Skip to content
This repository
Fetching contributors…

Cannot retrieve contributors at this time

file 137 lines (112 sloc) 3.376 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#ifndef __cplusplus
# error This header can only be compiled as C++.
#endif

#ifndef __INCLUDED_PROTOCOL_H__
#define __INCLUDED_PROTOCOL_H__

#include "serialize.h"
#include "netbase.h"
#include <string>
#include "uint256.h"

extern bool fTestNet;
static inline unsigned short GetDefaultPort(const bool testnet = fTestNet)
{
    return testnet ? 18333 : 8333;
}


extern unsigned char pchMessageStart[4];

/** Message header.
* (4) message start.
* (12) command.
* (4) size.
* (4) checksum.
*/
class CMessageHeader
{
    public:
        CMessageHeader();
        CMessageHeader(const char* pszCommand, unsigned int nMessageSizeIn);

        std::string GetCommand() const;
        bool IsValid() const;

        IMPLEMENT_SERIALIZE
            (
             READWRITE(FLATDATA(pchMessageStart));
             READWRITE(FLATDATA(pchCommand));
             READWRITE(nMessageSize);
             READWRITE(nChecksum);
            )

    // TODO: make private (improves encapsulation)
    public:
        enum {
            MESSAGE_START_SIZE=sizeof(::pchMessageStart),
            COMMAND_SIZE=12,
            MESSAGE_SIZE_SIZE=sizeof(int),
            CHECKSUM_SIZE=sizeof(int),

            MESSAGE_SIZE_OFFSET=MESSAGE_START_SIZE+COMMAND_SIZE,
            CHECKSUM_OFFSET=MESSAGE_SIZE_OFFSET+MESSAGE_SIZE_SIZE
        };
        char pchMessageStart[MESSAGE_START_SIZE];
        char pchCommand[COMMAND_SIZE];
        unsigned int nMessageSize;
        unsigned int nChecksum;
};

/** nServices flags */
enum
{
    NODE_NETWORK = (1 << 0),
};

/** A CService with information about it as peer */
class CAddress : public CService
{
    public:
        CAddress();
        explicit CAddress(CService ipIn, uint64 nServicesIn=NODE_NETWORK);

        void Init();

        IMPLEMENT_SERIALIZE
            (
             CAddress* pthis = const_cast<CAddress*>(this);
             CService* pip = (CService*)pthis;
             if (fRead)
                 pthis->Init();
             if (nType & SER_DISK)
                 READWRITE(nVersion);
             if ((nType & SER_DISK) ||
                 (nVersion >= CADDR_TIME_VERSION && !(nType & SER_GETHASH)))
                 READWRITE(nTime);
             READWRITE(nServices);
             READWRITE(*pip);
            )

        void print() const;

    // TODO: make private (improves encapsulation)
    public:
        uint64 nServices;

        // disk and network only
        unsigned int nTime;

        // memory only
        int64 nLastTry;
};

/** inv message data */
class CInv
{
    public:
        CInv();
        CInv(int typeIn, const uint256& hashIn);
        CInv(const std::string& strType, const uint256& hashIn);

        IMPLEMENT_SERIALIZE
        (
            READWRITE(type);
            READWRITE(hash);
        )

        friend bool operator<(const CInv& a, const CInv& b);

        bool IsKnownType() const;
        const char* GetCommand() const;
        std::string ToString() const;
        void print() const;

    // TODO: make private (improves encapsulation)
    public:
        int type;
        uint256 hash;
};

#endif // __INCLUDED_PROTOCOL_H__
Something went wrong with that request. Please try again.