// Copyright (c) 2012-2013 The Cryptonote developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#pragma once
#include "include_base_utils.h"
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <boost/serialization/version.hpp>
#include <boost/utility.hpp>
#include "string_tools.h"
#include "syncobj.h"
#include "math_helper.h"
#include "cryptonote_basic_impl.h"
#include "verification_context.h"
#include "crypto/hash.h"
namespace cryptonote
{
class blockchain_storage;
/************************************************************************/
/* */
/************************************************************************/
class tx_memory_pool: boost::noncopyable
{
public:
tx_memory_pool(blockchain_storage& bchs);
bool add_tx(const transaction &tx, const crypto::hash &id, size_t blob_size, tx_verification_context& tvc, bool keeped_by_block);
bool add_tx(const transaction &tx, tx_verification_context& tvc, bool keeped_by_block);
//gets tx and remove it from pool
bool take_tx(const crypto::hash &id, transaction &tx, size_t& blob_size, uint64_t& fee);
bool have_tx(const crypto::hash &id);
bool have_tx_keyimg_as_spent(const crypto::key_image& key_im);
bool have_tx_keyimges_as_spent(const transaction& tx);
bool on_blockchain_inc(uint64_t new_block_height, const crypto::hash& top_block_id);
bool on_blockchain_dec(uint64_t new_block_height, const crypto::hash& top_block_id);
void on_idle();
void lock();
void unlock();
// load/store operations
bool init(const std::string& config_folder);
bool deinit();
bool fill_block_template(block &bl, size_t median_size, uint64_t already_generated_coins, size_t &total_size, uint64_t &fee);
bool get_transactions(std::list<transaction>& txs);
bool get_transaction(const crypto::hash& h, transaction& tx);
size_t get_transactions_count();
bool remove_transaction_keyimages(const transaction& tx);
bool have_key_images(const std::unordered_set<crypto::key_image>& kic, const transaction& tx);
bool append_key_images(std::unordered_set<crypto::key_image>& kic, const transaction& tx);
std::string print_pool(bool short_format);
/*bool flush_pool(const std::strig& folder);
bool inflate_pool(const std::strig& folder);*/
#define CURRENT_MEMPOOL_ARCHIVE_VER 8
template<class archive_t>
void serialize(archive_t & a, const unsigned int version)
{
if(version < CURRENT_MEMPOOL_ARCHIVE_VER )
return;
CRITICAL_REGION_LOCAL(m_transactions_lock);
a & m_transactions;
a & m_spent_key_images;
}
struct tx_details
{
transaction tx;
size_t blob_size;
uint64_t fee;
crypto::hash max_used_block_id;
uint64_t max_used_block_height;
bool kept_by_block;
//
uint64_t last_failed_height;
crypto::hash last_failed_id;
time_t receive_time;
};
private:
bool remove_stuck_transactions();
bool is_transaction_ready_to_go(tx_details& txd);
typedef std::unordered_map<crypto::hash, tx_details > transactions_container;
typedef std::unordered_map<crypto::key_image, std::unordered_set<crypto::hash> > key_images_container;
epee::critical_section m_transactions_lock;
transactions_container m_transactions;
key_images_container m_spent_key_images;
epee::math_helper::once_a_time_seconds<30> m_remove_stuck_tx_interval;
//transactions_container m_alternative_transactions;
std::string m_config_folder;
blockchain_storage& m_blockchain;
/************************************************************************/
/* */
/************************************************************************/
/*class inputs_visitor: public boost::static_visitor<bool>
{
key_images_container& m_spent_keys;
public:
inputs_visitor(key_images_container& spent_keys): m_spent_keys(spent_keys)
{}
bool operator()(const txin_to_key& tx) const
{
auto pr = m_spent_keys.insert(tx.k_image);
CHECK_AND_ASSERT_MES(pr.second, false, "Tried to insert transaction with input seems already spent, input: " << epee::string_tools::pod_to_hex(tx.k_image));
return true;
}
bool operator()(const txin_gen& tx) const
{
CHECK_AND_ASSERT_MES(false, false, "coinbase transaction in memory pool");
return false;
}
bool operator()(const txin_to_script& tx) const {return false;}
bool operator()(const txin_to_scripthash& tx) const {return false;}
}; */
/************************************************************************/
/* */
/************************************************************************/
class amount_visitor: public boost::static_visitor<uint64_t>
{
public:
uint64_t operator()(const txin_to_key& tx) const
{
return tx.amount;
}
uint64_t operator()(const txin_gen& tx) const
{
CHECK_AND_ASSERT_MES(false, false, "coinbase transaction in memory pool");
return 0;
}
uint64_t operator()(const txin_to_script& tx) const {return 0;}
uint64_t operator()(const txin_to_scripthash& tx) const {return 0;}
};
#if defined(DEBUG_CREATE_BLOCK_TEMPLATE)
friend class blockchain_storage;
#endif
};
}
namespace boost
{
namespace serialization
{
template<class archive_t>
void serialize(archive_t & ar, cryptonote::tx_memory_pool::tx_details& td, const unsigned int version)
{
ar & td.blob_size;
ar & td.fee;
ar & td.tx;
ar & td.max_used_block_height;
ar & td.max_used_block_id;
ar & td.last_failed_height;
ar & td.last_failed_id;
ar & td.receive_time;
}
}
}
BOOST_CLASS_VERSION(cryptonote::tx_memory_pool, CURRENT_MEMPOOL_ARCHIVE_VER)
