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Merge branch 'esp32_mdns_no_heap' into integration

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This commit is contained in:
J. Nick Koston
2026-01-20 13:09:27 -10:00
parent 768ffc43cf d93cffedfa
commit 6f6a439c5b
1 changed files with 4 additions and 3 deletions
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7
esphome/components/mdns/mdns_esp32.cpp
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@@ -24,13 +24,14 @@ static void register_esp32(MDNSComponent *comp, StaticVector<MDNSService, MDNS_S
mdns_instance_name_set(hostname);
for (const auto &service : services) {
auto txt_records = std::make_unique<mdns_txt_item_t[]>(service.txt_records.size());
// Stack buffer for up to 16 txt records, heap fallback for more
SmallBufferWithHeapFallback<16, mdns_txt_item_t> txt_records(service.txt_records.size());
for (size_t i = 0; i < service.txt_records.size(); i++) {
const auto &record = service.txt_records[i];
// key and value are either compile-time string literals in flash or pointers to dynamic_txt_values_
// Both remain valid for the lifetime of this function, and ESP-IDF makes internal copies
txt_records[i].key = MDNS_STR_ARG(record.key);
txt_records[i].value = MDNS_STR_ARG(record.value);
txt_records.get()[i].key = MDNS_STR_ARG(record.key);
txt_records.get()[i].value = MDNS_STR_ARG(record.value);
}
uint16_t port = const_cast<TemplatableValue<uint16_t> &>(service.port).value();
err = mdns_service_add(nullptr, MDNS_STR_ARG(service.service_type), MDNS_STR_ARG(service.proto), port,