Bitcoin ABC
0.22.13
P2P Digital Currency
src
node
coin.cpp
Go to the documentation of this file.
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// Copyright (c) 2019 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <
node/coin.h
>
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#include <
node/context.h
>
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#include <
txmempool.h
>
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#include <validation.h>
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void
FindCoins
(
const
NodeContext
&node, std::map<COutPoint, Coin> &coins) {
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assert(node.
mempool
);
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LOCK2
(
cs_main
, node.
mempool
->
cs
);
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CCoinsViewCache
&chain_view =
::ChainstateActive
().
CoinsTip
();
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CCoinsViewMemPool
mempool_view(&chain_view, *node.
mempool
);
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for
(
auto
&coin : coins) {
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if
(!mempool_view.
GetCoin
(coin.first, coin.second)) {
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// Either the coin is not in the CCoinsViewCache or is spent. Clear
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// it.
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coin.second.Clear();
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}
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}
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}
CCoinsViewMemPool::GetCoin
bool GetCoin(const COutPoint &outpoint, Coin &coin) const override
Retrieve the Coin (unspent transaction output) for a given outpoint.
Definition:
txmempool.cpp:1042
context.h
ChainstateActive
CChainState & ChainstateActive()
Definition:
validation.cpp:72
LOCK2
#define LOCK2(cs1, cs2)
Definition:
sync.h:233
txmempool.h
NodeContext
NodeContext struct containing references to chain state and connection state.
Definition:
context.h:35
cs_main
RecursiveMutex cs_main
Global state.
Definition:
validation.cpp:95
FindCoins
void FindCoins(const NodeContext &node, std::map< COutPoint, Coin > &coins)
Look up unspent output information.
Definition:
coin.cpp:11
CChainState::CoinsTip
CCoinsViewCache & CoinsTip() EXCLUSIVE_LOCKS_REQUIRED(cs_main)
Definition:
validation.h:775
coin.h
CCoinsViewCache
CCoinsView that adds a memory cache for transactions to another CCoinsView.
Definition:
coins.h:231
CCoinsViewMemPool
CCoinsView that brings transactions from a mempool into view.
Definition:
txmempool.h:923
CTxMemPool::cs
RecursiveMutex cs
This mutex needs to be locked when accessing mapTx or other members that are guarded by it...
Definition:
txmempool.h:545
NodeContext::mempool
CTxMemPool * mempool
Definition:
context.h:38
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