/*
- * Copyright (C) 1994, Index Data I/S
+ * Copyright (C) 1994-2002, Index Data
* All rights reserved.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: open.c,v $
- * Revision 1.2 1994-08-17 13:32:20 adam
+ * Revision 1.18 2002-05-03 13:47:15 adam
+ * make checkergcc happy
+ *
+ * Revision 1.17 2000/12/05 09:59:10 adam
+ * Work on dict_delete_subtree.
+ *
+ * Revision 1.16 1999/05/26 07:49:13 adam
+ * C++ compilation.
+ *
+ * Revision 1.15 1999/05/15 14:36:37 adam
+ * Updated dictionary. Implemented "compression" of dictionary.
+ *
+ * Revision 1.14 1999/03/09 13:07:06 adam
+ * Work on dict_compact routine.
+ *
+ * Revision 1.13 1999/02/02 14:50:27 adam
+ * Updated WIN32 code specific sections. Changed header.
+ *
+ * Revision 1.12 1997/09/17 12:19:07 adam
+ * Zebra version corresponds to YAZ version 1.4.
+ * Changed Zebra server so that it doesn't depend on global common_resource.
+ *
+ * Revision 1.11 1996/10/29 14:00:05 adam
+ * Page size given by DICT_DEFAULT_PAGESIZE in dict.h.
+ *
+ * Revision 1.10 1996/05/24 14:46:04 adam
+ * Added dict_grep_cmap function to define user-mapping in grep lookups.
+ *
+ * Revision 1.9 1996/02/02 13:43:51 adam
+ * The public functions simply use char instead of Dict_char to represent
+ * search strings. Dict_char is used internally only.
+ *
+ * Revision 1.8 1995/12/07 11:48:56 adam
+ * Insert operation obeys DICT_type = 1 (slack in page).
+ * Function dict_open exists if page size or magic aren't right.
+ *
+ * Revision 1.7 1995/09/04 12:33:32 adam
+ * Various cleanup. YAZ util used instead.
+ *
+ * Revision 1.6 1994/10/05 12:16:52 adam
+ * Pagesize is a resource now.
+ *
+ * Revision 1.5 1994/09/01 17:49:39 adam
+ * Removed stupid line. Work on insertion in dictionary. Not finished yet.
+ *
+ * Revision 1.4 1994/09/01 17:44:10 adam
+ * depend include change.
+ *
+ * Revision 1.3 1994/08/18 12:40:58 adam
+ * Some development of dictionary. Not finished at all!
+ *
+ * Revision 1.2 1994/08/17 13:32:20 adam
* Use cache in dict - not in bfile.
*
* Revision 1.1 1994/08/16 16:26:49 adam
*
*/
-
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <dict.h>
-Dict dict_open (const char *name, int cache, int rw)
+Dict dict_open (BFiles bfs, const char *name, int cache, int rw,
+ int compact_flag)
{
Dict dict;
void *head_buf;
- struct Dict_head *dh;
+ char resource_str[80];
+ int page_size;
+
+ dict = (Dict) xmalloc (sizeof(*dict));
- dict = xmalloc (sizeof(*dict));
+ if (cache < 5)
+ cache = 5;
+ sprintf (resource_str, "dict.%s.pagesize", name);
- dict->dbf = dict_bf_open (name, DICT_PAGESIZE, cache, rw);
+ dict->grep_cmap = NULL;
+ page_size = DICT_DEFAULT_PAGESIZE;
+ if (page_size < 2048)
+ {
+ logf (LOG_WARN, "Resource %s was too small. Set to 2048",
+ resource_str);
+ page_size = 2048;
+ }
+ dict->dbf = dict_bf_open (bfs, name, page_size, cache, rw);
+ dict->rw = rw;
if(!dict->dbf)
{
- free (dict);
+ logf (LOG_WARN, "Cannot open `%s'", name);
+ xfree (dict);
return NULL;
}
if (dict_bf_readp (dict->dbf, 0, &head_buf) <= 0)
{
+ memset (dict->head.magic_str, 0, sizeof(dict->head.magic_str));
+ strcpy (dict->head.magic_str, DICT_MAGIC);
+ dict->head.last = 1;
+ dict->head.root = 0;
+ dict->head.freelist = 0;
+ dict->head.page_size = page_size;
+ dict->head.compact_flag = compact_flag;
+
+ /* create header with information (page 0) */
if (rw)
- { /* create header with information (page 0) */
- dict_bf_newp (dict->dbf, 0, &head_buf);
- dh = (struct Dict_head *) head_buf;
- strcpy(dh->magic_str, DICT_MAGIC);
- dh->free_list = dh->last = 1;
- dh->page_size = DICT_PAGESIZE;
- memcpy (&dict->head, dh, sizeof(*dh));
- }
- else
- { /* no header present, i.e. no dictionary at all */
- dict->head.free_list = dict->head.last = 0;
- dict->head.page_size = DICT_PAGESIZE;
- }
+ dict_bf_newp (dict->dbf, 0, &head_buf, page_size);
}
else /* header was there, check magic and page size */
{
- dh = (struct Dict_head *) head_buf;
- if (!strcmp (dh->magic_str, DICT_MAGIC))
+ memcpy (&dict->head, head_buf, sizeof(dict->head));
+ if (strcmp (dict->head.magic_str, DICT_MAGIC))
{
- dict_bf_close (dict->dbf);
- free (dict);
- return NULL;
+ logf (LOG_WARN, "Bad magic of `%s'", name);
+ exit (1);
}
- if (dh->page_size != DICT_PAGESIZE)
+ if (dict->head.page_size != page_size)
{
- dict_bf_close (dict->dbf);
- free (dict);
- return NULL;
+ logf (LOG_WARN, "Resource %s is %d and pagesize of `%s' is %d",
+ resource_str, page_size, name, dict->head.page_size);
+ return 0;
}
- memcpy (&dict->head, dh, sizeof(*dh));
}
+ if (dict->head.compact_flag)
+ dict_bf_compact(dict->dbf);
return dict;
}
int dict_strcmp (const Dict_char *s1, const Dict_char *s2)
{
- return strcmp (s1, s2);
+ return strcmp ((const char *) s1, (const char *) s2);
+}
+
+int dict_strncmp (const Dict_char *s1, const Dict_char *s2, size_t n)
+{
+ return strncmp ((const char *) s1, (const char *) s2, n);
}
int dict_strlen (const Dict_char *s)
{
- return strlen(s)+1;
+ return strlen((const char *) s);
}