Bitcoin ABC  0.26.3
P2P Digital Currency
coin.cpp
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1 // Copyright (c) 2019 The Bitcoin Core developers
2 // Distributed under the MIT software license, see the accompanying
3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 
5 #include <node/coin.h>
6 
7 #include <node/context.h>
8 #include <txmempool.h>
9 #include <validation.h>
10 
11 namespace node {
12 void FindCoins(const NodeContext &node, std::map<COutPoint, Coin> &coins) {
13  assert(node.mempool);
14  assert(node.chainman);
15  LOCK2(cs_main, node.mempool->cs);
16  CCoinsViewCache &chain_view = node.chainman->ActiveChainstate().CoinsTip();
17  CCoinsViewMemPool mempool_view(&chain_view, *node.mempool);
18  for (auto &coin : coins) {
19  if (!mempool_view.GetCoin(coin.first, coin.second)) {
20  // Either the coin is not in the CCoinsViewCache or is spent. Clear
21  // it.
22  coin.second.Clear();
23  }
24  }
25 }
26 } // namespace node
RecursiveMutex cs_main
Global state.
Definition: validation.cpp:112
CCoinsView that adds a memory cache for transactions to another CCoinsView.
Definition: coins.h:203
CCoinsView that brings transactions from a mempool into view.
Definition: txmempool.h:965
bool GetCoin(const COutPoint &outpoint, Coin &coin) const override
Retrieve the Coin (unspent transaction output) for a given outpoint.
Definition: txmempool.cpp:1129
Definition: init.h:28
void FindCoins(const NodeContext &node, std::map< COutPoint, Coin > &coins)
Look up unspent output information.
Definition: coin.cpp:12
NodeContext struct containing references to chain state and connection state.
Definition: context.h:38
#define LOCK2(cs1, cs2)
Definition: sync.h:246
assert(!tx.IsCoinBase())