NetworkOPs.h

//------------------------------------------------------------------------------
/*
    This file is part of rippled: https://github.com/ripple/rippled
    Copyright (c) 2012, 2013 Ripple Labs Inc.
 
    Permission to use, copy, modify, and/or distribute this software for any
    purpose  with  or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.
 
    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
 
#ifndef RIPPLE_APP_MISC_NETWORKOPS_H_INCLUDED
#define RIPPLE_APP_MISC_NETWORKOPS_H_INCLUDED
 
#include <ripple/app/consensus/RCLCxPeerPos.h>
#include <ripple/app/ledger/Ledger.h>
#include <ripple/core/JobQueue.h>
#include <ripple/core/Stoppable.h>
#include <ripple/ledger/ReadView.h>
#include <ripple/net/InfoSub.h>
#include <ripple/protocol/STValidation.h>
#include <boost/asio.hpp>
#include <deque>
#include <memory>
#include <tuple>
 
#include <ripple/protocol/messages.h>
 
namespace ripple {
 
// Operations that clients may wish to perform against the network
// Master operational handler, server sequencer, network tracker
 
class Peer;
class LedgerMaster;
class Transaction;
class ValidatorKeys;
 
// This is the primary interface into the "client" portion of the program.
// Code that wants to do normal operations on the network such as
// creating and monitoring accounts, creating transactions, and so on
// should use this interface. The RPC code will primarily be a light wrapper
// over this code.
//
// Eventually, it will check the node's operating mode (synched, unsynched,
// etectera) and defer to the correct means of processing. The current
// code assumes this node is synched (and will continue to do so until
// there's a functional network.
//
 
enum class OperatingMode {
    DISCONNECTED = 0,  
    CONNECTED = 1,     
    SYNCING = 2,       
    TRACKING = 3,      
    FULL = 4           
};
 
class NetworkOPs : public InfoSub::Source
{
protected:
    explicit NetworkOPs(Stoppable& parent);
 
public:
    using clock_type = beast::abstract_clock<std::chrono::steady_clock>;
 
    enum class FailHard : unsigned char { no, yes };
    static inline FailHard
    doFailHard(bool noMeansDont)
    {
        return noMeansDont ? FailHard::yes : FailHard::no;
    }
 
public:
    ~NetworkOPs() override = default;
 
    //--------------------------------------------------------------------------
    //
    // Network information
    //
 
    virtual OperatingMode
    getOperatingMode() const = 0;
    virtual std::string
    strOperatingMode(OperatingMode const mode, bool const admin = false)
        const = 0;
    virtual std::string
    strOperatingMode(bool const admin = false) const = 0;
 
    //--------------------------------------------------------------------------
    //
    // Transaction processing
    //
 
    // must complete immediately
    virtual void
    submitTransaction(std::shared_ptr<STTx const> const&) = 0;
 
    virtual void
    processTransaction(
        std::shared_ptr<Transaction>& transaction,
        bool bUnlimited,
        bool bLocal,
        FailHard failType) = 0;
 
    //--------------------------------------------------------------------------
    //
    // Owner functions
    //
 
    virtual Json::Value
    getOwnerInfo(
        std::shared_ptr<ReadView const> lpLedger,
        AccountID const& account) = 0;
 
    //--------------------------------------------------------------------------
    //
    // Book functions
    //
 
    virtual void
    getBookPage(
        std::shared_ptr<ReadView const>& lpLedger,
        Book const& book,
        AccountID const& uTakerID,
        bool const bProof,
        unsigned int iLimit,
        Json::Value const& jvMarker,
        Json::Value& jvResult) = 0;
 
    //--------------------------------------------------------------------------
 
    // ledger proposal/close functions
    virtual void
    processTrustedProposal(
        RCLCxPeerPos peerPos,
        std::shared_ptr<protocol::TMProposeSet> set) = 0;
 
    virtual bool
    recvValidation(STValidation::ref val, std::string const& source) = 0;
 
    virtual void
    mapComplete(std::shared_ptr<SHAMap> const& map, bool fromAcquire) = 0;
 
    // network state machine
    virtual bool
    beginConsensus(uint256 const& netLCL) = 0;
    virtual void
    endConsensus() = 0;
    virtual void
    setStandAlone() = 0;
    virtual void
    setStateTimer() = 0;
 
    virtual void
    setNeedNetworkLedger() = 0;
    virtual void
    clearNeedNetworkLedger() = 0;
    virtual bool
    isNeedNetworkLedger() = 0;
    virtual bool
    isFull() = 0;
    virtual void
    setMode(OperatingMode om) = 0;
    virtual bool
    isAmendmentBlocked() = 0;
    virtual void
    setAmendmentBlocked() = 0;
    virtual bool
    isAmendmentWarned() = 0;
    virtual void
    setAmendmentWarned() = 0;
    virtual void
    clearAmendmentWarned() = 0;
    virtual void
    consensusViewChange() = 0;
 
    virtual Json::Value
    getConsensusInfo() = 0;
    virtual Json::Value
    getServerInfo(bool human, bool admin, bool counters) = 0;
    virtual void
    clearLedgerFetch() = 0;
    virtual Json::Value
    getLedgerFetchInfo() = 0;
 
    virtual std::uint32_t
    acceptLedger(
        boost::optional<std::chrono::milliseconds> consensusDelay =
            boost::none) = 0;
 
    virtual uint256
    getConsensusLCL() = 0;
 
    virtual void
    reportFeeChange() = 0;
 
    virtual void
    updateLocalTx(ReadView const& newValidLedger) = 0;
    virtual std::size_t
    getLocalTxCount() = 0;
 
    struct AccountTxMarker
    {
        uint32_t ledgerSeq = 0;
        uint32_t txnSeq = 0;
    };
 
    // client information retrieval functions
    using AccountTx = std::pair<std::shared_ptr<Transaction>, TxMeta::pointer>;
    using AccountTxs = std::vector<AccountTx>;
 
    virtual AccountTxs
    getAccountTxs(
        AccountID const& account,
        std::int32_t minLedger,
        std::int32_t maxLedger,
        bool descending,
        std::uint32_t offset,
        int limit,
        bool bUnlimited) = 0;
 
    virtual AccountTxs
    getTxsAccount(
        AccountID const& account,
        std::int32_t minLedger,
        std::int32_t maxLedger,
        bool forward,
        std::optional<AccountTxMarker>& marker,
        int limit,
        bool bUnlimited) = 0;
 
    using txnMetaLedgerType = std::tuple<Blob, Blob, std::uint32_t>;
    using MetaTxsList = std::vector<txnMetaLedgerType>;
 
    virtual MetaTxsList
    getAccountTxsB(
        AccountID const& account,
        std::int32_t minLedger,
        std::int32_t maxLedger,
        bool descending,
        std::uint32_t offset,
        int limit,
        bool bUnlimited) = 0;
 
    virtual MetaTxsList
    getTxsAccountB(
        AccountID const& account,
        std::int32_t minLedger,
        std::int32_t maxLedger,
        bool forward,
        std::optional<AccountTxMarker>& marker,
        int limit,
        bool bUnlimited) = 0;
 
    //--------------------------------------------------------------------------
    //
    // Monitoring: publisher side
    //
    virtual void
    pubLedger(std::shared_ptr<ReadView const> const& lpAccepted) = 0;
    virtual void
    pubProposedTransaction(
        std::shared_ptr<ReadView const> const& lpCurrent,
        std::shared_ptr<STTx const> const& stTxn,
        TER terResult) = 0;
    virtual void
    pubValidation(STValidation::ref val) = 0;
};
 
//------------------------------------------------------------------------------
 
std::unique_ptr<NetworkOPs>
make_NetworkOPs(
    Application& app,
    NetworkOPs::clock_type& clock,
    bool standalone,
    std::size_t minPeerCount,
    bool start_valid,
    JobQueue& job_queue,
    LedgerMaster& ledgerMaster,
    Stoppable& parent,
    ValidatorKeys const& validatorKeys,
    boost::asio::io_service& io_svc,
    beast::Journal journal,
    beast::insight::Collector::ptr const& collector);
 
}  // namespace ripple
 
#endif