r435: a major upgrade for ldb

 - added the ability to mark record attributes as being CASE_INSENSITIVE, WILDCARD or INTEGER.

 - added the ability to support objectclass subclasses, and to search by a parent class

 - added internal support for case insensitive versus case sensitive
   indexing (not UTF8 compliant yet)

 - cleaned up a number of const warnings

 - added a number of helper functions for fetching integers, strings and doubles

 - added a in-memory cache for important database properties, supported by a
   database sequence number

 - changed some variable names to avoid conflicts with C++
(This used to be commit f2bf06f25c2e6c744817711c7bedbd1d3b52f994)

1 files changed, 36 insertions, 0 deletions

diff --git a/source4/lib/ldb/ldb_tdb/ldb_tdb.h b/source4/lib/ldb/ldb_tdb/ldb_tdb.h
index efb0af1c9c..e87027db63 100644
--- a/source4/lib/ldb/ldb_tdb/ldb_tdb.h
+++ b/source4/lib/ldb/ldb_tdb/ldb_tdb.h
@@ -3,8 +3,44 @@
 struct ltdb_private {
 	TDB_CONTEXT *tdb;
 	unsigned int connect_flags;
+	
+	/* a double is used for portability and ease of string
+	   handling. It has plenty of digits of precision */
+	double sequence_number;
+
+	struct {
+		struct ldb_message baseinfo;
+		struct ldb_message indexlist;
+		struct ldb_message attributes;
+		struct ldb_message subclasses;
+
+		struct {
+			char *name;
+			int flags;
+		} last_attribute;
+	} cache;
 };
 
+/* special record types */
+#define LTDB_INDEX      "@INDEX"
+#define LTDB_INDEXLIST  "@INDEXLIST"
+#define LTDB_IDX        "@IDX"
+#define LTDB_IDXATTR    "@IDXATTR"
+#define LTDB_BASEINFO   "@BASEINFO"
+#define LTDB_ATTRIBUTES "@ATTRIBUTES"
+#define LTDB_SUBCLASSES "@SUBCLASSES"
+
+/* special attribute types */
+#define LTDB_SEQUENCE_NUMBER "sequenceNumber"
+#define LTDB_OBJECTCLASS "objectClass"
+
+/* well known attribute flags */
+#define LTDB_FLAG_CASE_INSENSITIVE (1<<0)
+#define LTDB_FLAG_INTEGER          (1<<1)
+#define LTDB_FLAG_WILDCARD         (1<<2)
+#define LTDB_FLAG_OBJECTCLASS      (1<<3)
+
+
 #ifndef IVAL
 #define IVAL(p, ofs) (((unsigned *)((char *)(p) + (ofs)))[0])
 #endif