Bitcoin Core  0.18.99
P2P Digital Currency
Classes | Typedefs | Functions
coins.h File Reference
#include <primitives/transaction.h>
#include <compressor.h>
#include <core_memusage.h>
#include <crypto/siphash.h>
#include <memusage.h>
#include <serialize.h>
#include <uint256.h>
#include <assert.h>
#include <stdint.h>
#include <unordered_map>
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Classes

class  Coin
 A UTXO entry. More...
 
class  SaltedOutpointHasher
 
struct  CCoinsCacheEntry
 
class  CCoinsViewCursor
 Cursor for iterating over CoinsView state. More...
 
class  CCoinsView
 Abstract view on the open txout dataset. More...
 
class  CCoinsViewBacked
 CCoinsView backed by another CCoinsView. More...
 
class  CCoinsViewCache
 CCoinsView that adds a memory cache for transactions to another CCoinsView. More...
 

Typedefs

typedef std::unordered_map< COutPoint, CCoinsCacheEntry, SaltedOutpointHasherCCoinsMap
 

Functions

void AddCoins (CCoinsViewCache &cache, const CTransaction &tx, int nHeight, bool check=false)
 Utility function to add all of a transaction's outputs to a cache. More...
 
const CoinAccessByTxid (const CCoinsViewCache &cache, const uint256 &txid)
 Utility function to find any unspent output with a given txid. More...
 

Typedef Documentation

◆ CCoinsMap

Definition at line 122 of file coins.h.

Function Documentation

◆ AccessByTxid()

const Coin& AccessByTxid ( const CCoinsViewCache cache,
const uint256 txid 
)

Utility function to find any unspent output with a given txid.

This function can be quite expensive because in the event of a transaction which is not found in the cache, it can cause up to MAX_OUTPUTS_PER_BLOCK lookups to database, so it should be used with care.

Definition at line 251 of file coins.cpp.

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◆ AddCoins()

void AddCoins ( CCoinsViewCache cache,
const CTransaction tx,
int  nHeight,
bool  check = false 
)

Utility function to add all of a transaction's outputs to a cache.

When check is false, this assumes that overwrites are only possible for coinbase transactions. When check is true, the underlying view may be queried to determine whether an addition is an overwrite.

Definition at line 88 of file coins.cpp.

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