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141 lines
3.4 KiB
141 lines
3.4 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto |
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// Copyright (c) 2009-2013 The Bitcoin developers |
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// Distributed under the MIT/X11 software license, see the accompanying |
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// file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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#ifndef __cplusplus |
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# error This header can only be compiled as C++. |
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#endif |
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#ifndef __INCLUDED_PROTOCOL_H__ |
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#define __INCLUDED_PROTOCOL_H__ |
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#include "chainparams.h" |
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#include "netbase.h" |
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#include "serialize.h" |
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#include "uint256.h" |
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#include "version.h" |
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#include <stdint.h> |
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#include <string> |
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/** Message header. |
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* (4) message start. |
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* (12) command. |
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* (4) size. |
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* (4) checksum. |
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*/ |
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class CMessageHeader |
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{ |
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public: |
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CMessageHeader(); |
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CMessageHeader(const char* pszCommand, unsigned int nMessageSizeIn); |
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std::string GetCommand() const; |
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bool IsValid() const; |
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IMPLEMENT_SERIALIZE |
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( |
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READWRITE(FLATDATA(pchMessageStart)); |
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READWRITE(FLATDATA(pchCommand)); |
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READWRITE(nMessageSize); |
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READWRITE(nChecksum); |
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) |
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// TODO: make private (improves encapsulation) |
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public: |
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enum { |
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COMMAND_SIZE=12, |
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MESSAGE_SIZE_SIZE=sizeof(int), |
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CHECKSUM_SIZE=sizeof(int), |
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MESSAGE_SIZE_OFFSET=MESSAGE_START_SIZE+COMMAND_SIZE, |
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CHECKSUM_OFFSET=MESSAGE_SIZE_OFFSET+MESSAGE_SIZE_SIZE, |
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HEADER_SIZE=MESSAGE_START_SIZE+COMMAND_SIZE+MESSAGE_SIZE_SIZE+CHECKSUM_SIZE |
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}; |
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char pchMessageStart[MESSAGE_START_SIZE]; |
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char pchCommand[COMMAND_SIZE]; |
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unsigned int nMessageSize; |
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unsigned int nChecksum; |
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}; |
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/** nServices flags */ |
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enum |
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{ |
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NODE_NETWORK = (1 << 0), |
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}; |
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/** A CService with information about it as peer */ |
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class CAddress : public CService |
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{ |
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public: |
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CAddress(); |
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explicit CAddress(CService ipIn, uint64_t nServicesIn=NODE_NETWORK); |
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void Init(); |
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IMPLEMENT_SERIALIZE |
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( |
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CAddress* pthis = const_cast<CAddress*>(this); |
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CService* pip = (CService*)pthis; |
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if (fRead) |
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pthis->Init(); |
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if (nType & SER_DISK) |
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READWRITE(nVersion); |
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if ((nType & SER_DISK) || |
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(nVersion >= CADDR_TIME_VERSION && !(nType & SER_GETHASH))) |
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READWRITE(nTime); |
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READWRITE(nServices); |
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READWRITE(*pip); |
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) |
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void print() const; |
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// TODO: make private (improves encapsulation) |
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public: |
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uint64_t nServices; |
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// disk and network only |
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unsigned int nTime; |
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// memory only |
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int64_t nLastTry; |
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}; |
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/** inv message data */ |
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class CInv |
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{ |
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public: |
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CInv(); |
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CInv(int typeIn, const uint256& hashIn); |
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CInv(const std::string& strType, const uint256& hashIn); |
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IMPLEMENT_SERIALIZE |
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( |
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READWRITE(type); |
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READWRITE(hash); |
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) |
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friend bool operator<(const CInv& a, const CInv& b); |
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bool IsKnownType() const; |
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const char* GetCommand() const; |
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std::string ToString() const; |
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void print() const; |
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// TODO: make private (improves encapsulation) |
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public: |
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int type; |
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uint256 hash; |
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}; |
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enum |
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{ |
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MSG_TX = 1, |
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MSG_BLOCK, |
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// Nodes may always request a MSG_FILTERED_BLOCK in a getdata, however, |
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// MSG_FILTERED_BLOCK should not appear in any invs except as a part of getdata. |
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MSG_FILTERED_BLOCK, |
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}; |
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#endif // __INCLUDED_PROTOCOL_H__
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