Public Access
twislaandClaude Opus 5.5
4cd6a63498
- lib/wifi (host-tested): channel occupancy (neighbour spill, signal weighting, quietest of 1/6/11) and a signal tracker (history, lost detection, click interval) - WifiService: scan results carry BSSID, channel and security; a scan can target one channel for quick tracker refreshes; endListScans() turns the radio back off when Wi-Fi is disabled - Wi-Fi Tools App: networks nearby, channel occupancy bars, signal tracker with clicks (m to mute) - M1 plan: Monitoring-mode views and captures deferred Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT
53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <deque>
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namespace roro {
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// Follows one access point's signal over repeated scans, for finding where it is.
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class SignalTracker {
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public:
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static constexpr int kNoSignal = -127;
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static constexpr uint32_t kLostAfterMs = 5000;
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static constexpr uint32_t kFastestClickMs = 60;
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static constexpr uint32_t kSlowestClickMs = 1200;
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explicit SignalTracker(size_t historySize) : size_(historySize) {}
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void seen(int rssi, uint32_t nowMs) {
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push(rssi);
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latest_ = rssi;
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lastSeenMs_ = nowMs;
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everSeen_ = true;
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}
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void missed() { push(kNoSignal); } // a scan that didn't see it
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bool lost(uint32_t nowMs) const { return !everSeen_ || nowMs - lastSeenMs_ >= kLostAfterMs; }
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int latest() const { return latest_; }
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const std::deque<int>& history() const { return history_; }
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// Time between clicks: fast when the signal is strong (close), slow when faint.
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static uint32_t clickIntervalMs(int rssi) {
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if (rssi >= -35) return kFastestClickMs;
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if (rssi <= -95) return kSlowestClickMs;
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float t = (rssi + 95) / 60.0f; // 0 at -95 dBm, 1 at -35 dBm
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return static_cast<uint32_t>(kSlowestClickMs - t * (kSlowestClickMs - kFastestClickMs));
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}
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private:
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void push(int v) {
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history_.push_back(v);
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if (history_.size() > size_) history_.pop_front();
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}
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size_t size_;
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std::deque<int> history_;
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int latest_ = kNoSignal;
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uint32_t lastSeenMs_ = 0;
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bool everSeen_ = false;
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};
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} // namespace roro
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