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[mdns] Use FixedVector for txt_records to reduce flash usage (#11228)

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This commit is contained in:
J. Nick Koston
2025-10-14 16:16:59 -10:00
committed by GitHub
parent c983581b6c
commit 7a82379c88
6 changed files with 23 additions and 8 deletions
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9
esphome/components/mdns/mdns_component.cpp
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@@ -83,7 +83,7 @@ void MDNSComponent::compile_records_(StaticVector<MDNSService, MDNS_SERVICE_COUN
#endif
auto &txt_records = service.txt_records;
txt_records.reserve(txt_count);
txt_records.init(txt_count);
if (!friendly_name_empty) {
txt_records.push_back({MDNS_STR(TXT_FRIENDLY_NAME), MDNS_STR(friendly_name.c_str())});
@@ -171,12 +171,7 @@ void MDNSComponent::compile_records_(StaticVector<MDNSService, MDNS_SERVICE_COUN
fallback_service.service_type = MDNS_STR(SERVICE_HTTP);
fallback_service.proto = MDNS_STR(SERVICE_TCP);
fallback_service.port = USE_WEBSERVER_PORT;
fallback_service.txt_records.push_back({MDNS_STR(TXT_VERSION), MDNS_STR(VALUE_VERSION)});
#endif
#ifdef USE_MDNS_STORE_SERVICES
// Copy to member variable if storage is enabled (verbose logging, OpenThread, or extra services)
this->services_ = services;
fallback_service.txt_records = {{MDNS_STR(TXT_VERSION), MDNS_STR(VALUE_VERSION)}};
#endif
}

2
esphome/components/mdns/mdns_component.h
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@@ -38,7 +38,7 @@ struct MDNSService {
// as defined in RFC6763 Section 7, like "_tcp" or "_udp"
const MDNSString *proto;
TemplatableValue<uint16_t> port;
std::vector<MDNSTXTRecord> txt_records;
FixedVector<MDNSTXTRecord> txt_records;
};
class MDNSComponent : public Component {

5
esphome/components/mdns/mdns_esp32.cpp
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@@ -12,8 +12,13 @@ namespace mdns {
static const char *const TAG = "mdns";
void MDNSComponent::setup() {
#ifdef USE_MDNS_STORE_SERVICES
this->compile_records_(this->services_);
const auto &services = this->services_;
#else
StaticVector<MDNSService, MDNS_SERVICE_COUNT> services;
this->compile_records_(services);
#endif
esp_err_t err = mdns_init();
if (err != ESP_OK) {

5
esphome/components/mdns/mdns_esp8266.cpp
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@@ -12,8 +12,13 @@ namespace esphome {
namespace mdns {
void MDNSComponent::setup() {
#ifdef USE_MDNS_STORE_SERVICES
this->compile_records_(this->services_);
const auto &services = this->services_;
#else
StaticVector<MDNSService, MDNS_SERVICE_COUNT> services;
this->compile_records_(services);
#endif
MDNS.begin(this->hostname_.c_str());

5
esphome/components/mdns/mdns_libretiny.cpp
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@@ -12,8 +12,13 @@ namespace esphome {
namespace mdns {
void MDNSComponent::setup() {
#ifdef USE_MDNS_STORE_SERVICES
this->compile_records_(this->services_);
const auto &services = this->services_;
#else
StaticVector<MDNSService, MDNS_SERVICE_COUNT> services;
this->compile_records_(services);
#endif
MDNS.begin(this->hostname_.c_str());

5
esphome/components/mdns/mdns_rp2040.cpp
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@@ -12,8 +12,13 @@ namespace esphome {
namespace mdns {
void MDNSComponent::setup() {
#ifdef USE_MDNS_STORE_SERVICES
this->compile_records_(this->services_);
const auto &services = this->services_;
#else
StaticVector<MDNSService, MDNS_SERVICE_COUNT> services;
this->compile_records_(services);
#endif
MDNS.begin(this->hostname_.c_str());