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-rw-r--r--src/init.cpp16
-rw-r--r--src/qt/test/rpcnestedtests.cpp22
-rw-r--r--src/scheduler.cpp66
-rw-r--r--src/scheduler.h33
-rw-r--r--src/test/test_bitcoin.cpp8
-rw-r--r--src/test/test_bitcoin.h2
-rw-r--r--src/validationinterface.cpp131
-rw-r--r--src/validationinterface.h69
8 files changed, 274 insertions, 73 deletions
diff --git a/src/init.cpp b/src/init.cpp
index 672ef77e80..12f29a4ca8 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -215,6 +215,19 @@ void Shutdown()
fFeeEstimatesInitialized = false;
}
+ // FlushStateToDisk generates a SetBestChain callback, which we should avoid missing
+ FlushStateToDisk();
+
+ // After there are no more peers/RPC left to give us new data which may generate
+ // CValidationInterface callbacks, flush them...
+ GetMainSignals().FlushBackgroundCallbacks();
+
+ // Any future callbacks will be dropped. This should absolutely be safe - if
+ // missing a callback results in an unrecoverable situation, unclean shutdown
+ // would too. The only reason to do the above flushes is to let the wallet catch
+ // up with our current chain to avoid any strange pruning edge cases and make
+ // next startup faster by avoiding rescan.
+
{
LOCK(cs_main);
if (pcoinsTip != NULL) {
@@ -251,6 +264,7 @@ void Shutdown()
}
#endif
UnregisterAllValidationInterfaces();
+ GetMainSignals().UnregisterBackgroundSignalScheduler();
#ifdef ENABLE_WALLET
for (CWalletRef pwallet : vpwallets) {
delete pwallet;
@@ -1203,6 +1217,8 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
CScheduler::Function serviceLoop = boost::bind(&CScheduler::serviceQueue, &scheduler);
threadGroup.create_thread(boost::bind(&TraceThread<CScheduler::Function>, "scheduler", serviceLoop));
+ GetMainSignals().RegisterBackgroundSignalScheduler(scheduler);
+
/* Start the RPC server already. It will be started in "warmup" mode
* and not really process calls already (but it will signify connections
* that the server is there and will be ready later). Warmup mode will
diff --git a/src/qt/test/rpcnestedtests.cpp b/src/qt/test/rpcnestedtests.cpp
index 26dec3c610..fbad9e544a 100644
--- a/src/qt/test/rpcnestedtests.cpp
+++ b/src/qt/test/rpcnestedtests.cpp
@@ -12,6 +12,7 @@
#include "rpc/server.h"
#include "rpcconsole.h"
#include "test/testutil.h"
+#include "test/test_bitcoin.h"
#include "univalue.h"
#include "util.h"
@@ -35,8 +36,6 @@ void RPCNestedTests::rpcNestedTests()
{
// do some test setup
// could be moved to a more generic place when we add more tests on QT level
- const CChainParams& chainparams = Params();
- RegisterAllCoreRPCCommands(tableRPC);
tableRPC.appendCommand("rpcNestedTest", &vRPCCommands[0]);
ClearDatadirCache();
std::string path = QDir::tempPath().toStdString() + "/" + strprintf("test_bitcoin_qt_%lu_%i", (unsigned long)GetTime(), (int)(GetRand(100000)));
@@ -44,15 +43,8 @@ void RPCNestedTests::rpcNestedTests()
dir.mkpath(".");
ForceSetArg("-datadir", path);
//mempool.setSanityCheck(1.0);
- pblocktree = new CBlockTreeDB(1 << 20, true);
- pcoinsdbview = new CCoinsViewDB(1 << 23, true);
- pcoinsTip = new CCoinsViewCache(pcoinsdbview);
- InitBlockIndex(chainparams);
- {
- CValidationState state;
- bool ok = ActivateBestChain(state, chainparams);
- QVERIFY(ok);
- }
+
+ TestingSetup test;
SetRPCWarmupFinished();
@@ -145,13 +137,5 @@ void RPCNestedTests::rpcNestedTests()
QVERIFY_EXCEPTION_THROWN(RPCConsole::RPCExecuteCommandLine(result, "rpcNestedTest(abc,,)"), std::runtime_error); //don't tollerate empty arguments when using ,
#endif
- UnloadBlockIndex();
- delete pcoinsTip;
- pcoinsTip = nullptr;
- delete pcoinsdbview;
- pcoinsdbview = nullptr;
- delete pblocktree;
- pblocktree = nullptr;
-
fs::remove_all(fs::path(path));
}
diff --git a/src/scheduler.cpp b/src/scheduler.cpp
index 923ba2c231..36a6d5110d 100644
--- a/src/scheduler.cpp
+++ b/src/scheduler.cpp
@@ -139,3 +139,69 @@ size_t CScheduler::getQueueInfo(boost::chrono::system_clock::time_point &first,
}
return result;
}
+
+bool CScheduler::AreThreadsServicingQueue() const {
+ return nThreadsServicingQueue;
+}
+
+
+void SingleThreadedSchedulerClient::MaybeScheduleProcessQueue() {
+ {
+ LOCK(m_cs_callbacks_pending);
+ // Try to avoid scheduling too many copies here, but if we
+ // accidentally have two ProcessQueue's scheduled at once its
+ // not a big deal.
+ if (m_are_callbacks_running) return;
+ if (m_callbacks_pending.empty()) return;
+ }
+ m_pscheduler->schedule(std::bind(&SingleThreadedSchedulerClient::ProcessQueue, this));
+}
+
+void SingleThreadedSchedulerClient::ProcessQueue() {
+ std::function<void (void)> callback;
+ {
+ LOCK(m_cs_callbacks_pending);
+ if (m_are_callbacks_running) return;
+ if (m_callbacks_pending.empty()) return;
+ m_are_callbacks_running = true;
+
+ callback = std::move(m_callbacks_pending.front());
+ m_callbacks_pending.pop_front();
+ }
+
+ // RAII the setting of fCallbacksRunning and calling MaybeScheduleProcessQueue
+ // to ensure both happen safely even if callback() throws.
+ struct RAIICallbacksRunning {
+ SingleThreadedSchedulerClient* instance;
+ RAIICallbacksRunning(SingleThreadedSchedulerClient* _instance) : instance(_instance) {}
+ ~RAIICallbacksRunning() {
+ {
+ LOCK(instance->m_cs_callbacks_pending);
+ instance->m_are_callbacks_running = false;
+ }
+ instance->MaybeScheduleProcessQueue();
+ }
+ } raiicallbacksrunning(this);
+
+ callback();
+}
+
+void SingleThreadedSchedulerClient::AddToProcessQueue(std::function<void (void)> func) {
+ assert(m_pscheduler);
+
+ {
+ LOCK(m_cs_callbacks_pending);
+ m_callbacks_pending.emplace_back(std::move(func));
+ }
+ MaybeScheduleProcessQueue();
+}
+
+void SingleThreadedSchedulerClient::EmptyQueue() {
+ assert(!m_pscheduler->AreThreadsServicingQueue());
+ bool should_continue = true;
+ while (should_continue) {
+ ProcessQueue();
+ LOCK(m_cs_callbacks_pending);
+ should_continue = !m_callbacks_pending.empty();
+ }
+}
diff --git a/src/scheduler.h b/src/scheduler.h
index 27412a15b4..0365d668b2 100644
--- a/src/scheduler.h
+++ b/src/scheduler.h
@@ -14,6 +14,8 @@
#include <boost/thread.hpp>
#include <map>
+#include "sync.h"
+
//
// Simple class for background tasks that should be run
// periodically or once "after a while"
@@ -41,7 +43,7 @@ public:
typedef std::function<void(void)> Function;
// Call func at/after time t
- void schedule(Function f, boost::chrono::system_clock::time_point t);
+ void schedule(Function f, boost::chrono::system_clock::time_point t=boost::chrono::system_clock::now());
// Convenience method: call f once deltaSeconds from now
void scheduleFromNow(Function f, int64_t deltaMilliSeconds);
@@ -69,6 +71,9 @@ public:
size_t getQueueInfo(boost::chrono::system_clock::time_point &first,
boost::chrono::system_clock::time_point &last) const;
+ // Returns true if there are threads actively running in serviceQueue()
+ bool AreThreadsServicingQueue() const;
+
private:
std::multimap<boost::chrono::system_clock::time_point, Function> taskQueue;
boost::condition_variable newTaskScheduled;
@@ -79,4 +84,30 @@ private:
bool shouldStop() { return stopRequested || (stopWhenEmpty && taskQueue.empty()); }
};
+/**
+ * Class used by CScheduler clients which may schedule multiple jobs
+ * which are required to be run serially. Does not require such jobs
+ * to be executed on the same thread, but no two jobs will be executed
+ * at the same time.
+ */
+class SingleThreadedSchedulerClient {
+private:
+ CScheduler *m_pscheduler;
+
+ CCriticalSection m_cs_callbacks_pending;
+ std::list<std::function<void (void)>> m_callbacks_pending;
+ bool m_are_callbacks_running = false;
+
+ void MaybeScheduleProcessQueue();
+ void ProcessQueue();
+
+public:
+ SingleThreadedSchedulerClient(CScheduler *pschedulerIn) : m_pscheduler(pschedulerIn) {}
+ void AddToProcessQueue(std::function<void (void)> func);
+
+ // Processes all remaining queue members on the calling thread, blocking until queue is empty
+ // Must be called after the CScheduler has no remaining processing threads!
+ void EmptyQueue();
+};
+
#endif
diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp
index 579e96524c..3ba81ed17b 100644
--- a/src/test/test_bitcoin.cpp
+++ b/src/test/test_bitcoin.cpp
@@ -62,6 +62,12 @@ TestingSetup::TestingSetup(const std::string& chainName) : BasicTestingSetup(cha
pathTemp = GetTempPath() / strprintf("test_bitcoin_%lu_%i", (unsigned long)GetTime(), (int)(InsecureRandRange(100000)));
fs::create_directories(pathTemp);
ForceSetArg("-datadir", pathTemp.string());
+
+ // Note that because we don't bother running a scheduler thread here,
+ // callbacks via CValidationInterface are unreliable, but that's OK,
+ // our unit tests aren't testing multiple parts of the code at once.
+ GetMainSignals().RegisterBackgroundSignalScheduler(scheduler);
+
mempool.setSanityCheck(1.0);
pblocktree = new CBlockTreeDB(1 << 20, true);
pcoinsdbview = new CCoinsViewDB(1 << 23, true);
@@ -88,6 +94,8 @@ TestingSetup::~TestingSetup()
UnregisterNodeSignals(GetNodeSignals());
threadGroup.interrupt_all();
threadGroup.join_all();
+ GetMainSignals().FlushBackgroundCallbacks();
+ GetMainSignals().UnregisterBackgroundSignalScheduler();
UnloadBlockIndex();
delete pcoinsTip;
delete pcoinsdbview;
diff --git a/src/test/test_bitcoin.h b/src/test/test_bitcoin.h
index c9e4a3427f..dd3b13c8c8 100644
--- a/src/test/test_bitcoin.h
+++ b/src/test/test_bitcoin.h
@@ -10,6 +10,7 @@
#include "key.h"
#include "pubkey.h"
#include "random.h"
+#include "scheduler.h"
#include "txdb.h"
#include "txmempool.h"
@@ -53,6 +54,7 @@ struct TestingSetup: public BasicTestingSetup {
fs::path pathTemp;
boost::thread_group threadGroup;
CConnman* connman;
+ CScheduler scheduler;
TestingSetup(const std::string& chainName = CBaseChainParams::MAIN);
~TestingSetup();
diff --git a/src/validationinterface.cpp b/src/validationinterface.cpp
index be2f20b863..bf20d606f8 100644
--- a/src/validationinterface.cpp
+++ b/src/validationinterface.cpp
@@ -4,46 +4,123 @@
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "validationinterface.h"
+#include "init.h"
+#include "scheduler.h"
+#include "sync.h"
+#include "util.h"
+
+#include <list>
+#include <atomic>
+
+#include <boost/signals2/signal.hpp>
+
+struct MainSignalsInstance {
+ boost::signals2::signal<void (const CBlockIndex *, const CBlockIndex *, bool fInitialDownload)> UpdatedBlockTip;
+ boost::signals2::signal<void (const CTransactionRef &)> TransactionAddedToMempool;
+ boost::signals2::signal<void (const std::shared_ptr<const CBlock> &, const CBlockIndex *pindex, const std::vector<CTransactionRef>&)> BlockConnected;
+ boost::signals2::signal<void (const std::shared_ptr<const CBlock> &)> BlockDisconnected;
+ boost::signals2::signal<void (const CBlockLocator &)> SetBestChain;
+ boost::signals2::signal<void (const uint256 &)> Inventory;
+ boost::signals2::signal<void (int64_t nBestBlockTime, CConnman* connman)> Broadcast;
+ boost::signals2::signal<void (const CBlock&, const CValidationState&)> BlockChecked;
+ boost::signals2::signal<void (const CBlockIndex *, const std::shared_ptr<const CBlock>&)> NewPoWValidBlock;
+
+ // We are not allowed to assume the scheduler only runs in one thread,
+ // but must ensure all callbacks happen in-order, so we end up creating
+ // our own queue here :(
+ SingleThreadedSchedulerClient m_schedulerClient;
+
+ MainSignalsInstance(CScheduler *pscheduler) : m_schedulerClient(pscheduler) {}
+};
static CMainSignals g_signals;
+void CMainSignals::RegisterBackgroundSignalScheduler(CScheduler& scheduler) {
+ assert(!m_internals);
+ m_internals.reset(new MainSignalsInstance(&scheduler));
+}
+
+void CMainSignals::UnregisterBackgroundSignalScheduler() {
+ m_internals.reset(nullptr);
+}
+
+void CMainSignals::FlushBackgroundCallbacks() {
+ m_internals->m_schedulerClient.EmptyQueue();
+}
+
CMainSignals& GetMainSignals()
{
return g_signals;
}
void RegisterValidationInterface(CValidationInterface* pwalletIn) {
- g_signals.UpdatedBlockTip.connect(boost::bind(&CValidationInterface::UpdatedBlockTip, pwalletIn, _1, _2, _3));
- g_signals.TransactionAddedToMempool.connect(boost::bind(&CValidationInterface::TransactionAddedToMempool, pwalletIn, _1));
- g_signals.BlockConnected.connect(boost::bind(&CValidationInterface::BlockConnected, pwalletIn, _1, _2, _3));
- g_signals.BlockDisconnected.connect(boost::bind(&CValidationInterface::BlockDisconnected, pwalletIn, _1));
- g_signals.SetBestChain.connect(boost::bind(&CValidationInterface::SetBestChain, pwalletIn, _1));
- g_signals.Inventory.connect(boost::bind(&CValidationInterface::Inventory, pwalletIn, _1));
- g_signals.Broadcast.connect(boost::bind(&CValidationInterface::ResendWalletTransactions, pwalletIn, _1, _2));
- g_signals.BlockChecked.connect(boost::bind(&CValidationInterface::BlockChecked, pwalletIn, _1, _2));
- g_signals.NewPoWValidBlock.connect(boost::bind(&CValidationInterface::NewPoWValidBlock, pwalletIn, _1, _2));
+ g_signals.m_internals->UpdatedBlockTip.connect(boost::bind(&CValidationInterface::UpdatedBlockTip, pwalletIn, _1, _2, _3));
+ g_signals.m_internals->TransactionAddedToMempool.connect(boost::bind(&CValidationInterface::TransactionAddedToMempool, pwalletIn, _1));
+ g_signals.m_internals->BlockConnected.connect(boost::bind(&CValidationInterface::BlockConnected, pwalletIn, _1, _2, _3));
+ g_signals.m_internals->BlockDisconnected.connect(boost::bind(&CValidationInterface::BlockDisconnected, pwalletIn, _1));
+ g_signals.m_internals->SetBestChain.connect(boost::bind(&CValidationInterface::SetBestChain, pwalletIn, _1));
+ g_signals.m_internals->Inventory.connect(boost::bind(&CValidationInterface::Inventory, pwalletIn, _1));
+ g_signals.m_internals->Broadcast.connect(boost::bind(&CValidationInterface::ResendWalletTransactions, pwalletIn, _1, _2));
+ g_signals.m_internals->BlockChecked.connect(boost::bind(&CValidationInterface::BlockChecked, pwalletIn, _1, _2));
+ g_signals.m_internals->NewPoWValidBlock.connect(boost::bind(&CValidationInterface::NewPoWValidBlock, pwalletIn, _1, _2));
}
void UnregisterValidationInterface(CValidationInterface* pwalletIn) {
- g_signals.BlockChecked.disconnect(boost::bind(&CValidationInterface::BlockChecked, pwalletIn, _1, _2));
- g_signals.Broadcast.disconnect(boost::bind(&CValidationInterface::ResendWalletTransactions, pwalletIn, _1, _2));
- g_signals.Inventory.disconnect(boost::bind(&CValidationInterface::Inventory, pwalletIn, _1));
- g_signals.SetBestChain.disconnect(boost::bind(&CValidationInterface::SetBestChain, pwalletIn, _1));
- g_signals.TransactionAddedToMempool.disconnect(boost::bind(&CValidationInterface::TransactionAddedToMempool, pwalletIn, _1));
- g_signals.BlockConnected.disconnect(boost::bind(&CValidationInterface::BlockConnected, pwalletIn, _1, _2, _3));
- g_signals.BlockDisconnected.disconnect(boost::bind(&CValidationInterface::BlockDisconnected, pwalletIn, _1));
- g_signals.UpdatedBlockTip.disconnect(boost::bind(&CValidationInterface::UpdatedBlockTip, pwalletIn, _1, _2, _3));
- g_signals.NewPoWValidBlock.disconnect(boost::bind(&CValidationInterface::NewPoWValidBlock, pwalletIn, _1, _2));
+ g_signals.m_internals->BlockChecked.disconnect(boost::bind(&CValidationInterface::BlockChecked, pwalletIn, _1, _2));
+ g_signals.m_internals->Broadcast.disconnect(boost::bind(&CValidationInterface::ResendWalletTransactions, pwalletIn, _1, _2));
+ g_signals.m_internals->Inventory.disconnect(boost::bind(&CValidationInterface::Inventory, pwalletIn, _1));
+ g_signals.m_internals->SetBestChain.disconnect(boost::bind(&CValidationInterface::SetBestChain, pwalletIn, _1));
+ g_signals.m_internals->TransactionAddedToMempool.disconnect(boost::bind(&CValidationInterface::TransactionAddedToMempool, pwalletIn, _1));
+ g_signals.m_internals->BlockConnected.disconnect(boost::bind(&CValidationInterface::BlockConnected, pwalletIn, _1, _2, _3));
+ g_signals.m_internals->BlockDisconnected.disconnect(boost::bind(&CValidationInterface::BlockDisconnected, pwalletIn, _1));
+ g_signals.m_internals->UpdatedBlockTip.disconnect(boost::bind(&CValidationInterface::UpdatedBlockTip, pwalletIn, _1, _2, _3));
+ g_signals.m_internals->NewPoWValidBlock.disconnect(boost::bind(&CValidationInterface::NewPoWValidBlock, pwalletIn, _1, _2));
}
void UnregisterAllValidationInterfaces() {
- g_signals.BlockChecked.disconnect_all_slots();
- g_signals.Broadcast.disconnect_all_slots();
- g_signals.Inventory.disconnect_all_slots();
- g_signals.SetBestChain.disconnect_all_slots();
- g_signals.TransactionAddedToMempool.disconnect_all_slots();
- g_signals.BlockConnected.disconnect_all_slots();
- g_signals.BlockDisconnected.disconnect_all_slots();
- g_signals.UpdatedBlockTip.disconnect_all_slots();
- g_signals.NewPoWValidBlock.disconnect_all_slots();
+ g_signals.m_internals->BlockChecked.disconnect_all_slots();
+ g_signals.m_internals->Broadcast.disconnect_all_slots();
+ g_signals.m_internals->Inventory.disconnect_all_slots();
+ g_signals.m_internals->SetBestChain.disconnect_all_slots();
+ g_signals.m_internals->TransactionAddedToMempool.disconnect_all_slots();
+ g_signals.m_internals->BlockConnected.disconnect_all_slots();
+ g_signals.m_internals->BlockDisconnected.disconnect_all_slots();
+ g_signals.m_internals->UpdatedBlockTip.disconnect_all_slots();
+ g_signals.m_internals->NewPoWValidBlock.disconnect_all_slots();
+}
+
+void CMainSignals::UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) {
+ m_internals->UpdatedBlockTip(pindexNew, pindexFork, fInitialDownload);
+}
+
+void CMainSignals::TransactionAddedToMempool(const CTransactionRef &ptx) {
+ m_internals->TransactionAddedToMempool(ptx);
+}
+
+void CMainSignals::BlockConnected(const std::shared_ptr<const CBlock> &pblock, const CBlockIndex *pindex, const std::vector<CTransactionRef>& vtxConflicted) {
+ m_internals->BlockConnected(pblock, pindex, vtxConflicted);
+}
+
+void CMainSignals::BlockDisconnected(const std::shared_ptr<const CBlock> &pblock) {
+ m_internals->BlockDisconnected(pblock);
+}
+
+void CMainSignals::SetBestChain(const CBlockLocator &locator) {
+ m_internals->SetBestChain(locator);
+}
+
+void CMainSignals::Inventory(const uint256 &hash) {
+ m_internals->Inventory(hash);
+}
+
+void CMainSignals::Broadcast(int64_t nBestBlockTime, CConnman* connman) {
+ m_internals->Broadcast(nBestBlockTime, connman);
+}
+
+void CMainSignals::BlockChecked(const CBlock& block, const CValidationState& state) {
+ m_internals->BlockChecked(block, state);
+}
+
+void CMainSignals::NewPoWValidBlock(const CBlockIndex *pindex, const std::shared_ptr<const CBlock> &block) {
+ m_internals->NewPoWValidBlock(pindex, block);
}
diff --git a/src/validationinterface.h b/src/validationinterface.h
index 17545018df..568da66df2 100644
--- a/src/validationinterface.h
+++ b/src/validationinterface.h
@@ -6,7 +6,6 @@
#ifndef BITCOIN_VALIDATIONINTERFACE_H
#define BITCOIN_VALIDATIONINTERFACE_H
-#include <boost/signals2/signal.hpp>
#include <memory>
#include "primitives/transaction.h" // CTransaction(Ref)
@@ -20,6 +19,7 @@ class CReserveScript;
class CValidationInterface;
class CValidationState;
class uint256;
+class CScheduler;
// These functions dispatch to one or all registered wallets
@@ -32,49 +32,66 @@ void UnregisterAllValidationInterfaces();
class CValidationInterface {
protected:
- virtual void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) {}
- virtual void TransactionAddedToMempool(const CTransactionRef &ptxn) {}
- virtual void BlockConnected(const std::shared_ptr<const CBlock> &block, const CBlockIndex *pindex, const std::vector<CTransactionRef> &txnConflicted) {}
- virtual void BlockDisconnected(const std::shared_ptr<const CBlock> &block) {}
- virtual void SetBestChain(const CBlockLocator &locator) {}
- virtual void Inventory(const uint256 &hash) {}
- virtual void ResendWalletTransactions(int64_t nBestBlockTime, CConnman* connman) {}
- virtual void BlockChecked(const CBlock&, const CValidationState&) {}
- virtual void NewPoWValidBlock(const CBlockIndex *pindex, const std::shared_ptr<const CBlock>& block) {};
- friend void ::RegisterValidationInterface(CValidationInterface*);
- friend void ::UnregisterValidationInterface(CValidationInterface*);
- friend void ::UnregisterAllValidationInterfaces();
-};
-
-struct CMainSignals {
/** Notifies listeners of updated block chain tip */
- boost::signals2::signal<void (const CBlockIndex *, const CBlockIndex *, bool fInitialDownload)> UpdatedBlockTip;
+ virtual void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) {}
/** Notifies listeners of a transaction having been added to mempool. */
- boost::signals2::signal<void (const CTransactionRef &)> TransactionAddedToMempool;
+ virtual void TransactionAddedToMempool(const CTransactionRef &ptxn) {}
/**
* Notifies listeners of a block being connected.
* Provides a vector of transactions evicted from the mempool as a result.
*/
- boost::signals2::signal<void (const std::shared_ptr<const CBlock> &, const CBlockIndex *pindex, const std::vector<CTransactionRef> &)> BlockConnected;
+ virtual void BlockConnected(const std::shared_ptr<const CBlock> &block, const CBlockIndex *pindex, const std::vector<CTransactionRef> &txnConflicted) {}
/** Notifies listeners of a block being disconnected */
- boost::signals2::signal<void (const std::shared_ptr<const CBlock> &)> BlockDisconnected;
- /** Notifies listeners of a new active block chain. */
- boost::signals2::signal<void (const CBlockLocator &)> SetBestChain;
+ virtual void BlockDisconnected(const std::shared_ptr<const CBlock> &block) {}
+ /** Notifies listeners of the new active block chain on-disk. */
+ virtual void SetBestChain(const CBlockLocator &locator) {}
/** Notifies listeners about an inventory item being seen on the network. */
- boost::signals2::signal<void (const uint256 &)> Inventory;
+ virtual void Inventory(const uint256 &hash) {}
/** Tells listeners to broadcast their data. */
- boost::signals2::signal<void (int64_t nBestBlockTime, CConnman* connman)> Broadcast;
+ virtual void ResendWalletTransactions(int64_t nBestBlockTime, CConnman* connman) {}
/**
* Notifies listeners of a block validation result.
* If the provided CValidationState IsValid, the provided block
* is guaranteed to be the current best block at the time the
* callback was generated (not necessarily now)
*/
- boost::signals2::signal<void (const CBlock&, const CValidationState&)> BlockChecked;
+ virtual void BlockChecked(const CBlock&, const CValidationState&) {}
/**
* Notifies listeners that a block which builds directly on our current tip
* has been received and connected to the headers tree, though not validated yet */
- boost::signals2::signal<void (const CBlockIndex *, const std::shared_ptr<const CBlock>&)> NewPoWValidBlock;
+ virtual void NewPoWValidBlock(const CBlockIndex *pindex, const std::shared_ptr<const CBlock>& block) {};
+ friend void ::RegisterValidationInterface(CValidationInterface*);
+ friend void ::UnregisterValidationInterface(CValidationInterface*);
+ friend void ::UnregisterAllValidationInterfaces();
+};
+
+struct MainSignalsInstance;
+class CMainSignals {
+private:
+ std::unique_ptr<MainSignalsInstance> m_internals;
+
+ friend void ::RegisterValidationInterface(CValidationInterface*);
+ friend void ::UnregisterValidationInterface(CValidationInterface*);
+ friend void ::UnregisterAllValidationInterfaces();
+
+public:
+ /** Register a CScheduler to give callbacks which should run in the background (may only be called once) */
+ void RegisterBackgroundSignalScheduler(CScheduler& scheduler);
+ /** Unregister a CScheduler to give callbacks which should run in the background - these callbacks will now be dropped! */
+ void UnregisterBackgroundSignalScheduler();
+ /** Call any remaining callbacks on the calling thread */
+ void FlushBackgroundCallbacks();
+
+ void UpdatedBlockTip(const CBlockIndex *, const CBlockIndex *, bool fInitialDownload);
+ void TransactionAddedToMempool(const CTransactionRef &);
+ void BlockConnected(const std::shared_ptr<const CBlock> &, const CBlockIndex *pindex, const std::vector<CTransactionRef> &);
+ void BlockDisconnected(const std::shared_ptr<const CBlock> &);
+ void UpdatedTransaction(const uint256 &);
+ void SetBestChain(const CBlockLocator &);
+ void Inventory(const uint256 &);
+ void Broadcast(int64_t nBestBlockTime, CConnman* connman);
+ void BlockChecked(const CBlock&, const CValidationState&);
+ void NewPoWValidBlock(const CBlockIndex *, const std::shared_ptr<const CBlock>&);
};
CMainSignals& GetMainSignals();
generated by cgit v1.2.3 (git 2.26.2) at 2024-07-21 03:50:33 +0000