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82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1997-2002
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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 revid[] = "$Id: cxx_txn.cpp,v 11.27 2002/07/20 13:50:11 dda Exp $";
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#endif /* not lint */
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#include <errno.h>
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#include "db_cxx.h"
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#include "dbinc/cxx_int.h"
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#include "db_int.h"
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// Helper macro for simple methods that pass through to the
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// underlying C method. It may return an error or raise an exception.
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// Note this macro expects that input _argspec is an argument
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// list element (e.g., "char *arg") and that _arglist is the arguments
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// that should be passed through to the C method (e.g., "(db, arg)")
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//
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#define DBTXN_METHOD(_name, _delete, _argspec, _arglist) \
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int DbTxn::_name _argspec \
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{ \
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int ret; \
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DB_TXN *txn = unwrap(this); \
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\
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ret = txn->_name _arglist; \
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/* Weird, but safe if we don't access this again. */ \
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if (_delete) \
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delete this; \
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if (!DB_RETOK_STD(ret)) \
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DB_ERROR("DbTxn::" # _name, ret, ON_ERROR_UNKNOWN); \
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return (ret); \
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}
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// private constructor, never called but needed by some C++ linkers
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DbTxn::DbTxn()
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: imp_(0)
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{
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}
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DbTxn::DbTxn(DB_TXN *txn)
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: imp_(wrap(txn))
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{
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txn->api_internal = this;
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}
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DbTxn::~DbTxn()
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{
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}
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DBTXN_METHOD(abort, 1, (), (txn))
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DBTXN_METHOD(commit, 1, (u_int32_t flags), (txn, flags))
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DBTXN_METHOD(discard, 1, (u_int32_t flags), (txn, flags))
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u_int32_t DbTxn::id()
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{
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DB_TXN *txn;
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txn = unwrap(this);
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return (txn->id(txn)); // no error
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}
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DBTXN_METHOD(prepare, 0, (u_int8_t *gid), (txn, gid))
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DBTXN_METHOD(set_timeout, 0, (db_timeout_t timeout, u_int32_t flags),
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(txn, timeout, flags))
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// static method
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DbTxn *DbTxn::wrap_DB_TXN(DB_TXN *txn)
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{
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DbTxn *wrapped_txn = get_DbTxn(txn);
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if (wrapped_txn == NULL)
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wrapped_txn = new DbTxn(txn);
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return wrapped_txn;
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}
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