X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=rset%2Frsisam.c;h=e89f7e8a22097ce4ed6f8fb1bb425a7bb084a0d9;hb=e6b40b4f140e8f7348fff1f7be78ac78946421ff;hp=ec1e20339ce1ecb3cb62cc2a1fd2e51183652b9e;hpb=40ca1d08c1d83b92e0b90951d918b252c61c63b2;p=idzebra-moved-to-github.git diff --git a/rset/rsisam.c b/rset/rsisam.c index ec1e203..e89f7e8 100644 --- a/rset/rsisam.c +++ b/rset/rsisam.c @@ -1,75 +1,55 @@ -/* - * Copyright (C) 1994-1995, Index Data I/S - * All rights reserved. - * Sebastian Hammer, Adam Dickmeiss - * - * $Log: rsisam.c,v $ - * Revision 1.11 1995-10-06 14:38:05 adam - * New result set method: r_score. - * Local no (sysno) and score is transferred to retrieveCtrl. - * - * Revision 1.10 1995/09/08 14:52:42 adam - * Work on relevance feedback. - * - * Revision 1.9 1995/09/07 13:58:43 adam - * New parameter: result-set file descriptor (RSFD) to support multiple - * positions within the same result-set. - * Boolean operators: and, or, not implemented. - * - * Revision 1.8 1995/09/06 16:11:56 adam - * More work on boolean sets. - * - * Revision 1.7 1995/09/06 10:35:44 adam - * Null set implemented. - * - * Revision 1.6 1995/09/05 11:43:24 adam - * Complete version of temporary sets. Not tested yet though. - * - * Revision 1.5 1995/09/04 12:33:56 adam - * Various cleanup. YAZ util used instead. - * - * Revision 1.4 1995/09/04 09:10:55 adam - * Minor changes. - * - * Revision 1.3 1994/11/22 13:15:37 quinn - * Simple - * - * Revision 1.2 1994/11/04 14:53:12 quinn - * Work - * - */ +/* $Id: rsisam.c,v 1.25 2004-08-03 12:15:45 heikki Exp $ + Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002 + Index Data Aps + +This file is part of the Zebra server. + +Zebra is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 2, or (at your option) any later +version. + +Zebra is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with Zebra; see the file LICENSE.zebra. If not, write to the +Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA +02111-1307, USA. +*/ + #include #include +#include #include -#include -static rset_control *r_create(const struct rset_control *sel, void *parms); -static RSFD r_open (rset_control *ct, int wflag); +static void *r_create(RSET ct, const struct rset_control *sel, void *parms); +static RSFD r_open (RSET ct, int flag); static void r_close (RSFD rfd); -static void r_delete (rset_control *ct); +static void r_delete (RSET ct); static void r_rewind (RSFD rfd); -static int r_count (rset_control *ct); -static int r_read (RSFD rfd, void *buf); +/* static int r_count (RSET ct); */ +static int r_read (RSFD rfd, void *buf, int *term_index); static int r_write (RSFD rfd, const void *buf); -static int r_score (RSFD rfd, int *score); -static const rset_control control = +static const struct rset_control control = { - "ISAM set type", - 0, + "isam", r_create, r_open, r_close, r_delete, r_rewind, - r_count, + rset_default_forward, + /* r_count, */ r_read, r_write, - r_score }; -const rset_control *rset_kind_isam = &control; +const struct rset_control *rset_kind_isam = &control; struct rset_ispt_info { ISPT pt; @@ -83,40 +63,42 @@ struct rset_isam_info { struct rset_ispt_info *ispt_list; }; -static rset_control *r_create(const struct rset_control *sel, void *parms) +static void *r_create(RSET ct, const struct rset_control *sel, void *parms) { - rset_control *newct; - rset_isam_parms *pt = parms; + rset_isam_parms *pt = (rset_isam_parms *) parms; struct rset_isam_info *info; - newct = xmalloc(sizeof(*newct)); - memcpy(newct, sel, sizeof(*sel)); - - if (!(newct->buf = xmalloc (sizeof(struct rset_isam_info)))) - return 0; - info = newct->buf; + ct->flags |= RSET_FLAG_VOLATILE; + info = (struct rset_isam_info *) xmalloc (sizeof(struct rset_isam_info)); info->is = pt->is; info->pos = pt->pos; info->ispt_list = NULL; - return newct; + + ct->no_rset_terms = 1; + ct->rset_terms = (RSET_TERM *) xmalloc (sizeof(*ct->rset_terms)); + ct->rset_terms[0] = pt->rset_term; + return info; } -RSFD r_open (rset_control *ct, int wflag) +RSFD r_open (RSET ct, int flag) { - struct rset_isam_info *info = ct->buf; + struct rset_isam_info *info = (struct rset_isam_info *) ct->buf; struct rset_ispt_info *ptinfo; logf (LOG_DEBUG, "risam_open"); - if (wflag) + if (flag & RSETF_WRITE) { logf (LOG_FATAL, "ISAM set type is read-only"); return NULL; } - ptinfo = xmalloc (sizeof(*ptinfo)); + ptinfo = (struct rset_ispt_info *) xmalloc (sizeof(*ptinfo)); ptinfo->next = info->ispt_list; info->ispt_list = ptinfo; ptinfo->pt = is_position (info->is, info->pos); ptinfo->info = info; + + if (ct->rset_terms[0]->nn < 0) + ct->rset_terms[0]->nn = is_numkeys (ptinfo->pt); return ptinfo; } @@ -130,21 +112,22 @@ static void r_close (RSFD rfd) { is_pt_free ((*ptinfop)->pt); *ptinfop = (*ptinfop)->next; - free (rfd); + xfree (rfd); return; } logf (LOG_FATAL, "r_close but no rfd match!"); assert (0); } -static void r_delete (rset_control *ct) +static void r_delete (RSET ct) { - struct rset_isam_info *info = ct->buf; + struct rset_isam_info *info = (struct rset_isam_info *) ct->buf; logf (LOG_DEBUG, "rsisam_delete"); assert (info->ispt_list == NULL); + rset_term_destroy (ct->rset_terms[0]); + xfree (ct->rset_terms); xfree (info); - xfree (ct); } static void r_rewind (RSFD rfd) @@ -153,13 +136,16 @@ static void r_rewind (RSFD rfd) is_rewind( ((struct rset_ispt_info*) rfd)->pt); } -static int r_count (rset_control *ct) +/* +static int r_count (RSET ct) { return 0; } +*/ -static int r_read (RSFD rfd, void *buf) +static int r_read (RSFD rfd, void *buf, int *term_index) { + *term_index = 0; return is_readkey( ((struct rset_ispt_info*) rfd)->pt, buf); } @@ -168,9 +154,3 @@ static int r_write (RSFD rfd, const void *buf) logf (LOG_FATAL, "ISAM set type is read-only"); return -1; } - -static int r_score (RSFD rfd, int *score) -{ - *score = -1; - return -1; -}