Fulcrum/Controller.cpp
Calin Culianu 7c63bba5d0 nits
2019-12-02 09:43:03 +02:00

684 lines
29 KiB
C++

#include "BlockProc.h"
#include "BTC.h"
#include "Controller.h"
#include <cassert>
#include <iterator>
#include <list>
#include <map>
Controller::Controller(const std::shared_ptr<Options> &o)
: Mgr(nullptr), options(o)
{
setObjectName("Controller");
_thread.setObjectName(objectName());
}
Controller::~Controller() { Debug("%s", __FUNCTION__); cleanup(); }
void Controller::startup()
{
storage = std::make_unique<Storage>(options);
storage->startup(); // may throw here
bitcoindmgr = std::make_unique<BitcoinDMgr>(options->bitcoind.first, options->bitcoind.second, options->rpcuser, options->rpcpassword);
{
// some setup code that waits for bitcoind to be ready before kicking off our "process" method
auto waitForBitcoinD = [this] {
auto constexpr waitTimer = "wait4bitcoind", callProcessTimer = "callProcess";
int constexpr msgPeriod = 10000, // 10sec
smallDelay = 100;
stopTimer(pollTimerName);
stopTimer(callProcessTimer);
callOnTimerSoon(msgPeriod, waitTimer, []{ Log("Waiting for bitcoind..."); return true; }, false, Qt::TimerType::VeryCoarseTimer);
// connection to kick off our 'process' method once the first auth is received
auto connPtr = std::make_shared<QMetaObject::Connection>();
*connPtr = connect(bitcoindmgr.get(), &BitcoinDMgr::gotFirstGoodConnection, this, [this, connPtr](quint64 id) mutable {
if (connPtr) {
stopTimer(waitTimer);
if (!disconnect(*connPtr)) Fatal() << "Failed to disconnect 'authenticated' signal! FIXME!"; // this should never happen but if it does, app quits.
connPtr.reset(); // clear connPtr right away to 1. delte it asap and 2. so we are guaranteed not to reenter this block for this connection should there be a spurious signal emitted.
Debug() << "Auth recvd from bicoind with id: " << id << ", proceeding with processing ...";
callOnTimerSoonNoRepeat(smallDelay, callProcessTimer, [this]{process();}, true);
}
});
};
waitForBitcoinD();
conns += connect(bitcoindmgr.get(), &BitcoinDMgr::allConnectionsLost, this, waitForBitcoinD);
conns += connect(bitcoindmgr.get(), &BitcoinDMgr::inWarmUp, this, [last = -1.0](const QString &msg) mutable {
// just print a message to the log as to why we keep dropping conn. -- if bitcoind is still warming up
auto now = Util::getTimeSecs();
if (now-last >= 1.0) { // throttled to not spam log
last = now;
Log() << "bitcoind is still warming up: " << msg;
}
});
}
bitcoindmgr->startup(); // may throw
// We defer listening for connections until we hit the "upToDate" state at least once, to prevent problems
// for clients.
auto connPtr = std::make_shared<QMetaObject::Connection>();
*connPtr = connect(this, &Controller::upToDate, this, [this, connPtr] {
if (connPtr) disconnect(*connPtr);
if (!srvmgr) {
if (!origThread) {
Fatal() << "INTERNAL ERROR: Controller's creation thread is null; cannot start SrvMgr, exiting!";
return;
}
srvmgr = std::make_unique<SrvMgr>(options->interfaces);
// this object will live on our creation thread (normally the main thread)
srvmgr->moveToThread(origThread);
// now, start it up on our creation thread (normally the main thread)
Util::VoidFuncOnObjectNoThrow(srvmgr.get(), [this]{
// creation thread (normally the main thread)
try {
srvmgr->startup(); // may throw Exception, waits for servers to bind
} catch (const Exception & e) {
// exit app on bind/listen failure.
Fatal() << e.what();
}
}); // wait for srvmgr's thread (usually the main thread)
}
}, Qt::QueuedConnection);
start(); // start our thread
}
void Controller::cleanup()
{
stop();
tasks.clear(); // deletes all tasks asap
if (srvmgr) { Log("Stopping SrvMgr ... "); srvmgr->cleanup(); srvmgr.reset(); }
if (bitcoindmgr) { Log("Stopping BitcoinDMgr ... "); bitcoindmgr->cleanup(); bitcoindmgr.reset(); }
if (storage) { Log("Closing storage ..."); storage->cleanup(); storage.reset(); }
sm.reset();
}
/// Encapsulates basically the data returned from bitcoind by the getblockchaininfo RPC method.
/// This has been separated out into its own struct for future use to detect blockchain changes.
/// TODO: Refactor this out to storage, etc to detect when blockchain changed.
struct ChainInfo {
QString toString() const;
QString chain = "";
int blocks = 0, headers = -1;
QByteArray bestBlockhash; ///< decoded bytes
double difficulty = 0.0;
int64_t mtp = 0;
double verificationProgress = 0.0;
bool initialBlockDownload = false;
QByteArray chainWork; ///< decoded bytes
size_t sizeOnDisk = 0;
bool pruned = false;
QString warnings;
};
struct GetChainInfoTask : public CtlTask
{
GetChainInfoTask(Controller *ctl_) : CtlTask(ctl_, "Task.GetChainInfo") {}
~GetChainInfoTask() override { stop(); } // paranoia
void process() override;
ChainInfo info;
};
void GetChainInfoTask::process()
{
submitRequest("getblockchaininfo", {}, [this](const RPC::Message & resp){
const auto Err = [this, id=resp.id.toInt()](const QString &thing) {
const auto msg = QString("Failed to parse %1").arg(thing);
errorCode = id;
errorMessage = msg;
throw Exception(msg);
};
try {
bool ok = false;
const auto map = resp.result().toMap();
if (map.isEmpty()) Err("response; expected map");
info.blocks = map.value("blocks").toInt(&ok);
if (!ok || info.blocks < 0) Err("blocks"); // enforce positive blocks number
info.chain = map.value("chain").toString();
if (info.chain.isEmpty()) Err("chain");
info.headers = map.value("headers").toInt(); // error ignored here
info.bestBlockhash = Util::ParseHexFast(map.value("bestblockhash").toByteArray());
if (info.bestBlockhash.size() != bitcoin::uint256::width()) Err("bestblockhash");
info.difficulty = map.value("difficulty").toDouble(); // error ignored here
info.mtp = map.value("mediantime").toLongLong(); // error ok
info.verificationProgress = map.value("verificationprogress").toDouble(); // error ok
if (auto v = map.value("initialblockdownload"); v.canConvert<bool>())
info.initialBlockDownload = v.toBool();
else
Err("initialblockdownload");
info.chainWork = Util::ParseHexFast(map.value("chainwork").toByteArray()); // error ok
info.sizeOnDisk = map.value("size_on_disk").toULongLong(); // error ok
info.pruned = map.value("pruned").toBool(); // error ok
info.warnings = map.value("warnings").toString(); // error ok
if (Trace::isEnabled()) Trace() << info.toString();
emit success();
} catch (const Exception & e) {
Error() << "INTERNAL ERROR: " << e.what();
emit errored();
}
});
}
QString ChainInfo::toString() const
{
QString ret;
{
QTextStream ts(&ret, QIODevice::WriteOnly|QIODevice::Truncate);
ts << "(ChainInfo"
<< " chain: \"" << chain << "\""
<< " blocks: " << blocks
<< " headers: " << headers
<< " bestBlockHash: " << bestBlockhash.toHex()
<< " difficulty: " << QString::number(difficulty, 'f', 9)
<< " mtp: " << mtp
<< " verificationProgress: " << QString::number(verificationProgress, 'f', 6)
<< " ibd: " << initialBlockDownload
<< " chainWork: " << chainWork.toHex()
<< " sizeOnDisk: " << sizeOnDisk
<< " pruned: " << pruned
<< " warnings: \"" << warnings << "\""
<< ")";
}
return ret;
}
struct DownloadBlocksTask : public CtlTask
{
DownloadBlocksTask(unsigned from, unsigned to, unsigned stride, Controller *ctl);
~DownloadBlocksTask() override { stop(); } // paranoia
void process() override;
const unsigned from = 0, to = 0, stride = 1, expectedCt = 1;
unsigned next = 0;
std::atomic_uint goodCt = 0;
bool maybeDone = false;
std::vector<QByteArray> headers;
int q_ct = 0;
static constexpr int max_q = /*16;*/BitcoinDMgr::N_CLIENTS+1; // todo: tune this
static const int HEADER_SIZE;
std::atomic<size_t> nTx = 0, nIns = 0, nOuts = 0;
void do_get(unsigned height);
// basically computes expectedCt. Use expectedCt member to get the actual expected ct. this is used only by c'tor as a utility function
static size_t nToDL(unsigned from, unsigned to, unsigned stride) { return size_t( (((to-from)+1) + stride-1) / qMax(stride, 1U) ); }
// thread safe, this is a rough estimate and not 100% accurate
size_t nSoFar(double prog=-1) const { if (prog<0.) prog = lastProgress; return size_t(qRound(expectedCt * prog)); }
// given a position in the headers array, return the height
size_t index2Height(size_t index) { return size_t( from + (index * stride) ); }
// given a block height, return the index into our array
size_t height2Index(size_t h) { return size_t( ((h-from) + stride-1) / stride ); }
};
/*static*/ const int DownloadBlocksTask::HEADER_SIZE = int(BTC::GetBlockHeaderSize());
DownloadBlocksTask::DownloadBlocksTask(unsigned from, unsigned to, unsigned stride, Controller *ctl_)
: CtlTask(ctl_, QString("Task.DL %1 -> %2").arg(from).arg(to)), from(from), to(to), stride(stride), expectedCt(unsigned(nToDL(from, to, stride)))
{
FatalAssert( (to >= from) && (ctl_) && (stride > 0)) << "Invalid params to DonloadBlocksTask c'tor, FIXME!";
next = from;
headers.reserve(expectedCt);
}
void DownloadBlocksTask::process()
{
if (next > to) {
if (maybeDone) {
int bad = 0;
for (size_t index = 0, N = expectedCt; index < N; ++index) {
if (headers[index].length() != HEADER_SIZE) {
++bad;
errorCode = int(index2Height(index)); // height
break;
}
}
if (!bad) {
emit success();
} else {
errorMessage = QString("header length incorrect for height %1").arg(errorCode);
emit errored();
}
}
return;
}
do_get(next);
next += stride;
}
void DownloadBlocksTask::do_get(unsigned int bnum)
{
submitRequest("getblockhash", {bnum}, [this, bnum](const RPC::Message & resp){ // testing
QVariant var = resp.result();
const auto hash = Util::ParseHexFast(var.toByteArray());
if (hash.length() == bitcoin::uint256::width()) {
submitRequest("getblock"/*"getblockheader"*/, {var, false}, [this, bnum, hash](const RPC::Message & resp){ // testing
QVariant var = resp.result();
const auto rawblock = Util::ParseHexFast(var.toByteArray());
const auto header = rawblock.left(HEADER_SIZE); // we need a deep copy of this anyway so might as well take it now.
//const auto header = Util::ParseHexFast(var.toByteArray());
QByteArray chkHash;
if (bool sizeOk = header.length() == HEADER_SIZE; sizeOk && (chkHash = BTC::HashRev(header)) == hash) {
// testing block deser speed, etc
auto ppb = std::make_shared<PreProcessedBlock>(bnum, BTC::Deserialize<bitcoin::CBlock>(rawblock)); // this is here to test performance
// TESTING --
//if (bnum == 60000) Debug() << ppb->toDebugString();
if (Trace::isEnabled()) Trace() << "block " << bnum << " size: " << rawblock.size() << " nTx: " << ppb->txInfos.size();
nTx += ppb->txInfos.size();
nOuts += ppb->outputs.size();
nIns += ppb->inputs.size();
// /
const size_t index = height2Index(bnum);
++goodCt;
q_ct = qMax(q_ct-1, 0);
lastProgress = double(index) / double(expectedCt);
if (!(bnum % 1000) && bnum) {
emit progress(lastProgress);
}
if (Trace::isEnabled()) Trace() << resp.method << ": header for height: " << bnum << " len: " << header.length();
// save header and hash when both are correct
if (headers.size() < index+1)
headers.resize(index+1);
headers[index] = header;
if (goodCt >= expectedCt) {
// flag state to maybeDone to do checks when process() called again
maybeDone = true;
AGAIN();
return;
}
while (goodCt + unsigned(q_ct) < expectedCt && q_ct < max_q) {
// queue multiple at once
AGAIN();
++q_ct;
}
} else if (!sizeOk) {
Warning() << resp.method << ": at height " << bnum << " header not valid (decoded size: " << header.length() << ")";
errorCode = int(bnum);
errorMessage = QString("bad size for height %1").arg(bnum);
emit errored();
} else {
Warning() << resp.method << ": at height " << bnum << " header not valid (expected hash: " << hash.toHex() << ", got hash: " << chkHash.toHex() << ")";
errorCode = int(bnum);
errorMessage = QString("hash mismatch for height %1").arg(bnum);
emit errored();
}
});
} else {
Warning() << resp.method << ": at height " << bnum << " hash not valid (decoded size: " << hash.length() << ")";
errorCode = int(bnum);
errorMessage = QString("invalid hash for height %1").arg(bnum);
emit errored();
}
});
}
struct Controller::StateMachine
{
enum State {
Begin=0, GetBlocks, FinishedDL, End, Failure, IBD
};
State state = Begin;
int ht = -1;
std::map<unsigned, std::vector<QByteArray> > blockHeaders; // mapping of from_height -> headers
std::map<unsigned, unsigned> failures; // mapping of from -> failCt
// todo: tune this
const size_t DL_CONCURRENCY = qMax(Util::getNPhysicalProcessors()-1, 1U);//size_t(qMin(qMax(int(Util::getNPhysicalProcessors())-BitcoinDMgr::N_CLIENTS, BitcoinDMgr::N_CLIENTS), 32));
static constexpr unsigned maxErrCt = 3;
size_t nTx = 0, nIns = 0, nOuts = 0;
const char * stateStr() const {
static constexpr const char *stateStrings[] = { "Begin", "GetBlocks", "FinishedDL", "End", "Failure", "IBD",
"Unknown" /* this should always be last */ };
auto idx = qMin(size_t(state), std::size(stateStrings)-1);
return stateStrings[idx];
}
};
void Controller::rmTask(CtlTask *t)
{
if (auto it = tasks.find(t); it != tasks.end()) {
tasks.erase(it); // will delete object immediately
return;
}
Error() << __FUNCTION__ << ": Task '" << t->objectName() << "' not found! FIXME!";
}
bool Controller::isTaskDeleted(CtlTask *t) const { return tasks.count(t) == 0; }
void Controller::add_DLHeaderTask(unsigned int from, unsigned int to, size_t nTasks)
{
DownloadBlocksTask *t = newTask<DownloadBlocksTask>(false, unsigned(from), unsigned(to), unsigned(nTasks), this);
connect(t, &CtlTask::success, this, [t, this, nTasks]{
if (UNLIKELY(!sm || isTaskDeleted(t))) return; // task was stopped from underneath us, this is stale.. abort.
sm->nTx += t->nTx;
sm->nIns += t->nIns;
sm->nOuts += t->nOuts;
Debug() << "Got all headers from: " << t->objectName() << " headerCt: " << t->headers.size()
<< " nTx,nInp,nOutp: " << t->nTx << "," << t->nIns << "," << t->nOuts << " totals: "
<< sm->nTx << "," << sm->nIns << "," << sm->nOuts;
sm->blockHeaders[t->from].swap(t->headers); // constant time copy
if (sm->blockHeaders.size() == nTasks) {
sm->state = StateMachine::State::FinishedDL;
AGAIN();
}
});
connect(t, &CtlTask::errored, this, [t, this, nTasks]{
if (UNLIKELY(!sm || isTaskDeleted(t))) return; // task was stopped from underneath us, this is stale.. abort.
if (sm->state == StateMachine::State::Failure) return; // silently ignore if we are already in failure
// Handle failures with retries for the specific task -- failures are unlikely so it's ok to do it on this level
if (auto ct = ++sm->failures[t->from]; ct < sm->maxErrCt) {
Warning() << "Task errored: " << t->objectName() << ", error: " << t->errorMessage << ", retrying # " << ct << " ...";
add_DLHeaderTask(t->from, t->to, nTasks);
} else {
Error() << "Task errored: " << t->objectName() << ", error: " << t->errorMessage << ", failed after " << ct << " tries, giving up";
genericTaskErrored();
}
});
connect(t, &CtlTask::progress, this, [t, this](double prog){
if (UNLIKELY(!sm || isTaskDeleted(t))) return; // task was stopped from underneath us, this is stale.. abort.
Log() << "Downloaded height: " << t->index2Height(unsigned(t->expectedCt*prog)) << ", "
<< QString::number(prog*1e2, 'f', 1) << "%";
});
}
void Controller::genericTaskErrored()
{
if (sm && sm->state != StateMachine::State::Failure) {
sm->state = StateMachine::State::Failure;
AGAIN();
}
}
template <typename CtlTaskT, typename ...Args, typename /* enable_if... */>
CtlTaskT *Controller::newTask(bool connectErroredSignal, Args && ...args)
{
CtlTaskT *task = new CtlTaskT(std::forward<Args>(args)...);
tasks.emplace(task, task);
if (connectErroredSignal)
connect(task, &CtlTask::errored, this, &Controller::genericTaskErrored);
QTimer::singleShot(0, this, [task, this] {
if (!isTaskDeleted(task))
task->start();
});
return task;
}
void Controller::process(bool beSilentIfUpToDate)
{
bool enablePollTimer = false;
auto polltimeout = polltime_ms;
stopTimer(pollTimerName);
Debug() << "Process called...";
if (!sm) sm = std::make_unique<StateMachine>();
using State = StateMachine::State;
if (sm->state == State::Begin) {
auto task = newTask<GetChainInfoTask>(true, this);
connect(task, &CtlTask::success, this, [this, task, beSilentIfUpToDate]{
if (UNLIKELY(!sm || isTaskDeleted(task))) return; // task was stopped from underneath us, this is stale.. abort.
if (task->info.initialBlockDownload) {
sm->state = State::IBD;
AGAIN();
return;
}
if (const auto dbchain = storage->getChain(); dbchain.isEmpty() && !task->info.chain.isEmpty()) {
storage->setChain(task->info.chain);
} else if (dbchain != task->info.chain) {
Fatal() << "Bitcoind reports chain: \"" << task->info.chain << "\", which differs from our database: \""
<< dbchain << "\". You may have connected to the wrong bitcoind. To fix this issue either "
<< "connect to a different bitcoind or delete this program's datadir to resynch.";
return;
}
// TODO: detect reorgs here -- to be implemented later after we figure out data model more, etc.
const auto old = int(storage->headers().first.size())-1;
sm->ht = task->info.blocks;
if (old == sm->ht) {
if (!beSilentIfUpToDate) {
Log() << "Block height " << sm->ht << ", up-to-date";
emit upToDate();
}
sm->state = State::End;
} else if (old > sm->ht) {
Fatal() << "We have height " << old << ", but bitcoind reports height " << sm->ht << ". "
<< "Possible reasons: A massive reorg, your node is acting funny, you are on the wrong chain "
<< "(testnet vs mainnet), or there is a bug in this program. Cowardly giving up and exiting...";
return;
} else {
Log() << "Block height " << sm->ht << ", downloading new headers ...";
emit synchronizing();
sm->state = State::GetBlocks;
}
AGAIN();
});
} else if (sm->state == State::GetBlocks) {
const size_t base = storage->headers().first.size();
const size_t num = size_t(sm->ht+1) - base;
const size_t nTasks = qMin(num, sm->DL_CONCURRENCY);
for (size_t i = 0; i < nTasks; ++i) {
add_DLHeaderTask(unsigned(base + i), unsigned(sm->ht), nTasks);
}
} else if (sm->state == State::FinishedDL) {
size_t N = 0;
// figure out how many headers in total
for (const auto & pair : sm->blockHeaders)
N += pair.second.size();
Log() << "Processed " << N << " new " << Util::Pluralize("block", N) << " with " << sm->nTx << " " << Util::Pluralize("tx", sm->nTx)
<< " (" << sm->nIns << " " << Util::Pluralize("input", sm->nIns) << " & " << sm->nOuts << " " << Util::Pluralize("output", sm->nOuts) << ")"
<< ", verifying ...";
std::vector<QByteArray> newHeaders; // de-strided headers received
newHeaders.reserve(N);
{
// Verify header chain makes sense (by checking hashes, using the shared header verifier)
// We need to do this in a de-stride-ified fashion
QString verifErr;
auto [verif, lock] = storage->headerVerifier(); // lock needs to be held while we use this shared verifier
const auto verifUndo = verif; // keep a copy for undo purposes in case this fails
for (size_t ctr = 0; ctr < N; ++ctr) {
for (auto & [num, hdrs] : sm->blockHeaders) {
if (ctr >= hdrs.size())
continue;
const auto & hdr = hdrs[ctr];
if ( !verif(hdr, &verifErr) ) {
// XXX possible reorg point. FIXME TODO
// reorg here? TODO: deal with this better.
Error() << verifErr;
sm->state = State::Failure;
verif = verifUndo; // undo header verifier state
AGAIN();
return;
}
newHeaders.emplace_back(std::move(hdr)); // move c'tor.. should be very fast
}
}
// de-alloc the sm->blockHeaders now that it's fully de-strided
sm->blockHeaders.clear();
}
{
// updated shared headers from storage while holding lock...
auto [headers, lock] = storage->mutableHeaders(); // write lock held until scope end
if (const auto size = headers.size(); size + newHeaders.size() < headers.capacity())
headers.reserve(size + newHeaders.size()); // reserve space for new headers in 1 go to save on copying
headers.insert(headers.end(), newHeaders.begin(), newHeaders.end());
headers.shrink_to_fit(); // make sure no memory is wasted since we don't push_back but rather reserve ahead of time each time.
}
Log() << "Verified & copied " << newHeaders.size() << " new " << Util::Pluralize("header", newHeaders.size()) << " ok";
sm.reset(); // go back to "Begin" state to check if any new headers arrived in the meantime
AGAIN();
storage->save(Storage::SaveItem::Hdrs); // enqueue a header commit to db ...
} else if (sm->state == State::Failure) {
// We will try again later via the pollTimer
Error() << "Failed to download headers";
sm.reset();
enablePollTimer = true;
emit synchFailure();
} else if (sm->state == State::End) {
sm.reset(); // great success!
enablePollTimer = true;
} else if (sm->state == State::IBD) {
sm.reset();
enablePollTimer = true;
Warning() << "bitcoind is in initial block download, will try again in 1 minute";
polltimeout = 60 * 1000; // try again every minute
emit synchFailure();
}
if (enablePollTimer)
callOnTimerSoonNoRepeat(polltimeout, pollTimerName, [this]{if (!sm) process(true);});
}
// -- CtlTask
CtlTask::CtlTask(Controller *ctl, const QString &name)
: QObject(nullptr), ctl(ctl)
{
setObjectName(name);
_thread.setObjectName(name);
}
CtlTask::~CtlTask() {
Debug("%s (%s)", __FUNCTION__, objectName().isEmpty() ? "" : objectName().toUtf8().constData());
stop();
}
void CtlTask::on_started()
{
ThreadObjectMixin::on_started();
conns += connect(this, &CtlTask::success, ctl, [this]{stop();});
conns += connect(this, &CtlTask::errored, ctl, [this]{stop();});
conns += connect(this, &CtlTask::finished, ctl, [this]{ctl->rmTask(this);});
process();
emit started();
}
void CtlTask::on_finished()
{
ThreadObjectMixin::on_finished();
emit finished();
}
void CtlTask::on_error(const RPC::Message &resp)
{
Warning() << resp.method << ": error response: " << resp.toJsonString();
errorCode = resp.errorCode();
errorMessage = resp.errorMessage();
emit errored();
}
void CtlTask::on_failure(const RPC::Message::Id &id, const QString &msg)
{
Warning() << id.toString() << ": FAIL: " << msg;
errorCode = id.toInt();
errorMessage = msg;
emit errored();
}
quint64 CtlTask::submitRequest(const QString &method, const QVariantList &params, const BitcoinDMgr::ResultsF &resultsFunc)
{
quint64 id = IdMixin::newId();
ctl->bitcoindmgr->submitRequest(this, id, method, params,
resultsFunc,
[this](const RPC::Message &r){on_error(r);},
[this](const RPC::Message::Id &id, const QString &msg){on_failure(id, msg);});
return id;
}
// --- Controller stats
auto Controller::stats() const -> Stats
{
// "Servers"
auto st = QVariantMap{{ "Servers", srvmgr ? srvmgr->statsSafe() : QVariant() }};
// "BitcoinD's"
st["Bitcoin Daemon"] = bitcoindmgr->statsSafe();
// "Controller" (self)
QVariantMap m;
m["Headers"] = int(storage->headers().first.size());
if (sm) {
QVariantMap m2;
m2["State"] = sm->stateStr();
m2["Height"] = sm->ht;
if (const auto nDL = nHeadersDownloadedSoFar(); nDL > 0)
m2["Headers_Downloaded_This_Run"] = qlonglong(nDL);
if (const auto [ntx, nin, nout] = nTxInOutSoFar(); ntx > 0) {
m2["Txs_Seen_This_Run"] = QVariantMap({
{ "nTx" , qlonglong(ntx) },
{ "nIns", qlonglong(nin) },
{ "nOut", qlonglong(nout) }
});
}
m["StateMachine"] = m2;
} else
m["StateMachine"] = QVariant(); // null
QVariantMap timerMap;
for (const auto & timer: _timerMap) {
timerMap.insert(timer->objectName(), timer->interval());
}
m["activeTimers"] = timerMap;
QVariantList l;
{ // task list
const auto now = Util::getTime();
for (const auto & [task, ign] : tasks) {
Q_UNUSED(ign)
l.push_back(QVariantMap{{ task->objectName(), QVariantMap{
{"age", QString("%1 sec").arg(double((now-task->ts)/1e3))} ,
{"progress" , QString("%1%").arg(QString::number(task->lastProgress*100.0, 'f', 1)) }}
}});
}
Util::updateMap(m, QVariantMap{{"tasks" , l}});
}
st["Controller"] = m;
return st;
}
size_t Controller::nHeadersDownloadedSoFar() const
{
size_t ret = 0;
for (const auto & [task, ign] : tasks) {
Q_UNUSED(ign)
auto t = dynamic_cast<DownloadBlocksTask *>(task);
if (t)
ret += t->nSoFar();
}
return ret;
}
std::tuple<size_t, size_t, size_t> Controller::nTxInOutSoFar() const
{
size_t nTx = 0, nIn = 0, nOut = 0;
for (const auto & [task, ign] : tasks) {
Q_UNUSED(ign)
auto t = dynamic_cast<DownloadBlocksTask *>(task);
if (t) {
nTx += t->nTx;
nIn += t->nIns;
nOut += t->nOuts;
}
}
return {nTx, nIn, nOut};
}