diff options
Diffstat (limited to 'qpid/cpp/src/qpid/broker/TxBuffer.h')
| -rw-r--r-- | qpid/cpp/src/qpid/broker/TxBuffer.h | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/qpid/cpp/src/qpid/broker/TxBuffer.h b/qpid/cpp/src/qpid/broker/TxBuffer.h index d49c8ba16a..425f6acb9b 100644 --- a/qpid/cpp/src/qpid/broker/TxBuffer.h +++ b/qpid/cpp/src/qpid/broker/TxBuffer.h @@ -7,9 +7,9 @@ * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at - * + * * http://www.apache.org/licenses/LICENSE-2.0 - * + * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY @@ -34,21 +34,21 @@ * transaction. This work can be committed or rolled back. Committing * is a two-stage process: first all the operations should be * prepared, then if that succeeds they can be committed. - * + * * In the 2pc case, a successful prepare may be followed by either a * commit or a rollback. - * + * * Atomicity of prepare is ensured by using a lower level * transactional facility. This saves explicitly rolling back all the * successfully prepared ops when one of them fails. i.e. we do not * use 2pc internally, we instead ensure that prepare is atomic at a * lower level. This makes individual prepare operations easier to * code. - * + * * Transactions on a messaging broker effect three types of 'action': * (1) updates to persistent storage (2) updates to transient storage * or cached data (3) network writes. - * + * * Of these, (1) should always occur atomically during prepare to * ensure that if the broker crashes while a transaction is being * completed the persistent state (which is all that then remains) is @@ -59,7 +59,7 @@ */ namespace qpid { namespace broker { - class TxBuffer{ + class QPID_BROKER_CLASS_EXTERN TxBuffer { typedef std::vector<TxOp::shared_ptr>::iterator op_iterator; std::vector<TxOp::shared_ptr> ops; protected: @@ -78,7 +78,7 @@ namespace qpid { * * Once prepared, a transaction can be committed (or in * the 2pc case, rolled back). - * + * * @returns true if all the operations prepared * successfully, false if not. */ @@ -88,7 +88,7 @@ namespace qpid { * Signals that the ops all prepared successfully and can * now commit, i.e. the operation can now be fully carried * out. - * + * * Should only be called after a call to prepare() returns * true. */ @@ -96,7 +96,7 @@ namespace qpid { /** * Signals that all ops can be rolled back. - * + * * Should only be called either after a call to prepare() * returns true (2pc) or instead of a prepare call * ('server-local') |