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.
17 #include "private/engineimpl.hpp"
18 #include "private/abort.hpp"
19 #include "private/timerfd.hpp"
20 #include "private/eventfd.hpp"
21 #include "private/system.hpp"
23 using namespace shareddatalayer;
25 EngineImpl::EngineImpl():
26 EngineImpl(System::getSystem())
30 EngineImpl::EngineImpl(System& system):
33 epollFD(system, system.epoll_create1(EPOLL_CLOEXEC))
37 EngineImpl::~EngineImpl()
41 void EngineImpl::handleEvents()
43 if (!handlers.empty())
47 void EngineImpl::epollWait(int timeout)
49 ebuffer.resize(handlers.size());
50 const int count(system.epoll_wait(epollFD, ebuffer.data(), static_cast<int>(ebuffer.size()), timeout));
53 ebuffer.resize(count);
54 for (const auto& i : ebuffer)
59 void EngineImpl::callHandler(const epoll_event& e)
61 handlers[e.data.fd](e.events);
64 void EngineImpl::addMonitoredFD(int fd, unsigned int events, const EventHandler& eh)
66 if (handlers.find(fd) != handlers.end())
67 SHAREDDATALAYER_ABORT("Monitored fd has already been added");
72 system.epoll_ctl(epollFD, EPOLL_CTL_ADD, fd, &e);
73 handlers.insert(std::make_pair(fd, eh));
76 void EngineImpl::addMonitoredFD(FileDescriptor& fd, unsigned int events, const EventHandler& eh)
79 addMonitoredFD(native, events, eh);
81 fd.atClose([this] (int fd)
83 deleteMonitoredFD(fd);
87 void EngineImpl::modifyMonitoredFD(int fd, unsigned int events)
89 if (handlers.find(fd) == handlers.end())
90 SHAREDDATALAYER_ABORT("Modified monitored fd does not exist");
95 system.epoll_ctl(epollFD, EPOLL_CTL_MOD, fd, &e);
98 void EngineImpl::deleteMonitoredFD(int fd)
100 const auto i(handlers.find(fd));
101 if (i == handlers.end())
102 SHAREDDATALAYER_ABORT("Monitored (to be deleted) fd does not exist");
105 for (auto& i : ebuffer)
111 system.epoll_ctl(epollFD, EPOLL_CTL_DEL, fd, nullptr);
114 void EngineImpl::armTimer(Timer& timer, const Timer::Duration& duration, const Timer::Callback& cb)
116 getTimerFD().arm(timer, duration, cb);
119 void EngineImpl::disarmTimer(const Timer& timer)
121 getTimerFD().disarm(timer);
124 void EngineImpl::postCallback(const Callback& callback)
126 getEventFD().post(callback);
129 void EngineImpl::run()
136 void EngineImpl::stop()
138 postCallback([this] () { stopped = true; });
141 TimerFD& EngineImpl::getTimerFD()
144 timerFD.reset(new TimerFD(system, *this));
149 EventFD& EngineImpl::getEventFD()
152 eventFD.reset(new EventFD(system, *this));