highperfocused/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2025-11-12 06:58:57 +01:00
Code Issues Packages Projects Releases Wiki Activity

Switch CCoinsView and chainstate db from per-txid to per-txout

Browse Source 
This patch makes several related changes:
* Changes the CCoinsView virtual methods (GetCoins, HaveCoins, ...)
  to be COutPoint/Coin-based rather than txid/CCoins-based.
* Changes the chainstate db to a new incompatible format that is also
  COutPoint/Coin based.
* Implements reconstruction code for hash_serialized_2.
* Adapts the coins_tests unit tests (thanks to Russell Yanofsky).

A side effect of the new CCoinsView model is that we can no longer
use the (unreliable) test for transaction outputs in the UTXO set
to determine whether we already have a particular transaction.
This commit is contained in:
Pieter Wuille
2017-04-25 11:29:39 -07:00
parent 4ec0d9e794
commit 5083079688
15 changed files with 363 additions and 373 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/rest.cpp
View File

@@ -47,6 +47,9 @@ struct CCoin {
ADD_SERIALIZE_METHODS;
CCoin() : nHeight(0) {}
CCoin(Coin&& in) : nHeight(in.nHeight), out(std::move(in.out)) {}
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action)
{
@@ -509,20 +512,11 @@ static bool rest_getutxos(HTTPRequest* req, const std::string& strURIPart)
view.SetBackend(viewMempool); // switch cache backend to db+mempool in case user likes to query mempool
for (size_t i = 0; i < vOutPoints.size(); i++) {
CCoins coins;
uint256 hash = vOutPoints[i].hash;
bool hit = false;
if (view.GetCoins(hash, coins)) {
if (coins.IsAvailable(vOutPoints[i].n) && !mempool.isSpent(vOutPoints[i])) {
hit = true;
// Safe to index into vout here because IsAvailable checked if it's off the end of the array, or if
// n is valid but points to an already spent output (IsNull).
CCoin coin;
coin.nHeight = coins.nHeight;
coin.out = coins.vout.at(vOutPoints[i].n);
assert(!coin.out.IsNull());
outs.push_back(coin);
}
Coin coin;
if (view.GetCoins(vOutPoints[i], coin) && !mempool.isSpent(vOutPoints[i])) {
hit = true;
outs.emplace_back(std::move(coin));
}
hits.push_back(hit);