Green-Sky/tox_ngc_ft1
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fix send completion and resulting ack for unknown transfer spam

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Green Sky
2023-01-17 17:49:51 +01:00
parent ae9e2729d2
commit aa9c7c44ba
1 changed files with 21 additions and 13 deletions
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34
ngc_ft1.cpp
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@@ -71,7 +71,7 @@ struct RecvSequenceBuffer {
void add(uint16_t seq_id, std::vector<uint8_t>&& data) {
entries[seq_id] = {data};
ack_seq_ids.push_back(seq_id);
if (ack_seq_ids.size() > 5) { // TODO: magic
if (ack_seq_ids.size() > 3) { // TODO: magic
ack_seq_ids.pop_front();
}
}
@@ -142,11 +142,8 @@ struct NGC_FT1 {
SENDING, // we got the ack and are now sending data
// is this real?
FINISHING, // we sent all data but acks still outstanding????
FINFIN, // we sent the data_fin and are waiting for the data_fin_ack
// delete
} state;
@@ -263,9 +260,9 @@ void NGC_FT1_iterate(Tox *tox, NGC_FT1* ngc_ft1_ctx, float time_delta) {
std::vector<uint8_t> new_data;
// TODO: parameterize packet size? -> only if JF increases lossy packet size >:)
size_t chunk_size = std::min<size_t>(450u, tf.file_size - tf.file_size_current);
size_t chunk_size = std::min<size_t>(490u, tf.file_size - tf.file_size_current);
if (chunk_size == 0) {
// TODO: set to finishing?
tf.state = State::FINISHING;
break; // we done
}
@@ -290,11 +287,21 @@ void NGC_FT1_iterate(Tox *tox, NGC_FT1* ngc_ft1_ctx, float time_delta) {
}
}
break;
case State::FINISHING:
case State::FINISHING: // we still have unacked packets
tf.ssb.for_each(time_delta, [&](uint16_t id, const std::vector<uint8_t>& data, float& time_since_activity) {
// no ack after 5 sec -> resend
if (time_since_activity >= ngc_ft1_ctx->options.sending_resend_without_ack_after) {
_send_pkg_FT1_DATA(tox, group_number, peer_number, idx, id, data.data(), data.size());
time_since_activity = 0.f;
}
});
if (tf.time_since_activity >= ngc_ft1_ctx->options.sending_give_up_after) {
// no ack after 30sec, close ft
// TODO: notify app
fprintf(stderr, "FT: warning, sending ft finishing timed out, deleting\n");
tf_opt.reset();
}
break;
// finfin o.o
default: // invalid state, delete
fprintf(stderr, "FT: error, ft in invalid state, deleting\n");
tf_opt.reset();
@@ -804,8 +811,8 @@ static void _handle_FT1_DATA_ACK(
NGC_FT1::Group::Peer::SendTransfer& transfer = peer.send_transfers[transfer_id].value();
using State = NGC_FT1::Group::Peer::SendTransfer::State;
if (transfer.state != State::SENDING) {
fprintf(stderr, "FT: data_ack but not in SENDING state\n");
if (transfer.state != State::SENDING && transfer.state != State::FINISHING) {
fprintf(stderr, "FT: data_ack but not in SENDING or FINISHING state (%d)\n", int(transfer.state));
return;
}
@@ -825,7 +832,8 @@ static void _handle_FT1_DATA_ACK(
transfer.ssb.erase(seq_id);
}
if (transfer.file_size == transfer.file_size_current) {
// delete if all packets acked
if (transfer.file_size == transfer.file_size_current && transfer.ssb.size() == 0) {
fprintf(stderr, "FT: %d done\n", transfer_id);
peer.send_transfers[transfer_id] = std::nullopt;
}