1 files changed, 0 insertions, 185 deletions
diff --git a/src/node/coinstats.cpp b/src/node/coinstats.cpp
deleted file mode 100644
index eed43a1bc7..0000000000
--- a/src/node/coinstats.cpp
+++ /dev/null
@@ -1,185 +0,0 @@
-// Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2021 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 <coins.h>
-#include <crypto/muhash.h>
-#include <hash.h>
-#include <index/coinstatsindex.h>
-#include <serialize.h>
-#include <uint256.h>
-#include <util/overflow.h>
-#include <util/system.h>
-#include <validation.h>
-
-#include <map>
-
-namespace node {
-// Database-independent metric indicating the UTXO set size
-uint64_t GetBogoSize(const CScript& script_pub_key)
-{
-    return 32 /* txid */ +
-           4 /* vout index */ +
-           4 /* height + coinbase */ +
-           8 /* amount */ +
-           2 /* scriptPubKey len */ +
-           script_pub_key.size() /* scriptPubKey */;
-}
-
-CDataStream TxOutSer(const COutPoint& outpoint, const Coin& coin) {
-    CDataStream ss(SER_DISK, PROTOCOL_VERSION);
-    ss << outpoint;
-    ss << static_cast<uint32_t>(coin.nHeight * 2 + coin.fCoinBase);
-    ss << coin.out;
-    return ss;
-}
-
-//! Warning: be very careful when changing this! assumeutxo and UTXO snapshot
-//! validation commitments are reliant on the hash constructed by this
-//! function.
-//!
-//! If the construction of this hash is changed, it will invalidate
-//! existing UTXO snapshots. This will not result in any kind of consensus
-//! failure, but it will force clients that were expecting to make use of
-//! assumeutxo to do traditional IBD instead.
-//!
-//! It is also possible, though very unlikely, that a change in this
-//! construction could cause a previously invalid (and potentially malicious)
-//! UTXO snapshot to be considered valid.
-static void ApplyHash(CHashWriter& ss, const uint256& hash, const std::map<uint32_t, Coin>& outputs)
-{
-    for (auto it = outputs.begin(); it != outputs.end(); ++it) {
-        if (it == outputs.begin()) {
-            ss << hash;
-            ss << VARINT(it->second.nHeight * 2 + it->second.fCoinBase ? 1u : 0u);
-        }
-
-        ss << VARINT(it->first + 1);
-        ss << it->second.out.scriptPubKey;
-        ss << VARINT_MODE(it->second.out.nValue, VarIntMode::NONNEGATIVE_SIGNED);
-
-        if (it == std::prev(outputs.end())) {
-            ss << VARINT(0u);
-        }
-    }
-}
-
-static void ApplyHash(std::nullptr_t, const uint256& hash, const std::map<uint32_t, Coin>& outputs) {}
-
-static void ApplyHash(MuHash3072& muhash, const uint256& hash, const std::map<uint32_t, Coin>& outputs)
-{
-    for (auto it = outputs.begin(); it != outputs.end(); ++it) {
-        COutPoint outpoint = COutPoint(hash, it->first);
-        Coin coin = it->second;
-        muhash.Insert(MakeUCharSpan(TxOutSer(outpoint, coin)));
-    }
-}
-
-static void ApplyStats(CCoinsStats& stats, const uint256& hash, const std::map<uint32_t, Coin>& outputs)
-{
-    assert(!outputs.empty());
-    stats.nTransactions++;
-    for (auto it = outputs.begin(); it != outputs.end(); ++it) {
-        stats.nTransactionOutputs++;
-        if (stats.total_amount.has_value()) {
-            stats.total_amount = CheckedAdd(*stats.total_amount, it->second.out.nValue);
-        }
-        stats.nBogoSize += GetBogoSize(it->second.out.scriptPubKey);
-    }
-}
-
-//! Calculate statistics about the unspent transaction output set
-template <typename T>
-static bool GetUTXOStats(CCoinsView* view, BlockManager& blockman, CCoinsStats& stats, T hash_obj, const std::function<void()>& interruption_point, const CBlockIndex* pindex)
-{
-    std::unique_ptr<CCoinsViewCursor> pcursor(view->Cursor());
-    assert(pcursor);
-
-    if (!pindex) {
-        LOCK(cs_main);
-        pindex = blockman.LookupBlockIndex(view->GetBestBlock());
-    }
-    stats.nHeight = Assert(pindex)->nHeight;
-    stats.hashBlock = pindex->GetBlockHash();
-
-    // Use CoinStatsIndex if it is requested and available and a hash_type of Muhash or None was requested
-    if ((stats.m_hash_type == CoinStatsHashType::MUHASH || stats.m_hash_type == CoinStatsHashType::NONE) && g_coin_stats_index && stats.index_requested) {
-        stats.index_used = true;
-        return g_coin_stats_index->LookUpStats(pindex, stats);
-    }
-
-    PrepareHash(hash_obj, stats);
-
-    uint256 prevkey;
-    std::map<uint32_t, Coin> outputs;
-    while (pcursor->Valid()) {
-        interruption_point();
-        COutPoint key;
-        Coin coin;
-        if (pcursor->GetKey(key) && pcursor->GetValue(coin)) {
-            if (!outputs.empty() && key.hash != prevkey) {
-                ApplyStats(stats, prevkey, outputs);
-                ApplyHash(hash_obj, prevkey, outputs);
-                outputs.clear();
-            }
-            prevkey = key.hash;
-            outputs[key.n] = std::move(coin);
-            stats.coins_count++;
-        } else {
-            return error("%s: unable to read value", __func__);
-        }
-        pcursor->Next();
-    }
-    if (!outputs.empty()) {
-        ApplyStats(stats, prevkey, outputs);
-        ApplyHash(hash_obj, prevkey, outputs);
-    }
-
-    FinalizeHash(hash_obj, stats);
-
-    stats.nDiskSize = view->EstimateSize();
-    return true;
-}
-
-bool GetUTXOStats(CCoinsView* view, BlockManager& blockman, CCoinsStats& stats, const std::function<void()>& interruption_point, const CBlockIndex* pindex)
-{
-    switch (stats.m_hash_type) {
-    case(CoinStatsHashType::HASH_SERIALIZED): {
-        CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION);
-        return GetUTXOStats(view, blockman, stats, ss, interruption_point, pindex);
-    }
-    case(CoinStatsHashType::MUHASH): {
-        MuHash3072 muhash;
-        return GetUTXOStats(view, blockman, stats, muhash, interruption_point, pindex);
-    }
-    case(CoinStatsHashType::NONE): {
-        return GetUTXOStats(view, blockman, stats, nullptr, interruption_point, pindex);
-    }
-    } // no default case, so the compiler can warn about missing cases
-    assert(false);
-}
-
-// The legacy hash serializes the hashBlock
-static void PrepareHash(CHashWriter& ss, const CCoinsStats& stats)
-{
-    ss << stats.hashBlock;
-}
-// MuHash does not need the prepare step
-static void PrepareHash(MuHash3072& muhash, CCoinsStats& stats) {}
-static void PrepareHash(std::nullptr_t, CCoinsStats& stats) {}
-
-static void FinalizeHash(CHashWriter& ss, CCoinsStats& stats)
-{
-    stats.hashSerialized = ss.GetHash();
-}
-static void FinalizeHash(MuHash3072& muhash, CCoinsStats& stats)
-{
-    uint256 out;
-    muhash.Finalize(out);
-    stats.hashSerialized = out;
-}
-static void FinalizeHash(std::nullptr_t, CCoinsStats& stats) {}
-} // namespace node