mirror of https://github.com/Icinga/icinga2.git
143 lines
4.3 KiB
C++
143 lines
4.3 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "i2-icinga.h"
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#include "icinga/servicegroup.h"
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#include "base/dynamictype.h"
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#include "base/objectlock.h"
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#include "base/logger_fwd.h"
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#include "base/timer.h"
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#include "base/utility.h"
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#include <boost/smart_ptr/make_shared.hpp>
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#include <boost/foreach.hpp>
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using namespace icinga;
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static boost::mutex l_Mutex;
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static std::map<String, std::vector<Service::WeakPtr> > l_MembersCache;
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static bool l_MembersCacheNeedsUpdate = false;
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static Timer::Ptr l_MembersCacheTimer;
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REGISTER_TYPE(ServiceGroup);
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ServiceGroup::ServiceGroup(const Dictionary::Ptr& serializedUpdate)
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: DynamicObject(serializedUpdate)
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{
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RegisterAttribute("display_name", Attribute_Config, &m_DisplayName);
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}
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ServiceGroup::~ServiceGroup(void)
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{
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InvalidateMembersCache();
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}
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void ServiceGroup::OnRegistrationCompleted(void)
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{
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ASSERT(!OwnsLock());
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InvalidateMembersCache();
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}
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String ServiceGroup::GetDisplayName(void) const
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{
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if (!m_DisplayName.Get().IsEmpty())
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return m_DisplayName;
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else
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return GetName();
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}
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ServiceGroup::Ptr ServiceGroup::GetByName(const String& name)
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{
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DynamicObject::Ptr configObject = DynamicObject::GetObject("ServiceGroup", name);
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if (!configObject)
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BOOST_THROW_EXCEPTION(std::invalid_argument("ServiceGroup '" + name + "' does not exist."));
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return dynamic_pointer_cast<ServiceGroup>(configObject);
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}
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std::set<Service::Ptr> ServiceGroup::GetMembers(void) const
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{
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std::set<Service::Ptr> services;
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{
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boost::mutex::scoped_lock lock(l_Mutex);
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BOOST_FOREACH(const Service::WeakPtr& wservice, l_MembersCache[GetName()]) {
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Service::Ptr service = wservice.lock();
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if (!service)
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continue;
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services.insert(service);
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}
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}
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return services;
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}
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void ServiceGroup::InvalidateMembersCache(void)
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{
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boost::mutex::scoped_lock lock(l_Mutex);
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if (l_MembersCacheNeedsUpdate)
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return; /* Someone else has already requested a refresh. */
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if (!l_MembersCacheTimer) {
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l_MembersCacheTimer = boost::make_shared<Timer>();
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l_MembersCacheTimer->SetInterval(0.5);
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l_MembersCacheTimer->OnTimerExpired.connect(boost::bind(&ServiceGroup::RefreshMembersCache));
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l_MembersCacheTimer->Start();
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}
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l_MembersCacheNeedsUpdate = true;
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}
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void ServiceGroup::RefreshMembersCache(void)
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{
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{
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boost::mutex::scoped_lock lock(l_Mutex);
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if (!l_MembersCacheNeedsUpdate)
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return;
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l_MembersCacheNeedsUpdate = false;
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}
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Log(LogDebug, "icinga", "Updating ServiceGroup members cache.");
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std::map<String, std::vector<Service::WeakPtr> > newMembersCache;
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BOOST_FOREACH(const DynamicObject::Ptr& object, DynamicType::GetObjects("Service")) {
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const Service::Ptr& service = static_pointer_cast<Service>(object);
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Array::Ptr groups = service->GetGroups();
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if (groups) {
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ObjectLock mlock(groups);
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BOOST_FOREACH(const Value& group, groups) {
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newMembersCache[group].push_back(service);
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}
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}
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}
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boost::mutex::scoped_lock lock(l_Mutex);
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l_MembersCache.swap(newMembersCache);
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}
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