mr2web/esphome-lsm6ds
1
0 Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

[api] Inline ProtoVarInt::parse fast path and return consumed in struct (#14638)

Browse Source 
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
J. Nick KostonandClaude Opus 4.6 authored and GitHub committed 2026-03-10 09:10:55 -10:00
1 parent 2c7ef4f758
commit 6e468936ec
6 files changed
+376 -393
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

esphome/components/api/api_frame_helper_plaintext.cpp
+12 -12
View File
@@ -128,37 +128,37 @@ APIError APIPlaintextFrameHelper::try_read_frame_() {
// Skip indicator byte at position 0
uint8_t varint_pos = 1;
uint32_t consumed = 0;
auto msg_size_varint = ProtoVarInt::parse(&rx_header_buf_[varint_pos], rx_header_buf_pos_ - varint_pos, &consumed);
// rx_header_buf_pos_ >= 3 and varint_pos == 1, so len >= 2
auto msg_size_varint = ProtoVarInt::parse_non_empty(&rx_header_buf_[varint_pos], rx_header_buf_pos_ - varint_pos);
if (!msg_size_varint.has_value()) {
// not enough data there yet
continue;
}
if (msg_size_varint->as_uint32() > MAX_MESSAGE_SIZE) {
if (msg_size_varint.value > MAX_MESSAGE_SIZE) {
state_ = State::FAILED;
HELPER_LOG("Bad packet: message size %" PRIu32 " exceeds maximum %u", msg_size_varint->as_uint32(),
MAX_MESSAGE_SIZE);
HELPER_LOG("Bad packet: message size %" PRIu32 " exceeds maximum %u",
static_cast<uint32_t>(msg_size_varint.value), MAX_MESSAGE_SIZE);
return APIError::BAD_DATA_PACKET;
}
rx_header_parsed_len_ = msg_size_varint->as_uint16();
rx_header_parsed_len_ = static_cast<uint16_t>(msg_size_varint.value);
// Move to next varint position
varint_pos += consumed;
varint_pos += msg_size_varint.consumed;
auto msg_type_varint = ProtoVarInt::parse(&rx_header_buf_[varint_pos], rx_header_buf_pos_ - varint_pos, &consumed);
auto msg_type_varint = ProtoVarInt::parse(&rx_header_buf_[varint_pos], rx_header_buf_pos_ - varint_pos);
if (!msg_type_varint.has_value()) {
// not enough data there yet
continue;
}
if (msg_type_varint->as_uint32() > std::numeric_limits<uint16_t>::max()) {
if (msg_type_varint.value > std::numeric_limits<uint16_t>::max()) {
state_ = State::FAILED;
HELPER_LOG("Bad packet: message type %" PRIu32 " exceeds maximum %u", msg_type_varint->as_uint32(),
std::numeric_limits<uint16_t>::max());
HELPER_LOG("Bad packet: message type %" PRIu32 " exceeds maximum %u",
static_cast<uint32_t>(msg_type_varint.value), std::numeric_limits<uint16_t>::max());
return APIError::BAD_DATA_PACKET;
}
rx_header_parsed_type_ = msg_type_varint->as_uint16();
rx_header_parsed_type_ = static_cast<uint16_t>(msg_type_varint.value);
rx_header_parsed_ = true;
}
// header reading done