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-rw-r--r--db2/btree/bt_curadj.c272
1 files changed, 0 insertions, 272 deletions
diff --git a/db2/btree/bt_curadj.c b/db2/btree/bt_curadj.c
deleted file mode 100644
index 9b86fbb6d7..0000000000
--- a/db2/btree/bt_curadj.c
+++ /dev/null
@@ -1,272 +0,0 @@
-/*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1996, 1997, 1998
- *	Sleepycat Software.  All rights reserved.
- */
-
-#include "config.h"
-
-#ifndef lint
-static const char sccsid[] = "@(#)bt_curadj.c	10.69 (Sleepycat) 12/2/98";
-#endif /* not lint */
-
-#ifndef NO_SYSTEM_INCLUDES
-#include <sys/types.h>
-
-#include <stdlib.h>
-#endif
-
-#include "db_int.h"
-#include "db_page.h"
-#include "btree.h"
-
-#ifdef DEBUG
-/*
- * __bam_cprint --
- *	Display the current cursor list.
- *
- * PUBLIC: int __bam_cprint __P((DB *));
- */
-int
-__bam_cprint(dbp)
-	DB *dbp;
-{
-	CURSOR *cp;
-	DBC *dbc;
-
-	DB_THREAD_LOCK(dbp);
-	for (dbc = TAILQ_FIRST(&dbp->active_queue);
-	    dbc != NULL; dbc = TAILQ_NEXT(dbc, links)) {
-		cp = (CURSOR *)dbc->internal;
-		fprintf(stderr,
-	    "%#0x->%#0x: page: %lu index: %lu dpage %lu dindex: %lu recno: %lu",
-		    (u_int)dbc, (u_int)cp, (u_long)cp->pgno, (u_long)cp->indx,
-		    (u_long)cp->dpgno, (u_long)cp->dindx, (u_long)cp->recno);
-		if (F_ISSET(cp, C_DELETED))
-			fprintf(stderr, " (deleted)");
-		fprintf(stderr, "\n");
-	}
-	DB_THREAD_UNLOCK(dbp);
-
-	return (0);
-}
-#endif /* DEBUG */
-
-/*
- * __bam_ca_delete --
- *	Update the cursors when items are deleted and when already deleted
- *	items are overwritten.  Return the number of relevant cursors found.
- *
- * PUBLIC: int __bam_ca_delete __P((DB *, db_pgno_t, u_int32_t, int));
- */
-int
-__bam_ca_delete(dbp, pgno, indx, delete)
-	DB *dbp;
-	db_pgno_t pgno;
-	u_int32_t indx;
-	int delete;
-{
-	DBC *dbc;
-	CURSOR *cp;
-	int count;		/* !!!: Has to contain max number of cursors. */
-
-	/* Recno is responsible for its own adjustments. */
-	if (dbp->type == DB_RECNO)
-		return (0);
-
-	/*
-	 * Adjust the cursors.  We don't have to review the cursors for any
-	 * thread of control other than the current one, because we have the
-	 * page write locked at this point, and any other thread of control
-	 * had better be using a different locker ID, meaning only cursors in
-	 * our thread of control can be on the page.
-	 *
-	 * It's possible for multiple cursors within the thread to have write
-	 * locks on the same page, but, cursors within a thread must be single
-	 * threaded, so all we're locking here is the cursor linked list.
-	 */
-	DB_THREAD_LOCK(dbp);
-	for (count = 0, dbc = TAILQ_FIRST(&dbp->active_queue);
-	    dbc != NULL; dbc = TAILQ_NEXT(dbc, links)) {
-		cp = (CURSOR *)dbc->internal;
-
-		if ((cp->pgno == pgno && cp->indx == indx) ||
-		    (cp->dpgno == pgno && cp->dindx == indx)) {
-			if (delete)
-				F_SET(cp, C_DELETED);
-			else
-				F_CLR(cp, C_DELETED);
-			++count;
-		}
-	}
-	DB_THREAD_UNLOCK(dbp);
-
-	return (count);
-}
-
-/*
- * __bam_ca_di --
- *	Adjust the cursors during a delete or insert.
- *
- * PUBLIC: void __bam_ca_di __P((DB *, db_pgno_t, u_int32_t, int));
- */
-void
-__bam_ca_di(dbp, pgno, indx, adjust)
-	DB *dbp;
-	db_pgno_t pgno;
-	u_int32_t indx;
-	int adjust;
-{
-	CURSOR *cp;
-	DBC *dbc;
-
-	/* Recno is responsible for its own adjustments. */
-	if (dbp->type == DB_RECNO)
-		return;
-
-	/*
-	 * Adjust the cursors.  See the comment in __bam_ca_delete().
-	 */
-	DB_THREAD_LOCK(dbp);
-	for (dbc = TAILQ_FIRST(&dbp->active_queue);
-	    dbc != NULL; dbc = TAILQ_NEXT(dbc, links)) {
-		cp = (CURSOR *)dbc->internal;
-		if (cp->pgno == pgno && cp->indx >= indx)
-			cp->indx += adjust;
-		if (cp->dpgno == pgno && cp->dindx >= indx)
-			cp->dindx += adjust;
-	}
-	DB_THREAD_UNLOCK(dbp);
-}
-
-/*
- * __bam_ca_dup --
- *	Adjust the cursors when moving items from a leaf page to a duplicates
- *	page.
- *
- * PUBLIC: void __bam_ca_dup __P((DB *,
- * PUBLIC:    db_pgno_t, u_int32_t, u_int32_t, db_pgno_t, u_int32_t));
- */
-void
-__bam_ca_dup(dbp, fpgno, first, fi, tpgno, ti)
-	DB *dbp;
-	db_pgno_t fpgno, tpgno;
-	u_int32_t first, fi, ti;
-{
-	CURSOR *cp;
-	DBC *dbc;
-
-	/* Recno is responsible for its own adjustments. */
-	if (dbp->type == DB_RECNO)
-		return;
-
-	/*
-	 * Adjust the cursors.  See the comment in __bam_ca_delete().
-	 */
-	DB_THREAD_LOCK(dbp);
-	for (dbc = TAILQ_FIRST(&dbp->active_queue);
-	    dbc != NULL; dbc = TAILQ_NEXT(dbc, links)) {
-		cp = (CURSOR *)dbc->internal;
-		/*
-		 * Ignore matching entries that have already been moved,
-		 * we move from the same location on the leaf page more
-		 * than once.
-		 */
-		if (cp->dpgno == PGNO_INVALID &&
-		    cp->pgno == fpgno && cp->indx == fi) {
-			cp->indx = first;
-			cp->dpgno = tpgno;
-			cp->dindx = ti;
-		}
-	}
-	DB_THREAD_UNLOCK(dbp);
-}
-
-/*
- * __bam_ca_rsplit --
- *	Adjust the cursors when doing reverse splits.
- *
- * PUBLIC: void __bam_ca_rsplit __P((DB *, db_pgno_t, db_pgno_t));
- */
-void
-__bam_ca_rsplit(dbp, fpgno, tpgno)
-	DB *dbp;
-	db_pgno_t fpgno, tpgno;
-{
-	CURSOR *cp;
-	DBC *dbc;
-
-	/* Recno is responsible for its own adjustments. */
-	if (dbp->type == DB_RECNO)
-		return;
-
-	/*
-	 * Adjust the cursors.  See the comment in __bam_ca_delete().
-	 */
-	DB_THREAD_LOCK(dbp);
-	for (dbc = TAILQ_FIRST(&dbp->active_queue);
-	    dbc != NULL; dbc = TAILQ_NEXT(dbc, links)) {
-		cp = (CURSOR *)dbc->internal;
-		if (cp->pgno == fpgno)
-			cp->pgno = tpgno;
-	}
-	DB_THREAD_UNLOCK(dbp);
-}
-
-/*
- * __bam_ca_split --
- *	Adjust the cursors when splitting a page.
- *
- * PUBLIC: void __bam_ca_split __P((DB *,
- * PUBLIC:    db_pgno_t, db_pgno_t, db_pgno_t, u_int32_t, int));
- */
-void
-__bam_ca_split(dbp, ppgno, lpgno, rpgno, split_indx, cleft)
-	DB *dbp;
-	db_pgno_t ppgno, lpgno, rpgno;
-	u_int32_t split_indx;
-	int cleft;
-{
-	DBC *dbc;
-	CURSOR *cp;
-
-	/* Recno is responsible for its own adjustments. */
-	if (dbp->type == DB_RECNO)
-		return;
-
-	/*
-	 * Adjust the cursors.  See the comment in __bam_ca_delete().
-	 *
-	 * If splitting the page that a cursor was on, the cursor has to be
-	 * adjusted to point to the same record as before the split.  Most
-	 * of the time we don't adjust pointers to the left page, because
-	 * we're going to copy its contents back over the original page.  If
-	 * the cursor is on the right page, it is decremented by the number of
-	 * records split to the left page.
-	 */
-	DB_THREAD_LOCK(dbp);
-	for (dbc = TAILQ_FIRST(&dbp->active_queue);
-	    dbc != NULL; dbc = TAILQ_NEXT(dbc, links)) {
-		cp = (CURSOR *)dbc->internal;
-		if (cp->pgno == ppgno) {
-			if (cp->indx < split_indx) {
-				if (cleft)
-					cp->pgno = lpgno;
-			} else {
-				cp->pgno = rpgno;
-				cp->indx -= split_indx;
-			}
-		}
-		if (cp->dpgno == ppgno) {
-			if (cp->dindx < split_indx) {
-				if (cleft)
-					cp->dpgno = lpgno;
-			} else {
-				cp->dpgno = rpgno;
-				cp->dindx -= split_indx;
-			}
-		}
-	}
-	DB_THREAD_UNLOCK(dbp);
-}
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