X-Git-Url: http://git.indexdata.com/?p=idzebra-moved-to-github.git;a=blobdiff_plain;f=rset%2Frsisamc.c;h=9e5d426c990e2631f9c3a01571573ff3e9d938c3;hp=7fad179428a7e8f28e7e1f52a17cf1ab7787ec04;hb=d02c4c703a93e0ad3f4ccde4519879f1f57a6824;hpb=33b386a95c0aac273527d596ce1aafa0dc567b7b diff --git a/rset/rsisamc.c b/rset/rsisamc.c index 7fad179..9e5d426 100644 --- a/rset/rsisamc.c +++ b/rset/rsisamc.c @@ -1,153 +1,152 @@ -/* - * Copyright (C) 1994-1998, Index Data I/S - * All rights reserved. - * Sebastian Hammer, Adam Dickmeiss - * - * $Log: rsisamc.c,v $ - * Revision 1.5 1998-03-05 08:36:28 adam - * New result set model. - * - * Revision 1.4 1997/12/18 10:54:25 adam - * New method result set method rs_hits that returns the number of - * hits in result-set (if known). The ranked result set returns real - * number of hits but only when not combined with other operands. - * - * Revision 1.3 1997/10/31 12:37:01 adam - * Code calls xfree() instead of free(). - * - * Revision 1.2 1996/11/08 11:15:57 adam - * Compressed isam fully supported. - * - * Revision 1.1 1996/10/29 13:41:48 adam - * First use of isamc. - * - */ +/* This file is part of the Zebra server. + Copyright (C) 1994-2011 Index Data + +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 this program; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +#if HAVE_CONFIG_H +#include +#endif #include #include -#include -#include +#include +#include +#include -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 ct); -static void r_rewind (RSFD rfd); -static int r_count (RSET ct); -static int r_read (RSFD rfd, void *buf, int *term_index); +static int r_read (RSFD rfd, void *buf, TERMID *term); static int r_write (RSFD rfd, const void *buf); +static void r_pos (RSFD rfd, double *current, double *total); -static const struct rset_control control = +static const struct rset_control control = { "isamc", - r_create, + r_delete, + rset_get_one_term, r_open, r_close, - r_delete, - r_rewind, - r_count, + 0, /* no forward */ + r_pos, r_read, r_write, }; -const struct rset_control *rset_kind_isamc = &control; - struct rset_pp_info { ISAMC_PP pt; - struct rset_pp_info *next; - struct rset_isamc_info *info; + void *buf; }; struct rset_isamc_info { ISAMC is; - ISAMC_P pos; - struct rset_pp_info *ispt_list; + ISAM_P pos; }; -static void *r_create(RSET ct, const struct rset_control *sel, void *parms) +static int log_level = 0; +static int log_level_initialized = 0; + +RSET rsisamc_create(NMEM nmem, struct rset_key_control *kcontrol, + int scope, + ISAMC is, ISAM_P pos, TERMID term) { - rset_isamc_parms *pt = parms; + RSET rnew = rset_create_base(&control, nmem, kcontrol, scope, term, 0, 0); struct rset_isamc_info *info; + if (!log_level_initialized) + { + log_level = yaz_log_module_level("rsisamc"); + log_level_initialized = 1; + } + info = (struct rset_isamc_info *) nmem_malloc(rnew->nmem, sizeof(*info)); + info->is = is; + info->pos = pos; + rnew->priv = info; + yaz_log(log_level, "create: term=%p", term); + return rnew; +} - ct->flags |= RSET_FLAG_VOLATILE; - info = xmalloc (sizeof(*info)); - info->is = pt->is; - info->pos = pt->pos; - info->ispt_list = NULL; - ct->no_rset_terms = 1; - ct->rset_terms = xmalloc (sizeof(*ct->rset_terms)); - ct->rset_terms[0] = pt->rset_term; - return info; +static void r_delete (RSET ct) +{ + yaz_log(log_level, "rsisamc_delete"); } + RSFD r_open (RSET ct, int flag) { - struct rset_isamc_info *info = ct->buf; + struct rset_isamc_info *info = (struct rset_isamc_info *) ct->priv; + RSFD rfd; struct rset_pp_info *ptinfo; - logf (LOG_DEBUG, "risamc_open"); + yaz_log(log_level, "risamc_open"); if (flag & RSETF_WRITE) { - logf (LOG_FATAL, "ISAMC set type is read-only"); - return NULL; + yaz_log(YLOG_FATAL, "ISAMC set type is read-only"); + return NULL; } - ptinfo = xmalloc (sizeof(*ptinfo)); - ptinfo->next = info->ispt_list; - info->ispt_list = ptinfo; - ptinfo->pt = isc_pp_open (info->is, info->pos); - ptinfo->info = info; - if (ct->rset_terms[0]->nn < 0) - ct->rset_terms[0]->nn = isc_pp_num (ptinfo->pt); - return ptinfo; + rfd = rfd_create_base(ct); + if (rfd->priv) + ptinfo = (struct rset_pp_info *)rfd->priv; + else { + ptinfo = (struct rset_pp_info *) nmem_malloc (ct->nmem,sizeof(*ptinfo)); + rfd->priv = ptinfo; + ptinfo->buf = nmem_malloc (ct->nmem,ct->keycontrol->key_size); + } + ptinfo->pt = isamc_pp_open(info->is, info->pos); + return rfd; } static void r_close (RSFD rfd) { - struct rset_isamc_info *info = ((struct rset_pp_info*) rfd)->info; - struct rset_pp_info **ptinfop; - - for (ptinfop = &info->ispt_list; *ptinfop; ptinfop = &(*ptinfop)->next) - if (*ptinfop == rfd) - { - isc_pp_close ((*ptinfop)->pt); - *ptinfop = (*ptinfop)->next; - xfree (rfd); - return; - } - logf (LOG_FATAL, "r_close but no rfd match!"); - assert (0); -} - -static void r_delete (RSET ct) -{ - struct rset_isamc_info *info = ct->buf; + struct rset_pp_info *p = (struct rset_pp_info *)(rfd->priv); - logf (LOG_DEBUG, "rsisamc_delete"); - assert (info->ispt_list == NULL); - rset_term_destroy (ct->rset_terms[0]); - xfree (ct->rset_terms); - xfree (info); + isamc_pp_close(p->pt); } -static void r_rewind (RSFD rfd) -{ - logf (LOG_DEBUG, "rsisamc_rewind"); - abort (); -} -static int r_count (RSET ct) +static int r_read (RSFD rfd, void *buf, TERMID *term) { - return 0; + struct rset_pp_info *p = (struct rset_pp_info *)(rfd->priv); + int r; + r = isamc_pp_read(p->pt, buf); + if (term) + *term = rfd->rset->term; + yaz_log(log_level, "isamc.r_read"); + return r; } -static int r_read (RSFD rfd, void *buf, int *term_index) +static int r_write (RSFD rfd, const void *buf) { - *term_index = 0; - return isc_pp_read( ((struct rset_pp_info*) rfd)->pt, buf); + yaz_log(YLOG_FATAL, "ISAMC set type is read-only"); + return -1; } -static int r_write (RSFD rfd, const void *buf) +static void r_pos (RSFD rfd, double *current, double *total) { - logf (LOG_FATAL, "ISAMC set type is read-only"); - return -1; + *current = -1; /* sorry, not implemented yet */ + *total = -1; } + + + +/* + * Local variables: + * c-basic-offset: 4 + * c-file-style: "Stroustrup" + * indent-tabs-mode: nil + * End: + * vim: shiftwidth=4 tabstop=8 expandtab + */ +