From: Heikki Levanto <heikki@indexdata.dk>
Date: Tue, 16 Jan 2001 19:05:11 +0000 (+0000)
Subject: Started to add isamg
X-Git-Tag: ZEBRA.1.1~39
X-Git-Url: http://sru.miketaylor.org.uk/cgi-bin?a=commitdiff_plain;h=b1cc92fc80e32020fb2a91c6577b33ca2cef354a;p=idzebra-moved-to-github.git

Started to add isamg
---

diff --git a/include/Makefile.in b/include/Makefile.in
index e7cfb8a..0399b15 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -67,11 +67,6 @@ RANLIB = @RANLIB@
 TCL_INCLUDE = @TCL_INCLUDE@
 TCL_LIB = @TCL_LIB@
 VERSION = @VERSION@
-YAZINC = @YAZINC@
-YAZLALIB = @YAZLALIB@
-YAZLIB = @YAZLIB@
-YAZVERSION = @YAZVERSION@
-yazconfig = @yazconfig@
 
 noinst_HEADERS = bfile.h bset.h charmap.h dfa.h dict.h direntz.h isam.h  isamc.h isamd.h isams.h mfile.h passwddb.h recctrl.h res.h rsbool.h rset.h  rsisam.h rsisamc.h rsisams.h rsm_or.h rsnull.h rstemp.h set.h sortidx.h  str.h zebra-lock.h zebramap.h zebrautl.h zebraver.h isamb.h
 
diff --git a/include/isamg.h b/include/isamg.h
new file mode 100644
index 0000000..eeb04e0
--- /dev/null
+++ b/include/isamg.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 1995-2000, Index Data.
+ * See the file LICENSE for details.
+ *
+ * ISAM-G  - Generic interface to all our ISAM types
+ *
+ * Heikki Levanto
+ *
+ * Detailed log at the end of the file
+ *
+ */
+
+#ifndef ISAMG_H
+#define ISAMG_H
+
+/* #include <bfile.h> */
+
+YAZ_BEGIN_CDECL
+
+typedef struct ISAMG_s *ISAMG;
+typedef int ISAMG_P;
+typedef struct ISAMG_PP_s *ISAMG_PP;
+
+#ifdef SKIPTHIS
+/* File categories etc are no business of users of ISAM-G (or what?) */
+typedef struct ISAMG_filecat_s {  /* filecategories, mostly block sizes */
+    int bsize;         /* block size */
+    int mblocks;       /* maximum keys before switching to larger sizes */
+} *ISAMG_filecat;
+#endif 
+
+
+#ifdef SKIPTHIS
+/* The (delta?)encoding will be encapsulated so deep in the isams that */
+/* nobody needs to see it here... If different encodings needed, make */
+/* new isam types! */
+
+typedef struct ISAMG_M_s {
+    ISAMG_filecat filecat;
+
+    int (*compare_item)(const void *a, const void *b);
+
+#define ISAMG_DECODE 0
+#define ISAMG_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_reset)(void *p);
+
+    int max_blocks_mem;
+    int debug;
+} *ISAMG_M;
+#endif
+
+#ifdef SKIPTHIS
+/* Is this needed? Shouldn't they all be using the same encapsulation */
+
+typedef struct ISAMG_I_s {  /* encapsulation of input data */
+    int (*read_item)(void *clientData, char **dst, int *insertMode);
+    void *clientData;
+} *ISAMG_I;
+#endif
+
+#ifdef SKIPTHIS 
+ISAMG_M isamg_getmethod (ISAMG_M me);
+/* Does anyone really need this method thing ?? */
+#endif
+
+ISAMG isamg_open (BFiles bfs, int writeflag, char *isam_type_name, Res res);
+
+int isamg_close (ISAMG is);
+
+ISAMG_P isamg_append (ISAMG is, ISAMG_P pos, ISAMG_I data);
+/* This may be difficult to generalize! */
+  
+  
+ISAMG_PP isamg_pp_open (ISAMG is, ISAMG_P pos);
+void isamg_pp_close (ISAMG_PP pp);
+/* int isamg_read_item (ISAMG_PP pp, char **dst);      */
+/* int isamg_read_main_item (ISAMG_PP pp, char **dst); */
+int isamg_pp_read (ISAMG_PP pp, void *buf);
+int isamg_pp_num (ISAMG_PP pp);
+
+#ifdef SKIPTHIS
+/* all internal stuff */
+int isamg_block_used (ISAMG is, int type);
+int isamg_block_size (ISAMG is, int type);
+
+
+#define isamg_type(x) ((x) & 7)
+#define isamg_block(x) ((x) >> 3)
+#define isamg_addr(blk,typ) (((blk)<<3)+(typ))
+
+void isamg_buildfirstblock(ISAMG_PP pp);
+void isamg_buildlaterblock(ISAMG_PP pp);
+#endif
+
+YAZ_END_CDECL
+
+#endif  /* ISAMG_H */
+
+
+/*
+ * $Log: isamg.h,v $
+ * Revision 1.1  2001-01-16 19:05:11  heikki
+ * Started to add isamg
+ *
+ *
+ *
+ */