61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
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#include "repeater.hpp"
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#include "data_request.hpp"
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#include <vanetza/common/runtime.hpp>
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#include <cassert>
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namespace vanetza
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{
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namespace geonet
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{
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Repeater::Repetition::Repetition(const DataRequestVariant& request, const DownPacket& payload) :
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m_request(request), m_payload(new DownPacket(payload))
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{
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}
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Repeater::Repeater(Runtime& rt, const Callback& cb) : m_repeat_fn(cb), m_runtime(rt)
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{
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assert(m_repeat_fn);
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}
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Repeater::~Repeater()
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{
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m_runtime.cancel(this);
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}
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void Repeater::add(const DataRequestVariant& request,
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const DataRequest::Repetition& repetition, const DownPacket& payload)
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{
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if (has_further_repetition(repetition)) {
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const auto next_repetition = m_runtime.now() + units::clock_cast(repetition.interval);
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m_repetitions.emplace_front(request, payload);
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auto added = m_repetitions.begin();
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auto then = std::placeholders::_1;
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m_runtime.schedule(next_repetition, std::bind<void>(&Repeater::trigger, this, added, then), this);
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}
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}
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void Repeater::trigger(std::list<Repetition>::iterator rep, Clock::time_point invocation)
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{
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Repetition& repetition = *rep;
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DataRequest& request = access_request(repetition.m_request);
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assert(request.repetition);
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// reduce remaining interval by one step and occurred triggering delay
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decrement_by_one(*request.repetition);
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auto delayed = m_runtime.now() - invocation;
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request.repetition->maximum -= units::clock_cast(delayed);
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// reset repetition data if this is the last repetition
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if (!has_further_repetition(request)) {
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request.repetition.reset();
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}
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m_repeat_fn(repetition.m_request, std::move(repetition.m_payload));
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m_repetitions.erase(rep);
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}
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} // namespace geonet
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} // namespace vanetza
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