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blockchain.cpp
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blockchain.cpp
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// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin developers
// Copyright (c) 2014-2015 The Dash developers
// Copyright (c) 2015-2020 The PIVX developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or https://www.opensource.org/licenses/mit-license.php.
#include "budget/budgetmanager.h"
#include "checkpoints.h"
#include "clientversion.h"
#include "core_io.h"
#include "consensus/upgrades.h"
#include "kernel.h"
#include "key_io.h"
#include "masternodeman.h"
#include "policy/feerate.h"
#include "policy/policy.h"
#include "rpc/server.h"
#include "sync.h"
#include "txdb.h"
#include "util/system.h"
#include "utilmoneystr.h"
#include "utilstrencodings.h"
#include "hash.h"
#include "validationinterface.h"
#include "wallet/wallet.h"
#include "warnings.h"
#include <stdint.h>
#include <univalue.h>
#include <numeric>
#include <condition_variable>
#include <boost/thread/thread.hpp> // boost::thread::interrupt
struct CUpdatedBlock
{
uint256 hash;
int height;
};
static std::mutex cs_blockchange;
static std::condition_variable cond_blockchange;
static CUpdatedBlock latestblock;
extern void TxToJSON(CWallet* const pwallet, const CTransaction& tx, const uint256 hashBlock, UniValue& entry);
UniValue syncwithvalidationinterfacequeue(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() > 0) {
throw std::runtime_error(
"syncwithvalidationinterfacequeue\n"
"\nWaits for the validation interface queue to catch up on everything that was there when we entered this function.\n"
"\nExamples:\n"
+ HelpExampleCli("syncwithvalidationinterfacequeue","")
+ HelpExampleRpc("syncwithvalidationinterfacequeue","")
);
}
SyncWithValidationInterfaceQueue();
return NullUniValue;
}
double GetDifficulty(const CBlockIndex* blockindex)
{
// Floating point number that is a multiple of the minimum difficulty,
// minimum difficulty = 1.0.
if (blockindex == NULL) {
const CBlockIndex* pChainTip = GetChainTip();
if (!pChainTip)
return 1.0;
else
blockindex = pChainTip;
}
int nShift = (blockindex->nBits >> 24) & 0xff;
double dDiff =
(double)0x0000ffff / (double)(blockindex->nBits & 0x00ffffff);
while (nShift < 29) {
dDiff *= 256.0;
nShift++;
}
while (nShift > 29) {
dDiff /= 256.0;
nShift--;
}
return dDiff;
}
static UniValue ValuePoolDesc(
const Optional<CAmount> chainValue,
const Optional<CAmount> valueDelta)
{
UniValue rv(UniValue::VOBJ);
rv.pushKV("chainValue", ValueFromAmount(chainValue ? *chainValue : 0));
rv.pushKV("valueDelta", ValueFromAmount(valueDelta ? *valueDelta : 0));
return rv;
}
UniValue blockheaderToJSON(const CBlockIndex* blockindex)
{
UniValue result(UniValue::VOBJ);
result.pushKV("hash", blockindex->GetBlockHash().GetHex());
int confirmations = -1;
// Only report confirmations if the block is on the main chain
if (chainActive.Contains(blockindex))
confirmations = chainActive.Height() - blockindex->nHeight + 1;
result.pushKV("confirmations", confirmations);
result.pushKV("height", blockindex->nHeight);
result.pushKV("version", blockindex->nVersion);
result.pushKV("merkleroot", blockindex->hashMerkleRoot.GetHex());
result.pushKV("time", (int64_t)blockindex->nTime);
result.pushKV("mediantime", (int64_t)blockindex->GetMedianTimePast());
result.pushKV("nonce", (uint64_t)blockindex->nNonce);
result.pushKV("bits", strprintf("%08x", blockindex->nBits));
result.pushKV("difficulty", GetDifficulty(blockindex));
result.pushKV("chainwork", blockindex->nChainWork.GetHex());
result.pushKV("acc_checkpoint", blockindex->nAccumulatorCheckpoint.GetHex());
// Sapling shield pool value
result.pushKV("shield_pool_value", ValuePoolDesc(blockindex->nChainSaplingValue, blockindex->nSaplingValue));
if (blockindex->pprev)
result.pushKV("previousblockhash", blockindex->pprev->GetBlockHash().GetHex());
CBlockIndex *pnext = chainActive.Next(blockindex);
if (pnext)
result.pushKV("nextblockhash", pnext->GetBlockHash().GetHex());
return result;
}
UniValue blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDetails = false)
{
UniValue result(UniValue::VOBJ);
result.pushKV("hash", block.GetHash().GetHex());
int confirmations = -1;
// Only report confirmations if the block is on the main chain
if (chainActive.Contains(blockindex))
confirmations = chainActive.Height() - blockindex->nHeight + 1;
result.pushKV("confirmations", confirmations);
result.pushKV("size", (int)::GetSerializeSize(block, PROTOCOL_VERSION));
result.pushKV("height", blockindex->nHeight);
result.pushKV("version", block.nVersion);
result.pushKV("merkleroot", block.hashMerkleRoot.GetHex());
result.pushKV("acc_checkpoint", block.nAccumulatorCheckpoint.GetHex());
result.pushKV("finalsaplingroot", block.hashFinalSaplingRoot.GetHex());
UniValue txs(UniValue::VARR);
for (const auto& txIn : block.vtx) {
const CTransaction& tx = *txIn;
if (txDetails) {
UniValue objTx(UniValue::VOBJ);
TxToJSON(nullptr, tx, UINT256_ZERO, objTx);
txs.push_back(objTx);
} else
txs.push_back(tx.GetHash().GetHex());
}
result.pushKV("tx", txs);
result.pushKV("time", block.GetBlockTime());
result.pushKV("mediantime", (int64_t)blockindex->GetMedianTimePast());
result.pushKV("nonce", (uint64_t)block.nNonce);
result.pushKV("bits", strprintf("%08x", block.nBits));
result.pushKV("difficulty", GetDifficulty(blockindex));
result.pushKV("chainwork", blockindex->nChainWork.GetHex());
if (blockindex->pprev)
result.pushKV("previousblockhash", blockindex->pprev->GetBlockHash().GetHex());
CBlockIndex* pnext = chainActive.Next(blockindex);
if (pnext)
result.pushKV("nextblockhash", pnext->GetBlockHash().GetHex());
//////////
////////// Coin stake data ////////////////
/////////
if (block.IsProofOfStake()) {
uint256 hashProofOfStakeRet{UINT256_ZERO};
if (blockindex->pprev && !GetStakeKernelHash(hashProofOfStakeRet, block, blockindex->pprev))
throw JSONRPCError(RPC_INTERNAL_ERROR, "Cannot get proof of stake hash");
std::string stakeModifier = (Params().GetConsensus().NetworkUpgradeActive(blockindex->nHeight, Consensus::UPGRADE_V3_4) ?
blockindex->GetStakeModifierV2().GetHex() :
strprintf("%016x", blockindex->GetStakeModifierV1()));
result.pushKV("stakeModifier", stakeModifier);
result.pushKV("hashProofOfStake", hashProofOfStakeRet.GetHex());
}
return result;
}
UniValue getblockcount(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 0)
throw std::runtime_error(
"getblockcount\n"
"\nReturns the number of blocks in the longest block chain.\n"
"\nResult:\n"
"n (numeric) The current block count\n"
"\nExamples:\n" +
HelpExampleCli("getblockcount", "") + HelpExampleRpc("getblockcount", ""));
LOCK(cs_main);
return chainActive.Height();
}
UniValue getbestblockhash(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 0)
throw std::runtime_error(
"getbestblockhash\n"
"\nReturns the hash of the best (tip) block in the longest block chain.\n"
"\nResult\n"
"\"hex\" (string) the block hash hex encoded\n"
"\nExamples\n" +
HelpExampleCli("getbestblockhash", "") + HelpExampleRpc("getbestblockhash", ""));
LOCK(cs_main);
return chainActive.Tip()->GetBlockHash().GetHex();
}
UniValue getbestsaplinganchor(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 0)
throw std::runtime_error(
"getbestsaplinganchor\n"
"\nReturns the most recent SaplingMerkleTree root.\n"
"\nResult\n"
"\"hex\" (string) the sapling anchor hex encoded\n"
"\nExamples\n" +
HelpExampleCli("getbestsaplinganchor", "") + HelpExampleRpc("getbestsaplinganchor", ""));
return pcoinsTip->GetBestAnchor().ToString();
}
void RPCNotifyBlockChange(bool fInitialDownload, const CBlockIndex* pindex)
{
if(pindex) {
std::lock_guard<std::mutex> lock(cs_blockchange);
latestblock.hash = pindex->GetBlockHash();
latestblock.height = pindex->nHeight;
}
cond_blockchange.notify_all();
}
UniValue waitfornewblock(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() > 1)
throw std::runtime_error(
"waitfornewblock ( timeout )\n"
"\nWaits for a specific new block and returns useful info about it.\n"
"\nReturns the current block on timeout or exit.\n"
"\nArguments:\n"
"1. timeout (numeric, optional, default=0) Time in milliseconds to wait for a response. 0 indicates no timeout.\n"
"\nResult:\n"
"{ (json object)\n"
" \"hash\": \"hash\", (string) The blockhash\n"
" \"height\": n (numeric) Block height\n"
"}\n"
"\nExamples:\n"
+ HelpExampleCli("waitfornewblock", "1000")
+ HelpExampleRpc("waitfornewblock", "1000")
);
int timeout = 0;
if (request.params.size() > 0)
timeout = request.params[0].get_int();
CUpdatedBlock block;
{
std::unique_lock<std::mutex> lock(cs_blockchange);
block = latestblock;
if(timeout)
cond_blockchange.wait_for(lock, std::chrono::milliseconds(timeout), [&block]{return latestblock.height != block.height || latestblock.hash != block.hash || !IsRPCRunning(); });
else
cond_blockchange.wait(lock, [&block]{return latestblock.height != block.height || latestblock.hash != block.hash || !IsRPCRunning(); });
block = latestblock;
}
UniValue ret(UniValue::VOBJ);
ret.pushKV("hash", block.hash.GetHex());
ret.pushKV("height", block.height);
return ret;
}
UniValue waitforblock(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
throw std::runtime_error(
"waitforblock blockhash ( timeout )\n"
"\nWaits for a specific new block and returns useful info about it.\n"
"\nReturns the current block on timeout or exit.\n"
"\nArguments:\n"
"1. \"blockhash\" (string, required) Block hash to wait for.\n"
"2. timeout (numeric, optional, default=0) Time in milliseconds to wait for a response. 0 indicates no timeout.\n"
"\nResult:\n"
"{ (json object)\n"
" \"hash\": \"hash\", (string) The blockhash\n"
" \"height\": n (numeric) Block height\n"
"}\n"
"\nExamples:\n"
+ HelpExampleCli("waitforblock", "\"0000000000079f8ef3d2c688c244eb7a4570b24c9ed7b4a8c619eb02596f8862\", 1000")
+ HelpExampleRpc("waitforblock", "\"0000000000079f8ef3d2c688c244eb7a4570b24c9ed7b4a8c619eb02596f8862\", 1000")
);
int timeout = 0;
uint256 hash = uint256S(request.params[0].get_str());
if (request.params.size() > 1)
timeout = request.params[1].get_int();
CUpdatedBlock block;
{
std::unique_lock<std::mutex> lock(cs_blockchange);
if(timeout)
cond_blockchange.wait_for(lock, std::chrono::milliseconds(timeout), [&hash]{return latestblock.hash == hash || !IsRPCRunning();});
else
cond_blockchange.wait(lock, [&hash]{return latestblock.hash == hash || !IsRPCRunning(); });
block = latestblock;
}
UniValue ret(UniValue::VOBJ);
ret.pushKV("hash", block.hash.GetHex());
ret.pushKV("height", block.height);
return ret;
}
UniValue waitforblockheight(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
throw std::runtime_error(
"waitforblockheight height ( timeout )\n"
"\nWaits for (at least) block height and returns the height and hash\n"
"of the current tip.\n"
"\nReturns the current block on timeout or exit.\n"
"\nArguments:\n"
"1. height (numeric, required) Block height to wait for\n"
"2. timeout (numeric, optional, default=0) Time in milliseconds to wait for a response. 0 indicates no timeout.\n"
"\nResult:\n"
"{ (json object)\n"
" \"hash\": \"hash\", (string) The blockhash\n"
" \"height\": n (int) Block height\n"
"}\n"
"\nExamples:\n"
+ HelpExampleCli("waitforblockheight", "\"100\", 1000")
+ HelpExampleRpc("waitforblockheight", "\"100\", 1000")
);
int timeout = 0;
int height = request.params[0].get_int();
if (request.params.size() > 1)
timeout = request.params[1].get_int();
CUpdatedBlock block;
{
std::unique_lock<std::mutex> lock(cs_blockchange);
if(timeout)
cond_blockchange.wait_for(lock, std::chrono::milliseconds(timeout), [&height]{return latestblock.height >= height || !IsRPCRunning();});
else
cond_blockchange.wait(lock, [&height]{return latestblock.height >= height || !IsRPCRunning(); });
block = latestblock;
}
UniValue ret(UniValue::VOBJ);
ret.pushKV("hash", block.hash.GetHex());
ret.pushKV("height", block.height);
return ret;
}
UniValue getdifficulty(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 0)
throw std::runtime_error(
"getdifficulty\n"
"\nReturns the proof-of-work difficulty as a multiple of the minimum difficulty.\n"
"\nResult:\n"
"n.nnn (numeric) the proof-of-work difficulty as a multiple of the minimum difficulty.\n"
"\nExamples:\n" +
HelpExampleCli("getdifficulty", "") + HelpExampleRpc("getdifficulty", ""));
LOCK(cs_main);
return GetDifficulty();
}
static std::string EntryDescriptionString()
{
return " \"size\" : n, (numeric) transaction size in bytes\n"
" \"fee\" : n, (numeric) transaction fee in " + CURRENCY_UNIT + "\n"
" \"modifiedfee\" : n, (numeric) transaction fee with fee deltas used for mining priority\n"
" \"time\" : n, (numeric) local time transaction entered pool in seconds since 1 Jan 1970 GMT\n"
" \"height\" : n, (numeric) block height when transaction entered pool\n"
" \"descendantcount\" : n, (numeric) number of in-mempool descendant transactions (including this one)\n"
" \"descendantsize\" : n, (numeric) size of in-mempool descendants (including this one)\n"
" \"descendantfees\" : n, (numeric) modified fees (see above) of in-mempool descendants (including this one)\n"
" \"depends\" : [ (array) unconfirmed transactions used as inputs for this transaction\n"
" \"transactionid\", (string) parent transaction id\n"
" ... ]\n";
}
static void entryToJSON(UniValue &info, const CTxMemPoolEntry &e)
{
AssertLockHeld(mempool.cs);
info.pushKV("size", (int)e.GetTxSize());
info.pushKV("fee", ValueFromAmount(e.GetFee()));
info.pushKV("modifiedfee", ValueFromAmount(e.GetModifiedFee()));
info.pushKV("time", e.GetTime());
info.pushKV("height", (int)e.GetHeight());
info.pushKV("descendantcount", e.GetCountWithDescendants());
info.pushKV("descendantsize", e.GetSizeWithDescendants());
info.pushKV("descendantfees", e.GetModFeesWithDescendants());
const CTransaction& tx = e.GetTx();
std::set<std::string> setDepends;
for (const CTxIn& txin : tx.vin) {
if (mempool.exists(txin.prevout.hash))
setDepends.insert(txin.prevout.hash.ToString());
}
UniValue depends(UniValue::VARR);
for (const std::string& dep : setDepends) {
depends.push_back(dep);
}
info.pushKV("depends", depends);
}
UniValue mempoolToJSON(bool fVerbose = false)
{
if (fVerbose) {
LOCK(mempool.cs);
UniValue o(UniValue::VOBJ);
for (const CTxMemPoolEntry& e : mempool.mapTx) {
const uint256& hash = e.GetTx().GetHash();
UniValue info(UniValue::VOBJ);
entryToJSON(info, e);
o.pushKV(hash.ToString(), info);
}
return o;
} else {
std::vector<uint256> vtxid;
mempool.queryHashes(vtxid);
UniValue a(UniValue::VARR);
for (const uint256& hash : vtxid)
a.push_back(hash.ToString());
return a;
}
}
UniValue getrawmempool(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() > 1)
throw std::runtime_error(
"getrawmempool ( verbose )\n"
"\nReturns all transaction ids in memory pool as a json array of string transaction ids.\n"
"\nArguments:\n"
"1. verbose (boolean, optional, default=false) True for a json object, false for array of transaction ids\n"
"\nResult: (for verbose = false):\n"
"[ (json array of string)\n"
" \"transactionid\" (string) The transaction id\n"
" ,...\n"
"]\n"
"\nResult: (for verbose = true):\n"
"{ (json object)\n"
" \"transactionid\" : { (json object)\n"
+ EntryDescriptionString()
+ " }, ...\n"
"}\n"
"\nExamples\n" +
HelpExampleCli("getrawmempool", "true") + HelpExampleRpc("getrawmempool", "true"));
LOCK(cs_main);
bool fVerbose = false;
if (request.params.size() > 0)
fVerbose = request.params[0].get_bool();
return mempoolToJSON(fVerbose);
}
UniValue getblockhash(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 1)
throw std::runtime_error(
"getblockhash height\n"
"\nReturns hash of block in best-block-chain at height provided.\n"
"\nArguments:\n"
"1. height (numeric, required) The height index\n"
"\nResult:\n"
"\"hash\" (string) The block hash\n"
"\nExamples:\n" +
HelpExampleCli("getblockhash", "1000") + HelpExampleRpc("getblockhash", "1000"));
LOCK(cs_main);
int nHeight = request.params[0].get_int();
if (nHeight < 0 || nHeight > chainActive.Height())
throw JSONRPCError(RPC_INVALID_PARAMETER, "Block height out of range");
CBlockIndex* pblockindex = chainActive[nHeight];
return pblockindex->GetBlockHash().GetHex();
}
UniValue getblock(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
throw std::runtime_error(
"getblock \"blockhash\" ( verbose )\n"
"\nIf verbose is false, returns a string that is serialized, hex-encoded data for block 'hash'.\n"
"If verbose is true, returns an Object with information about block <hash>.\n"
"\nArguments:\n"
"1. \"blockhash\" (string, required) The block hash\n"
"2. verbose (boolean, optional, default=true) True for a json object, false for the hex encoded data\n"
"\nResult (for verbose = true):\n"
"{\n"
" \"hash\" : \"hash\", (string) the block hash (same as provided)\n"
" \"confirmations\" : n, (numeric) The number of confirmations, or -1 if the block is not on the main chain\n"
" \"size\" : n, (numeric) The block size\n"
" \"height\" : n, (numeric) The block height or index\n"
" \"version\" : n, (numeric) The block version\n"
" \"merkleroot\" : \"xxxx\", (string) The merkle root\n"
" \"finalsaplingroot\" : \"xxxx\", (string) The root of the Sapling commitment tree after applying this block\n"
" \"tx\" : [ (array of string) The transaction ids\n"
" \"transactionid\" (string) The transaction id\n"
" ,...\n"
" ],\n"
" \"time\" : ttt, (numeric) The block time in seconds since epoch (Jan 1 1970 GMT)\n"
" \"mediantime\" : ttt, (numeric) The median block time in seconds since epoch (Jan 1 1970 GMT)\n"
" \"nonce\" : n, (numeric) The nonce\n"
" \"bits\" : \"1d00ffff\", (string) The bits\n"
" \"difficulty\" : x.xxx, (numeric) The difficulty\n"
" \"previousblockhash\" : \"hash\", (string) The hash of the previous block\n"
" \"nextblockhash\" : \"hash\" (string) The hash of the next block\n"
" \"stakeModifier\" : \"xxx\", (string) Proof of Stake modifier\n"
" \"hashProofOfStake\" : \"hash\", (string) Proof of Stake hash\n"
" }\n"
"}\n"
"\nResult (for verbose=false):\n"
"\"data\" (string) A string that is serialized, hex-encoded data for block 'hash'.\n"
"\nExamples:\n" +
HelpExampleCli("getblock", "\"00000000000fd08c2fb661d2fcb0d49abb3a91e5f27082ce64feed3b4dede2e2\"") +
HelpExampleRpc("getblock", "\"00000000000fd08c2fb661d2fcb0d49abb3a91e5f27082ce64feed3b4dede2e2\""));
LOCK(cs_main);
std::string strHash = request.params[0].get_str();
uint256 hash(uint256S(strHash));
bool fVerbose = true;
if (request.params.size() > 1)
fVerbose = request.params[1].get_bool();
if (mapBlockIndex.count(hash) == 0)
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
CBlock block;
CBlockIndex* pblockindex = mapBlockIndex[hash];
if (!ReadBlockFromDisk(block, pblockindex))
throw JSONRPCError(RPC_INTERNAL_ERROR, "Can't read block from disk");
if (!fVerbose) {
CDataStream ssBlock(SER_NETWORK, PROTOCOL_VERSION);
ssBlock << block;
std::string strHex = HexStr(ssBlock.begin(), ssBlock.end());
return strHex;
}
return blockToJSON(block, pblockindex);
}
UniValue getblockheader(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
throw std::runtime_error(
"getblockheader \"blockhash\" ( verbose )\n"
"\nIf verbose is false, returns a string that is serialized, hex-encoded data for block 'hash' header.\n"
"If verbose is true, returns an Object with information about block <hash> header.\n"
"\nArguments:\n"
"1. \"blockhash\" (string, required) The block hash\n"
"2. verbose (boolean, optional, default=true) True for a json object, false for the hex encoded data\n"
"\nResult (for verbose = true):\n"
"{\n"
" \"version\" : n, (numeric) The block version\n"
" \"previousblockhash\" : \"hash\", (string) The hash of the previous block\n"
" \"merkleroot\" : \"xxxx\", (string) The merkle root\n"
" \"time\" : ttt, (numeric) The block time in seconds since epoch (Jan 1 1970 GMT)\n"
" \"mediantime\" : ttt, (numeric) The median block time in seconds since epoch (Jan 1 1970 GMT)\n"
" \"nonce\" : n, (numeric) The nonce\n"
" \"bits\" : \"1d00ffff\", (string) The bits\n"
" \"shield_pool_value\": (object) Block shield pool value\n"
" {\n"
" \"chainValue\": (numeric) Total value held by the Sapling circuit up to and including this block\n"
" \"valueDelta\": (numeric) Change in value held by the Sapling circuit over this block\n"
" }\n"
"}"
"}\n"
"\nResult (for verbose=false):\n"
"\"data\" (string) A string that is serialized, hex-encoded data for block 'hash' header.\n"
"\nExamples:\n" +
HelpExampleCli("getblockheader", "\"00000000000fd08c2fb661d2fcb0d49abb3a91e5f27082ce64feed3b4dede2e2\"") +
HelpExampleRpc("getblockheader", "\"00000000000fd08c2fb661d2fcb0d49abb3a91e5f27082ce64feed3b4dede2e2\""));
std::string strHash = request.params[0].get_str();
uint256 hash(uint256S(strHash));
bool fVerbose = true;
if (request.params.size() > 1)
fVerbose = request.params[1].get_bool();
if (mapBlockIndex.count(hash) == 0)
throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
CBlockIndex* pblockindex = mapBlockIndex[hash];
if (!fVerbose) {
CDataStream ssBlock(SER_NETWORK, PROTOCOL_VERSION);
ssBlock << pblockindex->GetBlockHeader();
std::string strHex = HexStr(ssBlock.begin(), ssBlock.end());
return strHex;
}
return blockheaderToJSON(pblockindex);
}
UniValue getsupplyinfo(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() > 1)
throw std::runtime_error(
"getsupplyinfo ( force_update )\n"
"\nIf force_update=false (default if no argument is given): return the last cached money supply"
"\n(sum of spendable transaction outputs) and the height of the chain when it was last updated"
"\n(it is updated periodically, whenever the chainstate is flushed)."
"\n"
"\nIf force_update=true: Flush the chainstate to disk and return the money supply updated to"
"\nthe current chain height.\n"
"\nArguments:\n"
"1. force_update (boolean, optional, default=false) flush chainstate to disk and update cache\n"
"\nResult:\n"
"{\n"
" \"updateheight\" : n, (numeric) The chain height when the transparent supply was updated\n"
" \"transparentsupply\" : n (numeric) The sum of all spendable transaction outputs at height updateheight\n"
" \"shieldsupply\": n (numeric) Chain tip shield pool value\n"
" \"totalsupply\": n (numeric) The sum of transparentsupply and shieldsupply\n"
"}\n"
"\nExamples:\n" +
HelpExampleCli("getsupplyinfo", "") + HelpExampleCli("getsupplyinfo", "true") +
HelpExampleRpc("getsupplyinfo", ""));
const bool fForceUpdate = request.params.size() > 0 ? request.params[0].get_bool() : false;
if (fForceUpdate) {
// Flush state to disk (which updates the cached supply)
FlushStateToDisk();
}
UniValue ret(UniValue::VOBJ);
const CAmount tSupply = MoneySupply.Get();
ret.pushKV("updateheight", MoneySupply.GetCacheHeight());
ret.pushKV("transparentsupply", ValueFromAmount(tSupply));
Optional<CAmount> shieldedPoolValue = WITH_LOCK(cs_main, return (chainActive.Tip() ? chainActive.Tip()->nChainSaplingValue : nullopt); );
ret.pushKV("shieldsupply", ValuePoolDesc(shieldedPoolValue, nullopt)["chainValue"]);
const CAmount totalSupply = tSupply + (shieldedPoolValue ? *shieldedPoolValue : 0);
ret.pushKV("totalsupply", ValueFromAmount(totalSupply));
return ret;
}
struct CCoinsStats
{
int nHeight{0};
uint256 hashBlock{UINT256_ZERO};
uint64_t nTransactions{0};
uint64_t nTransactionOutputs{0};
uint256 hashSerialized{UINT256_ZERO};
uint64_t nDiskSize{0};
CAmount nTotalAmount{0};
};
static void ApplyStats(CCoinsStats &stats, CHashWriter& ss, const uint256& hash, const std::map<uint32_t, Coin>& outputs)
{
assert(!outputs.empty());
ss << hash;
const Coin& coin = outputs.begin()->second;
ss << VARINT(coin.nHeight * 4 + (coin.fCoinBase ? 2u : 0u) + (coin.fCoinStake ? 1u : 0u));
stats.nTransactions++;
for (const auto& output : outputs) {
ss << VARINT(output.first + 1);
ss << output.second.out.scriptPubKey;
ss << VARINT_MODE(output.second.out.nValue, VarIntMode::NONNEGATIVE_SIGNED);
stats.nTransactionOutputs++;
stats.nTotalAmount += output.second.out.nValue;
}
ss << VARINT(0u);
}
//! Calculate statistics about the unspent transaction output set
static 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 = mapBlockIndex.find(stats.hashBlock)->second->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;
}
UniValue gettxoutsetinfo(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 0)
throw std::runtime_error(
"gettxoutsetinfo\n"
"\nReturns statistics about the unspent transaction output set.\n"
"Note this call may take some time.\n"
"\nResult:\n"
"{\n"
" \"height\":n, (numeric) The current block height (index)\n"
" \"bestblock\": \"hex\", (string) the best block hash hex\n"
" \"transactions\": n, (numeric) The number of transactions\n"
" \"txouts\": n, (numeric) The number of output transactions\n"
" \"hash_serialized_2\": \"hash\", (string) The serialized hash\n"
" \"disk_size\": n, (numeric) The estimated size of the chainstate on disk\n"
" \"total_amount\": x.xxx (numeric) The total amount\n"
"}\n"
"\nExamples:\n" +
HelpExampleCli("gettxoutsetinfo", "") + HelpExampleRpc("gettxoutsetinfo", ""));
UniValue ret(UniValue::VOBJ);
CCoinsStats stats;
FlushStateToDisk();
if (GetUTXOStats(pcoinsTip, stats)) {
ret.pushKV("height", (int64_t)stats.nHeight);
ret.pushKV("bestblock", stats.hashBlock.GetHex());
ret.pushKV("transactions", (int64_t)stats.nTransactions);
ret.pushKV("txouts", (int64_t)stats.nTransactionOutputs);
ret.pushKV("hash_serialized_2", stats.hashSerialized.GetHex());
ret.pushKV("total_amount", ValueFromAmount(stats.nTotalAmount));
ret.pushKV("disk_size", stats.nDiskSize);
}
return ret;
}
UniValue gettxout(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() < 2 || request.params.size() > 3)
throw std::runtime_error(
"gettxout \"txid\" n ( include_mempool )\n"
"\nReturns details about an unspent transaction output.\n"
"\nArguments:\n"
"1. \"txid\" (string, required) The transaction id\n"
"2. n (numeric, required) vout value\n"
"3. include_mempool (boolean, optional) Whether to included the mem pool\n"
"\nResult:\n"
"{\n"
" \"bestblock\" : \"hash\", (string) the block hash\n"
" \"confirmations\" : n, (numeric) The number of confirmations\n"
" \"value\" : x.xxx, (numeric) The transaction value in PIV\n"
" \"scriptPubKey\" : { (json object)\n"
" \"asm\" : \"code\", (string) \n"
" \"hex\" : \"hex\", (string) \n"
" \"reqSigs\" : n, (numeric) Number of required signatures\n"
" \"type\" : \"pubkeyhash\", (string) The type, eg pubkeyhash\n"
" \"addresses\" : [ (array of string) array of pivx addresses\n"
" \"pivxaddress\" (string) pivx address\n"
" ,...\n"
" ]\n"
" },\n"
" \"coinbase\" : true|false (boolean) Coinbase or not\n"
"}\n"
"\nExamples:\n"
"\nGet unspent transactions\n" +
HelpExampleCli("listunspent", "") +
"\nView the details\n" +
HelpExampleCli("gettxout", "\"txid\" 1") +
"\nAs a json rpc call\n" +
HelpExampleRpc("gettxout", "\"txid\", 1"));
LOCK(cs_main);
UniValue ret(UniValue::VOBJ);
std::string strHash = request.params[0].get_str();
uint256 hash(uint256S(strHash));
int n = request.params[1].get_int();
COutPoint out(hash, n);
bool fMempool = true;
if (request.params.size() > 2)
fMempool = request.params[2].get_bool();
Coin coin;
if (fMempool) {
LOCK(mempool.cs);
CCoinsViewMemPool view(pcoinsTip, mempool);
if (!view.GetCoin(out, coin) || mempool.isSpent(out)) {// TODO: filtering spent coins should be done by the CCoinsViewMemPool
return NullUniValue;
}
} else {
if (!pcoinsTip->GetCoin(out, coin)) {
return NullUniValue;
}
}
BlockMap::iterator it = mapBlockIndex.find(pcoinsTip->GetBestBlock());
CBlockIndex* pindex = it->second;
assert(pindex != nullptr);
ret.pushKV("bestblock", pindex->GetBlockHash().GetHex());
if (coin.nHeight == MEMPOOL_HEIGHT) {
ret.pushKV("confirmations", 0);
} else {
ret.pushKV("confirmations", (int64_t)(pindex->nHeight - coin.nHeight + 1));
}
ret.pushKV("value", ValueFromAmount(coin.out.nValue));
UniValue o(UniValue::VOBJ);
ScriptPubKeyToUniv(coin.out.scriptPubKey, o, true);
ret.pushKV("scriptPubKey", o);
ret.pushKV("coinbase", (bool)coin.fCoinBase);
return ret;
}
UniValue verifychain(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() > 1)
throw std::runtime_error(
"verifychain ( nblocks )\n"
"\nVerifies blockchain database.\n"
"\nArguments:\n"
"1. nblocks (numeric, optional, default=288, 0=all) The number of blocks to check.\n"
"\nResult:\n"
"true|false (boolean) Verified or not\n"
"\nExamples:\n" +
HelpExampleCli("verifychain", "") + HelpExampleRpc("verifychain", ""));
LOCK(cs_main);
int nCheckLevel = gArgs.GetArg("-checklevel", DEFAULT_CHECKLEVEL);
int nCheckDepth = gArgs.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS);
if (request.params.size() > 0)
nCheckDepth = request.params[0].get_int();
return CVerifyDB().VerifyDB(pcoinsTip, nCheckLevel, nCheckDepth);
}
/** Implementation of IsSuperMajority with better feedback */
static UniValue SoftForkMajorityDesc(int version, const CBlockIndex* pindex, const Consensus::Params& consensusParams)
{
UniValue rv(UniValue::VOBJ);
Consensus::UpgradeIndex idx;
switch(version) {
case 1:
case 2:
case 3:
idx = Consensus::BASE_NETWORK;
break;
case 4:
idx = Consensus::UPGRADE_ZC;
break;
case 5:
idx = Consensus::UPGRADE_BIP65;
break;
case 6:
idx = Consensus::UPGRADE_V3_4;
break;
case 7:
idx = Consensus::UPGRADE_V4_0;
break;
default:
rv.pushKV("status", false);
return rv;
}
rv.pushKV("status", pindex && consensusParams.NetworkUpgradeActive(pindex->nHeight, idx));
return rv;
}
static UniValue SoftForkDesc(const std::string &name, int version, const CBlockIndex* pindex)
{
const Consensus::Params& consensus = Params().GetConsensus();
UniValue rv(UniValue::VOBJ);
rv.pushKV("id", name);
rv.pushKV("version", version);
rv.pushKV("reject", SoftForkMajorityDesc(version, pindex, consensus));
return rv;
}
static UniValue NetworkUpgradeDesc(const Consensus::Params& consensusParams, Consensus::UpgradeIndex idx, int height)
{
UniValue rv(UniValue::VOBJ);
auto upgrade = NetworkUpgradeInfo[idx];
rv.pushKV("activationheight", consensusParams.vUpgrades[idx].nActivationHeight);
switch (NetworkUpgradeState(height, consensusParams, idx)) {
case UPGRADE_DISABLED: rv.pushKV("status", "disabled"); break;
case UPGRADE_PENDING: rv.pushKV("status", "pending"); break;
case UPGRADE_ACTIVE: rv.pushKV("status", "active"); break;
}
rv.pushKV("info", upgrade.strInfo);
return rv;
}
void NetworkUpgradeDescPushBack(
UniValue& networkUpgrades,
const Consensus::Params& consensusParams,
Consensus::UpgradeIndex idx,
int height)
{
// Network upgrades with an activation height of NO_ACTIVATION_HEIGHT are
// hidden. This is used when network upgrade implementations are merged
// without specifying the activation height.
if (consensusParams.vUpgrades[idx].nActivationHeight != Consensus::NetworkUpgrade::NO_ACTIVATION_HEIGHT) {
std::string name = NetworkUpgradeInfo[idx].strName;
std::replace(name.begin(), name.end(), '_', ' '); // Beautify the name
networkUpgrades.pushKV(name, NetworkUpgradeDesc(consensusParams, idx, height));
}
}
UniValue getblockchaininfo(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 0)
throw std::runtime_error(
"getblockchaininfo\n"
"Returns an object containing various state info regarding block chain processing.\n"
"\nResult:\n"
"{\n"
" \"chain\": \"xxxx\", (string) current network name (main, test, regtest)\n"
" \"blocks\": xxxxxx, (numeric) the current number of blocks processed in the server\n"
" \"headers\": xxxxxx, (numeric) the current number of headers we have validated\n"
" \"bestblockhash\": \"...\", (string) the hash of the currently best block\n"
" \"difficulty\": xxxxxx, (numeric) the current difficulty\n"
" \"verificationprogress\": xxxx, (numeric) estimate of verification progress [0..1]\n"
" \"chainwork\": \"xxxx\" (string) total amount of work in active chain, in hexadecimal\n"
" \"shield_pool_value\": { (object) Chain tip shield pool value\n"
" \"chainValue\": (numeric) Total value held by the Sapling circuit up to and including the chain tip\n"
" \"valueDelta\": (numeric) Change in value held by the Sapling circuit over the chain tip block\n"
" },\n"