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// Copyright (c) 2015-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_ZMQ_ZMQPUBLISHNOTIFIER_H
#define BITCOIN_ZMQ_ZMQPUBLISHNOTIFIER_H
#include <zmq/zmqabstractnotifier.h>
#include <cstddef>
#include <cstdint>
#include <functional>
#include <vector>
class CBlockIndex;
class CTransaction;
class CZMQAbstractPublishNotifier : public CZMQAbstractNotifier
{
private:
uint32_t nSequence {0U}; //!< upcounting per message sequence number
public:
/* send zmq multipart message
parts:
* command
* data
* message sequence number
*/
bool SendZmqMessage(const char *command, const void* data, size_t size);
bool Initialize(void *pcontext) override;
void Shutdown() override;
};
class CZMQPublishHashBlockNotifier : public CZMQAbstractPublishNotifier
{
public:
bool NotifyBlock(const CBlockIndex *pindex) override;
};
class CZMQPublishHashTransactionNotifier : public CZMQAbstractPublishNotifier
{
public:
bool NotifyTransaction(const CTransaction &transaction) override;
};
class CZMQPublishRawBlockNotifier : public CZMQAbstractPublishNotifier
{
private:
const std::function<bool(std::vector<uint8_t>&, const CBlockIndex&)> m_get_block_by_index;
public:
CZMQPublishRawBlockNotifier(std::function<bool(std::vector<uint8_t>&, const CBlockIndex&)> get_block_by_index)
: m_get_block_by_index{std::move(get_block_by_index)} {}
bool NotifyBlock(const CBlockIndex *pindex) override;
};
class CZMQPublishRawTransactionNotifier : public CZMQAbstractPublishNotifier
{
public:
bool NotifyTransaction(const CTransaction &transaction) override;
};
class CZMQPublishSequenceNotifier : public CZMQAbstractPublishNotifier
{
public:
bool NotifyBlockConnect(const CBlockIndex *pindex) override;
bool NotifyBlockDisconnect(const CBlockIndex *pindex) override;
bool NotifyTransactionAcceptance(const CTransaction &transaction, uint64_t mempool_sequence) override;
bool NotifyTransactionRemoval(const CTransaction &transaction, uint64_t mempool_sequence) override;
};
#endif // BITCOIN_ZMQ_ZMQPUBLISHNOTIFIER_H
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