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Ensure we can send batches where the first message exceeds MAX_PACKET_SIZE

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This commit is contained in:
J. Nick Koston
2025-06-13 14:55:17 -05:00
parent 666a3ee5e9
commit bccb6f578a
1 changed files with 6 additions and 2 deletions
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8
esphome/components/api/api_connection.cpp
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@@ -1791,7 +1791,7 @@ void APIConnection::process_batch_() {
this->batch_first_message_ = true;
size_t items_processed = 0;
uint32_t remaining_size = MAX_PACKET_SIZE;
uint32_t remaining_size = std::numeric_limits<uint16_t>::max();
// Track where each message's header padding begins in the buffer
// For plaintext: this is where the 6-byte header padding starts
@@ -1816,11 +1816,15 @@ void APIConnection::process_batch_() {
packet_info.emplace_back(item.message_type, current_offset, proto_payload_size);
// Update tracking variables
items_processed++;
// After first message, set remaining size to MAX_PACKET_SIZE to avoid fragmentation
if (items_processed == 1) {
remaining_size = MAX_PACKET_SIZE;
}
remaining_size -= payload_size;
// Calculate where the next message's header padding will start
// Current buffer size + footer space (that prepare_message_buffer will add for this message)
current_offset = this->parent_->get_shared_buffer_ref().size() + footer_size;
items_processed++;
}
if (items_processed == 0) {