 72 70 74 20 3d 20 69 | 64 78 70 74 72 3b 0d 0a |urpt = i|dxptr;..|
|00001360| 20 20 20 20 69 64 78 74 | 63 6e 74 2b 2b 3b 0d 0a |    idxt|cnt++;..|
|00001370| 0d 0a 20 20 20 69 66 28 | 69 64 78 62 6c 6b 2d 3e |..   if(|idxblk->|
|00001380| 62 77 64 70 61 67 65 20 | 3e 20 31 4c 29 7b 20 20 |bwdpage |> 1L){  |
|00001390| 20 2f 2a 20 74 68 65 20 | 62 77 64 70 61 67 65 20 | /* the |bwdpage |
|000013a0| 66 6f 72 20 74 68 65 20 | 66 69 72 73 74 20 6e 6f |for the |first no|
|000013b0| 64 65 20 73 68 6f 75 6c | 64 20 62 65 20 30 20 2a |de shoul|d be 0 *|
|000013c0| 2f 0d 0a 20 20 20 20 20 | 20 70 72 69 6e 74 66 28 |/..     | printf(|
|000013d0| 22 5c 6e 46 69 72 73 74 | 20 62 61 63 6b 77 61 72 |"\nFirst| backwar|
|000013e0| 64 20 70 6f 69 6e 74 65 | 72 20 69 73 20 69 6e 76 |d pointe|r is inv|
|000013f0| 61 6c 69 64 2e 22 29 3b | 0d 0a 20 20 20 20 20 20 |alid.");|..      |
|00001400| 72 65 74 75 72 6e 28 2d | 31 29 3b 0d 0a 20 20 20 |return(-|1);..   |
|00001410| 7d 0d 0a 0d 0a 20 20 20 | 6b 65 79 69 63 6e 74 20 |}....   |keyicnt |
|00001420| 3d 20 69 64 78 64 63 6e | 74 20 3d 20 30 4c 3b 0d |= idxdcn|t = 0L;.|
|00001430| 0a 0d 0a 20 20 20 77 68 | 69 6c 65 28 6d 6f 72 65 |...   wh|ile(more|
|00001440| 69 64 78 29 7b 0d 0a 20 | 20 20 20 20 20 69 66 28 |idx){.. |     if(|
|00001450| 69 64 78 62 6c 6b 2d 3e | 62 6c 6b 74 79 70 65 29 |idxblk->|blktype)|
|00001460| 7b 20 20 20 20 20 20 2f | 2a 20 63 6f 75 6e 74 20 |{      /|* count |
|00001470| 6b 65 79 73 20 6f 6e 20 | 6c 65 61 66 20 6e 6f 64 |keys on |leaf nod|
|00001480| 65 20 2a 2f 0d 0a 20 20 | 20 20 20 20 20 20 20 69 |e */..  |       i|
|00001490| 64 78 64 63 6e 74 2b 2b | 3b 20 20 20 20 20 20 20 |dxdcnt++|;       |
|000014a0| 20 20 20 20 20 20 20 20 | 20 20 20 2f 2a 20 63 6f |        |   /* co|
|000014b0| 75 6e 74 20 6c 65 61 66 | 20 6e 6f 64 65 73 20 2a |unt leaf| nodes *|
|000014c0| 2f 0d 0a 20 20 20 20 20 | 20 20 20 20 6b 65 79 69 |/..     |    keyi|
|000014d0| 63 6e 74 20 2b 3d 20 69 | 64 78 62 6c 6b 2d 3e 63 |cnt += i|dxblk->c|
|000014e0| 65 6c 6c 69 63 6e 74 3b | 20 20 20 20 2f 2a 20 61 |ellicnt;|    /* a|
|000014f0| 63 63 75 6d 75 6c 61 74 | 65 20 6b 65 79 20 63 6f |ccumulat|e key co|
|00001500| 75 6e 74 20 20 20 20 2a | 2f 0d 0a 20 20 20 20 20 |unt    *|/..     |
|00001510| 20 20 20 20 73 63 72 5f | 63 75 72 73 28 31 32 2c |    scr_|curs(12,|
|00001520| 20 33 30 29 3b 0d 0a 20 | 20 20 20 20 20 20 20 20 | 30);.. |        |
|00001530| 70 72 69 6e 74 66 28 22 | 25 38 6c 64 22 2c 20 6b |printf("|%8ld", k|
|00001540| 65 79 69 63 6e 74 20 2d | 20 31 29 3b 0d 0a 20 20 |eyicnt -| 1);..  |
|00001550| 20 20 20 20 7d 0d 0a 0d | 0a 20 20 20 20 20 20 69 |    }...|.      i|
|00001560| 66 28 63 6b 6b 65 79 66 | 6c 29 20 20 20 20 20 20 |f(ckkeyf|l)      |
|00001570| 20 20 20 2f 2a 20 63 68 | 65 63 6b 20 6b 65 79 73 |   /* ch|eck keys|
|00001580| 20 77 69 74 68 69 6e 20 | 69 6e 64 65 78 20 62 6c | within |index bl|
|00001590| 6f 63 6b 20 2a 2f 0d 0a | 20 20 20 20 20 20 20 20 |ock */..|        |
|000015a0| 20 69 66 20 28 63 6b 6b | 65 79 73 28 69 64 78 62 | if (ckk|eys(idxb|
|000015b0| 6c 6b 2c 20 6b 65 79 6c | 65 6e 29 20 3c 20 31 29 |lk, keyl|en) < 1)|
|000015c0| 20 20 20 0d 0a 20 20 20 | 20 20 20 20 20 20 20 20 |   ..   |        |
|000015d0| 20 72 65 74 75 72 6e 28 | 2d 31 29 3b 0d 0a 0d 0a | return(|-1);....|
|000015e0| 20 20 20 20 20 20 69 66 | 28 20 28 73 61 76 66 77 |      if|( (savfw|
|000015f0| 64 70 74 20 3d 20 69 64 | 78 62 6c 6b 2d 3e 66 77 |dpt = id|xblk->fw|
|00001600| 64 70 61 67 65 29 20 3e | 20 31 4c 29 0d 0a 20 20 |dpage) >| 1L)..  |
|00001610| 20 20 20 20 7b 0d 0a 20 | 20 20 20 20 20 20 20 20 |    {.. |        |
|00001620| 67 65 74 69 64 78 72 28 | 66 64 2c 20 69 64 78 62 |getidxr(|fd, idxb|
|00001630| 6c 6b 2d 3e 66 77 64 70 | 61 67 65 2c 20 69 64 78 |lk->fwdp|age, idx|
|00001640| 62 6c 6b 2c 20 69 64 78 | 6c 65 6e 2c 20 6b 65 79 |blk, idx|len, key|
|00001650| 6c 65 6e 29 3b 0d 0a 0d | 0a 20 20 20 20 20 20 20 |len);...|.       |
|00001660| 20 20 73 63 72 5f 63 75 | 72 73 28 31 32 2c 20 32 |  scr_cu|rs(12, 2|
|00001670| 31 29 3b 0d 0a 20 20 20 | 20 20 20 20 20 20 70 72 |1);..   |      pr|
|00001680| 69 6e 74 66 28 22 25 37 | 6c 64 22 2c 20 69 64 78 |intf("%7|ld", idx|
|00001690| 62 6c 6b 2d 3e 66 77 64 | 70 61 67 65 29 3b 0d 0a |blk->fwd|page);..|
|000016a0| 0d 0a 20 20 20 20 20 20 | 20 20 20 20 20 20 69 64 |..      |      id|
|000016b0| 78 74 63 6e 74 2b 2b 3b | 0d 0a 0d 0a 20 20 20 20 |xtcnt++;|....    |
|000016c0| 20 20 20 20 20 69 66 28 | 69 64 78 62 6c 6b 2d 3e |     if(|idxblk->|
|000016d0| 62 77 64 70 61 67 65 20 | 21 3d 20 73 61 76 63 75 |bwdpage |!= savcu|
|000016e0| 72 70 74 29 7b 20 20 20 | 2f 2a 20 64 6f 65 73 6e |rpt){   |/* doesn|
|000016f0| 27 74 20 70 6f 69 6e 74 | 20 62 61 63 6b 20 2a 2f |'t point| back */|
|00001700| 0d 0a 20 20 20 20 20 20 | 20 20 20 20 20 20 70 72 |..      |      pr|
|00001710| 69 6e 74 66 28 22 5c 6e | 42 61 63 6b 77 61 72 64 |intf("\n|Backward|
|00001720| 20 70 6f 69 6e 74 65 72 | 20 69 73 20 69 6e 76 61 | pointer| is inva|
|00001730| 6c 69 64 2e 22 29 3b 0d | 0a 20 20 20 20 20 20 20 |lid.");.|.       |
|00001740| 20 20 20 20 20 72 65 74 | 75 72 6e 28 2d 31 29 3b |     ret|urn(-1);|
|00001750| 0d 0a 20 20 20 20 20 20 | 20 20 20 7d 0d 0a 0d 0a |..      |   }....|
|00001760| 20 20 20 20 20 20 20 20 | 20 73 61 76 63 75 72 70 |        | savcurp|
|00001770| 74 20 3d 20 73 61 76 66 | 77 64 70 74 3b 20 20 20 |t = savf|wdpt;   |
|00001780| 20 20 20 2f 2a 20 73 61 | 76 65 20 74 68 65 20 6e |   /* sa|ve the n|
|00001790| 65 77 20 63 75 72 72 65 | 6e 74 20 70 6f 73 69 74 |ew curre|nt posit|
|000017a0| 69 6f 6e 20 2a 2f 0d 0a | 20 20 20 20 20 20 7d 0d |ion */..|      }.|
|000017b0| 0a 20 20 20 20 20 20 65 | 6c 73 65 0d 0a 20 20 20 |.      e|lse..   |
|000017c0| 20 20 20 20 20 20 6d 6f | 72 65 69 64 78 20 3d 20 |      mo|reidx = |
|000017d0| 30 3b 0d 0a 20 20 20 7d | 0d 0a 0d 0a 20 20 20 72 |0;..   }|....   r|
|000017e0| 65 74 75 72 6e 28 31 29 | 3b 0d 0a 7d 0d 0a 0d 0a |eturn(1)|;..}....|
|000017f0| 2f 2a 20 63 68 65 63 6b | 20 69 6e 64 65 78 20 62 |/* check| index b|
|00001800| 6c 6f 63 6b 20 6b 65 79 | 73 20 66 6f 72 20 70 72 |lock key|s for pr|
|00001810| 6f 70 65 72 20 73 65 71 | 75 65 6e 63 65 20 2a 2f |oper seq|uence */|
|00001820| 0d 0a 0d 0a 69 6e 74 20 | 63 6b 6b 65 79 73 28 69 |....int |ckkeys(i|
|00001830| 64 78 62 6c 6b 2c 20 6b | 65 79 6c 65 6e 29 0d 0a |dxblk, k|eylen)..|
|00001840| 73 74 72 75 63 74 20 62 | 74 69 64 78 62 6c 6b 20 |struct b|tidxblk |
|00001850| 2a 69 64 78 62 6c 6b 3b | 0d 0a 75 6e 73 69 67 6e |*idxblk;|..unsign|
|00001860| 65 64 20 69 6e 74 20 6b | 65 79 6c 65 6e 3b 0d 0a |ed int k|eylen;..|
|00001870| 7b 0d 0a 20 20 20 65 78 | 74 65 72 6e 20 63 68 61 |{..   ex|tern cha|
|00001880| 72 20 2a 73 74 72 63 70 | 79 28 29 3b 0d 0a 20 20 |r *strcp|y();..  |
|00001890| 20 72 65 67 69 73 74 65 | 72 20 69 6e 74 20 6d 3b | registe|r int m;|
|000018a0| 0d 0a 0d 0a 20 20 20 69 | 66 20 28 73 74 72 63 6d |....   i|f (strcm|
|000018b0| 70 28 6c 61 73 74 6b 65 | 79 2c 69 64 78 62 6c 6b |p(lastke|y,idxblk|
|000018c0| 2d 3e 62 74 70 61 67 65 | 5b 30 5d 2e 73 6b 65 79 |->btpage|[0].skey|
|000018d0| 6e 6d 65 29 20 3e 20 30 | 29 7b 0d 0a 20 20 20 20 |nme) > 0|){..    |
|000018e0| 20 20 70 72 69 6e 74 66 | 28 22 5c 6e 4b 65 79 73 |  printf|("\nKeys|
|000018f0| 20 6f 75 74 20 6f 66 20 | 73 65 71 75 65 6e 63 65 | out of |sequence|
|00001900| 20 62 65 74 77 65 65 6e | 20 69 6e 64 65 78 20 70 | between| index p|
|00001910| 61 67 65 73 2e 22 29 3b | 0d 0a 20 20 20 20 20 20 |ages.");|..      |
|00001920| 72 65 74 75 72 6e 28 2d | 31 29 3b 20 20 20 20 20 |return(-|1);     |
|00001930| 20 2f 2a 20 6b 65 79 73 | 20 6f 75 74 20 6f 66 20 | /* keys| out of |
|00001940| 73 65 71 75 65 6e 63 65 | 20 62 65 74 77 65 65 6e |sequence| between|
|00001950| 20 69 6e 64 65 78 20 70 | 61 67 65 73 20 2a 2f 0d | index p|ages */.|
|00001960| 0a 20 20 20 7d 0d 0a 0d | 0a 20 20 20 69 66 20 28 |.   }...|.   if (|
|00001970| 73 74 72 6c 65 6e 28 69 | 64 78 62 6c 6b 2d 3e 62 |strlen(i|dxblk->b|
|00001980| 74 70 61 67 65 5b 30 5d | 2e 73 6b 65 79 6e 6d 65 |tpage[0]|.skeynme|
|00001990| 29 20 3e 20 6b 65 79 6c | 65 6e 29 7b 0d 0a 20 20 |) > keyl|en){..  |
|000019a0| 20 20 20 20 70 72 69 6e | 74 66 28 22 5c 6e 4b 65 |    prin|tf("\nKe|
|000019b0| 79 20 69 73 20 6e 6f 74 | 20 70 72 6f 70 65 72 6c |y is not| properl|
|000019c0| 79 20 6e 75 6c 6c 20 74 | 65 72 6d 69 6e 61 74 65 |y null t|erminate|
|000019d0| 64 2e 22 29 3b 0d 0a 20 | 20 20 20 20 20 72 65 74 |d.");.. |     ret|
|000019e0| 75 72 6e 28 2d 31 29 3b | 20 20 20 20 20 20 2f 2a |urn(-1);|      /*|
|000019f0| 20 6b 65 79 20 69 73 20 | 6e 6f 74 20 70 72 6f 70 | key is |not prop|
|00001a00| 65 72 6c 79 20 6e 75 6c | 6c 20 74 65 72 6d 69 6e |erly nul|l termin|
|00001a10| 61 74 65 64 20 2a 2f 0d | 0a 20 20 20 7d 0d 0a 0d |ated */.|.   }...|
|00001a20| 0a 20 20 20 66 6f 72 28 | 6d 20 3d 20 31 3b 20 6d |.   for(|m = 1; m|
|00001a30| 20 3c 20 69 64 78 62 6c | 6b 2d 3e 63 65 6c 6c 69 | < idxbl|k->celli|
|00001a40| 63 6e 74 3b 20 6d 2b 2b | 29 7b 0d 0a 20 20 20 20 |cnt; m++|){..    |
|00001a50| 20 20 69 66 20 28 73 74 | 72 63 6d 70 28 69 64 78 |  if (st|rcmp(idx|
|00001a60| 62 6c 6b 2d 3e 62 74 70 | 61 67 65 5b 6d 2d 31 5d |blk->btp|age[m-1]|
|00001a70| 2e 73 6b 65 79 6e 6d 65 | 2c 69 64 78 62 6c 6b 2d |.skeynme|,idxblk-|
|00001a80| 3e 62 74 70 61 67 65 5b | 6d 5d 2e 73 6b 65 79 6e |>btpage[|m].skeyn|
|00001a90| 6d 65 29 20 3e 20 30 29 | 7b 0d 0a 20 20 20 20 20 |me) > 0)|{..     |
|00001aa0| 20 20 20 20 70 72 69 6e | 74 66 28 22 5c 6e 4b 65 |    prin|tf("\nKe|
|00001ab0| 79 73 20 6f 75 74 20 6f | 66 20 73 65 71 75 65 6e |ys out o|f sequen|
|00001ac0| 63 65 20 62 65 74 77 65 | 65 6e 20 69 6e 64 65 78 |ce betwe|en index|
|00001ad0| 20 70 61 67 65 73 2e 22 | 29 3b 0d 0a 20 20 20 20 | pages."|);..    |
|00001ae0| 20 20 20 20 20 72 65 74 | 75 72 6e 28 2d 31 29 3b |     ret|urn(-1);|
|00001af0| 20 20 20 20 20 20 20 20 | 20 2f 2a 20 6b 65 79 73 |        | /* keys|
|00001b00| 20 6f 75 74 20 6f 66 20 | 73 65 71 75 65 6e 63 65 | out of |sequence|
|00001b10| 20 20 20 20 2a 2f 0d 0a | 20 20 20 20 20 20 7d 0d |    */..|      }.|
|00001b20| 0a 0d 0a 20 20 20 20 20 | 20 69 66 20 28 73 74 72 |...     | if (str|
|00001b30| 6c 65 6e 28 69 64 78 62 | 6c 6b 2d 3e 62 74 70 61 |len(idxb|lk->btpa|
|00001b40| 67 65 5b 6d 5d 2e 73 6b | 65 79 6e 6d 65 29 20 3e |ge[m].sk|eynme) >|
|00001b50| 20 6b 65 79 6c 65 6e 29 | 7b 0d 0a 20 20 20 20 20 | keylen)|{..     |
|00001b60| 20 20 20 20 70 72 69 6e | 74 66 28 22 5c 6e 4b 65 |    prin|tf("\nKe|
|00001b70| 79 20 69 73 20 6e 6f 74 | 20 70 72 6f 70 65 72 6c |y is not| properl|
|00001b80| 79 20 6e 75 6c 6c 20 74 | 65 72 6d 69 6e 61 74 65 |y null t|erminate|
|00001b90| 64 2e 22 29 3b 0d 0a 20 | 20 20 20 20 20 20 20 20 |d.");.. |        |
|00001ba0| 72 65 74 75 72 6e 28 2d | 31 29 3b 20 20 20 20 20 |return(-|1);     |
|00001bb0| 20 2f 2a 20 6b 65 79 20 | 69 73 20 6e 6f 74 20 70 | /* key |is not p|
|00001bc0| 72 6f 70 65 72 6c 79 20 | 6e 75 6c 6c 20 74 65 72 |roperly |null ter|
|00001bd0| 6d 69 6e 61 74 65 64 20 | 2a 2f 0d 0a 20 20 20 20 |minated |*/..    |
|00001be0| 20 20 7d 0d 0a 20 20 20 | 7d 0d 0a 0d 0a 20 20 20 |  }..   |}....   |
|00001bf0| 73 74 72 63 70 79 28 6c | 61 73 74 6b 65 79 2c 20 |strcpy(l|astkey, |
|00001c00| 69 64 78 62 6c 6b 2d 3e | 62 74 70 61 67 65 5b 69 |idxblk->|btpage[i|
|00001c10| 64 78 62 6c 6b 2d 3e 63 | 65 6c 6c 69 63 6e 74 20 |dxblk->c|ellicnt |
|00001c20| 2d 20 31 5d 2e 73 6b 65 | 79 6e 6d 65 29 3b 0d 0a |- 1].ske|ynme);..|
|00001c30| 0d 0a 20 20 20 20 73 63 | 72 5f 63 75 72 73 28 31 |..    sc|r_curs(1|
|00001c40| 34 2c 20 32 38 29 3b 0d | 0a 20 20 20 20 70 72 69 |4, 28);.|.    pri|
|00001c50| 6e 74 66 28 22 25 2d 31 | 32 2e 31 32 73 20 22 2c |ntf("%-1|2.12s ",|
|00001c60| 20 6c 61 73 74 6b 65 79 | 29 3b 0d 0a 0d 0a 20 20 | lastkey|);....  |
|00001c70| 20 72 65 74 75 72 6e 28 | 31 29 3b 0d 0a 7d 0d 0a | return(|1);..}..|
+--------+-------------------------+-------------------------+--------+--------+