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Diffstat (limited to 'qpid/cpp/src/qpid/broker/ConnectionObservers.h')
-rw-r--r-- | qpid/cpp/src/qpid/broker/ConnectionObservers.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/broker/ConnectionObservers.h b/qpid/cpp/src/qpid/broker/ConnectionObservers.h new file mode 100644 index 0000000000..07e515f3c9 --- /dev/null +++ b/qpid/cpp/src/qpid/broker/ConnectionObservers.h @@ -0,0 +1,79 @@ +#ifndef QPID_BROKER_CONNECTIONOBSERVERS_H +#define QPID_BROKER_CONNECTIONOBSERVERS_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 "ConnectionObserver.h" +#include "qpid/sys/Mutex.h" +#include <set> +#include <algorithm> + +namespace qpid { +namespace broker { + +/** + * A collection of connection observers. + * Calling a ConnectionObserver function will call that function on each observer. + * THREAD SAFE. + */ +class ConnectionObservers : public ConnectionObserver { + public: + void add(boost::shared_ptr<ConnectionObserver> observer) { + sys::Mutex::ScopedLock l(lock); + observers.insert(observer); + } + + void remove(boost::shared_ptr<ConnectionObserver> observer) { + sys::Mutex::ScopedLock l(lock); + observers.erase(observer); + } + + void connection(Connection& c) { + each(boost::bind(&ConnectionObserver::connection, _1, boost::ref(c))); + } + + void opened(Connection& c) { + each(boost::bind(&ConnectionObserver::opened, _1, boost::ref(c))); + } + + void closed(Connection& c) { + each(boost::bind(&ConnectionObserver::closed, _1, boost::ref(c))); + } + + void forced(Connection& c, const std::string& text) { + each(boost::bind(&ConnectionObserver::forced, _1, boost::ref(c), text)); + } + + private: + typedef std::set<boost::shared_ptr<ConnectionObserver> > Observers; + sys::Mutex lock; + Observers observers; + + template <class F> void each(F f) { + sys::Mutex::ScopedLock l(lock); + std::for_each(observers.begin(), observers.end(), f); + } +}; + +}} // namespace qpid::broker + +#endif /*!QPID_BROKER_CONNECTIONOBSERVERS_H*/ |