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[esp32_ble] Replace handler vectors with StaticVector for 560B-2KB memory savings (#11200)

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
J. Nick Koston
2025-10-13 16:33:33 -10:00
committed by GitHub
parent 7c02f2f10a
commit 5bb69a968c
7 changed files with 153 additions and 42 deletions
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32
esphome/components/esp32_ble/ble.h
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@@ -125,19 +125,25 @@ class ESP32BLE : public Component {
void advertising_register_raw_advertisement_callback(std::function<void(bool)> &&callback);
#endif
#ifdef ESPHOME_ESP32_BLE_GAP_EVENT_HANDLER_COUNT
void register_gap_event_handler(GAPEventHandler *handler) { this->gap_event_handlers_.push_back(handler); }
#endif
#ifdef ESPHOME_ESP32_BLE_GAP_SCAN_EVENT_HANDLER_COUNT
void register_gap_scan_event_handler(GAPScanEventHandler *handler) {
this->gap_scan_event_handlers_.push_back(handler);
}
#ifdef USE_ESP32_BLE_CLIENT
#endif
#if defined(USE_ESP32_BLE_CLIENT) && defined(ESPHOME_ESP32_BLE_GATTC_EVENT_HANDLER_COUNT)
void register_gattc_event_handler(GATTcEventHandler *handler) { this->gattc_event_handlers_.push_back(handler); }
#endif
#ifdef USE_ESP32_BLE_SERVER
#if defined(USE_ESP32_BLE_SERVER) && defined(ESPHOME_ESP32_BLE_GATTS_EVENT_HANDLER_COUNT)
void register_gatts_event_handler(GATTsEventHandler *handler) { this->gatts_event_handlers_.push_back(handler); }
#endif
#ifdef ESPHOME_ESP32_BLE_BLE_STATUS_EVENT_HANDLER_COUNT
void register_ble_status_event_handler(BLEStatusEventHandler *handler) {
this->ble_status_event_handlers_.push_back(handler);
}
#endif
void set_enable_on_boot(bool enable_on_boot) { this->enable_on_boot_ = enable_on_boot; }
protected:
@@ -159,16 +165,22 @@ class ESP32BLE : public Component {
private:
template<typename... Args> friend void enqueue_ble_event(Args... args);
// Vectors (12 bytes each on 32-bit, naturally aligned to 4 bytes)
std::vector<GAPEventHandler *> gap_event_handlers_;
std::vector<GAPScanEventHandler *> gap_scan_event_handlers_;
#ifdef USE_ESP32_BLE_CLIENT
std::vector<GATTcEventHandler *> gattc_event_handlers_;
// Handler vectors - use StaticVector when counts are known at compile time
#ifdef ESPHOME_ESP32_BLE_GAP_EVENT_HANDLER_COUNT
StaticVector<GAPEventHandler *, ESPHOME_ESP32_BLE_GAP_EVENT_HANDLER_COUNT> gap_event_handlers_;
#endif
#ifdef USE_ESP32_BLE_SERVER
std::vector<GATTsEventHandler *> gatts_event_handlers_;
#ifdef ESPHOME_ESP32_BLE_GAP_SCAN_EVENT_HANDLER_COUNT
StaticVector<GAPScanEventHandler *, ESPHOME_ESP32_BLE_GAP_SCAN_EVENT_HANDLER_COUNT> gap_scan_event_handlers_;
#endif
#if defined(USE_ESP32_BLE_CLIENT) && defined(ESPHOME_ESP32_BLE_GATTC_EVENT_HANDLER_COUNT)
StaticVector<GATTcEventHandler *, ESPHOME_ESP32_BLE_GATTC_EVENT_HANDLER_COUNT> gattc_event_handlers_;
#endif
#if defined(USE_ESP32_BLE_SERVER) && defined(ESPHOME_ESP32_BLE_GATTS_EVENT_HANDLER_COUNT)
StaticVector<GATTsEventHandler *, ESPHOME_ESP32_BLE_GATTS_EVENT_HANDLER_COUNT> gatts_event_handlers_;
#endif
#ifdef ESPHOME_ESP32_BLE_BLE_STATUS_EVENT_HANDLER_COUNT
StaticVector<BLEStatusEventHandler *, ESPHOME_ESP32_BLE_BLE_STATUS_EVENT_HANDLER_COUNT> ble_status_event_handlers_;
#endif
std::vector<BLEStatusEventHandler *> ble_status_event_handlers_;
// Large objects (size depends on template parameters, but typically aligned to 4 bytes)
esphome::LockFreeQueue<BLEEvent, MAX_BLE_QUEUE_SIZE> ble_events_;