diff options
Diffstat (limited to 'qpid/cpp/src/qpid/broker/SessionManager.cpp')
-rw-r--r-- | qpid/cpp/src/qpid/broker/SessionManager.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/broker/SessionManager.cpp b/qpid/cpp/src/qpid/broker/SessionManager.cpp new file mode 100644 index 0000000000..6e235e32c3 --- /dev/null +++ b/qpid/cpp/src/qpid/broker/SessionManager.cpp @@ -0,0 +1,113 @@ +/* + * + * 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 "SessionManager.h" +#include "SessionState.h" +#include "qpid/framing/reply_exceptions.h" +#include "qpid/log/Statement.h" +#include "qpid/log/Helpers.h" +#include "qpid/memory.h" + +#include <boost/bind.hpp> +#include <boost/range.hpp> + +#include <algorithm> +#include <functional> +#include <ostream> + +namespace qpid { +namespace broker { + +using boost::intrusive_ptr; +using namespace sys; +using namespace framing; + +SessionManager::SessionManager(uint32_t a) : ack(a) {} + +SessionManager::~SessionManager() {} + +// FIXME aconway 2008-02-01: pass handler*, allow open unattached. +std::auto_ptr<SessionState> SessionManager::open( + SessionHandler& h, uint32_t timeout_) +{ + Mutex::ScopedLock l(lock); + std::auto_ptr<SessionState> session( + new SessionState(this, &h, timeout_, ack)); + active.insert(session->getId()); + for_each(observers.begin(), observers.end(), + boost::bind(&Observer::opened, _1,boost::ref(*session))); + return session; +} + +void SessionManager::suspend(std::auto_ptr<SessionState> session) { + Mutex::ScopedLock l(lock); + active.erase(session->getId()); + session->suspend(); + session->expiry = AbsTime(now(),session->getTimeout()*TIME_SEC); + if (session->mgmtObject.get() != 0) + session->mgmtObject->set_expireTime ((uint64_t) Duration (session->expiry)); + suspended.push_back(session.release()); // In expiry order + eraseExpired(); +} + +std::auto_ptr<SessionState> SessionManager::resume(const Uuid& id) +{ + Mutex::ScopedLock l(lock); + eraseExpired(); + if (active.find(id) != active.end()) + throw SessionBusyException( + QPID_MSG("Session already active: " << id)); + Suspended::iterator i = std::find_if( + suspended.begin(), suspended.end(), + boost::bind(std::equal_to<Uuid>(), id, boost::bind(&SessionState::getId, _1)) + ); + if (i == suspended.end()) + throw InvalidArgumentException( + QPID_MSG("No suspended session with id=" << id)); + active.insert(id); + std::auto_ptr<SessionState> state(suspended.release(i).release()); + return state; +} + +void SessionManager::erase(const framing::Uuid& id) +{ + Mutex::ScopedLock l(lock); + active.erase(id); +} + +void SessionManager::eraseExpired() { + // Called with lock held. + if (!suspended.empty()) { + Suspended::iterator keep = std::lower_bound( + suspended.begin(), suspended.end(), now(), + boost::bind(std::less<AbsTime>(), boost::bind(&SessionState::expiry, _1), _2)); + if (suspended.begin() != keep) { + QPID_LOG(debug, "Expiring sessions: " << log::formatList(suspended.begin(), keep)); + suspended.erase(suspended.begin(), keep); + } + } +} + +void SessionManager::add(const intrusive_ptr<Observer>& o) { + observers.push_back(o); +} + +}} // namespace qpid::broker |