mirror of
https://github.com/cculianu/Fulcrum.git
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0b6d6f0b70
Playing with lambdas. Detects when bitcoind goes down. Initial code -- can put hooks in the detection for eg. stopping block processing or starting it, etc.
74 lines
2.9 KiB
C++
74 lines
2.9 KiB
C++
#include "Controller.h"
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Controller::Controller(const std::shared_ptr<Options> &o)
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: Mgr(nullptr), options(o)
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{
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setObjectName("Controller");
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_thread.setObjectName(objectName());
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}
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Controller::~Controller() { Debug(__FUNCTION__); cleanup(); }
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auto Controller::stats() const -> Stats
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{
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auto st = srvmgr->statsSafe();
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Util::updateMap(st, bitcoindmgr->statsSafe());
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return st;
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}
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void Controller::startup()
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{
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bitcoindmgr = std::make_unique<BitcoinDMgr>(options->bitcoind.first, options->bitcoind.second, options->rpcuser, options->rpcpassword);
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{
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// some setup code that waits for bitcoind to be ready before kicking off our "process" method
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auto waitForBitcoinD = [this] {
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auto constexpr waitTimer = "wait4bitcoind", callProcessTimer = "callProcess";
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int constexpr msgPeriod = 10000, // 10sec
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smallDelay = 100;
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stopTimer(callProcessTimer);
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callOnTimerSoon(msgPeriod, waitTimer, []{ Log("Waiting for bitcoind..."); return true; }, false, Qt::TimerType::VeryCoarseTimer);
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// connection to kick off our 'process' method once the first auth is received
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auto connPtr = std::make_shared<QMetaObject::Connection>();
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*connPtr = connect(bitcoindmgr.get(), &BitcoinDMgr::gotFirstGoodConnection, this, [this, connPtr](quint64 id) mutable {
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if (connPtr) {
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stopTimer(waitTimer);
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if (!disconnect(*connPtr)) Fatal() << "Failed to disconnect 'authenticated' signal! FIXME!"; // this should never happen but if it does, app quits.
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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.
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Debug() << "Auth recvd from bicoind with id: " << id << ", proceeding with processing ...";
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callOnTimerSoonNoRepeat(smallDelay, callProcessTimer, [this]{process();}, true);
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}
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});
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};
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waitForBitcoinD();
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conns += connect(bitcoindmgr.get(), &BitcoinDMgr::allConnectionsLost, this, waitForBitcoinD);
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}
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bitcoindmgr->startup(); // may throw
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srvmgr = std::make_unique<SrvMgr>(options->interfaces, nullptr /* we are not parent so it won't follow us to our thread*/);
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srvmgr->startup(); // may throw Exception, waits for servers to bind
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start(); // start our thread
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}
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void Controller::cleanup()
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{
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stop();
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if (srvmgr) { Log("Stopping SrvMgr ... "); srvmgr->cleanup(); srvmgr.reset(); }
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if (bitcoindmgr) { Log("Stopping BitcoinDMgr ... "); bitcoindmgr->cleanup(); bitcoindmgr.reset(); }
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sm.reset();
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}
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struct Controller::StateMachine
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{
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// TODO: put state stuff here
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};
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void Controller::process()
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{
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Debug() << "Process called...";
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if (!sm) sm = std::make_unique<StateMachine>(); // create statemachine if doest not exist
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}
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