Bitcoin Core  0.19.99
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 void FindCoins(const NodeContext& node, std::map<COutPoint, Coin>& coins)
12 {
13  assert(node.mempool);
14  LOCK2(cs_main, node.mempool->cs);
16  CCoinsViewMemPool mempool_view(&chain_view, *node.mempool);
17  for (auto& coin : coins) {
18  if (!mempool_view.GetCoin(coin.first, coin.second)) {
19  // Either the coin is not in the CCoinsViewCache or is spent. Clear it.
20  coin.second.Clear();
21  }
22  }
23 }
bool GetCoin(const COutPoint &outpoint, Coin &coin) const override
Retrieve the Coin (unspent transaction output) for a given outpoint.
Definition: txmempool.cpp:900
#define LOCK2(cs1, cs2)
Definition: sync.h:219
NodeContext struct containing references to chain state and connection state.
Definition: context.h:31
RecursiveMutex cs_main
Mutex to guard access to validation specific variables, such as reading or changing the chainstate...
Definition: validation.cpp:105
CChainState & ChainstateActive()
Definition: validation.cpp:85
void FindCoins(const NodeContext &node, std::map< COutPoint, Coin > &coins)
Look up unspent output information.
Definition: coin.cpp:11
CCoinsViewCache & CoinsTip() EXCLUSIVE_LOCKS_REQUIRED(cs_main)
Definition: validation.h:631
CCoinsView that adds a memory cache for transactions to another CCoinsView.
Definition: coins.h:210
CCoinsView that brings transactions from a mempool into view.
Definition: txmempool.h:801
RecursiveMutex cs
This mutex needs to be locked when accessing mapTx or other members that are guarded by it...
Definition: txmempool.h:520
CTxMemPool * mempool
Definition: context.h:33