665 lines
26 KiB
C++
665 lines
26 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 "amount.h"
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#include "chainparams.h"
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#include "core_io.h"
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#include "init.h"
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#include "net.h"
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#include "main.h"
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#include "miner.h"
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#include "pow.h"
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#include "rpcserver.h"
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#include "util.h"
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#ifdef ENABLE_WALLET
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#include "db.h"
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#include "wallet.h"
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#endif
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#include <stdint.h>
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#include <boost/assign/list_of.hpp>
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#include "json/json_spirit_utils.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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// Return average network hashes per second based on the last 'lookup' blocks,
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// or from the last difficulty change if 'lookup' is nonpositive.
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// If 'height' is nonnegative, compute the estimate at the time when a given block was found.
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Value GetNetworkHashPS(int lookup, int height) {
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CBlockIndex *pb = chainActive.Tip();
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if (height >= 0 && height < chainActive.Height())
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pb = chainActive[height];
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if (pb == NULL || !pb->nHeight)
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return 0;
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// If lookup is -1, then use blocks since last difficulty change.
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if (lookup <= 0)
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lookup = pb->nHeight % 2016 + 1;
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// If lookup is larger than chain, then set it to chain length.
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if (lookup > pb->nHeight)
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lookup = pb->nHeight;
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CBlockIndex *pb0 = pb;
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int64_t minTime = pb0->GetBlockTime();
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int64_t maxTime = minTime;
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for (int i = 0; i < lookup; i++) {
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pb0 = pb0->pprev;
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int64_t time = pb0->GetBlockTime();
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minTime = std::min(time, minTime);
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maxTime = std::max(time, maxTime);
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}
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// In case there's a situation where minTime == maxTime, we don't want a divide by zero exception.
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if (minTime == maxTime)
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return 0;
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uint256 workDiff = pb->nChainWork - pb0->nChainWork;
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int64_t timeDiff = maxTime - minTime;
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return (int64_t)(workDiff.getdouble() / timeDiff);
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}
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Value getnetworkhashps(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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"getnetworkhashps ( blocks height )\n"
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"\nReturns the estimated network hashes per second based on the last n blocks.\n"
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"Pass in [blocks] to override # of blocks, -1 specifies since last difficulty change.\n"
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"Pass in [height] to estimate the network speed at the time when a certain block was found.\n"
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"\nArguments:\n"
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"1. blocks (numeric, optional, default=120) The number of blocks, or -1 for blocks since last difficulty change.\n"
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"2. height (numeric, optional, default=-1) To estimate at the time of the given height.\n"
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"\nResult:\n"
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"x (numeric) Hashes per second estimated\n"
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"\nExamples:\n"
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+ HelpExampleCli("getnetworkhashps", "")
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+ HelpExampleRpc("getnetworkhashps", "")
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);
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return GetNetworkHashPS(params.size() > 0 ? params[0].get_int() : 120, params.size() > 1 ? params[1].get_int() : -1);
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}
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#ifdef ENABLE_WALLET
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Value getgenerate(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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"getgenerate\n"
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"\nReturn if the server is set to generate coins or not. The default is false.\n"
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"It is set with the command line argument -gen (or bitcoin.conf setting gen)\n"
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"It can also be set with the setgenerate call.\n"
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"\nResult\n"
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"true|false (boolean) If the server is set to generate coins or not\n"
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"\nExamples:\n"
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+ HelpExampleCli("getgenerate", "")
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+ HelpExampleRpc("getgenerate", "")
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);
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return GetBoolArg("-gen", false);
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}
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Value setgenerate(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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"setgenerate generate ( genproclimit )\n"
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"\nSet 'generate' true or false to turn generation on or off.\n"
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"Generation is limited to 'genproclimit' processors, -1 is unlimited.\n"
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"See the getgenerate call for the current setting.\n"
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"\nArguments:\n"
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"1. generate (boolean, required) Set to true to turn on generation, off to turn off.\n"
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"2. genproclimit (numeric, optional) Set the processor limit for when generation is on. Can be -1 for unlimited.\n"
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" Note: in -regtest mode, genproclimit controls how many blocks are generated immediately.\n"
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"\nExamples:\n"
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"\nSet the generation on with a limit of one processor\n"
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+ HelpExampleCli("setgenerate", "true 1") +
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"\nCheck the setting\n"
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+ HelpExampleCli("getgenerate", "") +
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"\nTurn off generation\n"
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+ HelpExampleCli("setgenerate", "false") +
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"\nUsing json rpc\n"
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+ HelpExampleRpc("setgenerate", "true, 1")
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);
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if (pwalletMain == NULL)
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throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found (disabled)");
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bool fGenerate = true;
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if (params.size() > 0)
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fGenerate = params[0].get_bool();
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int nGenProcLimit = -1;
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if (params.size() > 1)
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{
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nGenProcLimit = params[1].get_int();
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if (nGenProcLimit == 0)
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fGenerate = false;
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}
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// -regtest mode: don't return until nGenProcLimit blocks are generated
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if (fGenerate && Params().MineBlocksOnDemand())
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{
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int nHeightStart = 0;
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int nHeightEnd = 0;
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int nHeight = 0;
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int nGenerate = (nGenProcLimit > 0 ? nGenProcLimit : 1);
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{ // Don't keep cs_main locked
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LOCK(cs_main);
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nHeightStart = chainActive.Height();
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nHeight = nHeightStart;
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nHeightEnd = nHeightStart+nGenerate;
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}
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int nHeightLast = -1;
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while (nHeight < nHeightEnd)
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{
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if (nHeightLast != nHeight)
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{
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nHeightLast = nHeight;
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GenerateBitcoins(fGenerate, pwalletMain, 1);
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}
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MilliSleep(1);
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{ // Don't keep cs_main locked
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LOCK(cs_main);
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nHeight = chainActive.Height();
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}
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}
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}
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else // Not -regtest: start generate thread, return immediately
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{
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mapArgs["-gen"] = (fGenerate ? "1" : "0");
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mapArgs ["-genproclimit"] = itostr(nGenProcLimit);
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GenerateBitcoins(fGenerate, pwalletMain, nGenProcLimit);
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}
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return Value::null;
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}
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Value gethashespersec(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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"gethashespersec\n"
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"\nReturns a recent hashes per second performance measurement while generating.\n"
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"See the getgenerate and setgenerate calls to turn generation on and off.\n"
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"\nResult:\n"
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"n (numeric) The recent hashes per second when generation is on (will return 0 if generation is off)\n"
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"\nExamples:\n"
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+ HelpExampleCli("gethashespersec", "")
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+ HelpExampleRpc("gethashespersec", "")
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);
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if (GetTimeMillis() - nHPSTimerStart > 8000)
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return (int64_t)0;
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return (int64_t)dHashesPerSec;
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}
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#endif
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Value getmininginfo(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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"getmininginfo\n"
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"\nReturns a json object containing mining-related information."
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"\nResult:\n"
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"{\n"
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" \"blocks\": nnn, (numeric) The current block\n"
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" \"currentblocksize\": nnn, (numeric) The last block size\n"
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" \"currentblocktx\": nnn, (numeric) The last block transaction\n"
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" \"difficulty\": xxx.xxxxx (numeric) The current difficulty\n"
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" \"errors\": \"...\" (string) Current errors\n"
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" \"generate\": true|false (boolean) If the generation is on or off (see getgenerate or setgenerate calls)\n"
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" \"genproclimit\": n (numeric) The processor limit for generation. -1 if no generation. (see getgenerate or setgenerate calls)\n"
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" \"hashespersec\": n (numeric) The hashes per second of the generation, or 0 if no generation.\n"
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" \"pooledtx\": n (numeric) The size of the mem pool\n"
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" \"testnet\": true|false (boolean) If using testnet or not\n"
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" \"chain\": \"xxxx\", (string) current network name as defined in BIP70 (main, test, regtest)\n"
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"}\n"
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"\nExamples:\n"
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+ HelpExampleCli("getmininginfo", "")
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+ HelpExampleRpc("getmininginfo", "")
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);
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Object obj;
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obj.push_back(Pair("blocks", (int)chainActive.Height()));
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obj.push_back(Pair("currentblocksize", (uint64_t)nLastBlockSize));
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obj.push_back(Pair("currentblocktx", (uint64_t)nLastBlockTx));
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obj.push_back(Pair("difficulty", (double)GetDifficulty()));
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obj.push_back(Pair("errors", GetWarnings("statusbar")));
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obj.push_back(Pair("genproclimit", (int)GetArg("-genproclimit", -1)));
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obj.push_back(Pair("networkhashps", getnetworkhashps(params, false)));
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obj.push_back(Pair("pooledtx", (uint64_t)mempool.size()));
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obj.push_back(Pair("testnet", Params().TestnetToBeDeprecatedFieldRPC()));
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obj.push_back(Pair("chain", Params().NetworkIDString()));
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#ifdef ENABLE_WALLET
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obj.push_back(Pair("generate", getgenerate(params, false)));
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obj.push_back(Pair("hashespersec", gethashespersec(params, false)));
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#endif
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return obj;
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}
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Value prioritisetransaction(const Array& params, bool fHelp)
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{
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if (fHelp || params.size() != 3)
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throw runtime_error(
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"prioritisetransaction <txid> <priority delta> <fee delta>\n"
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"Accepts the transaction into mined blocks at a higher (or lower) priority\n"
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"\nArguments:\n"
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"1. \"txid\" (string, required) The transaction id.\n"
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"2. priority delta (numeric, required) The priority to add or subtract.\n"
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" The transaction selection algorithm considers the tx as it would have a higher priority.\n"
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" (priority of a transaction is calculated: coinage * value_in_satoshis / txsize) \n"
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"3. fee delta (numeric, required) The absolute fee value to add or subtract in bitcoin.\n"
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" The fee is not actually paid, only the algorithm for selecting transactions into a block\n"
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" considers the transaction as it would have paid a higher (or lower) fee.\n"
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"\nResult\n"
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"true (boolean) Returns true\n"
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"\nExamples:\n"
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+ HelpExampleCli("prioritisetransaction", "\"txid\" 0.0 0.00010000")
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+ HelpExampleRpc("prioritisetransaction", "\"txid\", 0.0, 0.00010000")
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);
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uint256 hash;
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hash.SetHex(params[0].get_str());
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CAmount nAmount = 0;
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if (params[2].get_real() != 0.0)
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nAmount = AmountFromValue(params[2]);
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mempool.PrioritiseTransaction(hash, params[0].get_str(), params[1].get_real(), nAmount);
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return true;
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}
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Value getblocktemplate(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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"getblocktemplate ( \"jsonrequestobject\" )\n"
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"\nIf the request parameters include a 'mode' key, that is used to explicitly select between the default 'template' request or a 'proposal'.\n"
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"It returns data needed to construct a block to work on.\n"
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"See https://en.bitcoin.it/wiki/BIP_0022 for full specification.\n"
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"\nArguments:\n"
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"1. \"jsonrequestobject\" (string, optional) A json object in the following spec\n"
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" {\n"
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" \"mode\":\"template\" (string, optional) This must be set to \"template\" or omitted\n"
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" \"capabilities\":[ (array, optional) A list of strings\n"
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" \"support\" (string) client side supported feature, 'longpoll', 'coinbasetxn', 'coinbasevalue', 'proposal', 'serverlist', 'workid'\n"
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" ,...\n"
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" ]\n"
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" }\n"
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"\n"
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"\nResult:\n"
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"{\n"
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" \"version\" : n, (numeric) The block version\n"
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" \"previousblockhash\" : \"xxxx\", (string) The hash of current highest block\n"
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" \"transactions\" : [ (array) contents of non-coinbase transactions that should be included in the next block\n"
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" {\n"
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" \"data\" : \"xxxx\", (string) transaction data encoded in hexadecimal (byte-for-byte)\n"
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" \"hash\" : \"xxxx\", (string) hash/id encoded in little-endian hexadecimal\n"
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" \"depends\" : [ (array) array of numbers \n"
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" n (numeric) transactions before this one (by 1-based index in 'transactions' list) that must be present in the final block if this one is\n"
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" ,...\n"
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" ],\n"
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" \"fee\": n, (numeric) difference in value between transaction inputs and outputs (in Satoshis); for coinbase transactions, this is a negative Number of the total collected block fees (ie, not including the block subsidy); if key is not present, fee is unknown and clients MUST NOT assume there isn't one\n"
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" \"sigops\" : n, (numeric) total number of SigOps, as counted for purposes of block limits; if key is not present, sigop count is unknown and clients MUST NOT assume there aren't any\n"
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" \"required\" : true|false (boolean) if provided and true, this transaction must be in the final block\n"
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" }\n"
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" ,...\n"
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" ],\n"
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" \"coinbaseaux\" : { (json object) data that should be included in the coinbase's scriptSig content\n"
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" \"flags\" : \"flags\" (string) \n"
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" },\n"
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" \"coinbasevalue\" : n, (numeric) maximum allowable input to coinbase transaction, including the generation award and transaction fees (in Satoshis)\n"
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" \"coinbasetxn\" : { ... }, (json object) information for coinbase transaction\n"
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" \"target\" : \"xxxx\", (string) The hash target\n"
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" \"mintime\" : xxx, (numeric) The minimum timestamp appropriate for next block time in seconds since epoch (Jan 1 1970 GMT)\n"
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" \"mutable\" : [ (array of string) list of ways the block template may be changed \n"
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" \"value\" (string) A way the block template may be changed, e.g. 'time', 'transactions', 'prevblock'\n"
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" ,...\n"
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" ],\n"
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" \"noncerange\" : \"00000000ffffffff\", (string) A range of valid nonces\n"
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" \"sigoplimit\" : n, (numeric) limit of sigops in blocks\n"
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" \"sizelimit\" : n, (numeric) limit of block size\n"
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" \"curtime\" : ttt, (numeric) current timestamp in seconds since epoch (Jan 1 1970 GMT)\n"
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" \"bits\" : \"xxx\", (string) compressed target of next block\n"
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" \"height\" : n (numeric) The height of the next block\n"
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"}\n"
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"\nExamples:\n"
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+ HelpExampleCli("getblocktemplate", "")
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+ HelpExampleRpc("getblocktemplate", "")
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);
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std::string strMode = "template";
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Value lpval = Value::null;
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if (params.size() > 0)
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{
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const Object& oparam = params[0].get_obj();
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const Value& modeval = find_value(oparam, "mode");
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if (modeval.type() == str_type)
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strMode = modeval.get_str();
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else if (modeval.type() == null_type)
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{
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/* Do nothing */
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}
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else
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throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode");
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lpval = find_value(oparam, "longpollid");
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}
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if (strMode != "template")
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throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid mode");
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if (vNodes.empty())
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throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "Bitcoin is not connected!");
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if (IsInitialBlockDownload())
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throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD, "Bitcoin is downloading blocks...");
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static unsigned int nTransactionsUpdatedLast;
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if (lpval.type() != null_type)
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{
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// Wait to respond until either the best block changes, OR a minute has passed and there are more transactions
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uint256 hashWatchedChain;
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boost::system_time checktxtime;
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unsigned int nTransactionsUpdatedLastLP;
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if (lpval.type() == str_type)
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{
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// Format: <hashBestChain><nTransactionsUpdatedLast>
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std::string lpstr = lpval.get_str();
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hashWatchedChain.SetHex(lpstr.substr(0, 64));
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nTransactionsUpdatedLastLP = atoi64(lpstr.substr(64));
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}
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else
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{
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// NOTE: Spec does not specify behaviour for non-string longpollid, but this makes testing easier
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hashWatchedChain = chainActive.Tip()->GetBlockHash();
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nTransactionsUpdatedLastLP = nTransactionsUpdatedLast;
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}
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// Release the wallet and main lock while waiting
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#ifdef ENABLE_WALLET
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if(pwalletMain)
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LEAVE_CRITICAL_SECTION(pwalletMain->cs_wallet);
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#endif
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LEAVE_CRITICAL_SECTION(cs_main);
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{
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checktxtime = boost::get_system_time() + boost::posix_time::minutes(1);
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boost::unique_lock<boost::mutex> lock(csBestBlock);
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while (chainActive.Tip()->GetBlockHash() == hashWatchedChain && IsRPCRunning())
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{
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if (!cvBlockChange.timed_wait(lock, checktxtime))
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{
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// Timeout: Check transactions for update
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if (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLastLP)
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break;
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checktxtime += boost::posix_time::seconds(10);
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}
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}
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}
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ENTER_CRITICAL_SECTION(cs_main);
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#ifdef ENABLE_WALLET
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if(pwalletMain)
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ENTER_CRITICAL_SECTION(pwalletMain->cs_wallet);
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#endif
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if (!IsRPCRunning())
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throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "Shutting down");
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// TODO: Maybe recheck connections/IBD and (if something wrong) send an expires-immediately template to stop miners?
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}
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// Update block
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static CBlockIndex* pindexPrev;
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static int64_t nStart;
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static CBlockTemplate* pblocktemplate;
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if (pindexPrev != chainActive.Tip() ||
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(mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast && GetTime() - nStart > 5))
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{
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// Clear pindexPrev so future calls make a new block, despite any failures from here on
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pindexPrev = NULL;
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// Store the pindexBest used before CreateNewBlock, to avoid races
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nTransactionsUpdatedLast = mempool.GetTransactionsUpdated();
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CBlockIndex* pindexPrevNew = chainActive.Tip();
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nStart = GetTime();
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// Create new block
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if(pblocktemplate)
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{
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delete pblocktemplate;
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|
pblocktemplate = NULL;
|
|
}
|
|
CScript scriptDummy = CScript() << OP_TRUE;
|
|
pblocktemplate = CreateNewBlock(scriptDummy);
|
|
if (!pblocktemplate)
|
|
throw JSONRPCError(RPC_OUT_OF_MEMORY, "Out of memory");
|
|
|
|
// Need to update only after we know CreateNewBlock succeeded
|
|
pindexPrev = pindexPrevNew;
|
|
}
|
|
CBlock* pblock = &pblocktemplate->block; // pointer for convenience
|
|
|
|
// Update nTime
|
|
UpdateTime(pblock, pindexPrev);
|
|
pblock->nNonce = 0;
|
|
|
|
Array transactions;
|
|
map<uint256, int64_t> setTxIndex;
|
|
int i = 0;
|
|
BOOST_FOREACH (CTransaction& tx, pblock->vtx)
|
|
{
|
|
uint256 txHash = tx.GetHash();
|
|
setTxIndex[txHash] = i++;
|
|
|
|
if (tx.IsCoinBase())
|
|
continue;
|
|
|
|
Object entry;
|
|
|
|
entry.push_back(Pair("data", EncodeHexTx(tx)));
|
|
|
|
entry.push_back(Pair("hash", txHash.GetHex()));
|
|
|
|
Array deps;
|
|
BOOST_FOREACH (const CTxIn &in, tx.vin)
|
|
{
|
|
if (setTxIndex.count(in.prevout.hash))
|
|
deps.push_back(setTxIndex[in.prevout.hash]);
|
|
}
|
|
entry.push_back(Pair("depends", deps));
|
|
|
|
int index_in_template = i - 1;
|
|
entry.push_back(Pair("fee", pblocktemplate->vTxFees[index_in_template]));
|
|
entry.push_back(Pair("sigops", pblocktemplate->vTxSigOps[index_in_template]));
|
|
|
|
transactions.push_back(entry);
|
|
}
|
|
|
|
Object aux;
|
|
aux.push_back(Pair("flags", HexStr(COINBASE_FLAGS.begin(), COINBASE_FLAGS.end())));
|
|
|
|
uint256 hashTarget = uint256().SetCompact(pblock->nBits);
|
|
|
|
static Array aMutable;
|
|
if (aMutable.empty())
|
|
{
|
|
aMutable.push_back("time");
|
|
aMutable.push_back("transactions");
|
|
aMutable.push_back("prevblock");
|
|
}
|
|
|
|
Object result;
|
|
result.push_back(Pair("version", pblock->nVersion));
|
|
result.push_back(Pair("previousblockhash", pblock->hashPrevBlock.GetHex()));
|
|
result.push_back(Pair("transactions", transactions));
|
|
result.push_back(Pair("coinbaseaux", aux));
|
|
result.push_back(Pair("coinbasevalue", (int64_t)pblock->vtx[0].vout[0].nValue));
|
|
result.push_back(Pair("longpollid", chainActive.Tip()->GetBlockHash().GetHex() + i64tostr(nTransactionsUpdatedLast)));
|
|
result.push_back(Pair("target", hashTarget.GetHex()));
|
|
result.push_back(Pair("mintime", (int64_t)pindexPrev->GetMedianTimePast()+1));
|
|
result.push_back(Pair("mutable", aMutable));
|
|
result.push_back(Pair("noncerange", "00000000ffffffff"));
|
|
result.push_back(Pair("sigoplimit", (int64_t)MAX_BLOCK_SIGOPS));
|
|
result.push_back(Pair("sizelimit", (int64_t)MAX_BLOCK_SIZE));
|
|
result.push_back(Pair("curtime", pblock->GetBlockTime()));
|
|
result.push_back(Pair("bits", strprintf("%08x", pblock->nBits)));
|
|
result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1)));
|
|
|
|
return result;
|
|
}
|
|
|
|
class submitblock_StateCatcher : public CValidationInterface
|
|
{
|
|
public:
|
|
uint256 hash;
|
|
bool found;
|
|
CValidationState state;
|
|
|
|
submitblock_StateCatcher(const uint256 &hashIn) : hash(hashIn), found(false), state() {};
|
|
|
|
protected:
|
|
virtual void BlockChecked(const CBlock& block, const CValidationState& stateIn) {
|
|
if (block.GetHash() != hash)
|
|
return;
|
|
found = true;
|
|
state = stateIn;
|
|
};
|
|
};
|
|
|
|
Value submitblock(const Array& params, bool fHelp)
|
|
{
|
|
if (fHelp || params.size() < 1 || params.size() > 2)
|
|
throw runtime_error(
|
|
"submitblock \"hexdata\" ( \"jsonparametersobject\" )\n"
|
|
"\nAttempts to submit new block to network.\n"
|
|
"The 'jsonparametersobject' parameter is currently ignored.\n"
|
|
"See https://en.bitcoin.it/wiki/BIP_0022 for full specification.\n"
|
|
|
|
"\nArguments\n"
|
|
"1. \"hexdata\" (string, required) the hex-encoded block data to submit\n"
|
|
"2. \"jsonparametersobject\" (string, optional) object of optional parameters\n"
|
|
" {\n"
|
|
" \"workid\" : \"id\" (string, optional) if the server provided a workid, it MUST be included with submissions\n"
|
|
" }\n"
|
|
"\nResult:\n"
|
|
"\nExamples:\n"
|
|
+ HelpExampleCli("submitblock", "\"mydata\"")
|
|
+ HelpExampleRpc("submitblock", "\"mydata\"")
|
|
);
|
|
|
|
vector<unsigned char> blockData(ParseHex(params[0].get_str()));
|
|
CDataStream ssBlock(blockData, SER_NETWORK, PROTOCOL_VERSION);
|
|
CBlock pblock;
|
|
try {
|
|
ssBlock >> pblock;
|
|
}
|
|
catch (const std::exception &) {
|
|
throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "Block decode failed");
|
|
}
|
|
|
|
CValidationState state;
|
|
submitblock_StateCatcher sc(pblock.GetHash());
|
|
RegisterValidationInterface(&sc);
|
|
bool fAccepted = ProcessNewBlock(state, NULL, &pblock);
|
|
UnregisterValidationInterface(&sc);
|
|
if (fAccepted)
|
|
{
|
|
if (!sc.found)
|
|
return "inconclusive";
|
|
state = sc.state;
|
|
}
|
|
if (state.IsError())
|
|
{
|
|
std::string strRejectReason = state.GetRejectReason();
|
|
throw JSONRPCError(RPC_VERIFY_ERROR, strRejectReason);
|
|
}
|
|
if (state.IsInvalid())
|
|
{
|
|
std::string strRejectReason = state.GetRejectReason();
|
|
if (strRejectReason.empty())
|
|
return "rejected";
|
|
return strRejectReason;
|
|
}
|
|
|
|
return Value::null;
|
|
}
|
|
|
|
Value estimatefee(const Array& params, bool fHelp)
|
|
{
|
|
if (fHelp || params.size() != 1)
|
|
throw runtime_error(
|
|
"estimatefee nblocks\n"
|
|
"\nEstimates the approximate fee per kilobyte\n"
|
|
"needed for a transaction to get confirmed\n"
|
|
"within nblocks blocks.\n"
|
|
"\nArguments:\n"
|
|
"1. nblocks (numeric)\n"
|
|
"\nResult:\n"
|
|
"n : (numeric) estimated fee-per-kilobyte\n"
|
|
"\n"
|
|
"-1.0 is returned if not enough transactions and\n"
|
|
"blocks have been observed to make an estimate.\n"
|
|
"\nExample:\n"
|
|
+ HelpExampleCli("estimatefee", "6")
|
|
);
|
|
|
|
RPCTypeCheck(params, boost::assign::list_of(int_type));
|
|
|
|
int nBlocks = params[0].get_int();
|
|
if (nBlocks < 1)
|
|
nBlocks = 1;
|
|
|
|
CFeeRate feeRate = mempool.estimateFee(nBlocks);
|
|
if (feeRate == CFeeRate(0))
|
|
return -1.0;
|
|
|
|
return ValueFromAmount(feeRate.GetFeePerK());
|
|
}
|
|
|
|
Value estimatepriority(const Array& params, bool fHelp)
|
|
{
|
|
if (fHelp || params.size() != 1)
|
|
throw runtime_error(
|
|
"estimatepriority nblocks\n"
|
|
"\nEstimates the approximate priority\n"
|
|
"a zero-fee transaction needs to get confirmed\n"
|
|
"within nblocks blocks.\n"
|
|
"\nArguments:\n"
|
|
"1. nblocks (numeric)\n"
|
|
"\nResult:\n"
|
|
"n : (numeric) estimated priority\n"
|
|
"\n"
|
|
"-1.0 is returned if not enough transactions and\n"
|
|
"blocks have been observed to make an estimate.\n"
|
|
"\nExample:\n"
|
|
+ HelpExampleCli("estimatepriority", "6")
|
|
);
|
|
|
|
RPCTypeCheck(params, boost::assign::list_of(int_type));
|
|
|
|
int nBlocks = params[0].get_int();
|
|
if (nBlocks < 1)
|
|
nBlocks = 1;
|
|
|
|
return mempool.estimatePriority(nBlocks);
|
|
}
|