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Diffstat (limited to 'qpid/cpp/src/qpid/client/amqp0_10/SenderImpl.h')
-rw-r--r-- | qpid/cpp/src/qpid/client/amqp0_10/SenderImpl.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/client/amqp0_10/SenderImpl.h b/qpid/cpp/src/qpid/client/amqp0_10/SenderImpl.h new file mode 100644 index 0000000000..c10c77ae18 --- /dev/null +++ b/qpid/cpp/src/qpid/client/amqp0_10/SenderImpl.h @@ -0,0 +1,160 @@ +#ifndef QPID_CLIENT_AMQP0_10_SENDERIMPL_H +#define QPID_CLIENT_AMQP0_10_SENDERIMPL_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/messaging/Address.h" +#include "qpid/messaging/Message.h" +#include "qpid/messaging/SenderImpl.h" +#include "qpid/client/AsyncSession.h" +#include "qpid/client/amqp0_10/SessionImpl.h" +#include <memory> +#include <boost/intrusive_ptr.hpp> +#include <boost/ptr_container/ptr_deque.hpp> + +namespace qpid { +namespace client { +namespace amqp0_10 { + +class AddressResolution; +class MessageSink; +struct OutgoingMessage; + +/** + * + */ +class SenderImpl : public qpid::messaging::SenderImpl +{ + public: + enum State {UNRESOLVED, ACTIVE, CANCELLED}; + + SenderImpl(SessionImpl& parent, const std::string& name, + const qpid::messaging::Address& address); + void send(const qpid::messaging::Message&, bool sync); + void close(); + void setCapacity(uint32_t); + uint32_t getCapacity(); + uint32_t getUnsettled(); + void init(qpid::client::AsyncSession, AddressResolution&); + const std::string& getName() const; + qpid::messaging::Session getSession() const; + + private: + mutable sys::Mutex lock; + boost::intrusive_ptr<SessionImpl> parent; + const std::string name; + const qpid::messaging::Address address; + State state; + std::auto_ptr<MessageSink> sink; + + qpid::client::AsyncSession session; + std::string destination; + std::string routingKey; + + typedef boost::ptr_deque<OutgoingMessage> OutgoingMessages; + OutgoingMessages outgoing; + uint32_t capacity; + uint32_t window; + bool flushed; + const bool unreliable; + + uint32_t checkPendingSends(bool flush); + // Dummy ScopedLock parameter means call with lock held + uint32_t checkPendingSends(bool flush, const sys::Mutex::ScopedLock&); + void replay(const sys::Mutex::ScopedLock&); + void waitForCapacity(); + + //logic for application visible methods: + void sendImpl(const qpid::messaging::Message&); + void sendUnreliable(const qpid::messaging::Message&); + void closeImpl(); + + + //functors for application visible methods (allowing locking and + //retry to be centralised): + struct Command + { + SenderImpl& impl; + + Command(SenderImpl& i) : impl(i) {} + }; + + struct Send : Command + { + const qpid::messaging::Message* message; + bool repeat; + + Send(SenderImpl& i, const qpid::messaging::Message* m) : Command(i), message(m), repeat(true) {} + void operator()() + { + impl.waitForCapacity(); + //from this point message will be recorded if there is any + //failure (and replayed) so need not repeat the call + repeat = false; + impl.sendImpl(*message); + } + }; + + struct UnreliableSend : Command + { + const qpid::messaging::Message* message; + + UnreliableSend(SenderImpl& i, const qpid::messaging::Message* m) : Command(i), message(m) {} + void operator()() + { + //TODO: ideally want to put messages on the outbound + //queue and pull them off in io thread, but the old + //0-10 client doesn't support that option so for now + //we simply don't queue unreliable messages + impl.sendUnreliable(*message); + } + }; + + struct Close : Command + { + Close(SenderImpl& i) : Command(i) {} + void operator()() { impl.closeImpl(); } + }; + + struct CheckPendingSends : Command + { + bool flush; + uint32_t pending; + CheckPendingSends(SenderImpl& i, bool f) : Command(i), flush(f), pending(0) {} + void operator()() { pending = impl.checkPendingSends(flush); } + }; + + //helper templates for some common patterns + template <class F> void execute() + { + F f(*this); + parent->execute(f); + } + + template <class F, class P> bool execute1(P p) + { + F f(*this, p); + return parent->execute(f); + } +}; +}}} // namespace qpid::client::amqp0_10 + +#endif /*!QPID_CLIENT_AMQP0_10_SENDERIMPL_H*/ |