1 files changed, 0 insertions, 430 deletions
diff --git a/db2/db/db_am.c b/db2/db/db_am.c
deleted file mode 100644
index e02ad57f53..0000000000
--- a/db2/db/db_am.c
+++ /dev/null
@@ -1,430 +0,0 @@
-/*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1998
- *	Sleepycat Software.  All rights reserved.
- */
-
-#include "config.h"
-
-#ifndef lint
-static const char sccsid[] = "@(#)db_am.c	10.15 (Sleepycat) 12/30/98";
-#endif /* not lint */
-
-#ifndef NO_SYSTEM_INCLUDES
-#include <sys/types.h>
-
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#endif
-
-#include "db_int.h"
-#include "shqueue.h"
-#include "db_page.h"
-#include "db_shash.h"
-#include "mp.h"
-#include "btree.h"
-#include "hash.h"
-#include "db_am.h"
-#include "db_ext.h"
-
-static int __db_c_close __P((DBC *));
-static int __db_cursor __P((DB *, DB_TXN *, DBC **, u_int32_t));
-static int __db_fd __P((DB *, int *));
-static int __db_get __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t));
-static int __db_put __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t));
-
-/*
- * __db_init_wrapper --
- *	Wrapper layer to implement generic DB functions.
- *
- * PUBLIC: int __db_init_wrapper __P((DB *));
- */
-int
-__db_init_wrapper(dbp)
-	DB *dbp;
-{
-	dbp->close = __db_close;
-	dbp->cursor = __db_cursor;
-	dbp->del = NULL;		/* !!! Must be set by access method. */
-	dbp->fd = __db_fd;
-	dbp->get = __db_get;
-	dbp->join = __db_join;
-	dbp->put = __db_put;
-	dbp->stat = NULL;		/* !!! Must be set by access method. */
-	dbp->sync = __db_sync;
-
-	return (0);
-}
-
-/*
- * __db_cursor --
- *	Allocate and return a cursor.
- */
-static int
-__db_cursor(dbp, txn, dbcp, flags)
-	DB *dbp;
-	DB_TXN *txn;
-	DBC **dbcp;
-	u_int32_t flags;
-{
-	DBC *dbc, *adbc;
-	int ret;
-	db_lockmode_t mode;
-	u_int32_t op;
-
-	DB_PANIC_CHECK(dbp);
-
-	/* Take one from the free list if it's available. */
-	DB_THREAD_LOCK(dbp);
-	if ((dbc = TAILQ_FIRST(&dbp->free_queue)) != NULL)
-		TAILQ_REMOVE(&dbp->free_queue, dbc, links);
-	else {
-		DB_THREAD_UNLOCK(dbp);
-
-		if ((ret = __os_calloc(1, sizeof(DBC), &dbc)) != 0)
-			return (ret);
-
-		dbc->dbp = dbp;
-		dbc->c_close = __db_c_close;
-
-		/* Set up locking information. */
-		if (F_ISSET(dbp, DB_AM_LOCKING | DB_AM_CDB)) {
- 			/*
- 			 * If we are not threaded, then there is no need to
- 			 * create new locker ids.  We know that no one else
- 			 * is running concurrently using this DB, so we can
- 			 * take a peek at any cursors on the active queue.
- 			 */
- 			if (!F_ISSET(dbp, DB_AM_THREAD) &&
- 			    (adbc = TAILQ_FIRST(&dbp->active_queue)) != NULL)
- 				dbc->lid = adbc->lid;
- 			else
- 				if ((ret = lock_id(dbp->dbenv->lk_info,
- 				    &dbc->lid)) != 0)
- 					goto err;
- 
-			memcpy(dbc->lock.fileid, dbp->fileid, DB_FILE_ID_LEN);
-			if (F_ISSET(dbp, DB_AM_CDB)) {
-				dbc->lock_dbt.size = DB_FILE_ID_LEN;
-				dbc->lock_dbt.data = dbc->lock.fileid;
-			} else {
-				dbc->lock_dbt.size = sizeof(dbc->lock);
-				dbc->lock_dbt.data = &dbc->lock;
-			}
-		}
-
-		switch (dbp->type) {
-		case DB_BTREE:
-		case DB_RECNO:
-			if ((ret = __bam_c_init(dbc)) != 0)
-				goto err;
-			break;
-		case DB_HASH:
-			if ((ret = __ham_c_init(dbc)) != 0)
-				goto err;
-			break;
-		default:
-			ret = EINVAL;
-			goto err;
-		}
-
-		DB_THREAD_LOCK(dbp);
-	}
-
-	if ((dbc->txn = txn) == NULL)
-		dbc->locker = dbc->lid;
-	else
-		dbc->locker = txn->txnid;
-
-	TAILQ_INSERT_TAIL(&dbp->active_queue, dbc, links);
-	DB_THREAD_UNLOCK(dbp);
-
-	/*
-	 * If this is the concurrent DB product, then we do all locking
-	 * in the interface, which is right here.
-	 */
-	if (F_ISSET(dbp, DB_AM_CDB)) {
-		op = LF_ISSET(DB_OPFLAGS_MASK);
-		mode = (op == DB_WRITELOCK) ? DB_LOCK_WRITE :
-		    (LF_ISSET(DB_RMW) ? DB_LOCK_IWRITE : DB_LOCK_READ);
-		if ((ret = lock_get(dbp->dbenv->lk_info, dbc->locker, 0,
-		    &dbc->lock_dbt, mode, &dbc->mylock)) != 0) {
-			(void)__db_c_close(dbc);
-			return (EAGAIN);
-		}
-		if (LF_ISSET(DB_RMW))
-			F_SET(dbc, DBC_RMW);
-		if (op == DB_WRITELOCK)
-			F_SET(dbc, DBC_WRITER);
-	}
-
-	*dbcp = dbc;
-	return (0);
-
-err:	__os_free(dbc, sizeof(*dbc));
-	return (ret);
-}
-
-/*
- * __db_c_close --
- *	Close the cursor (recycle for later use).
- */
-static int
-__db_c_close(dbc)
-	DBC *dbc;
-{
-	DB *dbp;
-	int ret, t_ret;
-
-	dbp = dbc->dbp;
-
-	DB_PANIC_CHECK(dbp);
-
-	ret = 0;
-
-	/*
-	 * We cannot release the lock until after we've called the
-	 * access method specific routine, since btrees may have pending
-	 * deletes.
-	 */
-
-	/* Remove the cursor from the active queue. */
-	DB_THREAD_LOCK(dbp);
-	TAILQ_REMOVE(&dbp->active_queue, dbc, links);
-	DB_THREAD_UNLOCK(dbp);
-
-	/* Call the access specific cursor close routine. */
-	if ((t_ret = dbc->c_am_close(dbc)) != 0 && ret == 0)
-		t_ret = ret;
-
-	/* Release the lock. */
-	if (F_ISSET(dbc->dbp, DB_AM_CDB) && dbc->mylock != LOCK_INVALID) {
-		ret = lock_put(dbc->dbp->dbenv->lk_info, dbc->mylock);
-		dbc->mylock = LOCK_INVALID;
-	}
-
-	/* Clean up the cursor. */
-	dbc->flags = 0;
-
-#ifdef DEBUG
-	/*
-	 * Check for leftover locks, unless we're running with transactions.
-	 *
-	 * If we're running tests, display any locks currently held.  It's
-	 * possible that some applications may hold locks for long periods,
-	 * e.g., conference room locks, but the DB tests should never close
-	 * holding locks.
-	 */
-	if (F_ISSET(dbp, DB_AM_LOCKING) && dbc->lid == dbc->locker) {
-		DB_LOCKREQ request;
-
-		request.op = DB_LOCK_DUMP;
-		if ((t_ret = lock_vec(dbp->dbenv->lk_info,
-		    dbc->locker, 0, &request, 1, NULL)) != 0 && ret == 0)
-			ret = EAGAIN;
-	}
-#endif
-	/* Move the cursor to the free queue. */
-	DB_THREAD_LOCK(dbp);
-	TAILQ_INSERT_TAIL(&dbp->free_queue, dbc, links);
-	DB_THREAD_UNLOCK(dbp);
-
-	return (ret);
-}
-
-#ifdef DEBUG
-/*
- * __db_cprint --
- *	Display the current cursor list.
- *
- * PUBLIC: int __db_cprint __P((DB *));
- */
-int
-__db_cprint(dbp)
-	DB *dbp;
-{
-	static const FN fn[] = {
-		{ DBC_RECOVER, 	"recover" },
-		{ DBC_RMW, 	"read-modify-write" },
-		{ 0 },
-	};
-	DBC *dbc;
-
-	DB_THREAD_LOCK(dbp);
-	for (dbc = TAILQ_FIRST(&dbp->active_queue);
-	    dbc != NULL; dbc = TAILQ_NEXT(dbc, links)) {
-		fprintf(stderr,
-		    "%#0x: dbp: %#0x txn: %#0x lid: %lu locker: %lu",
-		    (u_int)dbc, (u_int)dbc->dbp, (u_int)dbc->txn,
-		    (u_long)dbc->lid, (u_long)dbc->locker);
-		__db_prflags(dbc->flags, fn, stderr);
-		fprintf(stderr, "\n");
-	}
-	DB_THREAD_UNLOCK(dbp);
-
-	return (0);
-}
-#endif /* DEBUG */
-
-/*
- * __db_c_destroy --
- *	Destroy the cursor.
- *
- * PUBLIC: int __db_c_destroy __P((DBC *));
- */
-int
-__db_c_destroy(dbc)
-	DBC *dbc;
-{
-	DB *dbp;
-	int ret;
-
-	dbp = dbc->dbp;
-
-	/* Remove the cursor from the free queue. */
-	DB_THREAD_LOCK(dbp);
-	TAILQ_REMOVE(&dbp->free_queue, dbc, links);
-	DB_THREAD_UNLOCK(dbp);
-
-	/* Call the access specific cursor destroy routine. */
-	ret = dbc->c_am_destroy == NULL ? 0 : dbc->c_am_destroy(dbc);
-
-	/* Free up allocated memory. */
-	if (dbc->rkey.data != NULL)
-		__os_free(dbc->rkey.data, dbc->rkey.ulen);
-	if (dbc->rdata.data != NULL)
-		__os_free(dbc->rdata.data, dbc->rdata.ulen);
-	__os_free(dbc, sizeof(*dbc));
-
-	return (0);
-}
-
-/*
- * db_fd --
- *	Return a file descriptor for flock'ing.
- */
-static int
-__db_fd(dbp, fdp)
-        DB *dbp;
-	int *fdp;
-{
-	DB_PANIC_CHECK(dbp);
-
-	/*
-	 * XXX
-	 * Truly spectacular layering violation.
-	 */
-	return (__mp_xxx_fd(dbp->mpf, fdp));
-}
-
-/*
- * __db_get --
- *	Return a key/data pair.
- */
-static int
-__db_get(dbp, txn, key, data, flags)
-	DB *dbp;
-	DB_TXN *txn;
-	DBT *key, *data;
-	u_int32_t flags;
-{
-	DBC *dbc;
-	int ret, t_ret;
-
-	DB_PANIC_CHECK(dbp);
-
-	if ((ret = __db_getchk(dbp, key, data, flags)) != 0)
-		return (ret);
-
-	if ((ret = dbp->cursor(dbp, txn, &dbc, 0)) != 0)
-		return (ret);
-
-	DEBUG_LREAD(dbc, txn, "__db_get", key, NULL, flags);
-
-	ret = dbc->c_get(dbc, key, data,
-	    flags == 0 || flags == DB_RMW ? flags | DB_SET : flags);
-
-	if ((t_ret = __db_c_close(dbc)) != 0 && ret == 0)
-		ret = t_ret;
-
-	return (ret);
-}
-
-/*
- * __db_put --
- *	Store a key/data pair.
- */
-static int
-__db_put(dbp, txn, key, data, flags)
-	DB *dbp;
-	DB_TXN *txn;
-	DBT *key, *data;
-	u_int32_t flags;
-{
-	DBC *dbc;
-	DBT tdata;
-	int ret, t_ret;
-
-	DB_PANIC_CHECK(dbp);
-
-	if ((ret = __db_putchk(dbp, key, data,
-	    flags, F_ISSET(dbp, DB_AM_RDONLY), F_ISSET(dbp, DB_AM_DUP))) != 0)
-		return (ret);
-
-	if ((ret = dbp->cursor(dbp, txn, &dbc, DB_WRITELOCK)) != 0)
-		return (ret);
-
-	DEBUG_LWRITE(dbc, txn, "__db_put", key, data, flags);
-
-	if (flags == DB_NOOVERWRITE) {
-		/*
-		 * Set DB_DBT_USERMEM, this might be a threaded application and
-		 * the flags checking will catch us.  We don't want the actual
-		 * data, so request a partial of length 0.
-		 */
-		memset(&tdata, 0, sizeof(tdata));
-		F_SET(&tdata, DB_DBT_USERMEM | DB_DBT_PARTIAL);
-		if ((ret = dbc->c_get(dbc, key, &tdata, DB_SET | DB_RMW)) == 0)
-			ret = DB_KEYEXIST;
-		else
-			ret = 0;
-	}
-	if (ret == 0)
-		ret = dbc->c_put(dbc, key, data, DB_KEYLAST);
-
-	if ((t_ret = __db_c_close(dbc)) != 0 && ret == 0)
-		ret = t_ret;
-
-	return (ret);
-}
-
-/*
- * __db_sync --
- *	Flush the database cache.
- *
- * PUBLIC: int __db_sync __P((DB *, u_int32_t));
- */
-int
-__db_sync(dbp, flags)
-	DB *dbp;
-	u_int32_t flags;
-{
-	int ret;
-
-	DB_PANIC_CHECK(dbp);
-
-	if ((ret = __db_syncchk(dbp, flags)) != 0)
-		return (ret);
-
-	/* If it wasn't possible to modify the file, we're done. */
-	if (F_ISSET(dbp, DB_AM_INMEM | DB_AM_RDONLY))
-		return (0);
-
-	/* Flush any dirty pages from the cache to the backing file. */
-	if ((ret = memp_fsync(dbp->mpf)) == DB_INCOMPLETE)
-		ret = 0;
-
-	return (ret);
-}