OfferHelpers.cpp

#include <xrpl/ledger/helpers/OfferHelpers.h>
 
#include <xrpl/basics/base_uint.h>
#include <xrpl/beast/utility/Journal.h>
#include <xrpl/beast/utility/instrumentation.h>
#include <xrpl/ledger/ApplyView.h>
#include <xrpl/ledger/helpers/AccountRootHelpers.h>
#include <xrpl/protocol/Indexes.h>
#include <xrpl/protocol/LedgerFormats.h>
#include <xrpl/protocol/SField.h>
#include <xrpl/protocol/STArray.h>  // IWYU pragma: keep
#include <xrpl/protocol/STLedgerEntry.h>
#include <xrpl/protocol/TER.h>
 
namespace xrpl {
 
TER
offerDelete(ApplyView& view, SLE::ref sle, beast::Journal j)
{
    if (!sle)
        return tesSUCCESS;
    auto offerIndex = sle->key();
    auto owner = sle->getAccountID(sfAccount);
 
    // Detect legacy directories.
    uint256 const uDirectory = sle->getFieldH256(sfBookDirectory);
 
    if (!view.dirRemove(keylet::ownerDir(owner), sle->getFieldU64(sfOwnerNode), offerIndex, false))
    {
        return tefBAD_LEDGER;  // LCOV_EXCL_LINE
    }
 
    if (!view.dirRemove(keylet::page(uDirectory), sle->getFieldU64(sfBookNode), offerIndex, false))
    {
        return tefBAD_LEDGER;  // LCOV_EXCL_LINE
    }
 
    if (sle->isFieldPresent(sfAdditionalBooks))
    {
        XRPL_ASSERT(
            sle->isFlag(lsfHybrid) && sle->isFieldPresent(sfDomainID),
            "xrpl::offerDelete : should be a hybrid domain offer");
 
        auto const& additionalBookDirs = sle->getFieldArray(sfAdditionalBooks);
 
        for (auto const& bookDir : additionalBookDirs)
        {
            auto const& dirIndex = bookDir.getFieldH256(sfBookDirectory);
            auto const& dirNode = bookDir.getFieldU64(sfBookNode);
 
            if (!view.dirRemove(keylet::page(dirIndex), dirNode, offerIndex, false))
            {
                return tefBAD_LEDGER;  // LCOV_EXCL_LINE
            }
        }
    }
 
    adjustOwnerCount(view, view.peek(keylet::account(owner)), -1, j);
 
    view.erase(sle);
 
    return tesSUCCESS;
}
 
}  // namespace xrpl