Ashin Walpola
0e9525162d
obu-firmware builds against vanetza-idf from microbu-esp32c5/external, but that tree was gitignored, so a clone of this repository could not build the firmware it ships. It is now committed here as ordinary files in its own folder, microbu-esp32c5/: the colleague's commit cf4b99f plus the V2X2MAP bridge's signature verification (--trust) used on the bench. Nothing is fetched from or pushed to the colleague's repository; this repository and its remotes carry everything. The folder's own .gitignore keeps build output, downloaded components and private key material out, as it did there; the committed file set is identical to that repository's tracked files. The ESP32-C5 is still flashed from obu-firmware/, which only takes vanetza-idf from microbu-esp32c5/, so the two stay separate folders. FLASHING.md says how to take a newer version of the colleague's tree (copy it over the folder, rebuild, test, commit).
72 lines
1.7 KiB
C++
72 lines
1.7 KiB
C++
#include <vanetza/common/runtime.hpp>
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#include <vanetza/dcc/burst_budget.hpp>
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#include <cassert>
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namespace vanetza
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{
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namespace dcc
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{
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namespace
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{
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// these constants are given in C2C-CC Basic System Profile (last v1.3.0)
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constexpr Clock::duration T_Burst = std::chrono::seconds(1);
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constexpr Clock::duration T_BurstPeriod = std::chrono::seconds(10);
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constexpr std::size_t N_Burst = 20;
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} // namespace
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BurstBudget::BurstBudget(const Runtime& rt) :
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m_runtime(rt), m_messages(N_Burst), m_burst_duration(T_Burst), m_burst_period(T_BurstPeriod)
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{
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}
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BurstBudget::~BurstBudget()
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{
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}
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Clock::duration BurstBudget::delay()
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{
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assert(m_burst_duration < m_burst_period);
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Clock::duration delay = Clock::duration::max();
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if (m_messages.empty()) {
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delay = Clock::duration::zero();
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} else if (m_messages.front() + m_burst_duration > m_runtime.now() && !m_messages.full()) {
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delay = Clock::duration::zero();
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} else if (m_messages.front() + m_burst_period < m_runtime.now()) {
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m_messages.clear();
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delay = Clock::duration::zero();
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} else {
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delay = m_messages.front() + m_burst_period - m_runtime.now();
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}
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return delay;
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}
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void BurstBudget::notify()
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{
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m_messages.push_back(m_runtime.now());
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}
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void BurstBudget::burst_messages(std::size_t n)
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{
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// circular_buffer::resize removes last elements if necessary
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m_messages.resize(n);
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}
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void BurstBudget::burst_duration(Clock::duration d)
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{
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assert(d > Clock::duration::zero());
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m_burst_duration = d;
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}
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void BurstBudget::burst_period(Clock::duration p)
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{
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assert(p > Clock::duration::zero());
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m_burst_period = p;
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}
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} // namespace dcc
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} // namespace vanetza
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