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Solve chainActive-related locking issues

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- In wallet and GUI code LOCK cs_main as well as cs_wallet when
  necessary
- In main.cpp SendMessages move the TRY_LOCK(cs_main) up, to encompass the call
  to IsInitialBlockDownload.
- Make ActivateBestChain, AddToBlockIndex, IsInitialBlockDownload,
  InitBlockIndex acquire the cs_main lock

Fixes #3997
This commit is contained in:
Wladimir J. van der Laan
2014-04-15 17:38:25 +02:00
parent e07c943ce8
commit 55a1db4fa2
7 changed files with 269 additions and 272 deletions
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41
src/qt/transactiontablemodel.cpp
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@@ -78,7 +78,7 @@ public:
qDebug() << "TransactionTablePriv::refreshWallet";
cachedWallet.clear();
{
LOCK(wallet->cs_wallet);
LOCK2(cs_main, wallet->cs_wallet);
for(std::map<uint256, CWalletTx>::iterator it = wallet->mapWallet.begin(); it != wallet->mapWallet.end(); ++it)
{
if(TransactionRecord::showTransaction(it->second))
@@ -96,7 +96,7 @@ public:
{
qDebug() << "TransactionTablePriv::updateWallet : " + QString::fromStdString(hash.ToString()) + " " + QString::number(status);
{
LOCK(wallet->cs_wallet);
LOCK2(cs_main, wallet->cs_wallet);
// Find transaction in wallet
std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(hash);
@@ -190,16 +190,14 @@ public:
// If a status update is needed (blocks came in since last check),
// update the status of this transaction from the wallet. Otherwise,
// simply re-use the cached status.
LOCK2(cs_main, wallet->cs_wallet);
if(rec->statusUpdateNeeded())
{
{
LOCK(wallet->cs_wallet);
std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(rec->hash);
std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(rec->hash);
if(mi != wallet->mapWallet.end())
{
rec->updateStatus(mi->second);
}
if(mi != wallet->mapWallet.end())
{
rec->updateStatus(mi->second);
}
}
return rec;
@@ -213,7 +211,7 @@ public:
QString describe(TransactionRecord *rec, int unit)
{
{
LOCK(wallet->cs_wallet);
LOCK2(cs_main, wallet->cs_wallet);
std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(rec->hash);
if(mi != wallet->mapWallet.end())
{
@@ -228,17 +226,12 @@ TransactionTableModel::TransactionTableModel(CWallet* wallet, WalletModel *paren
QAbstractTableModel(parent),
wallet(wallet),
walletModel(parent),
priv(new TransactionTablePriv(wallet, this)),
cachedNumBlocks(0)
priv(new TransactionTablePriv(wallet, this))
{
columns << QString() << tr("Date") << tr("Type") << tr("Address") << tr("Amount");
priv->refreshWallet();
QTimer *timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(updateConfirmations()));
timer->start(MODEL_UPDATE_DELAY);
connect(walletModel->getOptionsModel(), SIGNAL(displayUnitChanged(int)), this, SLOT(updateDisplayUnit()));
}
@@ -257,16 +250,12 @@ void TransactionTableModel::updateTransaction(const QString &hash, int status)
void TransactionTableModel::updateConfirmations()
{
if(chainActive.Height() != cachedNumBlocks)
{
cachedNumBlocks = chainActive.Height();
// Blocks came in since last poll.
// Invalidate status (number of confirmations) and (possibly) description
// for all rows. Qt is smart enough to only actually request the data for the
// visible rows.
emit dataChanged(index(0, Status), index(priv->size()-1, Status));
emit dataChanged(index(0, ToAddress), index(priv->size()-1, ToAddress));
}
// Blocks came in since last poll.
// Invalidate status (number of confirmations) and (possibly) description
// for all rows. Qt is smart enough to only actually request the data for the
// visible rows.
emit dataChanged(index(0, Status), index(priv->size()-1, Status));
emit dataChanged(index(0, ToAddress), index(priv->size()-1, ToAddress));
}
int TransactionTableModel::rowCount(const QModelIndex &parent) const