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blockchain/src/currency_protocol/currency_protocol_handler_common.h
Snider 06e7780df5 updates licence
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// Copyright (c) 2017-2025 Lethean (https://lt.hn)
//
// Licensed under the European Union Public Licence (EUPL) version 1.2.
// You may obtain a copy of the licence at:
//
//     https://joinup.ec.europa.eu/software/page/eupl/licence-eupl
//
// The EUPL is a copyleft licence that is compatible with the MIT/X11
// licence used by the original projects; the MIT terms are therefore
// considered “grandfathered” under the EUPL for this code.
//
// SPDX‑License‑Identifier: EUPL-1.2
//
2025-09-25 18:18:41 +01:00

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// Copyright (c) 2014-2018 Zano Project
// Copyright (c) 2014-2018 The Louisdor Project
// Copyright (c) 2012-2013 The Boolberry developers
// Copyright (c) 2017-2025 Lethean (https://lt.hn)
//
// Licensed under the European Union Public Licence (EUPL) version 1.2.
// You may obtain a copy of the licence at:
//
// https://joinup.ec.europa.eu/software/page/eupl/licence-eupl
//
// The EUPL is a copyleft licence that is compatible with the MIT/X11
// licence used by the original projects; the MIT terms are therefore
// considered “grandfathered” under the EUPL for this code.
//
// SPDXLicenseIdentifier: EUPL-1.2
//
#pragma once
#include "p2p/net_node_common.h"
#include "currency_protocol/currency_protocol_defs.h"
#include "currency_core/connection_context.h"
namespace currency
{
/************************************************************************/
/* */
/************************************************************************/
struct i_currency_protocol
{
virtual bool relay_block(NOTIFY_NEW_BLOCK::request& arg, currency_connection_context& exclude_context)=0;
virtual bool relay_transactions(NOTIFY_OR_INVOKE_NEW_TRANSACTIONS::request& arg, currency_connection_context& exclude_context)=0;
virtual void on_hardfork_activated(size_t hardfork_id) {}
//virtual bool request_objects(NOTIFY_REQUEST_GET_OBJECTS::request& arg, currency_connection_context& context)=0;
};
/************************************************************************/
/* */
/************************************************************************/
struct currency_protocol_stub: public i_currency_protocol
{
virtual bool relay_block(NOTIFY_NEW_BLOCK::request& /*arg*/, currency_connection_context& /*exclude_context*/)
{
return false;
}
virtual bool relay_transactions(NOTIFY_OR_INVOKE_NEW_TRANSACTIONS::request& /*arg*/, currency_connection_context& /*exclude_context*/)
{
return false;
}
};
/************************************************************************/
/* */
/************************************************************************/
struct i_critical_error_handler
{
// called by currency protocol when the time is critically out of sync
// return true if the error is not ignored and the called should not proceed
virtual bool on_critical_time_sync_error() = 0;
virtual bool on_critical_low_free_space(uint64_t available, uint64_t required) = 0;
virtual bool on_immediate_stop_requested() = 0;
};
}