Move/refactoring of public interfaces..

[idzebra-moved-to-github.git] / dict / dict-p.h

diff --git a/dict/dict-p.h b/dict/dict-p.h
new file mode 100644 (file)
index 0000000..ec76e39
--- /dev/null
+++ b/dict/dict-p.h
@@ -0,0 +1,111 @@
+/* $Id: dict-p.h,v 1.1 2004-12-08 12:23:08 adam Exp $
+   Copyright (C) 2004
+   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.
+*/
+
+#ifndef DICT_P_H
+#define DICT_P_H
+
+#include <idzebra/dict.h>
+
+YAZ_BEGIN_CDECL
+
+#define DICT_MAGIC "dict01"
+
+#define DICT_DEFAULT_PAGESIZE 4096
+
+struct Dict_head {
+    char magic_str[8];
+    int page_size;
+    int compact_flag;
+    Dict_ptr root, last, freelist;
+};
+
+struct Dict_file_block
+{
+    struct Dict_file_block *h_next, **h_prev;
+    struct Dict_file_block *lru_next, *lru_prev;
+    void *data;
+    int dirty;
+    int no;
+    int nbytes;
+};
+
+typedef struct Dict_file_struct
+{
+    int cache;
+    BFile bf;
+    
+    struct Dict_file_block *all_blocks;
+    struct Dict_file_block *free_list;
+    struct Dict_file_block **hash_array;
+    
+    struct Dict_file_block *lru_back, *lru_front;
+    int hash_size;
+    void *all_data;
+    
+    int  block_size;
+    int  hits;
+    int  misses;
+    int  compact_flag;
+} *Dict_BFile;
+
+struct Dict_struct {
+    int rw;
+    Dict_BFile dbf;
+    const char **(*grep_cmap)(void *vp, const char **from, int len);
+    void *grep_cmap_data;
+    struct Dict_head head;
+};
+
+int        dict_bf_readp (Dict_BFile bf, int no, void **bufp);
+int        dict_bf_newp (Dict_BFile bf, int no, void **bufp, int nbytes);
+int        dict_bf_touch (Dict_BFile bf, int no);
+void       dict_bf_flush_blocks (Dict_BFile bf, int no_to_flush);
+Dict_BFile dict_bf_open (BFiles bfs, const char *name, int block_size,
+                        int cache, int rw);
+int        dict_bf_close (Dict_BFile dbf);
+void       dict_bf_compact (Dict_BFile dbf);
+
+#define DICT_EOS        0
+#define DICT_type(x)    0[(Dict_ptr*) x]
+#define DICT_backptr(x) 1[(Dict_ptr*) x]
+#define DICT_bsize(x)   2[(short*)((char*)(x)+2*sizeof(Dict_ptr))]
+#define DICT_nodir(x)   0[(short*)((char*)(x)+2*sizeof(Dict_ptr))]
+#define DICT_size(x)    1[(short*)((char*)(x)+2*sizeof(Dict_ptr))]
+#define DICT_infoffset  (2*sizeof(Dict_ptr)+3*sizeof(short))
+#define DICT_xxxxpagesize(x) ((x)->head.page_size)
+
+#define DICT_to_str(x)  sizeof(Dict_info)+sizeof(Dict_ptr)
+
+/*
+   type            type of page
+   backptr         pointer to parent
+   nextptr         pointer to next page (if any)
+   nodir           no of words
+   size            size of strings,info,ptr entries
+
+   dir[0..nodir-1]
+   ptr,info,string
+ */
+     
+YAZ_END_CDECL
+
+#endif