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Code Issues Releases Wiki Activity

[api] Reduce memory usage by eliminating duplicate client info strings (#9740)

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
J. Nick Koston
2025-07-20 13:34:59 -10:00
committed by GitHub
parent ecd310dae1
commit 5b5982cfdd
5 changed files with 53 additions and 38 deletions
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27
esphome/components/api/api_connection.h
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@@ -16,6 +16,20 @@
namespace esphome {
namespace api {
// Client information structure
struct ClientInfo {
std::string name; // Client name from Hello message
std::string peername; // IP:port from socket
std::string get_combined_info() const {
if (name == peername) {
// Before Hello message, both are the same
return name;
}
return name + " (" + peername + ")";
}
};
// Keepalive timeout in milliseconds
static constexpr uint32_t KEEPALIVE_TIMEOUT_MS = 60000;
// Maximum number of entities to process in a single batch during initial state/info sending
@@ -270,13 +284,7 @@ class APIConnection : public APIServerConnection {
bool try_to_clear_buffer(bool log_out_of_space);
bool send_buffer(ProtoWriteBuffer buffer, uint8_t message_type) override;
std::string get_client_combined_info() const {
if (this->client_info_ == this->client_peername_) {
// Before Hello message, both are the same (just IP:port)
return this->client_info_;
}
return this->client_info_ + " (" + this->client_peername_ + ")";
}
std::string get_client_combined_info() const { return this->client_info_.get_combined_info(); }
// Buffer allocator methods for batch processing
ProtoWriteBuffer allocate_single_message_buffer(uint16_t size);
@@ -482,9 +490,8 @@ class APIConnection : public APIServerConnection {
std::unique_ptr<camera::CameraImageReader> image_reader_;
#endif
// Group 3: Strings (12 bytes each on 32-bit, 4-byte aligned)
std::string client_info_;
std::string client_peername_;
// Group 3: Client info struct (24 bytes on 32-bit: 2 strings × 12 bytes each)
ClientInfo client_info_;
// Group 4: 4-byte types
uint32_t last_traffic_;