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v29.4-roots.4 · Commit 2: [PATCH 02/37] runtime: preserve shared operator controls

src/stats/rpc_stats.cpp

Before: /dev/null · After: src/stats/rpc_stats.cpp

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src/stats/rpc_stats.cpp ADDED
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+ // Copyright (c) 2016 The Bitcoin Core developers
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+ // Distributed under the MIT software license, see the accompanying
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+ // file COPYING or http://www.opensource.org/licenses/mit-license.php.
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+
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+ #include <rpc/server.h>
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+ #include <rpc/util.h>
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+ #include <stats/stats.h>
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+ #include <util/strencodings.h>
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+
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+ #include <stdint.h>
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+
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+ #include <univalue.h>
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+
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+ static RPCHelpMan getmempoolstats()
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+ {
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+ return RPCHelpMan{"getmempoolstats",
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+ "\nReturns the collected mempool statistics (non-linear non-interpolated samples).\n",
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+ {},
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+ RPCResult{
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+ RPCResult::Type::OBJ, "", "",
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+ {
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+ {RPCResult::Type::NUM_TIME, "time_from", "Timestamp, first sample"},
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+ {RPCResult::Type::NUM_TIME, "time_to", "Timestamp, last sample"},
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+ {RPCResult::Type::ARR, "samples", "",
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+ {
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+ {RPCResult::Type::ARR_FIXED, "", "",
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+ {
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+ {RPCResult::Type::NUM, "", "Sample time in seconds (relative to other sample times only)"},
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+ {RPCResult::Type::NUM, "", "Number of transactions in the memory pool"},
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+ {RPCResult::Type::NUM, "", "Memory usage by memory pool"},
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+ {RPCResult::Type::NUM, "", "Minimum fee per kB"},
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+ }},
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+ }},
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+ }},
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+ RPCExamples{
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+ HelpExampleCli("getmempoolstats", "")
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+ + HelpExampleRpc("getmempoolstats", "")
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+ },
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+ [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
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+ {
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+ // get stats from the core stats model
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+ uint64_t timeFrom = 0;
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+ uint64_t timeTo = 0;
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+ mempoolSamples_t samples = CStats::DefaultStats()->mempoolGetValuesInRange(timeFrom, timeTo);
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+
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+ // use "flat" json encoding for performance reasons
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+ UniValue samplesObj(UniValue::VARR);
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+ for (struct CStatsMempoolSample& sample : samples) {
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+ UniValue singleSample(UniValue::VARR);
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+ singleSample.push_back(UniValue((uint64_t)sample.m_time_delta));
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+ singleSample.push_back(UniValue(sample.m_tx_count));
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+ singleSample.push_back(UniValue(sample.m_dyn_mem_usage));
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+ singleSample.push_back(UniValue(sample.m_min_fee_per_k));
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+ samplesObj.push_back(singleSample);
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+ }
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+
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+ UniValue result(UniValue::VOBJ);
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+ result.pushKV("time_from", timeFrom);
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+ result.pushKV("time_to", timeTo);
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+ result.pushKV("samples", samplesObj);
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+
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+ return result;
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+ },
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+ };
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+ }
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+
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+ void RegisterStatsRPCCommands(CRPCTable& t)
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+ {
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+ // clang-format off
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+ static const CRPCCommand commands[] =
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+ { // category actor (function)
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+ // --------------------- ------------------------
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+ { "stats", &getmempoolstats, },
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+ };
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+ // clang-format on
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+ for (const auto& c : commands) {
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+ t.appendCommand(c.name, &c);
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+ }
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+ }