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Diffstat (limited to 'db2/xa/xa_map.c')
-rw-r--r--db2/xa/xa_map.c305
1 files changed, 0 insertions, 305 deletions
diff --git a/db2/xa/xa_map.c b/db2/xa/xa_map.c
deleted file mode 100644
index d4ebbae22f..0000000000
--- a/db2/xa/xa_map.c
+++ /dev/null
@@ -1,305 +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[] = "@(#)xa_map.c	10.4 (Sleepycat) 10/20/98";
-#endif /* not lint */
-
-#ifndef NO_SYSTEM_INCLUDES
-#include <sys/types.h>
-
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#endif
-
-#include "db_int.h"
-#include "shqueue.h"
-#include "txn.h"
-
-/*
- * This file contains all the mapping information that we need to support
- * the DB/XA interface.
- */
-
-/*
- * __db_rmid_to_env
- *	Return the environment associated with a given XA rmid.
- *
- * PUBLIC: int __db_rmid_to_env __P((int rmid, DB_ENV **envp, int open_ok));
- */
-int
-__db_rmid_to_env(rmid, envp, open_ok)
-	int rmid;
-	DB_ENV **envp;
-	int open_ok;
-{
-	DB_ENV *env;
-	char *dbhome;
-
-	env = TAILQ_FIRST(&DB_GLOBAL(db_envq));
-	if (env != NULL && env->xa_rmid == rmid) {
-		*envp = env;
-		return (0);
-	}
-
-	/*
-	 * When we map an rmid, move that environment to be the first one in
-	 * the list of environments, so we pass the correct environment from
-	 * the upcoming db_xa_open() call into db_open().
-	 */
-	for (; env != NULL; env = TAILQ_NEXT(env, links))
-		if (env->xa_rmid == rmid) {
-			TAILQ_REMOVE(&DB_GLOBAL(db_envq), env, links);
-			TAILQ_INSERT_HEAD(&DB_GLOBAL(db_envq), env, links);
-			*envp = env;
-			return (0);
-		}
-
-	/*
-	 * We have not found the rmid on the environment list.  If we
-	 * are allowed to do an open, search for the rmid on the name
-	 * list and, if we find it, then open it.
-	 */
-	if (!open_ok)
-		return (1);
-
-	if (__db_rmid_to_name(rmid, &dbhome) != 0)
-		return (1);
-#undef XA_FLAGS
-#define	XA_FLAGS \
-	DB_CREATE | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_MPOOL | DB_INIT_TXN
-
-	if (__os_calloc(1, sizeof(DB_ENV), &env) != 0)
-		return (1);
-
-	if (db_appinit(dbhome, NULL, env, XA_FLAGS) != 0) 
-		goto err;
-
-	if (__db_map_rmid(rmid, env) != 0)
-		goto err1;
-
-	__db_unmap_rmid_name(rmid);
-
-	*envp = env;
-	return (0);
-
-err1:	(void)db_appexit(env);
-err:	__os_free(env, sizeof(DB_ENV));
-	return (1);
-}
-
-/*
- * __db_xid_to_txn
- *	Return the txn that corresponds to this XID.
- *
- * PUBLIC: int __db_xid_to_txn __P((DB_ENV *, XID *, size_t *));
- */
-int
-__db_xid_to_txn(dbenv, xid, offp)
-	DB_ENV *dbenv;
-	XID *xid;
-	size_t *offp;
-{
-	DB_TXNREGION *tmr;
-	struct __txn_detail *td;
-
-	/*
-	 * Search the internal active transaction table to find the
-	 * matching xid.  If this is a performance hit, then we
-	 * can create a hash table, but I doubt it's worth it.
-	 */
-	tmr = dbenv->tx_info->region;
-
-	LOCK_TXNREGION(dbenv->tx_info);
-	for (td = SH_TAILQ_FIRST(&tmr->active_txn, __txn_detail);
-	    td != NULL;
-	    td = SH_TAILQ_NEXT(td, links, __txn_detail))
-		if (memcmp(xid->data, td->xid, XIDDATASIZE) == 0)
-			break;
-	UNLOCK_TXNREGION(dbenv->tx_info);
-
-	if (td == NULL)
-		return (EINVAL);
-
-	*offp = (u_int8_t *)td - (u_int8_t *)tmr;
-	return (0);
-}
-
-/*
- * __db_map_rmid
- *	Create a mapping between the specified rmid and environment.
- *
- * PUBLIC: int __db_map_rmid __P((int, DB_ENV *));
- */
-int
-__db_map_rmid(rmid, env)
-	int rmid;
-	DB_ENV *env;
-{
-	if (__os_calloc(1, sizeof(DB_TXN), &env->xa_txn) != 0)
-		return (XAER_RMERR);
-	env->xa_txn->txnid = TXN_INVALID;
-	env->xa_rmid = rmid;
-	TAILQ_INSERT_HEAD(&DB_GLOBAL(db_envq), env, links);
-	return (XA_OK);
-}
-
-/*
- * __db_unmap_rmid
- *	Destroy the mapping for the given rmid.
- *
- * PUBLIC: int __db_unmap_rmid __P((int));
- */
-int
-__db_unmap_rmid(rmid)
-	int rmid;
-{
-	DB_ENV *e;
-
-	for (e = TAILQ_FIRST(&DB_GLOBAL(db_envq));
-	    e->xa_rmid != rmid;
-	    e = TAILQ_NEXT(e, links));
-
-	if (e == NULL)
-		return (EINVAL);
-
-	TAILQ_REMOVE(&DB_GLOBAL(db_envq), e, links);
-	if (e->xa_txn != NULL)
-		__os_free(e->xa_txn, sizeof(DB_TXN));
-	return (0);
-}
-
-/*
- * __db_map_xid
- *	Create a mapping between this XID and the transaction at
- *	"off" in the shared region.
- *
- * PUBLIC: int __db_map_xid __P((DB_ENV *, XID *, size_t));
- */
-int
-__db_map_xid(env, xid, off)
-	DB_ENV *env;
-	XID *xid;
-	size_t off;
-{
-	DB_TXNMGR *tm;
-	TXN_DETAIL *td;
-
-	tm = env->tx_info;
-	td = (TXN_DETAIL *)((u_int8_t *)tm->region + off);
-
-	LOCK_TXNREGION(tm);
-	memcpy(td->xid, xid->data, XIDDATASIZE);
-	UNLOCK_TXNREGION(tm);
-
-	return (0);
-}
-
-/*
- * __db_unmap_xid
- *	Destroy the mapping for the specified XID.
- *
- * PUBLIC: void __db_unmap_xid __P((DB_ENV *, XID *, size_t));
- */
-
-void
-__db_unmap_xid(env, xid, off)
-	DB_ENV *env;
-	XID *xid;
-	size_t off;
-{
-	TXN_DETAIL *td;
-
-	COMPQUIET(xid, NULL);
-
-	td = (TXN_DETAIL *)((u_int8_t *)env->tx_info->region + off);
-	memset(td->xid, 0, sizeof(td->xid));
-}
-
-/*
- * __db_map_rmid_name --
- * 	Create a mapping from an rmid to a name (the xa_info argument).
- * We use this during create and then at some later point when we are
- * trying to map an rmid, we might indicate that it's OK to do an open
- * in which case, we'll get the xa_info parameter from here and then
- * free it up.
- *
- * PUBLIC: int __db_map_rmid_name __P((int, char *));
- */
-
-int
-__db_map_rmid_name(rmid, dbhome)
-	int rmid;
-	char *dbhome;
-{
-	struct __rmname *entry;
-	int ret;
-
-	if ((ret = __os_malloc(sizeof(struct __rmname), NULL, &entry)) != 0)
-		return (ret);
-
-	if ((ret = __os_strdup(dbhome, &entry->dbhome)) != 0) {
-		__os_free(entry, sizeof(struct __rmname));
-		return (ret);
-	}
-
-	entry->rmid = rmid;
-
-	TAILQ_INSERT_HEAD(&DB_GLOBAL(db_nameq), entry, links);
-	return (0);
-}
-
-/*
- * __db_rmid_to_name --
- *	Given an rmid, return the name of the home directory for that
- * rmid.
- *
- * PUBLIC: int __db_rmid_to_name __P((int, char **));
- */
-int
-__db_rmid_to_name(rmid, dbhomep)
-	int rmid;
-	char **dbhomep;
-{
-	struct __rmname *np;
-
-	for (np = TAILQ_FIRST(&DB_GLOBAL(db_nameq)); np != NULL;
-	    np = TAILQ_NEXT(np, links)) {
-		if (np->rmid == rmid) {
-			*dbhomep = np->dbhome;
-			return (0);
-		}
-	}
-	return (1);
-}
-
-/*
- * __db_unmap_rmid_name --
- *	Given an rmid, remove its entry from the name list.
- *
- * PUBLIC:  void __db_unmap_rmid_name __P((int));
- */
-void
-__db_unmap_rmid_name(rmid)
-	int rmid;
-{
-	struct __rmname *np, *next;
-
-	for (np = TAILQ_FIRST(&DB_GLOBAL(db_nameq)); np != NULL; np = next) {
-		next = TAILQ_NEXT(np, links);
-		if (np->rmid == rmid) {
-			TAILQ_REMOVE(&DB_GLOBAL(db_nameq), np, links);
-			__os_freestr(np->dbhome);
-			__os_free(np, sizeof(struct __rmname));
-			return;
-		}
-	}
-	return;
-}
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