1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1988 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright 1999, 2003 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 /* inverted index definitions */ 32 33 /* postings temporary file long number coding into characters */ 34 #define BASE 95 /* 127 - ' ' */ 35 #define PRECISION 5 /* maximum digits after converting a long */ 36 37 /* inverted index access parameters */ 38 #define INVAVAIL 0 39 #define INVBUSY 1 40 #define INVALONE 2 41 42 /* boolean set operations */ 43 #define OR 3 44 #define AND 4 45 #define NOT 5 46 #define REVERSENOT 6 47 48 /* note that the entire first block is for parameters */ 49 typedef struct { 50 long version; /* inverted index format version */ 51 long filestat; /* file status word */ 52 long sizeblk; /* size of logical block in bytes */ 53 long startbyte; /* first byte of superfinger */ 54 long supsize; /* size of superfinger in bytes */ 55 long cntlsize; /* size of max cntl space (should be a */ 56 /* multiple of BUFSIZ) */ 57 long share; /* flag whether to use shared memory */ 58 } PARAM; 59 60 typedef struct { 61 FILE *invfile; /* the inverted file ptr */ 62 FILE *postfile; /* posting file ptr */ 63 PARAM param; /* control parameters for the file */ 64 char *iindex; /* ptr to space for superindex */ 65 char *logblk; /* ptr to space for a logical block */ 66 long numblk; /* number of block presently at *logblk */ 67 long keypnt; /* number item in present block found */ 68 int swap; /* file endian mistmatch? */ 69 } INVCONTROL; 70 71 typedef struct { 72 short offset; /* offset in this logical block */ 73 unsigned char size; /* size of term */ 74 unsigned char space; /* number of longs of growth space */ 75 long post; /* number of postings for this entry */ 76 } ENTRY; 77 78 typedef struct { 79 long lineoffset; /* source line database offset */ 80 long fcnoffset; /* function name database offset */ 81 long fileindex : 24; /* source file name index */ 82 long type : 8; /* reference type (mark character) */ 83 } POSTING; 84 85 extern long *srcoffset; /* source file name database offsets */ 86 extern int nsrcoffset; /* number of file name database offsets */ 87 88 extern void boolclear(void); 89 extern POSTING *boolfile(INVCONTROL *invcntl, long *num, int bool); 90 extern void invclose(INVCONTROL *invcntl); 91 extern long invfind(INVCONTROL *invcntl, char *searchterm); 92 extern int invforward(INVCONTROL *invcntl); 93 extern int invopen(INVCONTROL *invcntl, char *invname, char *invpost, 94 int stat); 95 extern int invterm(INVCONTROL *invcntl, char *term); 96 extern long invmake(char *invname, char *invpost, FILE *infile); 97