b33bd7a3be
Port over https://github.com/chronokings/huntercoin/pull/19 from Huntercoin: This implements a new RPC command "getchaintips" that can be used to find all currently active chain heads. This is similar to the -printblocktree startup option, but it can be used without restarting just via the RPC interface on a running daemon.
533 lines
21 KiB
C++
533 lines
21 KiB
C++
// Copyright (c) 2010 Satoshi Nakamoto
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// Copyright (c) 2009-2013 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "checkpoints.h"
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#include "main.h"
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#include "rpcserver.h"
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#include "sync.h"
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#include <stdint.h>
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#include "json/json_spirit_value.h"
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using namespace json_spirit;
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using namespace std;
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void ScriptPubKeyToJSON(const CScript& scriptPubKey, Object& out, bool fIncludeHex);
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double GetDifficulty(const CBlockIndex* blockindex)
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{
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// Floating point number that is a multiple of the minimum difficulty,
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// minimum difficulty = 1.0.
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if (blockindex == NULL)
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{
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if (chainActive.Tip() == NULL)
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return 1.0;
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else
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blockindex = chainActive.Tip();
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}
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int nShift = (blockindex->nBits >> 24) & 0xff;
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double dDiff =
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(double)0x0000ffff / (double)(blockindex->nBits & 0x00ffffff);
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while (nShift < 29)
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{
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dDiff *= 256.0;
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nShift++;
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}
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while (nShift > 29)
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{
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dDiff /= 256.0;
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nShift--;
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}
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return dDiff;
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}
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Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex)
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{
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Object result;
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result.push_back(Pair("hash", block.GetHash().GetHex()));
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CMerkleTx txGen(block.vtx[0]);
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txGen.SetMerkleBranch(&block);
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result.push_back(Pair("confirmations", (int)txGen.GetDepthInMainChain()));
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result.push_back(Pair("size", (int)::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION)));
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result.push_back(Pair("height", blockindex->nHeight));
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result.push_back(Pair("version", block.nVersion));
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result.push_back(Pair("merkleroot", block.hashMerkleRoot.GetHex()));
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Array txs;
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BOOST_FOREACH(const CTransaction&tx, block.vtx)
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txs.push_back(tx.GetHash().GetHex());
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result.push_back(Pair("tx", txs));
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result.push_back(Pair("time", block.GetBlockTime()));
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result.push_back(Pair("nonce", (uint64_t)block.nNonce));
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result.push_back(Pair("bits", strprintf("%08x", block.nBits)));
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result.push_back(Pair("difficulty", GetDifficulty(blockindex)));
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result.push_back(Pair("chainwork", blockindex->nChainWork.GetHex()));
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if (blockindex->pprev)
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result.push_back(Pair("previousblockhash", blockindex->pprev->GetBlockHash().GetHex()));
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CBlockIndex *pnext = chainActive.Next(blockindex);
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if (pnext)
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result.push_back(Pair("nextblockhash", pnext->GetBlockHash().GetHex()));
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return result;
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}
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Value getblockcount(const Array& params, bool fHelp)
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{
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if (fHelp || params.size() != 0)
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throw runtime_error(
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"getblockcount\n"
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"\nReturns the number of blocks in the longest block chain.\n"
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"\nResult:\n"
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"n (numeric) The current block count\n"
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"\nExamples:\n"
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+ HelpExampleCli("getblockcount", "")
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+ HelpExampleRpc("getblockcount", "")
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);
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return chainActive.Height();
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}
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Value getbestblockhash(const Array& params, bool fHelp)
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{
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if (fHelp || params.size() != 0)
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throw runtime_error(
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"getbestblockhash\n"
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"\nReturns the hash of the best (tip) block in the longest block chain.\n"
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"\nResult\n"
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"\"hex\" (string) the block hash hex encoded\n"
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"\nExamples\n"
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+ HelpExampleCli("getbestblockhash", "")
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+ HelpExampleRpc("getbestblockhash", "")
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);
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return chainActive.Tip()->GetBlockHash().GetHex();
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}
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Value getdifficulty(const Array& params, bool fHelp)
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{
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if (fHelp || params.size() != 0)
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throw runtime_error(
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"getdifficulty\n"
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"\nReturns the proof-of-work difficulty as a multiple of the minimum difficulty.\n"
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"\nResult:\n"
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"n.nnn (numeric) the proof-of-work difficulty as a multiple of the minimum difficulty.\n"
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"\nExamples:\n"
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+ HelpExampleCli("getdifficulty", "")
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+ HelpExampleRpc("getdifficulty", "")
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);
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return GetDifficulty();
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}
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Value getrawmempool(const Array& params, bool fHelp)
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{
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if (fHelp || params.size() > 1)
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throw runtime_error(
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"getrawmempool ( verbose )\n"
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"\nReturns all transaction ids in memory pool as a json array of string transaction ids.\n"
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"\nArguments:\n"
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"1. verbose (boolean, optional, default=false) true for a json object, false for array of transaction ids\n"
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"\nResult: (for verbose = false):\n"
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"[ (json array of string)\n"
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" \"transactionid\" (string) The transaction id\n"
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" ,...\n"
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"]\n"
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"\nResult: (for verbose = true):\n"
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"{ (json object)\n"
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" \"transactionid\" : { (json object)\n"
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" \"size\" : n, (numeric) transaction size in bytes\n"
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" \"fee\" : n, (numeric) transaction fee in bitcoins\n"
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" \"time\" : n, (numeric) local time transaction entered pool in seconds since 1 Jan 1970 GMT\n"
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" \"height\" : n, (numeric) block height when transaction entered pool\n"
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" \"startingpriority\" : n, (numeric) priority when transaction entered pool\n"
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" \"currentpriority\" : n, (numeric) transaction priority now\n"
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" \"depends\" : [ (array) unconfirmed transactions used as inputs for this transaction\n"
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" \"transactionid\", (string) parent transaction id\n"
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" ... ]\n"
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" }, ...\n"
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"]\n"
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"\nExamples\n"
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+ HelpExampleCli("getrawmempool", "true")
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+ HelpExampleRpc("getrawmempool", "true")
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);
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bool fVerbose = false;
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if (params.size() > 0)
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fVerbose = params[0].get_bool();
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if (fVerbose)
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{
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LOCK(mempool.cs);
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Object o;
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BOOST_FOREACH(const PAIRTYPE(uint256, CTxMemPoolEntry)& entry, mempool.mapTx)
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{
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const uint256& hash = entry.first;
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const CTxMemPoolEntry& e = entry.second;
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Object info;
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info.push_back(Pair("size", (int)e.GetTxSize()));
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info.push_back(Pair("fee", ValueFromAmount(e.GetFee())));
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info.push_back(Pair("time", e.GetTime()));
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info.push_back(Pair("height", (int)e.GetHeight()));
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info.push_back(Pair("startingpriority", e.GetPriority(e.GetHeight())));
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info.push_back(Pair("currentpriority", e.GetPriority(chainActive.Height())));
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const CTransaction& tx = e.GetTx();
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set<string> setDepends;
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BOOST_FOREACH(const CTxIn& txin, tx.vin)
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{
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if (mempool.exists(txin.prevout.hash))
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setDepends.insert(txin.prevout.hash.ToString());
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}
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Array depends(setDepends.begin(), setDepends.end());
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info.push_back(Pair("depends", depends));
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o.push_back(Pair(hash.ToString(), info));
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}
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return o;
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}
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else
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{
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vector<uint256> vtxid;
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mempool.queryHashes(vtxid);
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Array a;
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BOOST_FOREACH(const uint256& hash, vtxid)
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a.push_back(hash.ToString());
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return a;
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}
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}
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Value getblockhash(const Array& params, bool fHelp)
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{
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if (fHelp || params.size() != 1)
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throw runtime_error(
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"getblockhash index\n"
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"\nReturns hash of block in best-block-chain at index provided.\n"
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"\nArguments:\n"
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"1. index (numeric, required) The block index\n"
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"\nResult:\n"
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"\"hash\" (string) The block hash\n"
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"\nExamples:\n"
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+ HelpExampleCli("getblockhash", "1000")
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+ HelpExampleRpc("getblockhash", "1000")
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);
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int nHeight = params[0].get_int();
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if (nHeight < 0 || nHeight > chainActive.Height())
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throw runtime_error("Block number out of range.");
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CBlockIndex* pblockindex = chainActive[nHeight];
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return pblockindex->GetBlockHash().GetHex();
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}
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Value getblock(const Array& params, bool fHelp)
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{
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if (fHelp || params.size() < 1 || params.size() > 2)
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throw runtime_error(
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"getblock \"hash\" ( verbose )\n"
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"\nIf verbose is false, returns a string that is serialized, hex-encoded data for block 'hash'.\n"
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"If verbose is true, returns an Object with information about block <hash>.\n"
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"\nArguments:\n"
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"1. \"hash\" (string, required) The block hash\n"
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"2. verbose (boolean, optional, default=true) true for a json object, false for the hex encoded data\n"
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"\nResult (for verbose = true):\n"
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"{\n"
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" \"hash\" : \"hash\", (string) the block hash (same as provided)\n"
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" \"confirmations\" : n, (numeric) The number of confirmations\n"
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" \"size\" : n, (numeric) The block size\n"
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" \"height\" : n, (numeric) The block height or index\n"
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" \"version\" : n, (numeric) The block version\n"
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" \"merkleroot\" : \"xxxx\", (string) The merkle root\n"
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" \"tx\" : [ (array of string) The transaction ids\n"
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" \"transactionid\" (string) The transaction id\n"
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" ,...\n"
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" ],\n"
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" \"time\" : ttt, (numeric) The block time in seconds since epoch (Jan 1 1970 GMT)\n"
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" \"nonce\" : n, (numeric) The nonce\n"
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" \"bits\" : \"1d00ffff\", (string) The bits\n"
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" \"difficulty\" : x.xxx, (numeric) The difficulty\n"
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" \"previousblockhash\" : \"hash\", (string) The hash of the previous block\n"
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" \"nextblockhash\" : \"hash\" (string) The hash of the next block\n"
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"}\n"
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"\nResult (for verbose=false):\n"
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"\"data\" (string) A string that is serialized, hex-encoded data for block 'hash'.\n"
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"\nExamples:\n"
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+ HelpExampleCli("getblock", "\"00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09\"")
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+ HelpExampleRpc("getblock", "\"00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09\"")
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);
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std::string strHash = params[0].get_str();
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uint256 hash(strHash);
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bool fVerbose = true;
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if (params.size() > 1)
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fVerbose = params[1].get_bool();
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if (mapBlockIndex.count(hash) == 0)
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throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
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CBlock block;
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CBlockIndex* pblockindex = mapBlockIndex[hash];
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if(!ReadBlockFromDisk(block, pblockindex))
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throw JSONRPCError(RPC_INTERNAL_ERROR, "Can't read block from disk");
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if (!fVerbose)
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{
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CDataStream ssBlock(SER_NETWORK, PROTOCOL_VERSION);
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ssBlock << block;
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std::string strHex = HexStr(ssBlock.begin(), ssBlock.end());
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return strHex;
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}
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return blockToJSON(block, pblockindex);
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}
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Value gettxoutsetinfo(const Array& params, bool fHelp)
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{
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if (fHelp || params.size() != 0)
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throw runtime_error(
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"gettxoutsetinfo\n"
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"\nReturns statistics about the unspent transaction output set.\n"
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"Note this call may take some time.\n"
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"\nResult:\n"
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"{\n"
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" \"height\":n, (numeric) The current block height (index)\n"
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" \"bestblock\": \"hex\", (string) the best block hash hex\n"
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" \"transactions\": n, (numeric) The number of transactions\n"
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" \"txouts\": n, (numeric) The number of output transactions\n"
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" \"bytes_serialized\": n, (numeric) The serialized size\n"
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" \"hash_serialized\": \"hash\", (string) The serialized hash\n"
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" \"total_amount\": x.xxx (numeric) The total amount\n"
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"}\n"
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"\nExamples:\n"
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+ HelpExampleCli("gettxoutsetinfo", "")
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+ HelpExampleRpc("gettxoutsetinfo", "")
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);
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Object ret;
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CCoinsStats stats;
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if (pcoinsTip->GetStats(stats)) {
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ret.push_back(Pair("height", (int64_t)stats.nHeight));
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ret.push_back(Pair("bestblock", stats.hashBlock.GetHex()));
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ret.push_back(Pair("transactions", (int64_t)stats.nTransactions));
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ret.push_back(Pair("txouts", (int64_t)stats.nTransactionOutputs));
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ret.push_back(Pair("bytes_serialized", (int64_t)stats.nSerializedSize));
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ret.push_back(Pair("hash_serialized", stats.hashSerialized.GetHex()));
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ret.push_back(Pair("total_amount", ValueFromAmount(stats.nTotalAmount)));
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}
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return ret;
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}
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Value gettxout(const Array& params, bool fHelp)
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{
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if (fHelp || params.size() < 2 || params.size() > 3)
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throw runtime_error(
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"gettxout \"txid\" n ( includemempool )\n"
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"\nReturns details about an unspent transaction output.\n"
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"\nArguments:\n"
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"1. \"txid\" (string, required) The transaction id\n"
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"2. n (numeric, required) vout value\n"
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"3. includemempool (boolean, optional) Whether to included the mem pool\n"
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"\nResult:\n"
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"{\n"
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" \"bestblock\" : \"hash\", (string) the block hash\n"
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" \"confirmations\" : n, (numeric) The number of confirmations\n"
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" \"value\" : x.xxx, (numeric) The transaction value in btc\n"
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" \"scriptPubKey\" : { (json object)\n"
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" \"asm\" : \"code\", (string) \n"
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" \"hex\" : \"hex\", (string) \n"
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" \"reqSigs\" : n, (numeric) Number of required signatures\n"
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" \"type\" : \"pubkeyhash\", (string) The type, eg pubkeyhash\n"
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" \"addresses\" : [ (array of string) array of bitcoin addresses\n"
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" \"bitcoinaddress\" (string) bitcoin address\n"
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" ,...\n"
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" ]\n"
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" },\n"
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" \"version\" : n, (numeric) The version\n"
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" \"coinbase\" : true|false (boolean) Coinbase or not\n"
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"}\n"
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"\nExamples:\n"
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"\nGet unspent transactions\n"
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+ HelpExampleCli("listunspent", "") +
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"\nView the details\n"
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+ HelpExampleCli("gettxout", "\"txid\" 1") +
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"\nAs a json rpc call\n"
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+ HelpExampleRpc("gettxout", "\"txid\", 1")
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);
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Object ret;
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std::string strHash = params[0].get_str();
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uint256 hash(strHash);
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int n = params[1].get_int();
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bool fMempool = true;
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if (params.size() > 2)
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fMempool = params[2].get_bool();
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CCoins coins;
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if (fMempool) {
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LOCK(mempool.cs);
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CCoinsViewMemPool view(*pcoinsTip, mempool);
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if (!view.GetCoins(hash, coins))
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return Value::null;
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mempool.pruneSpent(hash, coins); // TODO: this should be done by the CCoinsViewMemPool
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} else {
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if (!pcoinsTip->GetCoins(hash, coins))
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return Value::null;
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}
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if (n<0 || (unsigned int)n>=coins.vout.size() || coins.vout[n].IsNull())
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return Value::null;
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std::map<uint256, CBlockIndex*>::iterator it = mapBlockIndex.find(pcoinsTip->GetBestBlock());
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CBlockIndex *pindex = it->second;
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ret.push_back(Pair("bestblock", pindex->GetBlockHash().GetHex()));
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if ((unsigned int)coins.nHeight == MEMPOOL_HEIGHT)
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ret.push_back(Pair("confirmations", 0));
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else
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ret.push_back(Pair("confirmations", pindex->nHeight - coins.nHeight + 1));
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ret.push_back(Pair("value", ValueFromAmount(coins.vout[n].nValue)));
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Object o;
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ScriptPubKeyToJSON(coins.vout[n].scriptPubKey, o, true);
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ret.push_back(Pair("scriptPubKey", o));
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ret.push_back(Pair("version", coins.nVersion));
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ret.push_back(Pair("coinbase", coins.fCoinBase));
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return ret;
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}
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Value verifychain(const Array& params, bool fHelp)
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{
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if (fHelp || params.size() > 2)
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throw runtime_error(
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"verifychain ( checklevel numblocks )\n"
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"\nVerifies blockchain database.\n"
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"\nArguments:\n"
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"1. checklevel (numeric, optional, 0-4, default=3) How thorough the block verification is.\n"
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"2. numblocks (numeric, optional, default=288, 0=all) The number of blocks to check.\n"
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"\nResult:\n"
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"true|false (boolean) Verified or not\n"
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"\nExamples:\n"
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+ HelpExampleCli("verifychain", "")
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+ HelpExampleRpc("verifychain", "")
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);
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int nCheckLevel = GetArg("-checklevel", 3);
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int nCheckDepth = GetArg("-checkblocks", 288);
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if (params.size() > 0)
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nCheckLevel = params[0].get_int();
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if (params.size() > 1)
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nCheckDepth = params[1].get_int();
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return CVerifyDB().VerifyDB(nCheckLevel, nCheckDepth);
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}
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Value getblockchaininfo(const Array& params, bool fHelp)
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{
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if (fHelp || params.size() != 0)
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throw runtime_error(
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"getblockchaininfo\n"
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"Returns an object containing various state info regarding block chain processing.\n"
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"\nResult:\n"
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"{\n"
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" \"chain\": \"xxxx\", (string) current network name as defined in BIP70 (main, test, regtest)\n"
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" \"blocks\": xxxxxx, (numeric) the current number of blocks processed in the server\n"
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" \"bestblockhash\": \"...\", (string) the hash of the currently best block\n"
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" \"difficulty\": xxxxxx, (numeric) the current difficulty\n"
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" \"verificationprogress\": xxxx, (numeric) estimate of verification progress [0..1]\n"
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" \"chainwork\": \"xxxx\" (string) total amount of work in active chain, in hexadecimal\n"
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"}\n"
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"\nExamples:\n"
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+ HelpExampleCli("getblockchaininfo", "")
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|
+ HelpExampleRpc("getblockchaininfo", "")
|
|
);
|
|
|
|
Object obj;
|
|
obj.push_back(Pair("chain", Params().NetworkIDString()));
|
|
obj.push_back(Pair("blocks", (int)chainActive.Height()));
|
|
obj.push_back(Pair("bestblockhash", chainActive.Tip()->GetBlockHash().GetHex()));
|
|
obj.push_back(Pair("difficulty", (double)GetDifficulty()));
|
|
obj.push_back(Pair("verificationprogress", Checkpoints::GuessVerificationProgress(chainActive.Tip())));
|
|
obj.push_back(Pair("chainwork", chainActive.Tip()->nChainWork.GetHex()));
|
|
return obj;
|
|
}
|
|
|
|
/* Comparison function for sorting the getchaintips heads. */
|
|
struct CompareBlocksByHeight
|
|
{
|
|
bool operator()(const CBlockIndex* a, const CBlockIndex* b) const
|
|
{
|
|
/* Make sure that unequal blocks with the same height do not compare
|
|
equal. Use the pointers themselves to make a distinction. */
|
|
|
|
if (a->nHeight != b->nHeight)
|
|
return (a->nHeight > b->nHeight);
|
|
|
|
return a < b;
|
|
}
|
|
};
|
|
|
|
Value getchaintips(const Array& params, bool fHelp)
|
|
{
|
|
if (fHelp || params.size() != 0)
|
|
throw runtime_error(
|
|
"getchaintips\n"
|
|
"Return information about all known tips in the block tree,"
|
|
" including the main chain as well as orphaned branches.\n"
|
|
"\nResult:\n"
|
|
"[\n"
|
|
" {\n"
|
|
" \"height\": xxxx, (numeric) height of the chain tip\n"
|
|
" \"hash\": \"xxxx\", (string) block hash of the tip\n"
|
|
" \"branchlen\": 0 (numeric) zero for main chain\n"
|
|
" },\n"
|
|
" {\n"
|
|
" \"height\": xxxx,\n"
|
|
" \"hash\": \"xxxx\",\n"
|
|
" \"branchlen\": 1 (numeric) length of branch connecting the tip to the main chain\n"
|
|
" }\n"
|
|
"]\n"
|
|
"\nExamples:\n"
|
|
+ HelpExampleCli("getchaintips", "")
|
|
+ HelpExampleRpc("getchaintips", "")
|
|
);
|
|
|
|
/* Build up a list of chain tips. We start with the list of all
|
|
known blocks, and successively remove blocks that appear as pprev
|
|
of another block. */
|
|
std::set<const CBlockIndex*, CompareBlocksByHeight> setTips;
|
|
BOOST_FOREACH(const PAIRTYPE(const uint256, CBlockIndex*)& item, mapBlockIndex)
|
|
setTips.insert(item.second);
|
|
BOOST_FOREACH(const PAIRTYPE(const uint256, CBlockIndex*)& item, mapBlockIndex)
|
|
{
|
|
const CBlockIndex* pprev = item.second->pprev;
|
|
if (pprev)
|
|
setTips.erase(pprev);
|
|
}
|
|
|
|
/* Construct the output array. */
|
|
Array res;
|
|
BOOST_FOREACH(const CBlockIndex* block, setTips)
|
|
{
|
|
Object obj;
|
|
obj.push_back(Pair("height", block->nHeight));
|
|
obj.push_back(Pair("hash", block->phashBlock->GetHex()));
|
|
|
|
const int branchLen = block->nHeight - chainActive.FindFork(block)->nHeight;
|
|
obj.push_back(Pair("branchlen", branchLen));
|
|
|
|
res.push_back(obj);
|
|
}
|
|
|
|
return res;
|
|
}
|