diff options
Diffstat (limited to 'qpid/cpp/src/qpid/broker/QueueCursor.h')
-rw-r--r-- | qpid/cpp/src/qpid/broker/QueueCursor.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/broker/QueueCursor.h b/qpid/cpp/src/qpid/broker/QueueCursor.h new file mode 100644 index 0000000000..2551b64a48 --- /dev/null +++ b/qpid/cpp/src/qpid/broker/QueueCursor.h @@ -0,0 +1,71 @@ +#ifndef QPID_BROKER_QUEUECURSOR_H +#define QPID_BROKER_QUEUECURSOR_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 "qpid/broker/BrokerImportExport.h" +#include "qpid/sys/IntegerTypes.h" +#include <boost/shared_ptr.hpp> + +namespace qpid { +namespace broker { + +class Message; + +enum SubscriptionType +{ + CONSUMER, + BROWSER, + PURGE, + REPLICATOR +}; + +class CursorContext { + public: + virtual ~CursorContext() {} +}; +/** + * + */ +class QueueCursor +{ + public: + QPID_BROKER_EXTERN QueueCursor(SubscriptionType type = CONSUMER); + + private: + SubscriptionType type; + int32_t position; + int32_t version; + bool valid; + boost::shared_ptr<CursorContext> context; + + void setPosition(int32_t p, int32_t v); + bool check(const Message& m); + bool isValid(int32_t v); + + friend class MessageDeque; + friend class MessageMap; + friend class PriorityQueue; + template <typename T> friend class IndexedDeque; +}; +}} // namespace qpid::broker + +#endif /*!QPID_BROKER_QUEUECURSOR_H*/ |