2 Copyright (c) 2018-2019 Nokia.
4 Licensed under the Apache License, Version 2.0 (the "License");
5 you may not use this file except in compliance with the License.
6 You may obtain a copy of the License at
8 http://www.apache.org/licenses/LICENSE-2.0
10 Unless required by applicable law or agreed to in writing, software
11 distributed under the License is distributed on an "AS IS" BASIS,
12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 See the License for the specific language governing permissions and
14 limitations under the License.
18 * This source code is part of the near-RT RIC (RAN Intelligent Controller)
19 * platform project (RICP).
22 #include "private/engineimpl.hpp"
23 #include "private/abort.hpp"
24 #include "private/timerfd.hpp"
25 #include "private/eventfd.hpp"
26 #include "private/system.hpp"
28 using namespace shareddatalayer;
30 EngineImpl::EngineImpl():
31 EngineImpl(System::getSystem())
35 EngineImpl::EngineImpl(System& system):
38 epollFD(system, system.epoll_create1(EPOLL_CLOEXEC))
42 EngineImpl::~EngineImpl()
46 void EngineImpl::handleEvents()
48 if (!handlers.empty())
52 void EngineImpl::epollWait(int timeout)
54 ebuffer.resize(handlers.size());
55 const int count(system.epoll_wait(epollFD, ebuffer.data(), static_cast<int>(ebuffer.size()), timeout));
58 ebuffer.resize(count);
59 for (const auto& i : ebuffer)
64 void EngineImpl::callHandler(const epoll_event& e)
66 handlers[e.data.fd](e.events);
69 void EngineImpl::addMonitoredFD(int fd, unsigned int events, const EventHandler& eh)
71 if (handlers.find(fd) != handlers.end())
72 SHAREDDATALAYER_ABORT("Monitored fd has already been added");
77 system.epoll_ctl(epollFD, EPOLL_CTL_ADD, fd, &e);
78 handlers.insert(std::make_pair(fd, eh));
81 void EngineImpl::addMonitoredFD(FileDescriptor& fd, unsigned int events, const EventHandler& eh)
84 addMonitoredFD(native, events, eh);
86 fd.atClose([this] (int fd)
88 deleteMonitoredFD(fd);
92 void EngineImpl::modifyMonitoredFD(int fd, unsigned int events)
94 if (handlers.find(fd) == handlers.end())
95 SHAREDDATALAYER_ABORT("Modified monitored fd does not exist");
100 system.epoll_ctl(epollFD, EPOLL_CTL_MOD, fd, &e);
103 void EngineImpl::deleteMonitoredFD(int fd)
105 const auto i(handlers.find(fd));
106 if (i == handlers.end())
107 SHAREDDATALAYER_ABORT("Monitored (to be deleted) fd does not exist");
110 for (auto& i : ebuffer)
116 system.epoll_ctl(epollFD, EPOLL_CTL_DEL, fd, nullptr);
119 void EngineImpl::armTimer(Timer& timer, const Timer::Duration& duration, const Timer::Callback& cb)
121 getTimerFD().arm(timer, duration, cb);
124 void EngineImpl::disarmTimer(const Timer& timer)
126 getTimerFD().disarm(timer);
129 void EngineImpl::postCallback(const Callback& callback)
131 getEventFD().post(callback);
134 void EngineImpl::run()
141 void EngineImpl::stop()
143 postCallback([this] () { stopped = true; });
146 TimerFD& EngineImpl::getTimerFD()
149 timerFD.reset(new TimerFD(system, *this));
154 EventFD& EngineImpl::getEventFD()
157 eventFD.reset(new EventFD(system, *this));