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https://github.com/Xahau/xahaud.git
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122 lines
3.7 KiB
C++
122 lines
3.7 KiB
C++
#ifndef __FIELDNAMES__
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#define __FIELDNAMES__
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#include <string>
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#include <boost/thread/mutex.hpp>
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#define FIELD_CODE(type, index) ((static_cast<int>(type) << 16) | index)
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enum SerializedTypeID
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{
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// special types
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STI_UNKNOWN = -2,
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STI_DONE = -1,
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STI_NOTPRESENT = 0,
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#define TYPE(name, field, value) STI_##field = value,
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#define FIELD(name, field, value)
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#include "SerializeProto.h"
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#undef TYPE
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#undef FIELD
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// high level types
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STI_TRANSACTION = 10001,
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STI_LEDGERENTRY = 10002,
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STI_VALIDATION = 10003,
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};
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enum SOE_Flags
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{
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SOE_INVALID = -1,
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SOE_REQUIRED = 0, // required
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SOE_OPTIONAL = 1, // optional, may be present with default value
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SOE_DEFAULT = 2, // optional, if present, must not have default value
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};
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class SField
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{
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public:
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typedef const SField& ref;
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typedef SField const * ptr;
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static const int sMD_Never = 0x00;
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static const int sMD_ChangeOrig = 0x01; // original value when it changes
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static const int sMD_ChangeNew = 0x02; // new value when it changes
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static const int sMD_DeleteFinal = 0x04; // final value when it is deleted
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static const int sMD_Create = 0x08; // value when it's created
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static const int sMD_Always = 0x10; // value when node containing it is affected at all
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static const int sMD_Default = sMD_ChangeOrig | sMD_ChangeNew | sMD_DeleteFinal | sMD_Create;
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protected:
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static std::map<int, ptr> codeToField;
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static boost::mutex mapMutex;
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SField(SerializedTypeID id, int val);
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public:
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const int fieldCode; // (type<<16)|index
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const SerializedTypeID fieldType; // STI_*
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const int fieldValue; // Code number for protocol
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std::string fieldName;
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int fieldMeta;
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bool signingField;
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SField(int fc, SerializedTypeID tid, int fv, const char* fn) :
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fieldCode(fc), fieldType(tid), fieldValue(fv), fieldName(fn), fieldMeta(sMD_Default), signingField(true)
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{
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boost::mutex::scoped_lock sl(mapMutex);
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codeToField[fieldCode] = this;
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}
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SField(SerializedTypeID tid, int fv, const char *fn) :
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fieldCode(FIELD_CODE(tid, fv)), fieldType(tid), fieldValue(fv), fieldName(fn),
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fieldMeta(sMD_Default), signingField(true)
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{
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boost::mutex::scoped_lock sl(mapMutex);
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codeToField[fieldCode] = this;
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}
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SField(int fc) : fieldCode(fc), fieldType(STI_UNKNOWN), fieldValue(0), fieldMeta(sMD_Never) { ; }
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~SField();
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static SField::ref getField(int fieldCode);
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static SField::ref getField(const std::string& fieldName);
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static SField::ref getField(int type, int value) { return getField(FIELD_CODE(type, value)); }
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static SField::ref getField(SerializedTypeID type, int value) { return getField(FIELD_CODE(type, value)); }
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std::string getName() const;
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bool hasName() const { return !fieldName.empty(); }
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bool isGeneric() const { return fieldCode == 0; }
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bool isInvalid() const { return fieldCode == -1; }
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bool isKnown() const { return fieldType != STI_UNKNOWN; }
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bool isBinary() const { return fieldValue < 256; }
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bool isDiscardable() const { return fieldValue > 256; }
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bool isSigningField() const { return signingField; }
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void notSigningField() { signingField = false; }
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bool shouldMeta(int c) const { return (fieldMeta & c) != 0; }
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void setMeta(int c) { fieldMeta = c; }
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bool shouldInclude(bool withSigningField) const
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{ return (fieldValue < 256) && (withSigningField || signingField); }
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bool operator==(const SField& f) const { return fieldCode == f.fieldCode; }
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bool operator!=(const SField& f) const { return fieldCode != f.fieldCode; }
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static int compare(SField::ref f1, SField::ref f2);
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};
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extern SField sfInvalid, sfGeneric, sfLedgerEntry, sfTransaction, sfValidation;
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#define FIELD(name, type, index) extern SField sf##name;
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#define TYPE(name, type, index)
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#include "SerializeProto.h"
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#undef FIELD
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#undef TYPE
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#endif
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