void
StratumConnection::getAddressHistory(
const bc::client::obelisk_codec::error_handler &onError,
const bc::client::obelisk_codec::fetch_history_handler &onReply,
const bc::payment_address &address, size_t fromHeight)
{
JsonArray params;
params.append(json_string(address.encoded().c_str()));
auto errorShim = [onError](Status status)
{
onError(std::make_error_code(std::errc::bad_message));
};
auto decoder = [onReply](JsonPtr payload) -> Status
{
JsonArray arrayJson(payload);
bc::client::history_list history;
size_t size = arrayJson.size();
history.reserve(size);
for (size_t i = 0; i < size; i++)
{
struct HistoryJson:
public JsonObject
{
ABC_JSON_CONSTRUCTORS(HistoryJson, JsonObject)
ABC_JSON_STRING(txid, "tx_hash", nullptr)
ABC_JSON_INTEGER(height, "height", 0)
};
HistoryJson json(arrayJson[i]);
bc::hash_digest hash;
if (!json.txidOk() || !bc::decode_hash(hash, json.txid()))
return ABC_ERROR(ABC_CC_Error, "Bad txid");
bc::client::history_row row;
row.output.hash = hash;
row.output_height = json.height();
row.spend.hash = bc::null_hash;
history.push_back(row);
}
onReply(history);
return Status();
};
void TxUpdater::query_address(const bc::payment_address &address,
int server_index)
{
ABC_DebugLevel(2,"query_address ENTER %s", address.encoded().c_str());
std::string servers = "";
std::string maxed_servers = "";
int total_queries = 0;
int num_servers = 0;
int num_maxed_servers = 0;
if (!connections_.size())
{
ABC_DebugLevel(2,"query_address connections_ vector empty");
}
for (auto &it: connections_)
{
Connection &bconn = *it;
auto idx = bconn.server_index;
// If there is a preferred server index to use. Only query that server
if (ALL_SERVERS != server_index)
{
if (bconn.server_index != server_index)
continue;
}
if (bconn.queued_queries_ > max_queries)
{
if (num_maxed_servers)
maxed_servers += " ";
maxed_servers += std::to_string(idx);
num_maxed_servers++;
ABC_DebugLevel(2,
"TxUpdater::query_address() idx=%d (queued > max) for address=%s queued_queries=%d",
idx, address.encoded().c_str(), bconn.queued_queries_);
continue;
}
if (num_servers)
servers += " ";
servers += std::to_string(idx);
auto on_error = [this, idx, address, &bconn](const std::error_code &error)
{
ABC_DebugLevel(1,"query_address ON_ERROR idx:%d addr:%s failed:%s",
idx, address.encoded().c_str(), error.message().c_str());
addressCache_.checkEnd(address.encoded(), false);
failed_ = true;
failed_server_idx_ = idx;
query_done(idx, bconn);
};
auto on_done = [this, idx, address,
&bconn](const bc::client::history_list &history)
{
ABC_DebugLevel(2,"TxUpdater::query_address ENTER ON_DONE idx:%d addr:%s", idx,
address.encoded().c_str());
ABC_DebugLevel(2," Looping over address transactions... ");
addressCache_.checkEnd(address.encoded(), true);
for (auto &row: history)
{
ABC_DebugLevel(2," Watching output tx=%s",
bc::encode_hash(row.output.hash).c_str());
watch_tx(row.output.hash, true, idx, row.output_height);
if (row.spend.hash != bc::null_hash)
{
watch_tx(row.spend.hash, true, idx, 0);
ABC_DebugLevel(2," Watching spend tx=%s",
bc::encode_hash(row.spend.hash).c_str());
}
}
query_done(idx, bconn);
ABC_DebugLevel(2,"TxUpdater::query_address EXIT ON_DONE idx:%d addr:%s", idx,
address.encoded().c_str());
};
bconn.queued_queries_++;
num_servers++;
total_queries += bconn.queued_queries_;
ABC_DebugLevel(2,"TxUpdater::query_address idx=%d queued_queries=%d %s", idx,
bconn.queued_queries_, address.encoded().c_str());
if (ConnectionType::libbitcoin == bconn.type)
bconn.bc_codec.address_fetch_history(on_error, on_done, address);
else if (ConnectionType::stratum == bconn.type)
bconn.stratumCodec.getAddressHistory(on_error, on_done, address);
}
if (num_servers)
ABC_DebugLevel(2,"query_address svrs=[%s] maxed_svrs=[%s] avg_q=%.1f addr=%s",
servers.c_str(), maxed_servers.c_str(), (float)total_queries/(float)num_servers,
address.encoded().c_str());
ABC_DebugLevel(2,"query_address EXIT %s", address.encoded().c_str());
}