Remove isamd. It's not been in use for a long time and isamb is better

[idzebra-moved-to-github.git] / include / isamd.h

diff --git a/include/isamd.h b/include/isamd.h
index acd2024..d9112ed 100644 (file)
--- a/include/isamd.h
+++ b/include/isamd.h
@@ -1,89 +1,112 @@
-/*
- * Copyright (c) 1995-1997, Index Data.
- * See the file LICENSE for details.
- *
- * IsamH is a simple ISAM that can only append to the end of the list.
- * It will need a clean-up process occasionally...  Code stolen from
- * isamc...
- * 
- * Heikki Levanto
- *
- * Detailed log at the end of the file
- *
- */
+/* $Id$
+   Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
+   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.
 
-#ifndef ISAMH_H
-#define ISAMH_H
+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 ISAMD_H
+#define ISAMD_H
 
 #include <bfile.h>
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+YAZ_BEGIN_CDECL
 
-typedef struct ISAMH_s *ISAMH;
-typedef int ISAMH_P;
-typedef struct ISAMH_PP_s *ISAMH_PP;
+typedef struct ISAMD_s *ISAMD;
+typedef int ISAMD_P;
+typedef struct ISAMD_PP_s *ISAMD_PP;
 
-typedef struct ISAMH_filecat_s {  /* filecategories, mostly block sizes */
+typedef struct ISAMD_filecat_s {  /* filecategories, mostly block sizes */
     int bsize;         /* block size */
     int mblocks;       /* maximum keys before switching to larger sizes */
-} *ISAMH_filecat;
+} *ISAMD_filecat;
 
-typedef struct ISAMH_M_s {
-    ISAMH_filecat filecat;
+typedef struct ISAMD_M_s {
+    ISAMD_filecat filecat;
 
     int (*compare_item)(const void *a, const void *b);
+    void (*log_item)(int logmask, const void *p, const char *txt);
 
-#define ISAMH_DECODE 0
-#define ISAMH_ENCODE 1
+#define ISAMD_DECODE 0
+#define ISAMD_ENCODE 1
     void *(*code_start)(int mode);
     void (*code_stop)(int mode, void *p);
-    void (*code_item)(int mode, void *p, char **dst, char **src);
+    void (*code_item)(int mode, void *p, char **dst, const char **src);
     void (*code_reset)(void *p);
 
     int max_blocks_mem;
     int debug;
-} *ISAMH_M;
+} ISAMD_M;
 
-typedef struct ISAMH_I_s {  /* encapsulation of input data */
+typedef struct ISAMD_I_s {  /* encapsulation of input data */
     int (*read_item)(void *clientData, char **dst, int *insertMode);
     void *clientData;
-} *ISAMH_I;
+} *ISAMD_I;
+
+ISAMD_M *isamd_getmethod (ISAMD_M *me);
 
-ISAMH_M isamd_getmethod (void);
+ISAMD isamd_open (BFiles bfs, const char *name, int writeflag, ISAMD_M *method);
+int isamd_close (ISAMD is);
+/*ISAMD_P isamd_append (ISAMD is, ISAMD_P pos, ISAMD_I data);*/
+int isamd_append (ISAMD is, char *dictentry, int dictlen, ISAMD_I data);
 
-ISAMH isamd_open (BFiles bfs, const char *name, int writeflag, ISAMH_M method);
-int isamd_close (ISAMH is);
-ISAMH_P isamd_append (ISAMH is, ISAMH_P pos, ISAMH_I data);
-  /* corresponds to isc_merge */
   
   
-ISAMH_PP isamd_pp_open (ISAMH is, ISAMH_P pos);
-void isamd_pp_close (ISAMH_PP pp);
-int isamd_read_item (ISAMH_PP pp, char **dst);
-int isamd_pp_read (ISAMH_PP pp, void *buf);
-int isamd_pp_num (ISAMH_PP pp);
+/* Shortcut: If the isam is relatively short, we store the */
+/* whole thing in the dictionary, and allocate no blocks at all! */
+#define ISAMD_MAX_DICT_LEN 16
+
+/*ISAMD_PP isamd_pp_open (ISAMD is, const char *dictbuf);*/
+ISAMD_PP isamd_pp_open (ISAMD is, const char *dictbuf, int dictlen);
+ISAMD_PP isamd_pp_create (ISAMD is, int cat);
+
+void isamd_pp_close (ISAMD_PP pp);
+int isamd_read_item (ISAMD_PP pp, char **dst);
+int isamd_read_main_item (ISAMD_PP pp, char **dst);
+int isamd_pp_read (ISAMD_PP pp, void *buf);
+int isamd_pp_num (ISAMD_PP pp);
 
-int isamd_block_used (ISAMH is, int type);
-int isamd_block_size (ISAMH is, int type);
+int isamd_block_used (ISAMD is, int type);
+int isamd_block_size (ISAMD is, int type);
 
 
 #define isamd_type(x) ((x) & 7)
 #define isamd_block(x) ((x) >> 3)
 #define isamd_addr(blk,typ) (((blk)<<3)+(typ))
 
-void isamd_buildfirstblock(ISAMH_PP pp);
-void isamd_buildlaterblock(ISAMH_PP pp);
+void isamd_buildfirstblock(ISAMD_PP pp);
+void isamd_buildlaterblock(ISAMD_PP pp);
 
-#ifdef __cplusplus
-}
-#endif
+YAZ_END_CDECL
 
-#endif  /* ISAMH_H */
+#endif  /* ISAMD_H */
 
 
 /*
- * $Log:  $
+ * $Log: isamd.h,v $
+ * Revision 1.3  1999/08/18 08:33:41  heikki
+ * Fixes
+ *
+ * Revision 1.2  1999/07/14 13:21:34  heikki
+ * Added isam-d files. Compiles (almost) clean. Doesn't work at all
+ *
+ * Revision 1.1  1999/07/14 12:34:43  heikki
+ * Copied from isamh, starting to change things...
+ *
  *
  */