testing malloc trim

Amendments activated for more than 2 years can be retired. This change retires the fixTrustLinesToSelf amendment.

include/xrpl/basics/TaggedCache.ipp

@@ -4,6 +4,10 @@
 #include <xrpl/basics/IntrusivePointer.ipp>
 #include <xrpl/basics/TaggedCache.h>
 
+#ifdef __GLIBC__
+#include <malloc.h>
+#endif
+
 namespace ripple {
 
 template <
@@ -326,6 +330,10 @@ TaggedCache<
                std::chrono::steady_clock::now() - start)
                .count()
         << "ms";
+
+#ifdef __GLIBC__
+    (void)malloc_trim(0);
+#endif
 }
 
 template <

include/xrpl/protocol/detail/features.macro

@@ -62,7 +62,6 @@ XRPL_FIX    (UniversalNumber,            Supported::yes, VoteBehavior::DefaultNo
 XRPL_FEATURE(XRPFees,                    Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(DisallowIncoming,           Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FIX    (RemoveNFTokenAutoTrustLine, Supported::yes, VoteBehavior::DefaultYes)
-XRPL_FIX    (TrustLinesToSelf,           Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(ExpandedSignerList,         Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(CheckCashMakesTrustLine,    Supported::yes, VoteBehavior::DefaultNo)
 XRPL_FEATURE(FlowSortStrands,            Supported::yes, VoteBehavior::DefaultYes)
@@ -119,6 +118,7 @@ XRPL_RETIRE(fixReducedOffersV1)
 XRPL_RETIRE(fixRmSmallIncreasedQOffers)
 XRPL_RETIRE(fixSTAmountCanonicalize)
 XRPL_RETIRE(fixTakerDryOfferRemoval)
+XRPL_RETIRE(fixTrustLinesToSelf)
 XRPL_RETIRE(CryptoConditions)
 XRPL_RETIRE(Escrow)
 XRPL_RETIRE(EnforceInvariants)

src/test/rpc/Feature_test.cpp

@@ -121,7 +121,8 @@ class Feature_test : public beast::unit_test::suite
         // Test a random sampling of the variables. If any of these get retired
         // or removed, swap out for any other feature.
         BEAST_EXPECT(
-            featureToName(fixTrustLinesToSelf) == "fixTrustLinesToSelf");
+            featureToName(fixRemoveNFTokenAutoTrustLine) ==
+            "fixRemoveNFTokenAutoTrustLine");
         BEAST_EXPECT(featureToName(featureFlow) == "Flow");
         BEAST_EXPECT(featureToName(featureNegativeUNL) == "NegativeUNL");
         BEAST_EXPECT(

src/xrpld/app/tx/detail/Change.cpp

@@ -147,88 +147,6 @@ Change::preCompute()
         account_ == beast::zero, "ripple::Change::preCompute : zero account");
 }
 
-void
-Change::activateTrustLinesToSelfFix()
-{
-    JLOG(j_.warn()) << "fixTrustLinesToSelf amendment activation code starting";
-
-    auto removeTrustLineToSelf = [this](Sandbox& sb, uint256 id) {
-        auto tl = sb.peek(keylet::child(id));
-
-        if (tl == nullptr)
-        {
-            JLOG(j_.warn()) << id << ": Unable to locate trustline";
-            return true;
-        }
-
-        if (tl->getType() != ltRIPPLE_STATE)
-        {
-            JLOG(j_.warn()) << id << ": Unexpected type "
-                            << static_cast<std::uint16_t>(tl->getType());
-            return true;
-        }
-
-        auto const& lo = tl->getFieldAmount(sfLowLimit);
-        auto const& hi = tl->getFieldAmount(sfHighLimit);
-
-        if (lo != hi)
-        {
-            JLOG(j_.warn()) << id << ": Trustline doesn't meet requirements";
-            return true;
-        }
-
-        if (auto const page = tl->getFieldU64(sfLowNode); !sb.dirRemove(
-                keylet::ownerDir(lo.getIssuer()), page, tl->key(), false))
-        {
-            JLOG(j_.error()) << id << ": failed to remove low entry from "
-                             << toBase58(lo.getIssuer()) << ":" << page
-                             << " owner directory";
-            return false;
-        }
-
-        if (auto const page = tl->getFieldU64(sfHighNode); !sb.dirRemove(
-                keylet::ownerDir(hi.getIssuer()), page, tl->key(), false))
-        {
-            JLOG(j_.error()) << id << ": failed to remove high entry from "
-                             << toBase58(hi.getIssuer()) << ":" << page
-                             << " owner directory";
-            return false;
-        }
-
-        if (tl->getFlags() & lsfLowReserve)
-            adjustOwnerCount(
-                sb, sb.peek(keylet::account(lo.getIssuer())), -1, j_);
-
-        if (tl->getFlags() & lsfHighReserve)
-            adjustOwnerCount(
-                sb, sb.peek(keylet::account(hi.getIssuer())), -1, j_);
-
-        sb.erase(tl);
-
-        JLOG(j_.warn()) << "Successfully deleted trustline " << id;
-
-        return true;
-    };
-
-    using namespace std::literals;
-
-    Sandbox sb(&view());
-
-    if (removeTrustLineToSelf(
-            sb,
-            uint256{
-                "2F8F21EFCAFD7ACFB07D5BB04F0D2E18587820C7611305BB674A64EAB0FA71E1"sv}) &&
-        removeTrustLineToSelf(
-            sb,
-            uint256{
-                "326035D5C0560A9DA8636545DD5A1B0DFCFF63E68D491B5522B767BB00564B1A"sv}))
-    {
-        JLOG(j_.warn()) << "fixTrustLinesToSelf amendment activation code "
-                           "executed successfully";
-        sb.apply(ctx_.rawView());
-    }
-}
-
 TER
 Change::applyAmendment()
 {
@@ -305,9 +223,6 @@ Change::applyAmendment()
         amendments.push_back(amendment);
         amendmentObject->setFieldV256(sfAmendments, amendments);
 
-        if (amendment == fixTrustLinesToSelf)
-            activateTrustLinesToSelfFix();
-
         ctx_.app.getAmendmentTable().enable(amendment);
 
         if (!ctx_.app.getAmendmentTable().isSupported(amendment))

src/xrpld/app/tx/detail/Change.h

@@ -29,9 +29,6 @@ public:
     preclaim(PreclaimContext const& ctx);
 
 private:
-    void
-    activateTrustLinesToSelfFix();
-
     TER
     applyAmendment();
 

src/xrpld/app/tx/detail/SetTrust.cpp

@@ -195,29 +195,8 @@ SetTrust::preclaim(PreclaimContext const& ctx)
     auto const currency = saLimitAmount.getCurrency();
     auto const uDstAccountID = saLimitAmount.getIssuer();
 
-    if (ctx.view.rules().enabled(fixTrustLinesToSelf))
-    {
-        if (id == uDstAccountID)
-            return temDST_IS_SRC;
-    }
-    else
-    {
-        if (id == uDstAccountID)
-        {
-            // Prevent trustline to self from being created,
-            // unless one has somehow already been created
-            // (in which case doApply will clean it up).
-            auto const sleDelete =
-                ctx.view.read(keylet::line(id, uDstAccountID, currency));
-
-            if (!sleDelete)
-            {
-                JLOG(ctx.j.trace())
-                    << "Malformed transaction: Can not extend credit to self.";
-                return temDST_IS_SRC;
-            }
-        }
-    }
+    if (id == uDstAccountID)
+        return temDST_IS_SRC;
 
     // This might be nullptr
     auto const sleDst = ctx.view.read(keylet::account(uDstAccountID));
@@ -403,21 +382,6 @@ SetTrust::doApply()
 
     auto viewJ = ctx_.app.journal("View");
 
-    // Trust lines to self are impossible but because of the old bug there
-    // are two on 19-02-2022. This code was here to allow those trust lines
-    // to be deleted. The fixTrustLinesToSelf fix amendment will remove them
-    // when it enables so this code will no longer be needed.
-    if (!view().rules().enabled(fixTrustLinesToSelf) &&
-        account_ == uDstAccountID)
-    {
-        return trustDelete(
-            view(),
-            view().peek(keylet::line(account_, uDstAccountID, currency)),
-            account_,
-            uDstAccountID,
-            viewJ);
-    }
-
     SLE::pointer sleDst = view().peek(keylet::account(uDstAccountID));
 
     if (!sleDst)