sascha/esphome
1
0
Fork 0
mirror of https://github.com/esphome/esphome.git synced 2025-09-02 19:32:19 +01:00
Code Issues Releases Wiki Activity

Refactor API frame helpers to enable buffer reuse (#8825)

Browse Source
This commit is contained in:
J. Nick Koston
2025-05-18 17:05:20 -04:00
committed by GitHub
parent 574aabdede
commit b0c1e0e28c
5 changed files with 162 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
esphome/components/api/api_connection.h
View File

@@ -405,7 +405,14 @@ class APIConnection : public APIServerConnection {
ProtoWriteBuffer create_buffer(uint32_t reserve_size) override {
// FIXME: ensure no recursive writes can happen
this->proto_write_buffer_.clear();
this->proto_write_buffer_.reserve(reserve_size);
// Get header padding size - used for both reserve and insert
uint8_t header_padding = this->helper_->frame_header_padding();
// Reserve space for header padding + message + footer
// - Header padding: space for protocol headers (7 bytes for Noise, 6 for Plaintext)
// - Footer: space for MAC (16 bytes for Noise, 0 for Plaintext)
this->proto_write_buffer_.reserve(reserve_size + header_padding + this->helper_->frame_footer_size());
// Insert header padding bytes so message encoding starts at the correct position
this->proto_write_buffer_.insert(this->proto_write_buffer_.begin(), header_padding, 0);
return {&this->proto_write_buffer_};
}
bool try_to_clear_buffer(bool log_out_of_space);