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[mdns][openthread] Use StaticVector for services storage with compile-time capacity (#10976)

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This commit is contained in:
J. Nick Koston
2025-10-05 15:30:17 -05:00
committed by GitHub
parent 19439199cc
commit 0fd71ca211
7 changed files with 44 additions and 51 deletions
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17
esphome/components/mdns/__init__.py
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@@ -17,6 +17,11 @@ from esphome.coroutine import CoroPriority
CODEOWNERS = ["@esphome/core"]
DEPENDENCIES = ["network"]
# Components that create mDNS services at runtime
# IMPORTANT: If you add a new component here, you must also update the corresponding
# #ifdef blocks in mdns_component.cpp compile_records_() method
COMPONENTS_WITH_MDNS_SERVICES = ("api", "prometheus", "web_server")
mdns_ns = cg.esphome_ns.namespace("mdns")
MDNSComponent = mdns_ns.class_("MDNSComponent", cg.Component)
MDNSTXTRecord = mdns_ns.struct("MDNSTXTRecord")
@@ -91,12 +96,20 @@ async def to_code(config):
cg.add_define("USE_MDNS")
var = cg.new_Pvariable(config[CONF_ID])
await cg.register_component(var, config)
# Calculate compile-time service count
service_count = sum(
1 for key in COMPONENTS_WITH_MDNS_SERVICES if key in CORE.config
) + len(config[CONF_SERVICES])
if config[CONF_SERVICES]:
cg.add_define("USE_MDNS_EXTRA_SERVICES")
# Ensure at least 1 service (fallback service)
cg.add_define("MDNS_SERVICE_COUNT", max(1, service_count))
var = cg.new_Pvariable(config[CONF_ID])
await cg.register_component(var, config)
for service in config[CONF_SERVICES]:
txt = [
cg.StructInitializer(