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safety

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This commit is contained in:
J. Nick Koston
2025-06-11 13:05:01 -05:00
parent 55ee0b116d
commit dc47faa4b6
1 changed files with 16 additions and 0 deletions
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16
esphome/components/esp32_ble/ble_event.h
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@@ -46,6 +46,10 @@ class BLEEvent {
this->type_ = GAP;
this->event_.gap.gap_event = e;
if (p == nullptr) {
return; // Invalid event, but we can't log in header file
}
// Only copy the data we actually use for each GAP event type
switch (e) {
case ESP_GAP_BLE_SCAN_RESULT_EVT:
@@ -85,6 +89,12 @@ class BLEEvent {
this->event_.gattc.gattc_event = e;
this->event_.gattc.gattc_if = i;
if (p == nullptr) {
this->event_.gattc.gattc_param = nullptr;
this->event_.gattc.data = nullptr;
return; // Invalid event, but we can't log in header file
}
// Heap-allocate param and data
// Heap allocation is used because GATTC/GATTS events are rare (<1% of events)
// while GAP events (99%) are stored inline to minimize memory usage
@@ -114,6 +124,12 @@ class BLEEvent {
this->event_.gatts.gatts_event = e;
this->event_.gatts.gatts_if = i;
if (p == nullptr) {
this->event_.gatts.gatts_param = nullptr;
this->event_.gatts.data = nullptr;
return; // Invalid event, but we can't log in header file
}
// Heap-allocate param and data
// Heap allocation is used because GATTC/GATTS events are rare (<1% of events)
// while GAP events (99%) are stored inline to minimize memory usage