-/*
- * Copyright (C) 1994-1995, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: rstemp.c,v $
- * Revision 1.19 1997-09-04 13:58:57 adam
- * Added O_BINARY for open calls.
- *
- * Revision 1.18 1996/10/29 13:54:52 adam
- * Changed name of setting tempSetDir to setTmpDir.
- *
- * Revision 1.17 1995/12/11 09:15:28 adam
- * New set types: sand/sor/snot - ranked versions of and/or/not in
- * ranked/semi-ranked result sets.
- * Note: the snot not finished yet.
- * New rset member: flag.
- * Bug fix: r_delete in rsrel.c did free bad memory block.
- *
- * Revision 1.16 1995/11/28 14:47:02 adam
- * New setting: tempSetPath. Location of temporary result sets.
- *
- * Revision 1.15 1995/10/12 12:41:58 adam
- * Private info (buf) moved from struct rset_control to struct rset.
- * Bug fixes in relevance.
- *
- * Revision 1.14 1995/10/10 14:00:04 adam
- * Function rset_open changed its wflag parameter to general flags.
- *
- * Revision 1.13 1995/10/06 14:38:06 adam
- * New result set method: r_score.
- * Local no (sysno) and score is transferred to retrieveCtrl.
- *
- * Revision 1.12 1995/09/28 09:52:11 adam
- * xfree/xmalloc used everywhere.
- *
- * Revision 1.11 1995/09/18 14:17:56 adam
- * Bug fixes.
- *
- * Revision 1.10 1995/09/15 14:45:39 adam
- * Bug fixes.
- *
- * Revision 1.9 1995/09/15 09:20:42 adam
- * Bug fixes.
- *
- * Revision 1.8 1995/09/08 14:52:42 adam
- * Work on relevance feedback.
- *
- * Revision 1.7 1995/09/07 13:58:44 adam
- * New parameter: result-set file descriptor (RSFD) to support multiple
- * positions within the same result-set.
- * Boolean operators: and, or, not implemented.
- *
- * Revision 1.6 1995/09/06 16:11:56 adam
- * More work on boolean sets.
- *
- * Revision 1.5 1995/09/05 16:36:59 adam
- * Minor changes.
- *
- * Revision 1.4 1995/09/05 11:43:24 adam
- * Complete version of temporary sets. Not tested yet though.
- *
- * Revision 1.3 1995/09/04 15:20:40 adam
- * More work on temp sets. is_open member removed.
- *
- * Revision 1.2 1995/09/04 09:10:56 adam
- * Minor changes.
- *
- * Revision 1.1 1994/11/04 13:21:30 quinn
- * Working.
- *
- */
+/* $Id: rstemp.c,v 1.42 2004-08-06 12:55:03 adam Exp $
+ Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003
+ 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 <fcntl.h>
#include <assert.h>
+#ifdef WIN32
+#include <io.h>
+#else
#include <unistd.h>
+#endif
+#include <string.h>
#include <sys/types.h>
#include <stdio.h>
#include <zebrautl.h>
#include <rstemp.h>
-static void *r_create(const struct rset_control *sel, void *parms,
- int *flags);
+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);
+/* 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 int temppath_init = 0;
-static char *temppath_root = NULL;
+static void r_pos (RSFD rfd, double *current, double *total);
-static const rset_control control =
+static const struct rset_control control =
{
"temp",
r_create,
r_close,
r_delete,
r_rewind,
- r_count,
+ rset_default_forward,
+ r_pos,
r_read,
r_write,
- r_score
};
-const rset_control *rset_kind_temp = &control;
+const struct rset_control *rset_kind_temp = &control;
struct rset_temp_info {
int fd;
char *buf_mem; /* window buffer */
size_t buf_size; /* size of window */
size_t pos_end; /* last position in set */
- size_t pos_cur; /* current position in set */
size_t pos_buf; /* position of first byte in window */
size_t pos_border; /* position of last byte+1 in window */
int dirty; /* window is dirty */
+ zint hits; /* no of hits */
+ char *temp_path;
+ int (*cmp)(const void *p1, const void *p2);
+ struct rset_temp_rfd *rfd_list;
};
struct rset_temp_rfd {
struct rset_temp_info *info;
struct rset_temp_rfd *next;
+ zint *countp;
+ void *buf;
+ size_t pos_cur; /* current position in set */
+ zint cur; /* number of the current hit */
};
-static void *r_create(const struct rset_control *sel, void *parms, int *flags)
+static void *r_create(RSET ct, const struct rset_control *sel, void *parms)
{
- rset_temp_parms *temp_parms = parms;
+ rset_temp_parms *temp_parms = (rset_temp_parms *) parms;
struct rset_temp_info *info;
- info = xmalloc (sizeof(struct rset_temp_info));
+ info = (struct rset_temp_info *) xmalloc (sizeof(struct rset_temp_info));
info->fd = -1;
info->fname = NULL;
info->key_size = temp_parms->key_size;
info->buf_size = 4096;
- info->buf_mem = xmalloc (info->buf_size);
- info->pos_cur = 0;
+ info->buf_mem = (char *) xmalloc (info->buf_size);
info->pos_end = 0;
info->pos_buf = 0;
info->dirty = 0;
+ info->hits = 0;
+ info->cmp = temp_parms->cmp;
+ info->rfd_list = NULL;
- if (!temppath_init)
+ if (!temp_parms->temp_path)
+ info->temp_path = NULL;
+ else
{
- temppath_init = 1;
- temppath_root = res_get (common_resource, "setTmpDir");
+ info->temp_path = (char *) xmalloc (strlen(temp_parms->temp_path)+1);
+ strcpy (info->temp_path, temp_parms->temp_path);
}
+ ct->no_rset_terms = 1;
+ ct->rset_terms = (RSET_TERM *) xmalloc (sizeof(*ct->rset_terms));
+ ct->rset_terms[0] = temp_parms->rset_term;
+
return info;
}
static RSFD r_open (RSET ct, int flag)
{
- struct rset_temp_info *info = ct->buf;
+ struct rset_temp_info *info = (struct rset_temp_info *) ct->buf;
struct rset_temp_rfd *rfd;
- assert (info->fd == -1);
- if (info->fname)
+ if (info->fd == -1 && info->fname)
{
if (flag & RSETF_WRITE)
info->fd = open (info->fname, O_BINARY|O_RDWR|O_CREAT, 0666);
exit (1);
}
}
- rfd = xmalloc (sizeof(*rfd));
+ rfd = (struct rset_temp_rfd *) xmalloc (sizeof(*rfd));
+ rfd->next = info->rfd_list;
+ info->rfd_list = rfd;
rfd->info = info;
r_rewind (rfd);
+
+ rfd->countp = &ct->rset_terms[0]->count;
+ *rfd->countp = 0;
+ rfd->buf = xmalloc (info->key_size);
+
return rfd;
}
if (!info->fname && mk)
{
- char *s = (char*) tempnam (temppath_root, "zrs");
+#if HAVE_MKSTEMP
+ char template[1024];
- info->fname = xmalloc (strlen(s)+1);
+ if (info->temp_path)
+ sprintf (template, "%s/zrsXXXXXX", info->temp_path);
+ else
+ sprintf (template, "zrsXXXXXX");
+
+ info->fd = mkstemp (template);
+
+ if (info->fd == -1)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "mkstemp %s", template);
+ exit (1);
+ }
+ info->fname = (char *) xmalloc (strlen(template)+1);
+ strcpy (info->fname, template);
+#else
+ char *s = (char*) tempnam (info->temp_path, "zrs");
+ info->fname = (char *) xmalloc (strlen(s)+1);
strcpy (info->fname, s);
logf (LOG_DEBUG, "creating tempfile %s", info->fname);
logf (LOG_FATAL|LOG_ERRNO, "open %s", info->fname);
exit (1);
}
+#endif
}
if (info->fname && info->fd != -1 && info->dirty)
{
- size_t r, count;
+ size_t count;
+ int r;
if (lseek (info->fd, info->pos_buf, SEEK_SET) == -1)
{
count = info->buf_size;
if (count > info->pos_end - info->pos_buf)
count = info->pos_end - info->pos_buf;
- if ((r = write (info->fd, info->buf_mem, count)) < count)
+ if ((r = write (info->fd, info->buf_mem, count)) < (int) count)
{
if (r == -1)
logf (LOG_FATAL|LOG_ERRNO, "read %s", info->fname);
static void r_close (RSFD rfd)
{
struct rset_temp_info *info = ((struct rset_temp_rfd*)rfd)->info;
+ struct rset_temp_rfd **rfdp;
- r_flush (rfd, 0);
- if (info->fname && info->fd != -1)
- {
- close (info->fd);
- info->fd = -1;
- }
+ for (rfdp = &info->rfd_list; *rfdp; rfdp = &(*rfdp)->next)
+ if (*rfdp == rfd)
+ {
+ r_flush (*rfdp, 0);
+ xfree ((*rfdp)->buf);
+
+ *rfdp = (*rfdp)->next;
+ xfree (rfd);
+
+ if (!info->rfd_list && info->fname && info->fd != -1)
+ {
+ close (info->fd);
+ info->fd = -1;
+ }
+ return;
+ }
+ logf (LOG_FATAL, "r_close but no rfd match!");
+ assert (0);
}
static void r_delete (RSET ct)
{
- struct rset_temp_info *info = ct->buf;
+ struct rset_temp_info *info = (struct rset_temp_info*) ct->buf;
if (info->fname)
unlink (info->fname);
- free (info->buf_mem);
+ xfree (info->buf_mem);
logf (LOG_DEBUG, "r_delete: set size %ld", (long) info->pos_end);
if (info->fname)
{
logf (LOG_DEBUG, "r_delete: unlink %s", info->fname);
unlink (info->fname);
- free (info->fname);
+ xfree (info->fname);
}
- free (info);
+ if (info->temp_path)
+ xfree (info->temp_path);
+ rset_term_destroy (ct->rset_terms[0]);
+ xfree (ct->rset_terms);
+ xfree (info);
}
/* r_reread:
if (info->fname)
{
- size_t r, count;
+ size_t count;
+ int r;
- info->pos_border = info->pos_cur + info->buf_size;
+ info->pos_border = ((struct rset_temp_rfd *)rfd)->pos_cur +
+ info->buf_size;
if (info->pos_border > info->pos_end)
info->pos_border = info->pos_end;
count = info->pos_border - info->pos_buf;
logf (LOG_FATAL|LOG_ERRNO, "lseek %s", info->fname);
exit (1);
}
- if ((r = read (info->fd, info->buf_mem, count)) < count)
+ if ((r = read (info->fd, info->buf_mem, count)) < (int) count)
{
if (r == -1)
logf (LOG_FATAL|LOG_ERRNO, "read %s", info->fname);
struct rset_temp_info *info = ((struct rset_temp_rfd*)rfd)->info;
r_flush (rfd, 0);
- info->pos_cur = 0;
+ ((struct rset_temp_rfd *)rfd)->pos_cur = 0;
info->pos_buf = 0;
r_reread (rfd);
+ ((struct rset_temp_rfd *)rfd)->cur=0;
}
+/*
static int r_count (RSET ct)
{
- struct rset_temp_info *info = ct->buf;
+ struct rset_temp_info *info = (struct rset_temp_info *) ct->buf;
return info->pos_end / info->key_size;
}
-
-static int r_read (RSFD rfd, void *buf)
+*/
+static int r_read (RSFD rfd, void *buf, int *term_index)
{
- struct rset_temp_info *info = ((struct rset_temp_rfd*)rfd)->info;
+ struct rset_temp_rfd *mrfd = (struct rset_temp_rfd*) rfd;
+ struct rset_temp_info *info = mrfd->info;
- size_t nc = info->pos_cur + info->key_size;
+ size_t nc = mrfd->pos_cur + info->key_size;
- if (nc > info->pos_border)
+ if (mrfd->pos_cur < info->pos_buf || nc > info->pos_border)
{
if (nc > info->pos_end)
return 0;
r_flush (rfd, 0);
- info->pos_buf = info->pos_cur;
+ info->pos_buf = mrfd->pos_cur;
r_reread (rfd);
}
- memcpy (buf, info->buf_mem + (info->pos_cur - info->pos_buf),
+ memcpy (buf, info->buf_mem + (mrfd->pos_cur - info->pos_buf),
info->key_size);
- info->pos_cur = nc;
+ mrfd->pos_cur = nc;
+ *term_index = 0;
+
+ if (*mrfd->countp == 0 || (*info->cmp)(buf, mrfd->buf) > 1)
+ {
+ memcpy (mrfd->buf, buf, mrfd->info->key_size);
+ (*mrfd->countp)++;
+ }
+ mrfd->cur++;
return 1;
}
static int r_write (RSFD rfd, const void *buf)
{
- struct rset_temp_info *info = ((struct rset_temp_rfd*)rfd)->info;
+ struct rset_temp_rfd *mrfd = (struct rset_temp_rfd*) rfd;
+ struct rset_temp_info *info = mrfd->info;
- size_t nc = info->pos_cur + info->key_size;
+ size_t nc = mrfd->pos_cur + info->key_size;
if (nc > info->pos_buf + info->buf_size)
{
r_flush (rfd, 1);
- info->pos_buf = info->pos_cur;
+ info->pos_buf = mrfd->pos_cur;
if (info->pos_buf < info->pos_end)
r_reread (rfd);
}
info->dirty = 1;
- memcpy (info->buf_mem + (info->pos_cur - info->pos_buf), buf,
+ memcpy (info->buf_mem + (mrfd->pos_cur - info->pos_buf), buf,
info->key_size);
- info->pos_cur = nc;
+ mrfd->pos_cur = nc;
if (nc > info->pos_end)
info->pos_border = info->pos_end = nc;
+ info->hits++;
return 1;
}
-static int r_score (RSFD rfd, int *score)
+static void r_pos (RSFD rfd, double *current, double *total)
{
- *score = -1;
- return -1;
+ struct rset_temp_rfd *mrfd = (struct rset_temp_rfd*) rfd;
+ *current=(double) mrfd->cur;
+ *total=(double) mrfd->info->hits;
}
projects / idzebra-moved-to-github.git / blobdiff