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dogecoin/src/net.h
Cory Fields f60b9059e4 net: Pass best block known height into CConnman 
CConnman then passes the current best height into CNode at creation time.

This way CConnman/CNode have no dependency on main for height, and the signals
only move in one direction.

This also helps to prevent identity leakage a tiny bit. Before this change, an
attacker could theoretically make 2 connections on different interfaces. They
would connect fully on one, and only establish the initial connection on the
other. Once they receive a new block, they would relay it to your first
connection, and immediately commence the version handshake on the second. Since
the new block height is reflected immediately, they could attempt to learn
whether the two connections were correlated.

This is, of course, incredibly unlikely to work due to the small timings
involved and receipt from other senders. But it doesn't hurt to lock-in
nBestHeight at the time of connection, rather than letting the remote choose
the time.
2016-09-08 12:24:06 -04:00

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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2015 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_NET_H
#define BITCOIN_NET_H
#include "addrdb.h"
#include "addrman.h"
#include "amount.h"
#include "bloom.h"
#include "compat.h"
#include "limitedmap.h"
#include "netaddress.h"
#include "protocol.h"
#include "random.h"
#include "streams.h"
#include "sync.h"
#include "uint256.h"
#include <atomic>
#include <deque>
#include <stdint.h>
#include <memory>
#ifndef WIN32
#include <arpa/inet.h>
#endif
#include <boost/filesystem/path.hpp>
#include <boost/foreach.hpp>
#include <boost/signals2/signal.hpp>
class CAddrMan;
class CScheduler;
class CNode;
namespace boost {
class thread_group;
} // namespace boost
/** Time between pings automatically sent out for latency probing and keepalive (in seconds). */
static const int PING_INTERVAL = 2 * 60;
/** Time after which to disconnect, after waiting for a ping response (or inactivity). */
static const int TIMEOUT_INTERVAL = 20 * 60;
/** Run the feeler connection loop once every 2 minutes or 120 seconds. **/
static const int FEELER_INTERVAL = 120;
/** The maximum number of entries in an 'inv' protocol message */
static const unsigned int MAX_INV_SZ = 50000;
/** The maximum number of new addresses to accumulate before announcing. */
static const unsigned int MAX_ADDR_TO_SEND = 1000;
/** Maximum length of incoming protocol messages (no message over 4 MB is currently acceptable). */
static const unsigned int MAX_PROTOCOL_MESSAGE_LENGTH = 4 * 1000 * 1000;
/** Maximum length of strSubVer in `version` message */
static const unsigned int MAX_SUBVERSION_LENGTH = 256;
/** Maximum number of outgoing nodes */
static const int MAX_OUTBOUND_CONNECTIONS = 8;
/** -listen default */
static const bool DEFAULT_LISTEN = true;
/** -upnp default */
#ifdef USE_UPNP
static const bool DEFAULT_UPNP = USE_UPNP;
#else
static const bool DEFAULT_UPNP = false;
#endif
/** The maximum number of entries in mapAskFor */
static const size_t MAPASKFOR_MAX_SZ = MAX_INV_SZ;
/** The maximum number of entries in setAskFor (larger due to getdata latency)*/
static const size_t SETASKFOR_MAX_SZ = 2 * MAX_INV_SZ;
/** The maximum number of peer connections to maintain. */
static const unsigned int DEFAULT_MAX_PEER_CONNECTIONS = 125;
/** The default for -maxuploadtarget. 0 = Unlimited */
static const uint64_t DEFAULT_MAX_UPLOAD_TARGET = 0;
/** Default for blocks only*/
static const bool DEFAULT_BLOCKSONLY = false;
static const bool DEFAULT_FORCEDNSSEED = false;
static const size_t DEFAULT_MAXRECEIVEBUFFER = 5 * 1000;
static const size_t DEFAULT_MAXSENDBUFFER = 1 * 1000;
static const ServiceFlags REQUIRED_SERVICES = NODE_NETWORK;
// NOTE: When adjusting this, update rpcnet:setban's help ("24h")
static const unsigned int DEFAULT_MISBEHAVING_BANTIME = 60 * 60 * 24; // Default 24-hour ban
typedef int NodeId;
struct AddedNodeInfo
{
std::string strAddedNode;
CService resolvedAddress;
bool fConnected;
bool fInbound;
};
class CTransaction;
class CNodeStats;
class CConnman
{
public:
enum NumConnections {
CONNECTIONS_NONE = 0,
CONNECTIONS_IN = (1U << 0),
CONNECTIONS_OUT = (1U << 1),
CONNECTIONS_ALL = (CONNECTIONS_IN | CONNECTIONS_OUT),
};
CConnman();
~CConnman();
bool Start(boost::thread_group& threadGroup, CScheduler& scheduler, ServiceFlags nLocalServicesIn, ServiceFlags nRelevantServicesIn, int nMaxConnectionsIn, int nMaxOutboundIn, int nBestHeightIn, std::string& strNodeError);
void Stop();
bool BindListenPort(const CService &bindAddr, std::string& strError, bool fWhitelisted = false);
bool OpenNetworkConnection(const CAddress& addrConnect, bool fCountFailure, CSemaphoreGrant *grantOutbound = NULL, const char *strDest = NULL, bool fOneShot = false, bool fFeeler = false);
bool CheckIncomingNonce(uint64_t nonce);
bool ForNode(NodeId id, std::function<bool(CNode* pnode)> func);
bool ForEachNode(std::function<bool(CNode* pnode)> func);
bool ForEachNode(std::function<bool(const CNode* pnode)> func) const;
bool ForEachNodeThen(std::function<bool(CNode* pnode)> pre, std::function<void()> post);
bool ForEachNodeThen(std::function<bool(const CNode* pnode)> pre, std::function<void()> post) const;
void RelayTransaction(const CTransaction& tx);
// Addrman functions
size_t GetAddressCount() const;
void SetServices(const CService &addr, ServiceFlags nServices);
void MarkAddressGood(const CAddress& addr);
void AddNewAddress(const CAddress& addr, const CAddress& addrFrom, int64_t nTimePenalty = 0);
void AddNewAddresses(const std::vector<CAddress>& vAddr, const CAddress& addrFrom, int64_t nTimePenalty = 0);
std::vector<CAddress> GetAddresses();
void AddressCurrentlyConnected(const CService& addr);
// Denial-of-service detection/prevention
// The idea is to detect peers that are behaving
// badly and disconnect/ban them, but do it in a
// one-coding-mistake-won't-shatter-the-entire-network
// way.
// IMPORTANT: There should be nothing I can give a
// node that it will forward on that will make that
// node's peers drop it. If there is, an attacker
// can isolate a node and/or try to split the network.
// Dropping a node for sending stuff that is invalid
// now but might be valid in a later version is also
// dangerous, because it can cause a network split
// between nodes running old code and nodes running
// new code.
void Ban(const CNetAddr& netAddr, const BanReason& reason, int64_t bantimeoffset = 0, bool sinceUnixEpoch = false);
void Ban(const CSubNet& subNet, const BanReason& reason, int64_t bantimeoffset = 0, bool sinceUnixEpoch = false);
void ClearBanned(); // needed for unit testing
bool IsBanned(CNetAddr ip);
bool IsBanned(CSubNet subnet);
bool Unban(const CNetAddr &ip);
bool Unban(const CSubNet &ip);
void GetBanned(banmap_t &banmap);
void SetBanned(const banmap_t &banmap);
void AddOneShot(const std::string& strDest);
bool AddNode(const std::string& node);
bool RemoveAddedNode(const std::string& node);
std::vector<AddedNodeInfo> GetAddedNodeInfo();
size_t GetNodeCount(NumConnections num);
void GetNodeStats(std::vector<CNodeStats>& vstats);
bool DisconnectAddress(const CNetAddr& addr);
bool DisconnectNode(const std::string& node);
bool DisconnectNode(NodeId id);
bool DisconnectSubnet(const CSubNet& subnet);
unsigned int GetSendBufferSize() const;
void AddWhitelistedRange(const CSubNet &subnet);
ServiceFlags GetLocalServices() const;
//!set the max outbound target in bytes
void SetMaxOutboundTarget(uint64_t limit);
uint64_t GetMaxOutboundTarget();
//!set the timeframe for the max outbound target
void SetMaxOutboundTimeframe(uint64_t timeframe);
uint64_t GetMaxOutboundTimeframe();
//!check if the outbound target is reached
// if param historicalBlockServingLimit is set true, the function will
// response true if the limit for serving historical blocks has been reached
bool OutboundTargetReached(bool historicalBlockServingLimit);
//!response the bytes left in the current max outbound cycle
// in case of no limit, it will always response 0
uint64_t GetOutboundTargetBytesLeft();
//!response the time in second left in the current max outbound cycle
// in case of no limit, it will always response 0
uint64_t GetMaxOutboundTimeLeftInCycle();
uint64_t GetTotalBytesRecv();
uint64_t GetTotalBytesSent();
void SetBestHeight(int height);
int GetBestHeight() const;
private:
struct ListenSocket {
SOCKET socket;
bool whitelisted;
ListenSocket(SOCKET socket_, bool whitelisted_) : socket(socket_), whitelisted(whitelisted_) {}
};
void ThreadOpenAddedConnections();
void ProcessOneShot();
void ThreadOpenConnections();
void ThreadMessageHandler();
void AcceptConnection(const ListenSocket& hListenSocket);
void ThreadSocketHandler();
void ThreadDNSAddressSeed();
CNode* FindNode(const CNetAddr& ip);
CNode* FindNode(const CSubNet& subNet);
CNode* FindNode(const std::string& addrName);
CNode* FindNode(const CService& addr);
bool AttemptToEvictConnection();
CNode* ConnectNode(CAddress addrConnect, const char *pszDest, bool fCountFailure);
bool IsWhitelistedRange(const CNetAddr &addr);
void DeleteNode(CNode* pnode);
NodeId GetNewNodeId();
//!check is the banlist has unwritten changes
bool BannedSetIsDirty();
//!set the "dirty" flag for the banlist
void SetBannedSetDirty(bool dirty=true);
//!clean unused entries (if bantime has expired)
void SweepBanned();
void DumpAddresses();
void DumpData();
void DumpBanlist();
unsigned int GetReceiveFloodSize() const;
// Network stats
void RecordBytesRecv(uint64_t bytes);
void RecordBytesSent(uint64_t bytes);
// Network usage totals
CCriticalSection cs_totalBytesRecv;
CCriticalSection cs_totalBytesSent;
uint64_t nTotalBytesRecv;
uint64_t nTotalBytesSent;
// outbound limit & stats
uint64_t nMaxOutboundTotalBytesSentInCycle;
uint64_t nMaxOutboundCycleStartTime;
uint64_t nMaxOutboundLimit;
uint64_t nMaxOutboundTimeframe;
// Whitelisted ranges. Any node connecting from these is automatically
// whitelisted (as well as those connecting to whitelisted binds).
std::vector<CSubNet> vWhitelistedRange;
CCriticalSection cs_vWhitelistedRange;
unsigned int nSendBufferMaxSize;
unsigned int nReceiveFloodSize;
std::vector<ListenSocket> vhListenSocket;
banmap_t setBanned;
CCriticalSection cs_setBanned;
bool setBannedIsDirty;
bool fAddressesInitialized;
CAddrMan addrman;
std::deque<std::string> vOneShots;
CCriticalSection cs_vOneShots;
std::vector<std::string> vAddedNodes;
CCriticalSection cs_vAddedNodes;
std::vector<CNode*> vNodes;
mutable CCriticalSection cs_vNodes;
std::atomic<NodeId> nLastNodeId;
boost::condition_variable messageHandlerCondition;
/** Services this instance offers */
ServiceFlags nLocalServices;
/** Services this instance cares about */
ServiceFlags nRelevantServices;
CSemaphore *semOutbound;
int nMaxConnections;
int nMaxOutbound;
std::atomic<int> nBestHeight;
};
extern std::unique_ptr<CConnman> g_connman;
void MapPort(bool fUseUPnP);
unsigned short GetListenPort();
bool BindListenPort(const CService &bindAddr, std::string& strError, bool fWhitelisted = false);
bool StartNode(CConnman& connman, boost::thread_group& threadGroup, CScheduler& scheduler, ServiceFlags nLocalServices, ServiceFlags nRelevantServices, int nMaxConnections, int nMaxOutbound, int nBestHeightIn, std::string& strNodeError);
bool StopNode(CConnman& connman);
size_t SocketSendData(CNode *pnode);
struct CombinerAll
{
typedef bool result_type;
template<typename I>
bool operator()(I first, I last) const
{
while (first != last) {
if (!(*first)) return false;
++first;
}
return true;
}
};
// Signals for message handling
struct CNodeSignals
{
boost::signals2::signal<bool (CNode*, CConnman&), CombinerAll> ProcessMessages;
boost::signals2::signal<bool (CNode*, CConnman&), CombinerAll> SendMessages;
boost::signals2::signal<void (NodeId, const CNode*)> InitializeNode;
boost::signals2::signal<void (NodeId, bool&)> FinalizeNode;
};
CNodeSignals& GetNodeSignals();
enum
{
LOCAL_NONE, // unknown
LOCAL_IF, // address a local interface listens on
LOCAL_BIND, // address explicit bound to
LOCAL_UPNP, // address reported by UPnP
LOCAL_MANUAL, // address explicitly specified (-externalip=)
LOCAL_MAX
};
bool IsPeerAddrLocalGood(CNode *pnode);
void AdvertiseLocal(CNode *pnode);
void SetLimited(enum Network net, bool fLimited = true);
bool IsLimited(enum Network net);
bool IsLimited(const CNetAddr& addr);
bool AddLocal(const CService& addr, int nScore = LOCAL_NONE);
bool AddLocal(const CNetAddr& addr, int nScore = LOCAL_NONE);
bool RemoveLocal(const CService& addr);
bool SeenLocal(const CService& addr);
bool IsLocal(const CService& addr);
bool GetLocal(CService &addr, const CNetAddr *paddrPeer = NULL);
bool IsReachable(enum Network net);
bool IsReachable(const CNetAddr &addr);
CAddress GetLocalAddress(const CNetAddr *paddrPeer, ServiceFlags nLocalServices);
extern bool fDiscover;
extern bool fListen;
extern bool fRelayTxes;
extern limitedmap<uint256, int64_t> mapAlreadyAskedFor;
/** Subversion as sent to the P2P network in `version` messages */
extern std::string strSubVersion;
struct LocalServiceInfo {
int nScore;
int nPort;
};
extern CCriticalSection cs_mapLocalHost;
extern std::map<CNetAddr, LocalServiceInfo> mapLocalHost;
typedef std::map<std::string, uint64_t> mapMsgCmdSize; //command, total bytes
class CNodeStats
{
public:
NodeId nodeid;
ServiceFlags nServices;
bool fRelayTxes;
int64_t nLastSend;
int64_t nLastRecv;
int64_t nTimeConnected;
int64_t nTimeOffset;
std::string addrName;
int nVersion;
std::string cleanSubVer;
bool fInbound;
int nStartingHeight;
uint64_t nSendBytes;
mapMsgCmdSize mapSendBytesPerMsgCmd;
uint64_t nRecvBytes;
mapMsgCmdSize mapRecvBytesPerMsgCmd;
bool fWhitelisted;
double dPingTime;
double dPingWait;
double dPingMin;
std::string addrLocal;
};
class CNetMessage {
public:
bool in_data; // parsing header (false) or data (true)
CDataStream hdrbuf; // partially received header
CMessageHeader hdr; // complete header
unsigned int nHdrPos;
CDataStream vRecv; // received message data
unsigned int nDataPos;
int64_t nTime; // time (in microseconds) of message receipt.
CNetMessage(const CMessageHeader::MessageStartChars& pchMessageStartIn, int nTypeIn, int nVersionIn) : hdrbuf(nTypeIn, nVersionIn), hdr(pchMessageStartIn), vRecv(nTypeIn, nVersionIn) {
hdrbuf.resize(24);
in_data = false;
nHdrPos = 0;
nDataPos = 0;
nTime = 0;
}
bool complete() const
{
if (!in_data)
return false;
return (hdr.nMessageSize == nDataPos);
}
void SetVersion(int nVersionIn)
{
hdrbuf.SetVersion(nVersionIn);
vRecv.SetVersion(nVersionIn);
}
int readHeader(const char *pch, unsigned int nBytes);
int readData(const char *pch, unsigned int nBytes);
};
/** Information about a peer */
class CNode
{
public:
// socket
ServiceFlags nServices;
ServiceFlags nServicesExpected;
SOCKET hSocket;
CDataStream ssSend;
size_t nSendSize; // total size of all vSendMsg entries
size_t nSendOffset; // offset inside the first vSendMsg already sent
uint64_t nOptimisticBytesWritten;
uint64_t nSendBytes;
std::deque<CSerializeData> vSendMsg;
CCriticalSection cs_vSend;
std::deque<CInv> vRecvGetData;
std::deque<CNetMessage> vRecvMsg;
CCriticalSection cs_vRecvMsg;
uint64_t nRecvBytes;
int nRecvVersion;
int64_t nLastSend;
int64_t nLastRecv;
int64_t nTimeConnected;
int64_t nTimeOffset;
const CAddress addr;
std::string addrName;
CService addrLocal;
int nVersion;
// strSubVer is whatever byte array we read from the wire. However, this field is intended
// to be printed out, displayed to humans in various forms and so on. So we sanitize it and
// store the sanitized version in cleanSubVer. The original should be used when dealing with
// the network or wire types and the cleaned string used when displayed or logged.
std::string strSubVer, cleanSubVer;
bool fWhitelisted; // This peer can bypass DoS banning.
bool fFeeler; // If true this node is being used as a short lived feeler.
bool fOneShot;
bool fClient;
bool fInbound;
bool fNetworkNode;
bool fSuccessfullyConnected;
bool fDisconnect;
// We use fRelayTxes for two purposes -
// a) it allows us to not relay tx invs before receiving the peer's version message
// b) the peer may tell us in its version message that we should not relay tx invs
// unless it loads a bloom filter.
bool fRelayTxes; //protected by cs_filter
bool fSentAddr;
CSemaphoreGrant grantOutbound;
CCriticalSection cs_filter;
CBloomFilter* pfilter;
int nRefCount;
NodeId id;
const uint64_t nKeyedNetGroup;
protected:
mapMsgCmdSize mapSendBytesPerMsgCmd;
mapMsgCmdSize mapRecvBytesPerMsgCmd;
// Basic fuzz-testing
void Fuzz(int nChance); // modifies ssSend
public:
uint256 hashContinue;
int nStartingHeight;
// flood relay
std::vector<CAddress> vAddrToSend;
CRollingBloomFilter addrKnown;
bool fGetAddr;
std::set<uint256> setKnown;
int64_t nNextAddrSend;
int64_t nNextLocalAddrSend;
// inventory based relay
CRollingBloomFilter filterInventoryKnown;
// Set of transaction ids we still have to announce.
// They are sorted by the mempool before relay, so the order is not important.
std::set<uint256> setInventoryTxToSend;
// List of block ids we still have announce.
// There is no final sorting before sending, as they are always sent immediately
// and in the order requested.
std::vector<uint256> vInventoryBlockToSend;
CCriticalSection cs_inventory;
std::set<uint256> setAskFor;
std::multimap<int64_t, CInv> mapAskFor;
int64_t nNextInvSend;
// Used for headers announcements - unfiltered blocks to relay
// Also protected by cs_inventory
std::vector<uint256> vBlockHashesToAnnounce;
// Used for BIP35 mempool sending, also protected by cs_inventory
bool fSendMempool;
// Last time a "MEMPOOL" request was serviced.
std::atomic<int64_t> timeLastMempoolReq;
// Block and TXN accept times
std::atomic<int64_t> nLastBlockTime;
std::atomic<int64_t> nLastTXTime;
// Ping time measurement:
// The pong reply we're expecting, or 0 if no pong expected.
uint64_t nPingNonceSent;
// Time (in usec) the last ping was sent, or 0 if no ping was ever sent.
int64_t nPingUsecStart;
// Last measured round-trip time.
int64_t nPingUsecTime;
// Best measured round-trip time.
int64_t nMinPingUsecTime;
// Whether a ping is requested.
bool fPingQueued;
// Minimum fee rate with which to filter inv's to this node
CAmount minFeeFilter;
CCriticalSection cs_feeFilter;
CAmount lastSentFeeFilter;
int64_t nextSendTimeFeeFilter;
CNode(NodeId id, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn, SOCKET hSocketIn, const CAddress &addrIn, const std::string &addrNameIn = "", bool fInboundIn = false);
~CNode();
private:
CNode(const CNode&);
void operator=(const CNode&);
static uint64_t CalculateKeyedNetGroup(const CAddress& ad);
uint64_t nLocalHostNonce;
ServiceFlags nLocalServices;
int nMyStartingHeight;
public:
NodeId GetId() const {
return id;
}
uint64_t GetLocalNonce() const {
return nLocalHostNonce;
}
int GetRefCount()
{
assert(nRefCount >= 0);
return nRefCount;
}
// requires LOCK(cs_vRecvMsg)
unsigned int GetTotalRecvSize()
{
unsigned int total = 0;
BOOST_FOREACH(const CNetMessage &msg, vRecvMsg)
total += msg.vRecv.size() + 24;
return total;
}
// requires LOCK(cs_vRecvMsg)
bool ReceiveMsgBytes(const char *pch, unsigned int nBytes, bool& complete);
// requires LOCK(cs_vRecvMsg)
void SetRecvVersion(int nVersionIn)
{
nRecvVersion = nVersionIn;
BOOST_FOREACH(CNetMessage &msg, vRecvMsg)
msg.SetVersion(nVersionIn);
}
CNode* AddRef()
{
nRefCount++;
return this;
}
void Release()
{
nRefCount--;
}
void AddAddressKnown(const CAddress& _addr)
{
addrKnown.insert(_addr.GetKey());
}
void PushAddress(const CAddress& _addr)
{
// Known checking here is only to save space from duplicates.
// SendMessages will filter it again for knowns that were added
// after addresses were pushed.
if (_addr.IsValid() && !addrKnown.contains(_addr.GetKey())) {
if (vAddrToSend.size() >= MAX_ADDR_TO_SEND) {
vAddrToSend[insecure_rand() % vAddrToSend.size()] = _addr;
} else {
vAddrToSend.push_back(_addr);
}
}
}
void AddInventoryKnown(const CInv& inv)
{
{
LOCK(cs_inventory);
filterInventoryKnown.insert(inv.hash);
}
}
void PushInventory(const CInv& inv)
{
LOCK(cs_inventory);
if (inv.type == MSG_TX) {
if (!filterInventoryKnown.contains(inv.hash)) {
setInventoryTxToSend.insert(inv.hash);
}
} else if (inv.type == MSG_BLOCK) {
vInventoryBlockToSend.push_back(inv.hash);
}
}
void PushBlockHash(const uint256 &hash)
{
LOCK(cs_inventory);
vBlockHashesToAnnounce.push_back(hash);
}
void AskFor(const CInv& inv);
// TODO: Document the postcondition of this function. Is cs_vSend locked?
void BeginMessage(const char* pszCommand) EXCLUSIVE_LOCK_FUNCTION(cs_vSend);
// TODO: Document the precondition of this function. Is cs_vSend locked?
void AbortMessage() UNLOCK_FUNCTION(cs_vSend);
// TODO: Document the precondition of this function. Is cs_vSend locked?
void EndMessage(const char* pszCommand) UNLOCK_FUNCTION(cs_vSend);
void PushVersion();
void PushMessage(const char* pszCommand)
{
try
{
BeginMessage(pszCommand);
EndMessage(pszCommand);
}
catch (...)
{
AbortMessage();
throw;
}
}
template<typename T1>
void PushMessage(const char* pszCommand, const T1& a1)
{
try
{
BeginMessage(pszCommand);
ssSend << a1;
EndMessage(pszCommand);
}
catch (...)
{
AbortMessage();
throw;
}
}
/** Send a message containing a1, serialized with flag flag. */
template<typename T1>
void PushMessageWithFlag(int flag, const char* pszCommand, const T1& a1)
{
try
{
BeginMessage(pszCommand);
WithOrVersion(&ssSend, flag) << a1;
EndMessage(pszCommand);
}
catch (...)
{
AbortMessage();
throw;
}
}
template<typename T1, typename T2>
void PushMessage(const char* pszCommand, const T1& a1, const T2& a2)
{
try
{
BeginMessage(pszCommand);
ssSend << a1 << a2;
EndMessage(pszCommand);
}
catch (...)
{
AbortMessage();
throw;
}
}
template<typename T1, typename T2, typename T3>
void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3)
{
try
{
BeginMessage(pszCommand);
ssSend << a1 << a2 << a3;
EndMessage(pszCommand);
}
catch (...)
{
AbortMessage();
throw;
}
}
template<typename T1, typename T2, typename T3, typename T4>
void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4)
{
try
{
BeginMessage(pszCommand);
ssSend << a1 << a2 << a3 << a4;
EndMessage(pszCommand);
}
catch (...)
{
AbortMessage();
throw;
}
}
template<typename T1, typename T2, typename T3, typename T4, typename T5>
void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5)
{
try
{
BeginMessage(pszCommand);
ssSend << a1 << a2 << a3 << a4 << a5;
EndMessage(pszCommand);
}
catch (...)
{
AbortMessage();
throw;
}
}
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6>
void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6)
{
try
{
BeginMessage(pszCommand);
ssSend << a1 << a2 << a3 << a4 << a5 << a6;
EndMessage(pszCommand);
}
catch (...)
{
AbortMessage();
throw;
}
}
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6, const T7& a7)
{
try
{
BeginMessage(pszCommand);
ssSend << a1 << a2 << a3 << a4 << a5 << a6 << a7;
EndMessage(pszCommand);
}
catch (...)
{
AbortMessage();
throw;
}
}
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8>
void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6, const T7& a7, const T8& a8)
{
try
{
BeginMessage(pszCommand);
ssSend << a1 << a2 << a3 << a4 << a5 << a6 << a7 << a8;
EndMessage(pszCommand);
}
catch (...)
{
AbortMessage();
throw;
}
}
template<typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8, typename T9>
void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4, const T5& a5, const T6& a6, const T7& a7, const T8& a8, const T9& a9)
{
try
{
BeginMessage(pszCommand);
ssSend << a1 << a2 << a3 << a4 << a5 << a6 << a7 << a8 << a9;
EndMessage(pszCommand);
}
catch (...)
{
AbortMessage();
throw;
}
}
void CloseSocketDisconnect();
void copyStats(CNodeStats &stats);
ServiceFlags GetLocalServices() const
{
return nLocalServices;
}
};
/** Return a timestamp in the future (in microseconds) for exponentially distributed events. */
int64_t PoissonNextSend(int64_t nNow, int average_interval_seconds);
#endif // BITCOIN_NET_H
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