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53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file checksum_func.hpp Checksum utility functions. */
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#ifndef CHECKSUM_FUNC_HPP
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#define CHECKSUM_FUNC_HPP
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#include "bitmath_func.hpp"
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#ifdef RANDOM_DEBUG
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#include "../network/network.h"
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#include "../network/network_server.h"
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#include "../network/network_internal.h"
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#include "../company_func.h"
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#include "../fileio_func.h"
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#include "../date_func.h"
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#include "../debug.h"
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#endif /* RANDOM_DEBUG */
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struct SimpleChecksum64 {
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uint64_t state = 0;
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void Update(uint64_t input)
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{
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this->state = ROL(this->state, 1) ^ input ^ 0x123456789ABCDEF7ULL;
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}
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};
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extern SimpleChecksum64 _state_checksum;
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inline void UpdateStateChecksum(uint64_t input)
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{
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if (_networking) _state_checksum.Update(input);
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}
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#ifdef RANDOM_DEBUG
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inline bool ShouldLogUpdateStateChecksum()
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{
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return _networking && (!_network_server || (NetworkClientSocket::IsValidID(0) && NetworkClientSocket::Get(0)->status != NetworkClientSocket::STATUS_INACTIVE));
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}
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# define DEBUG_UPDATESTATECHECKSUM(str, ...) if (ShouldLogUpdateStateChecksum()) DEBUG(statecsum, 0, "%s; %04x; %02x; " OTTD_PRINTFHEX64PAD "; %s:%d " str, \
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debug_date_dumper().HexDate(), _frame_counter, (byte)_current_company, _state_checksum.state, __FILE__, __LINE__, __VA_ARGS__);
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#else
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# define DEBUG_UPDATESTATECHECKSUM(str, ...)
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#endif /* RANDOM_DEBUG */
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#endif /* CHECKSUM_FUNC_HPP */
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