mirror of
https://github.com/XRPLF/rippled.git
synced 2025-11-22 03:55:53 +00:00
125 lines
3.3 KiB
C++
125 lines
3.3 KiB
C++
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// These must stay at the top of this file
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std::map<int, SField::ptr> SField::codeToField;
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boost::mutex SField::mapMutex;
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int SField::num = 0;
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SField sfInvalid(-1), sfGeneric(0);
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SField sfLedgerEntry(STI_LEDGERENTRY, 1, "LedgerEntry");
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SField sfTransaction(STI_TRANSACTION, 1, "Transaction");
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SField sfValidation(STI_VALIDATION, 1, "Validation");
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SField sfHash(STI_HASH256, 257, "hash");
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SField sfIndex(STI_HASH256, 258, "index");
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#define FIELD(name, type, index) SField sf##name(FIELD_CODE(STI_##type, index), STI_##type, index, #name);
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#define TYPE(name, type, index)
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#include "../protocol/ripple_SerializeDeclarations.h"
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#undef FIELD
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#undef TYPE
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static int initFields()
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{
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sfTxnSignature.notSigningField();
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sfTxnSignatures.notSigningField();
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sfSignature.notSigningField();
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sfIndexes.setMeta(SField::sMD_Never);
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sfPreviousTxnID.setMeta(SField::sMD_DeleteFinal);
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sfPreviousTxnLgrSeq.setMeta(SField::sMD_DeleteFinal);
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sfLedgerEntryType.setMeta(SField::sMD_Never);
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sfRootIndex.setMeta(SField::sMD_Always);
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return 0;
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}
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static const int f = initFields();
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SField::SField(SerializedTypeID tid, int fv) : fieldCode(FIELD_CODE(tid, fv)), fieldType(tid), fieldValue(fv),
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fieldMeta(sMD_Default), fieldNum(++num), signingField(true)
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{ // call with the map mutex
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fieldName = lexical_cast_i(tid) + "/" + lexical_cast_i(fv);
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codeToField[fieldCode] = this;
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assert((fv != 1) || ((tid != STI_ARRAY) && (tid!=STI_OBJECT)));
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}
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SField::ref SField::getField(int code)
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{
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int type = code >> 16;
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int field = code % 0xffff;
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if ((type <= 0) || (field <= 0))
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return sfInvalid;
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boost::mutex::scoped_lock sl(mapMutex);
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std::map<int, SField::ptr>::iterator it = codeToField.find(code);
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if (it != codeToField.end())
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return *(it->second);
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if (field > 255) // don't dynamically extend types that have no binary encoding
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return sfInvalid;
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switch (type)
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{ // types we are willing to dynamically extend
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#define FIELD(name, type, index)
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#define TYPE(name, type, index) case STI_##type:
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#include "../protocol/ripple_SerializeDeclarations.h"
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#undef FIELD
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#undef TYPE
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break;
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default:
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return sfInvalid;
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}
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return *(new SField(static_cast<SerializedTypeID>(type), field));
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}
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int SField::compare(SField::ref f1, SField::ref f2)
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{ // -1 = f1 comes before f2, 0 = illegal combination, 1 = f1 comes after f2
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if ((f1.fieldCode <= 0) || (f2.fieldCode <= 0))
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return 0;
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if (f1.fieldCode < f2.fieldCode)
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return -1;
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if (f2.fieldCode < f1.fieldCode)
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return 1;
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return 0;
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}
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std::string SField::getName() const
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{
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if (!fieldName.empty())
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return fieldName;
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if (fieldValue == 0)
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return "";
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return boost::lexical_cast<std::string>(static_cast<int>(fieldType)) + "/" +
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boost::lexical_cast<std::string>(fieldValue);
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}
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SField::ref SField::getField(const std::string& fieldName)
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{ // OPTIMIZEME me with a map. CHECKME this is case sensitive
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boost::mutex::scoped_lock sl(mapMutex);
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typedef std::map<int, SField::ptr>::value_type int_sfref_pair;
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BOOST_FOREACH(const int_sfref_pair& fieldPair, codeToField)
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{
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if (fieldPair.second->fieldName == fieldName)
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return *(fieldPair.second);
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}
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return sfInvalid;
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}
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SField::~SField()
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{
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boost::mutex::scoped_lock sl(mapMutex);
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std::map<int, ptr>::iterator it = codeToField.find(fieldCode);
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if ((it != codeToField.end()) && (it->second == this))
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codeToField.erase(it);
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}
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// vim:ts=4
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