aboutsummaryrefslogtreecommitdiff
path: root/src/node
diff options
context:
space:
mode:
Diffstat (limited to 'src/node')
-rw-r--r--src/node/coinstats.cpp77
-rw-r--r--src/node/coinstats.h33
2 files changed, 110 insertions, 0 deletions
diff --git a/src/node/coinstats.cpp b/src/node/coinstats.cpp
new file mode 100644
index 0000000000..e1891b9898
--- /dev/null
+++ b/src/node/coinstats.cpp
@@ -0,0 +1,77 @@
+// Copyright (c) 2010 Satoshi Nakamoto
+// Copyright (c) 2009-2019 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <node/coinstats.h>
+
+#include <amount.h>
+#include <coins.h>
+#include <chain.h>
+#include <hash.h>
+#include <serialize.h>
+#include <validation.h>
+#include <uint256.h>
+#include <util/system.h>
+
+#include <map>
+
+#include <boost/thread.hpp>
+
+
+static void ApplyStats(CCoinsStats &stats, CHashWriter& ss, const uint256& hash, const std::map<uint32_t, Coin>& outputs)
+{
+ assert(!outputs.empty());
+ ss << hash;
+ ss << VARINT(outputs.begin()->second.nHeight * 2 + outputs.begin()->second.fCoinBase ? 1u : 0u);
+ stats.nTransactions++;
+ for (const auto& output : outputs) {
+ ss << VARINT(output.first + 1);
+ ss << output.second.out.scriptPubKey;
+ ss << VARINT(output.second.out.nValue, VarIntMode::NONNEGATIVE_SIGNED);
+ stats.nTransactionOutputs++;
+ stats.nTotalAmount += output.second.out.nValue;
+ stats.nBogoSize += 32 /* txid */ + 4 /* vout index */ + 4 /* height + coinbase */ + 8 /* amount */ +
+ 2 /* scriptPubKey len */ + output.second.out.scriptPubKey.size() /* scriptPubKey */;
+ }
+ ss << VARINT(0u);
+}
+
+//! Calculate statistics about the unspent transaction output set
+bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats)
+{
+ std::unique_ptr<CCoinsViewCursor> pcursor(view->Cursor());
+ assert(pcursor);
+
+ CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION);
+ stats.hashBlock = pcursor->GetBestBlock();
+ {
+ LOCK(cs_main);
+ stats.nHeight = LookupBlockIndex(stats.hashBlock)->nHeight;
+ }
+ ss << stats.hashBlock;
+ uint256 prevkey;
+ std::map<uint32_t, Coin> outputs;
+ while (pcursor->Valid()) {
+ boost::this_thread::interruption_point();
+ COutPoint key;
+ Coin coin;
+ if (pcursor->GetKey(key) && pcursor->GetValue(coin)) {
+ if (!outputs.empty() && key.hash != prevkey) {
+ ApplyStats(stats, ss, prevkey, outputs);
+ outputs.clear();
+ }
+ prevkey = key.hash;
+ outputs[key.n] = std::move(coin);
+ } else {
+ return error("%s: unable to read value", __func__);
+ }
+ pcursor->Next();
+ }
+ if (!outputs.empty()) {
+ ApplyStats(stats, ss, prevkey, outputs);
+ }
+ stats.hashSerialized = ss.GetHash();
+ stats.nDiskSize = view->EstimateSize();
+ return true;
+}
diff --git a/src/node/coinstats.h b/src/node/coinstats.h
new file mode 100644
index 0000000000..7c11aab8bd
--- /dev/null
+++ b/src/node/coinstats.h
@@ -0,0 +1,33 @@
+// Copyright (c) 2010 Satoshi Nakamoto
+// Copyright (c) 2009-2019 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_NODE_COINSTATS_H
+#define BITCOIN_NODE_COINSTATS_H
+
+#include <amount.h>
+#include <uint256.h>
+
+#include <cstdint>
+
+class CCoinsView;
+
+struct CCoinsStats
+{
+ int nHeight;
+ uint256 hashBlock;
+ uint64_t nTransactions;
+ uint64_t nTransactionOutputs;
+ uint64_t nBogoSize;
+ uint256 hashSerialized;
+ uint64_t nDiskSize;
+ CAmount nTotalAmount;
+
+ CCoinsStats() : nHeight(0), nTransactions(0), nTransactionOutputs(0), nBogoSize(0), nDiskSize(0), nTotalAmount(0) {}
+};
+
+//! Calculate statistics about the unspent transaction output set
+bool GetUTXOStats(CCoinsView* view, CCoinsStats& stats);
+
+#endif // BITCOIN_NODE_COINSTATS_H