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Code Issues Releases Wiki Activity

Optimize bluetooth_proxy memory usage on ESP32 (#9114)

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
J. Nick Koston
2025-06-19 03:11:13 +02:00
committed by GitHub
parent eeb0710ad4
commit 2e11e66db4
4 changed files with 49 additions and 19 deletions
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12
esphome/components/bluetooth_proxy/bluetooth_proxy.h
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@@ -134,11 +134,17 @@ class BluetoothProxy : public esp32_ble_tracker::ESPBTDeviceListener, public Com
BluetoothConnection *get_connection_(uint64_t address, bool reserve);
bool active_;
std::vector<BluetoothConnection *> connections_{};
// Memory optimized layout for 32-bit systems
// Group 1: Pointers (4 bytes each, naturally aligned)
api::APIConnection *api_connection_{nullptr};
// Group 2: Container types (typically 12 bytes on 32-bit)
std::vector<BluetoothConnection *> connections_{};
// Group 3: 1-byte types grouped together
bool active_;
bool raw_advertisements_{false};
// 2 bytes used, 2 bytes padding
};
extern BluetoothProxy *global_bluetooth_proxy; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)