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test: cover the roam threshold and who gets memStatus

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Move the roam check into worthRoaming() and the memStatus routing into
heapEmitTarget() in Utils so the native tests reach them.

worthRoaming() roams for a gain of at least ROAM_MIN_GAIN_DB, as the
comment and the 6 dB commit said. The old check needed one dB more.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
cjkas 2026-10-13 15:37:12 +02:00
parent 3a2702af6c
commit 293e013aa2
5 changed files with 72 additions and 22 deletions
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9
src/Utils.h
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@ -69,6 +69,15 @@ struct RssiBroadcast {
bool due(int rssi, int channel, uint32_t now, int minDelta, uint32_t minMs) const;
void sent(bool broadcast, int rssi, int channel, uint32_t now);
};
// Whether an AP a scan found for our SSID is worth connecting to. While
// connected it has to be at least minGain dBm stronger than the current AP so
// a small swing doesn't make the device hop between APs.
bool worthRoaming(bool connected, int currentRssi, int apRssi, int minGain);
// Who gets a memStatus event.
enum class heap_emit_t : uint8_t { none, client, broadcast, room };
// num is the socket client asked for, 255 for everyone. A broadcast goes out
// every intervalMs; in between only the clients in room 0 get one.
heap_emit_t heapEmitTarget(uint8_t num, uint32_t sinceLastMs, uint32_t intervalMs, bool roomHasClients);
class Timestamp {
char _timeBuffer[128];