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authorUlrich Drepper <drepper@redhat.com>2000-01-02 06:01:06 +0000
committerUlrich Drepper <drepper@redhat.com>2000-01-02 06:01:06 +0000
commit8d6f1731fcd082e4f744ba9cb4bde4be7c08f1b3 (patch)
tree099a250d7366aef2ab028fdb24f0d692cd784b4a /db2/include/hash.h
parent9a6450d578556c11e7c173d2f28362345b8f1258 (diff)
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Update.
	* Makeconfig (all-subdirs): Remove db and db2.
	* db/*: Removed.
	* db2/*: Removed.
Diffstat (limited to 'db2/include/hash.h')
-rw-r--r--db2/include/hash.h199
1 files changed, 0 insertions, 199 deletions
diff --git a/db2/include/hash.h b/db2/include/hash.h
deleted file mode 100644
index 5d85a2a3a7..0000000000
--- a/db2/include/hash.h
+++ /dev/null
@@ -1,199 +0,0 @@
-/*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1996, 1997, 1998
- *	Sleepycat Software.  All rights reserved.
- */
-/*
- * Copyright (c) 1990, 1993, 1994
- *	Margo Seltzer.  All rights reserved.
- */
-/*
- * Copyright (c) 1990, 1993, 1994
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Margo Seltzer.
- *
- * 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.
- *
- *	@(#)hash.h	10.14 (Sleepycat) 10/4/98
- */
-
-/* Cursor structure definitions. */
-typedef struct cursor_t {
-	DBC		*dbc;
-
-	/* Per-thread information */
-	DB_LOCK hlock;			/* Metadata page lock. */
-	HASHHDR *hdr;			/* Pointer to meta-data page. */
-	PAGE *split_buf;		/* Temporary buffer for splits. */
-	struct __db_h_stat stats;	/* Hash statistics. */
-
-	/* Hash cursor information */
-	db_pgno_t	bucket;		/* Bucket we are traversing. */
-	db_pgno_t	lbucket;	/* Bucket for which we are locked. */
-	DB_LOCK		lock;		/* Lock held on the current bucket. */
-	PAGE		*pagep;		/* The current page. */
-	db_pgno_t	pgno;		/* Current page number. */
-	db_indx_t	bndx;		/* Index within the current page. */
-	PAGE		*dpagep;	/* Duplicate page pointer. */
-	db_pgno_t	dpgno;		/* Duplicate page number. */
-	db_indx_t	dndx;		/* Index within a duplicate set. */
-	db_indx_t	dup_off;	/* Offset within a duplicate set. */
-	db_indx_t	dup_len;	/* Length of current duplicate. */
-	db_indx_t	dup_tlen;	/* Total length of duplicate entry. */
-	u_int32_t	seek_size;	/* Number of bytes we need for add. */
-	db_pgno_t	seek_found_page;/* Page on which we can insert. */
-
-#define	H_DELETED	0x0001		/* Cursor item is deleted. */
-#define	H_DUPONLY	0x0002		/* Dups only; do not change key. */
-#define	H_EXPAND	0x0004		/* Table expanded. */
-#define	H_ISDUP		0x0008		/* Cursor is within duplicate set. */
-#define	H_NOMORE	0x0010		/* No more entries in bucket. */
-#define	H_OK		0x0020		/* Request succeeded. */
-#define H_DIRTY		0x0040		/* Meta-data page needs to be written */
-#define	H_ORIGINAL	0x0080		/* Bucket lock existed on entry. */
-	u_int32_t	flags;
-} HASH_CURSOR;
-
-#define	IS_VALID(C) ((C)->bucket != BUCKET_INVALID)
-
-#define	SAVE_CURSOR(ORIG, COPY) {					\
-	F_SET((ORIG), H_ORIGINAL);					\
-	*(COPY) = *(ORIG);						\
-}
-
-#define	RESTORE_CURSOR(D, ORIG, COPY, RET) {				\
-	if ((RET) == 0) {						\
-		if ((ORIG)->dbc->txn == NULL &&				\
-		    (COPY)->lock != 0 && (ORIG)->lock != (COPY)->lock)	\
-			(void)lock_put((D)->dbenv->lk_info, (COPY)->lock); \
-	} else {							\
-		if ((ORIG)->dbc->txn == NULL &&				\
-		    (ORIG)->lock != 0 && (ORIG)->lock != (COPY)->lock)	\
-			(void)lock_put((D)->dbenv->lk_info, (ORIG)->lock); \
-		*ORIG = *COPY;						\
-	}								\
-}
-
-/*
- * More interface macros used to get/release the meta data page.
- */
-#define	GET_META(D, I, R) {						\
-	if (F_ISSET(D, DB_AM_LOCKING) &&				\
-	    !F_ISSET((I)->dbc, DBC_RECOVER)) {				\
-		(I)->dbc->lock.pgno = BUCKET_INVALID;			\
-		(R) = lock_get((D)->dbenv->lk_info, (I)->dbc->locker, 	\
-		    0, &(I)->dbc->lock_dbt, DB_LOCK_READ, &(I)->hlock);	\
-		(R) = (R) < 0 ? EAGAIN : (R);				\
-	}								\
-	if ((R) == 0 && 						\
-	    ((R) = __ham_get_page(D, 0, (PAGE **)&((I)->hdr))) != 0 &&  \
-	    (I)->hlock != LOCK_INVALID) {				\
-		(void)lock_put((D)->dbenv->lk_info, (I)->hlock);	\
-		(I)->hlock = LOCK_INVALID;				\
-	}								\
-}
-
-#define	RELEASE_META(D, I) {						\
-	if ((I)->hdr)							\
-		(void)__ham_put_page(D, (PAGE *)(I)->hdr,		\
-		    F_ISSET(I, H_DIRTY) ? 1 : 0);			\
-	(I)->hdr = NULL;						\
-	if (!F_ISSET((I)->dbc, DBC_RECOVER) &&				\
-	    (I)->dbc->txn == NULL && (I)->hlock)			\
-		(void)lock_put((D)->dbenv->lk_info, (I)->hlock);	\
-	(I)->hlock = LOCK_INVALID;					\
-	F_CLR(I, H_DIRTY);						\
-}
-
-#define	DIRTY_META(D, I, R) {						\
-	if (F_ISSET(D, DB_AM_LOCKING) &&				\
-	    !F_ISSET((I)->dbc, DBC_RECOVER)) {				\
-		DB_LOCK _tmp;						\
-		(I)->dbc->lock.pgno = BUCKET_INVALID;			\
-	    	if (((R) = lock_get((D)->dbenv->lk_info,		\
-	    	    (I)->dbc->locker, 0, &(I)->dbc->lock_dbt,		\
-	    	    DB_LOCK_WRITE, &_tmp)) == 0)			\
-			(R) = lock_put((D)->dbenv->lk_info, (I)->hlock);\
-		else if ((R) < 0)					\
-			(R) = EAGAIN;					\
-		(I)->hlock = _tmp;					\
-	}								\
-	F_SET((I), H_DIRTY);						\
-}
-
-/* Test string. */
-#define	CHARKEY			"%$sniglet^&"
-
-/* Overflow management */
-/*
- * Overflow page numbers are allocated per split point.  At each doubling of
- * the table, we can allocate extra pages.  We keep track of how many pages
- * we've allocated at each point to calculate bucket to page number mapping.
- */
-#define	BUCKET_TO_PAGE(I, B) \
-	((B) + 1 + ((B) ? (I)->hdr->spares[__db_log2((B)+1)-1] : 0))
-
-#define	PGNO_OF(I, S, O) (BUCKET_TO_PAGE((I), (1 << (S)) - 1) + (O))
-
-/* Constraints about number of pages and how much data goes on a page. */
-
-#define	MAX_PAGES(H)	UINT32_T_MAX
-#define	MINFILL		4
-#define	ISBIG(I, N)	(((N) > ((I)->hdr->pagesize / MINFILL)) ? 1 : 0)
-
-/* Shorthands for accessing structure */
-#define	NDX_INVALID	0xFFFF
-#define	BUCKET_INVALID	0xFFFFFFFF
-
-/* On page duplicates are stored as a string of size-data-size triples. */
-#define	DUP_SIZE(len)	((len) + 2 * sizeof(db_indx_t))
-
-/* Log messages types (these are subtypes within a record type) */
-#define	PAIR_KEYMASK		0x1
-#define	PAIR_DATAMASK		0x2
-#define	PAIR_ISKEYBIG(N)	(N & PAIR_KEYMASK)
-#define	PAIR_ISDATABIG(N)	(N & PAIR_DATAMASK)
-#define	OPCODE_OF(N)    	(N & ~(PAIR_KEYMASK | PAIR_DATAMASK))
-
-#define	PUTPAIR		0x20
-#define	DELPAIR		0x30
-#define	PUTOVFL		0x40
-#define	DELOVFL		0x50
-#define	ALLOCPGNO	0x60
-#define	DELPGNO		0x70
-#define	SPLITOLD	0x80
-#define	SPLITNEW	0x90
-
-#include "hash_auto.h"
-#include "hash_ext.h"
-#include "db_am.h"
-#include "common_ext.h"