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Propagate drain errors in write_raw_ to preserve original behavior

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This commit is contained in:
J. Nick Koston
2026-03-16 12:09:22 -10:00
parent 2d8c7938c2
commit 6e80814507
1 changed files with 7 additions and 1 deletions
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esphome/components/api/api_frame_helper.cpp
+7 -1
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@@ -128,7 +128,13 @@ APIError APIFrameHelper::write_raw_(const struct iovec *iov, int iovcnt, uint16_
// If there is already backlogged data, try to drain then queue behind it
if (!this->overflow_buf_.empty()) {
this->overflow_buf_.try_drain(this->socket_.get());
ssize_t ret = this->overflow_buf_.try_drain(this->socket_.get());
if (ret == -1) {
const int sav_errno = errno;
HELPER_LOG("Socket write failed with errno %d", sav_errno);
if (this->check_socket_write_err_(sav_errno) != APIError::WOULD_BLOCK)
return APIError::SOCKET_WRITE_FAILED;
}
// If still backlogged, queue new data behind it; otherwise fall through to direct send
if (!this->overflow_buf_.empty())
return this->enqueue_or_fail_(iov, iovcnt, total_write_len, 0);