policy.h

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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2015 The Bitcoin developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#ifndef BITCOIN_POLICY_POLICY_H
#define BITCOIN_POLICY_POLICY_H

#include "consensus/consensus.h"
#include "script/interpreter.h"
#include "script/standard.h"

#include <string>

class CCoinsViewCache;

static const unsigned int DEFAULT_BLOCK_MAX_SIZE = 750000;
static const unsigned int DEFAULT_BLOCK_MIN_SIZE = 0;
static const unsigned int DEFAULT_BLOCK_PRIORITY_SIZE = 10000; // was 50000 in 0.12.0 and it is 0 in Bitcoin since 0.12
static const unsigned int MAX_STANDARD_TX_SIZE = 100000;
static const unsigned int MAX_P2SH_SIGOPS = 15;
static const unsigned int MAX_STANDARD_TX_SIGOPS = 4000;
static const unsigned int DEFAULT_MAX_MEMPOOL_SIZE = 300;
static const unsigned int STANDARD_SCRIPT_VERIFY_FLAGS = MANDATORY_SCRIPT_VERIFY_FLAGS |
                                                         SCRIPT_VERIFY_DERSIG |
                                                         SCRIPT_VERIFY_STRICTENC |
                                                         SCRIPT_VERIFY_MINIMALDATA |
                                                         SCRIPT_VERIFY_NULLDUMMY |
                                                         SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS |
                                                         SCRIPT_VERIFY_CLEANSTACK |
                                                         SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY |
                                                         SCRIPT_VERIFY_CHECKSEQUENCEVERIFY |
                                                         SCRIPT_VERIFY_LOW_S;

static const unsigned int STANDARD_NOT_MANDATORY_VERIFY_FLAGS = STANDARD_SCRIPT_VERIFY_FLAGS & ~MANDATORY_SCRIPT_VERIFY_FLAGS;

static const unsigned int STANDARD_LOCKTIME_VERIFY_FLAGS = LOCKTIME_VERIFY_SEQUENCE |
                                                           LOCKTIME_MEDIAN_TIME_PAST;

bool IsStandard(const CScript& scriptPubKey, txnouttype& whichType);
bool IsStandardTx(const CTransaction& tx, std::string& reason);
bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs);

#endif // BITCOIN_POLICY_POLICY_H