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Diffstat (limited to 'qpid/cpp/src/qpid/store/ms-sql/MessageMapRecordset.h')
-rw-r--r-- | qpid/cpp/src/qpid/store/ms-sql/MessageMapRecordset.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/store/ms-sql/MessageMapRecordset.h b/qpid/cpp/src/qpid/store/ms-sql/MessageMapRecordset.h new file mode 100644 index 0000000000..1b0c2f073e --- /dev/null +++ b/qpid/cpp/src/qpid/store/ms-sql/MessageMapRecordset.h @@ -0,0 +1,100 @@ +#ifndef QPID_STORE_MSSQL_MESSAGEMAPRECORDSET_H +#define QPID_STORE_MSSQL_MESSAGEMAPRECORDSET_H + +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * 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 + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + */ + +#include <icrsint.h> +#include "Recordset.h" +#include <qpid/broker/RecoveryManager.h> + +namespace qpid { +namespace store { +namespace ms_sql { + +/** + * @class MessageMapRecordset + * + * Class for the message map (message -> queue) records. + */ +class MessageMapRecordset : public Recordset { + + // These values are defined in a constraint on the tblMessageMap table. + // the prepareStatus column can only be null, 1, or 2. + enum { PREPARE_ADD=1, PREPARE_REMOVE=2 }; + + class MessageMap : public CADORecordBinding { + BEGIN_ADO_BINDING(MessageMap) + ADO_FIXED_LENGTH_ENTRY2(1, adBigInt, messageId, FALSE) + ADO_FIXED_LENGTH_ENTRY2(2, adBigInt, queueId, FALSE) + ADO_FIXED_LENGTH_ENTRY2(3, adTinyInt, prepareStatus, FALSE) + ADO_VARIABLE_LENGTH_ENTRY(4, adVarBinary, xid, sizeof(xid), + xidStatus, xidLength, FALSE) + END_ADO_BINDING() + + public: + uint64_t messageId; + uint64_t queueId; + uint8_t prepareStatus; + char xid[512]; + int xidStatus; + uint32_t xidLength; + }; + + void selectOnXid(const std::string& xid); + +public: + virtual void open(DatabaseConnection* conn, const std::string& table); + + // Add a new mapping + void add(uint64_t messageId, + uint64_t queueId, + const std::string& xid = ""); + + // Remove a specific mapping. + void remove(uint64_t messageId, uint64_t queueId); + + // Mark the indicated message->queue entry pending removal. The entry + // for the mapping is updated to indicate pending removal with the + // specified xid. + void pendingRemove(uint64_t messageId, + uint64_t queueId, + const std::string& xid); + + // Remove mappings for all messages on a specified queue. + void removeForQueue(uint64_t queueId); + + // Commit records recorded as prepared. + void commitPrepared(const std::string& xid); + + // Abort prepared changes. + void abortPrepared(const std::string& xid); + + // Recover the mappings of message ID -> vector<queue ID>. + void recover(MessageQueueMap& msgMap); + + // Dump table contents; useful for debugging. + void dump(); +}; + +}}} // namespace qpid::store::ms_sql + +#endif /* QPID_STORE_MSSQL_MESSAGEMAPRECORDSET_H */ |