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qt: Fix regression in TransactionTableModel

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Since #17993 a crash is possible on exit.

Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
This commit is contained in:
Hennadii Stepanov 2020-06-22 23:35:48 +03:00
parent dbd7a91fdf
commit d906aaa117
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4 changed files with 12 additions and 3 deletions
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7
src/qt/walletmodel.cpp
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@ -87,7 +87,7 @@ void WalletModel::pollBalanceChanged()
{
// Avoid recomputing wallet balances unless a TransactionChanged or
// BlockTip notification was received.
if (!fForceCheckBalanceChanged && m_cached_last_update_tip == m_client_model->getBestBlockHash()) return;
if (!fForceCheckBalanceChanged && m_cached_last_update_tip == getLastBlockProcessed()) return;
// Try to get balances and return early if locks can't be acquired. This
// avoids the GUI from getting stuck on periodical polls if the core is
@ -588,3 +588,8 @@ void WalletModel::refresh(bool pk_hash_only)
{
addressTableModel = new AddressTableModel(this, pk_hash_only);
}
uint256 WalletModel::getLastBlockProcessed() const
{
return m_client_model ? m_client_model->getBestBlockHash() : uint256{};
}