Replace Berkeley DB with SQLite 3

There were some bugs in the very ancient version of Berkeley DB that Asterisk
used. Instead of spending the time tracking down the bugs in the Berkeley code
we move to the much better documented SQLite 3.

Conversion of the old astdb happens at runtime by running the included
astdb2sqlite3 utility. The ast_db API with SQLite 3 backend should behave
identically to the old Berkeley backend, but in the future we could offer a
much more robust interface.

We do not include the SQLite 3 library in the source tree, but instead rely
upon the distribution-provided libraries. SQLite is so ubiquitous that this
should not place undue burden on administrators.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@326589 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 65 insertions, 0 deletions

diff --git a/utils/db1-ast/hash/extern.h b/utils/db1-ast/hash/extern.h
new file mode 100644
index 000000000..4f1f23d67
--- /dev/null
+++ b/utils/db1-ast/hash/extern.h
@@ -0,0 +1,65 @@
+/*-
+ * Copyright (c) 1991, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)extern.h	8.4 (Berkeley) 6/16/94
+ */
+
+BUFHEAD	*__add_ovflpage __P((HTAB *, BUFHEAD *));
+int	 __addel __P((HTAB *, BUFHEAD *, const DBT *, const DBT *));
+int	 __big_delete __P((HTAB *, BUFHEAD *));
+int	 __big_insert __P((HTAB *, BUFHEAD *, const DBT *, const DBT *));
+int	 __big_keydata __P((HTAB *, BUFHEAD *, DBT *, DBT *, int));
+int	 __big_return __P((HTAB *, BUFHEAD *, int, DBT *, int));
+int	 __big_split __P((HTAB *, BUFHEAD *, BUFHEAD *, BUFHEAD *,
+		int, u_int32_t, SPLIT_RETURN *));
+int	 __buf_free __P((HTAB *, int, int));
+void	 __buf_init __P((HTAB *, int));
+u_int32_t	 __call_hash __P((HTAB *, char *, int));
+int	 __delpair __P((HTAB *, BUFHEAD *, int));
+int	 __expand_table __P((HTAB *));
+int	 __find_bigpair __P((HTAB *, BUFHEAD *, int, char *, int));
+u_int16_t	 __find_last_page __P((HTAB *, BUFHEAD **));
+void	 __free_ovflpage __P((HTAB *, BUFHEAD *));
+BUFHEAD	*__get_buf __P((HTAB *, u_int32_t, BUFHEAD *, int));
+int	 __get_page __P((HTAB *, char *, u_int32_t, int, int, int));
+int	 __ibitmap __P((HTAB *, int, int, int));
+u_int32_t	 __hash_log2 __P((u_int32_t));
+int	 __put_page __P((HTAB *, char *, u_int32_t, int, int));
+void	 __reclaim_buf __P((HTAB *, BUFHEAD *));
+int	 __split_page __P((HTAB *, u_int32_t, u_int32_t));
+
+/* Default hash routine. */
+extern u_int32_t (*__default_hash) __P((const void *, size_t));
+
+#ifdef HASH_STATISTICS
+extern int hash_accesses, hash_collisions, hash_expansions, hash_overflows;
+#endif