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-rw-r--r--src/node/mempool_args.cpp99
-rw-r--r--src/node/mempool_args.h27
2 files changed, 126 insertions, 0 deletions
diff --git a/src/node/mempool_args.cpp b/src/node/mempool_args.cpp
new file mode 100644
index 0000000000..60993f1d8d
--- /dev/null
+++ b/src/node/mempool_args.cpp
@@ -0,0 +1,99 @@
+// Copyright (c) 2022 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <node/mempool_args.h>
+
+#include <kernel/mempool_limits.h>
+#include <kernel/mempool_options.h>
+
+#include <chainparams.h>
+#include <consensus/amount.h>
+#include <logging.h>
+#include <policy/feerate.h>
+#include <policy/policy.h>
+#include <tinyformat.h>
+#include <util/error.h>
+#include <util/moneystr.h>
+#include <util/system.h>
+#include <util/translation.h>
+
+#include <chrono>
+#include <memory>
+
+using kernel::MemPoolLimits;
+using kernel::MemPoolOptions;
+
+namespace {
+void ApplyArgsManOptions(const ArgsManager& argsman, MemPoolLimits& mempool_limits)
+{
+ mempool_limits.ancestor_count = argsman.GetIntArg("-limitancestorcount", mempool_limits.ancestor_count);
+
+ if (auto vkb = argsman.GetIntArg("-limitancestorsize")) mempool_limits.ancestor_size_vbytes = *vkb * 1'000;
+
+ mempool_limits.descendant_count = argsman.GetIntArg("-limitdescendantcount", mempool_limits.descendant_count);
+
+ if (auto vkb = argsman.GetIntArg("-limitdescendantsize")) mempool_limits.descendant_size_vbytes = *vkb * 1'000;
+}
+}
+
+std::optional<bilingual_str> ApplyArgsManOptions(const ArgsManager& argsman, const CChainParams& chainparams, MemPoolOptions& mempool_opts)
+{
+ mempool_opts.check_ratio = argsman.GetIntArg("-checkmempool", mempool_opts.check_ratio);
+
+ if (auto mb = argsman.GetIntArg("-maxmempool")) mempool_opts.max_size_bytes = *mb * 1'000'000;
+
+ if (auto hours = argsman.GetIntArg("-mempoolexpiry")) mempool_opts.expiry = std::chrono::hours{*hours};
+
+ // incremental relay fee sets the minimum feerate increase necessary for BIP 125 replacement in the mempool
+ // and the amount the mempool min fee increases above the feerate of txs evicted due to mempool limiting.
+ if (argsman.IsArgSet("-incrementalrelayfee")) {
+ if (std::optional<CAmount> inc_relay_fee = ParseMoney(argsman.GetArg("-incrementalrelayfee", ""))) {
+ mempool_opts.incremental_relay_feerate = CFeeRate{inc_relay_fee.value()};
+ } else {
+ return AmountErrMsg("incrementalrelayfee", argsman.GetArg("-incrementalrelayfee", ""));
+ }
+ }
+
+ if (argsman.IsArgSet("-minrelaytxfee")) {
+ if (std::optional<CAmount> min_relay_feerate = ParseMoney(argsman.GetArg("-minrelaytxfee", ""))) {
+ // High fee check is done afterward in CWallet::Create()
+ mempool_opts.min_relay_feerate = CFeeRate{min_relay_feerate.value()};
+ } else {
+ return AmountErrMsg("minrelaytxfee", argsman.GetArg("-minrelaytxfee", ""));
+ }
+ } else if (mempool_opts.incremental_relay_feerate > mempool_opts.min_relay_feerate) {
+ // Allow only setting incremental fee to control both
+ mempool_opts.min_relay_feerate = mempool_opts.incremental_relay_feerate;
+ LogPrintf("Increasing minrelaytxfee to %s to match incrementalrelayfee\n", mempool_opts.min_relay_feerate.ToString());
+ }
+
+ // Feerate used to define dust. Shouldn't be changed lightly as old
+ // implementations may inadvertently create non-standard transactions
+ if (argsman.IsArgSet("-dustrelayfee")) {
+ if (std::optional<CAmount> parsed = ParseMoney(argsman.GetArg("-dustrelayfee", ""))) {
+ mempool_opts.dust_relay_feerate = CFeeRate{parsed.value()};
+ } else {
+ return AmountErrMsg("dustrelayfee", argsman.GetArg("-dustrelayfee", ""));
+ }
+ }
+
+ mempool_opts.permit_bare_multisig = argsman.GetBoolArg("-permitbaremultisig", DEFAULT_PERMIT_BAREMULTISIG);
+
+ if (argsman.GetBoolArg("-datacarrier", DEFAULT_ACCEPT_DATACARRIER)) {
+ mempool_opts.max_datacarrier_bytes = argsman.GetIntArg("-datacarriersize", MAX_OP_RETURN_RELAY);
+ } else {
+ mempool_opts.max_datacarrier_bytes = std::nullopt;
+ }
+
+ mempool_opts.require_standard = !argsman.GetBoolArg("-acceptnonstdtxn", !chainparams.RequireStandard());
+ if (!chainparams.IsTestChain() && !mempool_opts.require_standard) {
+ return strprintf(Untranslated("acceptnonstdtxn is not currently supported for %s chain"), chainparams.NetworkIDString());
+ }
+
+ mempool_opts.full_rbf = argsman.GetBoolArg("-mempoolfullrbf", mempool_opts.full_rbf);
+
+ ApplyArgsManOptions(argsman, mempool_opts.limits);
+
+ return std::nullopt;
+}
diff --git a/src/node/mempool_args.h b/src/node/mempool_args.h
new file mode 100644
index 0000000000..52d8b4f265
--- /dev/null
+++ b/src/node/mempool_args.h
@@ -0,0 +1,27 @@
+// Copyright (c) 2022 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_NODE_MEMPOOL_ARGS_H
+#define BITCOIN_NODE_MEMPOOL_ARGS_H
+
+#include <optional>
+
+class ArgsManager;
+class CChainParams;
+struct bilingual_str;
+namespace kernel {
+struct MemPoolOptions;
+};
+
+/**
+ * Overlay the options set in \p argsman on top of corresponding members in \p mempool_opts.
+ * Returns an error if one was encountered.
+ *
+ * @param[in] argsman The ArgsManager in which to check set options.
+ * @param[in,out] mempool_opts The MemPoolOptions to modify according to \p argsman.
+ */
+[[nodiscard]] std::optional<bilingual_str> ApplyArgsManOptions(const ArgsManager& argsman, const CChainParams& chainparams, kernel::MemPoolOptions& mempool_opts);
+
+
+#endif // BITCOIN_NODE_MEMPOOL_ARGS_H