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https://github.com/esphome/esphome.git
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56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
#include "esphome/core/defines.h"
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#if defined(USE_ESP32) && defined(USE_MDNS)
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#include <mdns.h>
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#include "esphome/core/hal.h"
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#include "esphome/core/log.h"
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#include "mdns_component.h"
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namespace esphome {
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namespace mdns {
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static const char *const TAG = "mdns";
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void MDNSComponent::setup() {
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this->compile_records_();
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esp_err_t err = mdns_init();
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if (err != ESP_OK) {
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ESP_LOGW(TAG, "Init failed: %s", esp_err_to_name(err));
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this->mark_failed();
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return;
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}
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mdns_hostname_set(this->hostname_.c_str());
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mdns_instance_name_set(this->hostname_.c_str());
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for (const auto &service : this->services_) {
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std::vector<mdns_txt_item_t> txt_records;
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for (const auto &record : service.txt_records) {
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mdns_txt_item_t it{};
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// key and value are either compile-time string literals in flash or pointers to dynamic_txt_values_
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// Both remain valid for the lifetime of this function, and ESP-IDF makes internal copies
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it.key = MDNS_STR_ARG(record.key);
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it.value = MDNS_STR_ARG(record.value);
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txt_records.push_back(it);
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}
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uint16_t port = const_cast<TemplatableValue<uint16_t> &>(service.port).value();
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err = mdns_service_add(nullptr, MDNS_STR_ARG(service.service_type), MDNS_STR_ARG(service.proto), port,
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txt_records.data(), txt_records.size());
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if (err != ESP_OK) {
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ESP_LOGW(TAG, "Failed to register service %s: %s", MDNS_STR_ARG(service.service_type), esp_err_to_name(err));
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}
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}
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}
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void MDNSComponent::on_shutdown() {
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mdns_free();
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delay(40); // Allow the mdns packets announcing service removal to be sent
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}
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} // namespace mdns
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} // namespace esphome
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#endif // USE_ESP32
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