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[api] Use static allocation for areas and devices in DeviceInfoResponse (#10038)

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Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
J. Nick Koston 2025-08-03 16:37:47 -10:00 committed by GitHub
parent 6a5eb460ef
commit c0c0a42362
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4 changed files with 21 additions and 13 deletions
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4
esphome/components/api/api.proto
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@ -250,8 +250,8 @@ message DeviceInfoResponse {
// Supports receiving and saving api encryption key
bool api_encryption_supported = 19 [(field_ifdef) = "USE_API_NOISE"];
repeated DeviceInfo devices = 20 [(field_ifdef) = "USE_DEVICES"];
repeated AreaInfo areas = 21 [(field_ifdef) = "USE_AREAS"];
repeated DeviceInfo devices = 20 [(field_ifdef) = "USE_DEVICES", (fixed_array_size_define) = "ESPHOME_DEVICE_COUNT"];
repeated AreaInfo areas = 21 [(field_ifdef) = "USE_AREAS", (fixed_array_size_define) = "ESPHOME_AREA_COUNT"];
// Top-level area info to phase out suggested_area
AreaInfo area = 22 [(field_ifdef) = "USE_AREAS"];

12
esphome/components/api/api_connection.cpp
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@ -1462,18 +1462,22 @@ bool APIConnection::send_device_info_response(const DeviceInfoRequest &msg) {
resp.api_encryption_supported = true;
#endif
#ifdef USE_DEVICES
size_t device_index = 0;
for (auto const &device : App.get_devices()) {
resp.devices.emplace_back();
auto &device_info = resp.devices.back();
if (device_index >= ESPHOME_DEVICE_COUNT)
break;
auto &device_info = resp.devices[device_index++];
device_info.device_id = device->get_device_id();
device_info.set_name(StringRef(device->get_name()));
device_info.area_id = device->get_area_id();
}
#endif
#ifdef USE_AREAS
size_t area_index = 0;
for (auto const &area : App.get_areas()) {
resp.areas.emplace_back();
auto &area_info = resp.areas.back();
if (area_index >= ESPHOME_AREA_COUNT)
break;
auto &area_info = resp.areas[area_index++];
area_info.area_id = area->get_area_id();
area_info.set_name(StringRef(area->get_name()));
}

12
esphome/components/api/api_pb2.cpp
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@ -115,12 +115,12 @@ void DeviceInfoResponse::encode(ProtoWriteBuffer buffer) const {
buffer.encode_bool(19, this->api_encryption_supported);
#endif
#ifdef USE_DEVICES
for (auto &it : this->devices) {
for (const auto &it : this->devices) {
buffer.encode_message(20, it, true);
}
#endif
#ifdef USE_AREAS
for (auto &it : this->areas) {
for (const auto &it : this->areas) {
buffer.encode_message(21, it, true);
}
#endif
@ -167,10 +167,14 @@ void DeviceInfoResponse::calculate_size(ProtoSize &size) const {
size.add_bool(2, this->api_encryption_supported);
#endif
#ifdef USE_DEVICES
size.add_repeated_message(2, this->devices);
for (const auto &it : this->devices) {
size.add_message_object_force(2, it);
}
#endif
#ifdef USE_AREAS
size.add_repeated_message(2, this->areas);
for (const auto &it : this->areas) {
size.add_message_object_force(2, it);
}
#endif
#ifdef USE_AREAS
size.add_message_object(2, this->area);

6
esphome/components/api/api_pb2.h
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@ -490,7 +490,7 @@ class DeviceInfo : public ProtoMessage {
class DeviceInfoResponse : public ProtoMessage {
public:
static constexpr uint8_t MESSAGE_TYPE = 10;
static constexpr uint8_t ESTIMATED_SIZE = 211;
static constexpr uint8_t ESTIMATED_SIZE = 247;
#ifdef HAS_PROTO_MESSAGE_DUMP
const char *message_name() const override { return "device_info_response"; }
#endif
@ -543,10 +543,10 @@ class DeviceInfoResponse : public ProtoMessage {
bool api_encryption_supported{false};
#endif
#ifdef USE_DEVICES
std::vector<DeviceInfo> devices{};
std::array<DeviceInfo, ESPHOME_DEVICE_COUNT> devices{};
#endif
#ifdef USE_AREAS
std::vector<AreaInfo> areas{};
std::array<AreaInfo, ESPHOME_AREA_COUNT> areas{};
#endif
#ifdef USE_AREAS
AreaInfo area{};