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Fix slow noise handshake by reading multiple messages per loop (#9130)

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This commit is contained in:
J. Nick Koston 2025-06-23 04:07:53 +02:00 committed by GitHub
parent 59889a6286
commit 04f592ba6d
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GPG Key ID: B5690EEEBB952194
2 changed files with 48 additions and 29 deletions
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16
esphome/components/api/api_connection.cpp
View File

@ -28,6 +28,12 @@
namespace esphome {
namespace api {
// Read a maximum of 5 messages per loop iteration to prevent starving other components.
// This is a balance between API responsiveness and allowing other components to run.
// Since each message could contain multiple protobuf messages when using packet batching,
// this limits the number of messages processed, not the number of TCP packets.
static constexpr uint8_t MAX_MESSAGES_PER_LOOP = 5;
static const char *const TAG = "api.connection";
static const int ESP32_CAMERA_STOP_STREAM = 5000;
@ -109,12 +115,16 @@ void APIConnection::loop() {
return;
}
const uint32_t now = App.get_loop_component_start_time();
// Check if socket has data ready before attempting to read
if (this->helper_->is_socket_ready()) {
// Read up to MAX_MESSAGES_PER_LOOP messages per loop to improve throughput
for (uint8_t message_count = 0; message_count < MAX_MESSAGES_PER_LOOP; message_count++) {
ReadPacketBuffer buffer;
err = this->helper_->read_packet(&buffer);
if (err == APIError::WOULD_BLOCK) {
// pass
// No more data available
break;
} else if (err != APIError::OK) {
on_fatal_error();
if (err == APIError::SOCKET_READ_FAILED && errno == ECONNRESET) {
@ -127,7 +137,7 @@ void APIConnection::loop() {
}
return;
} else {
this->last_traffic_ = App.get_loop_component_start_time();
this->last_traffic_ = now;
// read a packet
if (buffer.data_len > 0) {
this->read_message(buffer.data_len, buffer.type, &buffer.container[buffer.data_offset]);
@ -138,6 +148,7 @@ void APIConnection::loop() {
return;
}
}
}
// Process deferred batch if scheduled
if (this->deferred_batch_.batch_scheduled &&
@ -152,7 +163,6 @@ void APIConnection::loop() {
static uint8_t max_ping_retries = 60;
static uint16_t ping_retry_interval = 1000;
const uint32_t now = App.get_loop_component_start_time();
if (this->sent_ping_) {
// Disconnect if not responded within 2.5*keepalive
if (now - this->last_traffic_ > (KEEPALIVE_TIMEOUT_MS * 5) / 2) {

11
esphome/components/api/api_frame_helper.cpp
View File

@ -274,12 +274,21 @@ APIError APINoiseFrameHelper::init() {
}
/// Run through handshake messages (if in that phase)
APIError APINoiseFrameHelper::loop() {
// During handshake phase, process as many actions as possible until we can't progress
// socket_->ready() stays true until next main loop, but state_action() will return
// WOULD_BLOCK when no more data is available to read
while (state_ != State::DATA && this->socket_->ready()) {
APIError err = state_action_();
if (err != APIError::OK && err != APIError::WOULD_BLOCK) {
return err;
}
if (err == APIError::WOULD_BLOCK) {
break;
}
}
if (!this->tx_buf_.empty()) {
err = try_send_tx_buf_();
APIError err = try_send_tx_buf_();
if (err != APIError::OK && err != APIError::WOULD_BLOCK) {
return err;
}