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wallet: Avoid use of Chain::Lock in tryGetTxStatus and tryGetBalances

Browse source 
This is a step toward removing the Chain::Lock class and reducing cs_main
locking.

It also helps ensure the GUI display stays up to date in the case where the
node chain height runs ahead of wallet last block processed height.
This commit is contained in:
Russell Yanofsky 2020-01-16 15:56:58 -05:00
parent bf30cd4922
commit f6da44ccce
2 changed files with 13 additions and 10 deletions
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17
src/interfaces/wallet.cpp
View file

@ -14,6 +14,7 @@
#include <sync.h>
#include <ui_interface.h>
#include <uint256.h>
#include <util/check.h>
#include <util/system.h>
#include <wallet/feebumper.h>
#include <wallet/fees.h>
@ -62,7 +63,7 @@ WalletTx MakeWalletTx(CWallet& wallet, const CWalletTx& wtx)
WalletTxStatus MakeWalletTxStatus(interfaces::Chain::Lock& locked_chain, const CWalletTx& wtx)
{
WalletTxStatus result;
result.block_height = locked_chain.getBlockHeight(wtx.m_confirm.hashBlock).get_value_or(std::numeric_limits<int>::max());
result.block_height = wtx.m_confirm.block_height > 0 ? wtx.m_confirm.block_height : std::numeric_limits<int>::max();
result.blocks_to_maturity = wtx.GetBlocksToMaturity();
result.depth_in_main_chain = wtx.GetDepthInMainChain();
result.time_received = wtx.nTimeReceived;
@ -317,13 +318,9 @@ public:
if (mi == m_wallet->mapWallet.end()) {
return false;
}
if (Optional<int> height = locked_chain->getHeight()) {
num_blocks = *height;
block_time = locked_chain->getBlockTime(*height);
} else {
num_blocks = -1;
block_time = -1;
}
num_blocks = m_wallet->GetLastBlockHeight();
block_time = -1;
CHECK_NONFATAL(m_wallet->chain().findBlock(m_wallet->GetLastBlockHash(), FoundBlock().time(block_time)));
tx_status = MakeWalletTxStatus(*locked_chain, mi->second);
return true;
}
@ -372,12 +369,12 @@ public:
{
auto locked_chain = m_wallet->chain().lock(true /* try_lock */);
if (!locked_chain) return false;
num_blocks = locked_chain->getHeight().get_value_or(-1);
if (!force && num_blocks == cached_num_blocks) return false;
TRY_LOCK(m_wallet->cs_wallet, locked_wallet);
if (!locked_wallet) {
return false;
}
num_blocks = m_wallet->GetLastBlockHeight();
if (!force && num_blocks == cached_num_blocks) return false;
balances = getBalances();
return true;
}

6
src/wallet/wallet.h
View file

@ -1200,6 +1200,12 @@ public:
assert(m_last_block_processed_height >= 0);
return m_last_block_processed_height;
};
uint256 GetLastBlockHash() const EXCLUSIVE_LOCKS_REQUIRED(cs_wallet)
{
AssertLockHeld(cs_wallet);
assert(m_last_block_processed_height >= 0);
return m_last_block_processed;
}
/** Set last block processed height, currently only use in unit test */
void SetLastBlockProcessed(int block_height, uint256 block_hash) EXCLUSIVE_LOCKS_REQUIRED(cs_wallet)
{