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143 lines
3.0 KiB
143 lines
3.0 KiB
3 years ago
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/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1998, 1999
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* Sleepycat Software. All rights reserved.
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*/
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#include "db_config.h"
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#ifndef lint
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static const char sccsid[] = "@(#)xa_db.c 11.4 (Sleepycat) 9/15/99";
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#endif /* not lint */
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#ifndef NO_SYSTEM_INCLUDES
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#include <sys/types.h>
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#endif
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#include "db_int.h"
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#include "xa.h"
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#include "xa_ext.h"
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static int CDB___xa_close __P((DB *, u_int32_t));
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static int CDB___xa_cursor __P((DB *, DB_TXN *, DBC **, u_int32_t));
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static int CDB___xa_del __P((DB *, DB_TXN *, DBT *, u_int32_t));
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static int CDB___xa_get __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t));
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static int CDB___xa_put __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t));
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typedef struct __xa_methods {
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int (*close) __P((DB *, u_int32_t));
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int (*cursor) __P((DB *, DB_TXN *, DBC **, u_int32_t));
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int (*del) __P((DB *, DB_TXN *, DBT *, u_int32_t));
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int (*get) __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t));
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int (*put) __P((DB *, DB_TXN *, DBT *, DBT *, u_int32_t));
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} XA_METHODS;
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/*
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* CDB___db_xa_create --
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* DB XA constructor.
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*
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* PUBLIC: int CDB___db_xa_create __P((DB *));
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*/
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int
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CDB___db_xa_create(dbp)
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DB *dbp;
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{
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XA_METHODS *xam;
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int ret;
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/*
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* Interpose XA routines in front of any method that takes a TXN
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* ID as an argument.
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*/
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if ((ret = CDB___os_calloc(1, sizeof(XA_METHODS), &xam)) != 0)
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return (ret);
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dbp->xa_internal = xam;
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xam->close = dbp->close;
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xam->cursor = dbp->cursor;
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xam->del = dbp->del;
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xam->get = dbp->get;
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xam->put = dbp->put;
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dbp->close = CDB___xa_close;
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dbp->cursor = CDB___xa_cursor;
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dbp->del = CDB___xa_del;
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dbp->get = CDB___xa_get;
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dbp->put = CDB___xa_put;
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return (0);
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}
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static int
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CDB___xa_cursor(dbp, txn, dbcp, flags)
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DB *dbp;
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DB_TXN *txn;
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DBC **dbcp;
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u_int32_t flags;
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{
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DB_TXN *t;
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t = txn != NULL && txn == dbp->open_txn ? txn : dbp->dbenv->xa_txn;
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return (((XA_METHODS *)dbp->xa_internal)->cursor (dbp, t, dbcp, flags));
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}
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static int
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CDB___xa_del(dbp, txn, key, flags)
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DB *dbp;
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DB_TXN *txn;
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DBT *key;
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u_int32_t flags;
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{
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DB_TXN *t;
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t = txn != NULL && txn == dbp->open_txn ? txn : dbp->dbenv->xa_txn;
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return (((XA_METHODS *)dbp->xa_internal)->del(dbp, t, key, flags));
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}
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static int
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CDB___xa_close(dbp, flags)
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DB *dbp;
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u_int32_t flags;
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{
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int (*real_close) __P((DB *, u_int32_t));
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real_close = ((XA_METHODS *)dbp->xa_internal)->close;
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CDB___os_free(dbp->xa_internal, sizeof(XA_METHODS));
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dbp->xa_internal = NULL;
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return (real_close(dbp, flags));
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}
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static int
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CDB___xa_get(dbp, txn, key, data, flags)
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DB *dbp;
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DB_TXN *txn;
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DBT *key, *data;
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u_int32_t flags;
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{
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DB_TXN *t;
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t = txn != NULL && txn == dbp->open_txn ? txn : dbp->dbenv->xa_txn;
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return (((XA_METHODS *)dbp->xa_internal)->get
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(dbp, t, key, data, flags));
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}
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static int
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CDB___xa_put(dbp, txn, key, data, flags)
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DB *dbp;
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DB_TXN *txn;
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DBT *key, *data;
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u_int32_t flags;
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{
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DB_TXN *t;
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t = txn != NULL && txn == dbp->open_txn ? txn : dbp->dbenv->xa_txn;
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return (((XA_METHODS *)dbp->xa_internal)->put
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(dbp, t, key, data, flags));
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}
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