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Add FindScriptPubKey() to search the UTXO set

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Jonas Schnelli 2018-01-15 11:23:44 -10:00
parent 56f69360dc
commit 9048575511
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GPG key ID: 1EB776BB03C7922D
1 changed files with 29 additions and 0 deletions
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29
src/rpc/blockchain.cpp
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@ -1916,6 +1916,35 @@ static UniValue savemempool(const JSONRPCRequest& request)
return NullUniValue;
}
//! Search for a given set of pubkey scripts
bool FindScriptPubKey(std::atomic<int>& scan_progress, const std::atomic<bool>& should_abort, int64_t& count, CCoinsViewCursor* cursor, const std::set<CScript>& needles, std::map<COutPoint, Coin>& out_results) {
scan_progress = 0;
count = 0;
while (cursor->Valid()) {
COutPoint key;
Coin coin;
if (!cursor->GetKey(key) || !cursor->GetValue(coin)) return false;
if (++count % 8192 == 0) {
boost::this_thread::interruption_point();
if (should_abort) {
// allow to abort the scan via the abort reference
return false;
}
}
if (count % 256 == 0) {
// update progress reference every 256 item
uint32_t high = 0x100 * *key.hash.begin() + *(key.hash.begin() + 1);
scan_progress = (int)(high * 100.0 / 65536.0 + 0.5);
}
if (needles.count(coin.out.scriptPubKey)) {
out_results.emplace(key, coin);
}
cursor->Next();
}
scan_progress = 100;
return true;
}
static const CRPCCommand commands[] =
{ // category name actor (function) argNames
// --------------------- ------------------------ ----------------------- ----------