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refactor: misc spork refactoring (#4620)

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* Use string_view instead of string for SERIALIZATION_VERSION_STRING. Also introduces string_view serialization. Also use string_view where (trivially) possible for params

* separate GetSporks and sporks net msg processing into its own method

* refactor: spork, use c++17 if-init

* refactor: spork, remove unused params, make param pt

* refactor: spork, use simplier construction

* refactor: spork, make strError part of if-init, also w/o redundant initialization

* refactor: spork, use structured binding

* refactor: spork, use for instead of while

* clang-format: spork.cpp

* resolve cppcheck linter warning about unused variable
This commit is contained in:
PastaPastaPasta 2021-12-17 11:22:11 -06:00 committed by GitHub
parent 5bdd245105
commit 72e1d79fb8
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4 changed files with 134 additions and 113 deletions
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2
src/net_processing.cpp
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@ -3929,7 +3929,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
}
#endif // ENABLE_WALLET
coinJoinServer.ProcessMessage(pfrom, strCommand, vRecv, *connman, enable_bip61);
sporkManager.ProcessSpork(pfrom, strCommand, vRecv, *connman);
sporkManager.ProcessSporkMessages(pfrom, strCommand, vRecv, *connman);
masternodeSync.ProcessMessage(pfrom, strCommand, vRecv);
governance.ProcessMessage(pfrom, strCommand, vRecv, *connman, enable_bip61);
CMNAuth::ProcessMessage(pfrom, strCommand, vRecv, *connman);

19
src/serialize.h
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@ -970,6 +970,25 @@ void Unserialize(Stream& is, std::basic_string<C>& str)
is.read((char*)str.data(), nSize * sizeof(C));
}
/**
* string_view
*/
template<typename Stream, typename C>
void Serialize(Stream& os, const std::basic_string_view<C>& str)
{
WriteCompactSize(os, str.size());
if (!str.empty())
os.write((char*)str.data(), str.size() * sizeof(C));
}
template<typename Stream, typename C>
void Unserialize(Stream& is, std::basic_string_view<C>& str)
{
unsigned int nSize = ReadCompactSize(is);
str.resize(nSize);
if (nSize != 0)
is.read((char*)str.data(), nSize * sizeof(C));
}
/**

64
src/spork.cpp
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@ -20,8 +20,6 @@
#include <string>
const std::string CSporkManager::SERIALIZATION_VERSION_STRING = "CSporkManager-Version-2";
CSporkManager sporkManager;
bool CSporkManager::SporkValueIsActive(SporkId nSporkID, int64_t& nActiveValueRet) const
@ -30,20 +28,19 @@ bool CSporkManager::SporkValueIsActive(SporkId nSporkID, int64_t &nActiveValueRe
if (!mapSporksActive.count(nSporkID)) return false;
auto it = mapSporksCachedValues.find(nSporkID);
if (it != mapSporksCachedValues.end()) {
if (auto it = mapSporksCachedValues.find(nSporkID); it != mapSporksCachedValues.end()) {
nActiveValueRet = it->second;
return true;
}
// calc how many values we have and how many signers vote for every value
std::unordered_map<int64_t, int> mapValueCounts;
for (const auto& pair: mapSporksActive.at(nSporkID)) {
mapValueCounts[pair.second.nValue]++;
if (mapValueCounts.at(pair.second.nValue) >= nMinSporkKeys) {
for (const auto& [_, spork] : mapSporksActive.at(nSporkID)) {
mapValueCounts[spork.nValue]++;
if (mapValueCounts.at(spork.nValue) >= nMinSporkKeys) {
// nMinSporkKeys is always more than the half of the max spork keys number,
// so there is only one such value and we can stop here
nActiveValueRet = pair.second.nValue;
nActiveValueRet = spork.nValue;
mapSporksCachedValues[nSporkID] = nActiveValueRet;
return true;
}
@ -64,11 +61,9 @@ void CSporkManager::Clear()
void CSporkManager::CheckAndRemove()
{
LOCK(cs);
bool fSporkAddressIsSet = !setSporkPubKeyIDs.empty();
assert(fSporkAddressIsSet);
assert(!setSporkPubKeyIDs.empty());
auto itActive = mapSporksActive.begin();
while (itActive != mapSporksActive.end()) {
for (auto itActive = mapSporksActive.begin(); itActive != mapSporksActive.end();) {
auto itSignerPair = itActive->second.begin();
while (itSignerPair != itActive->second.end()) {
bool fHasValidSig = setSporkPubKeyIDs.find(itSignerPair->first) != setSporkPubKeyIDs.end() &&
@ -87,8 +82,7 @@ void CSporkManager::CheckAndRemove()
++itActive;
}
auto itByHash = mapSporksByHash.begin();
while (itByHash != mapSporksByHash.end()) {
for (auto itByHash = mapSporksByHash.begin(); itByHash != mapSporksByHash.end();) {
bool found = false;
for (const auto& signer : setSporkPubKeyIDs) {
if (itByHash->second.CheckSignature(signer)) {
@ -104,10 +98,15 @@ void CSporkManager::CheckAndRemove()
}
}
void CSporkManager::ProcessSpork(CNode* pfrom, const std::string& strCommand, CDataStream& vRecv, CConnman& connman)
void CSporkManager::ProcessSporkMessages(CNode* pfrom, std::string_view strCommand, CDataStream& vRecv, CConnman& connman)
{
ProcessSpork(pfrom, strCommand, vRecv, connman);
ProcessGetSporks(pfrom, strCommand, connman);
}
if (strCommand == NetMsgType::SPORK) {
void CSporkManager::ProcessSpork(const CNode* pfrom, std::string_view strCommand, CDataStream& vRecv, CConnman& connman)
{
if (strCommand != NetMsgType::SPORK) return;
CSporkMessage spork;
vRecv >> spork;
@ -166,8 +165,12 @@ void CSporkManager::ProcessSpork(CNode* pfrom, const std::string& strCommand, CD
mapSporksCachedValues.erase(spork.nSporkID);
}
spork.Relay(connman);
}
void CSporkManager::ProcessGetSporks(CNode* pfrom, std::string_view strCommand, CConnman& connman)
{
if (strCommand != NetMsgType::GETSPORKS) return;
} else if (strCommand == NetMsgType::GETSPORKS) {
LOCK(cs); // make sure to not lock this together with cs_main
for (const auto& pair : mapSporksActive) {
for (const auto& signerSporkPair : pair.second) {
@ -176,11 +179,10 @@ void CSporkManager::ProcessSpork(CNode* pfrom, const std::string& strCommand, CD
}
}
}
bool CSporkManager::UpdateSpork(SporkId nSporkID, int64_t nValue, CConnman& connman)
{
CSporkMessage spork = CSporkMessage(nSporkID, nValue, GetAdjustedTime());
CSporkMessage spork(nSporkID, nValue, GetAdjustedTime());
{
LOCK(cs);
@ -213,8 +215,7 @@ bool CSporkManager::IsSporkActive(SporkId nSporkID) const
{
LOCK(cs);
// If nSporkID is cached, and the cached value is true, then return early true
auto it = mapSporksCachedActive.find(nSporkID);
if (it != mapSporksCachedActive.end() && it->second) {
if (auto it = mapSporksCachedActive.find(nSporkID); it != mapSporksCachedActive.end() && it->second) {
return true;
}
@ -232,8 +233,7 @@ int64_t CSporkManager::GetSporkValue(SporkId nSporkID) const
{
LOCK(cs);
int64_t nSporkValue = -1;
if (SporkValueIsActive(nSporkID, nSporkValue)) {
if (int64_t nSporkValue = -1; SporkValueIsActive(nSporkID, nSporkValue)) {
return nSporkValue;
}
@ -247,7 +247,7 @@ int64_t CSporkManager::GetSporkValue(SporkId nSporkID) const
return -1;
}
SporkId CSporkManager::GetSporkIDByName(const std::string& strName)
SporkId CSporkManager::GetSporkIDByName(std::string_view strName)
{
for (const auto& sporkDef : sporkDefs) {
if (sporkDef.name == strName) {
@ -273,7 +273,8 @@ bool CSporkManager::GetSporkByHash(const uint256& hash, CSporkMessage &sporkRet)
return true;
}
bool CSporkManager::SetSporkAddress(const std::string& strAddress) {
bool CSporkManager::SetSporkAddress(const std::string& strAddress)
{
LOCK(cs);
CTxDestination dest = DecodeDestination(strAddress);
const CKeyID* keyID = boost::get<CKeyID>(&dest);
@ -288,8 +289,7 @@ bool CSporkManager::SetSporkAddress(const std::string& strAddress) {
bool CSporkManager::SetMinSporkKeys(int minSporkKeys)
{
LOCK(cs);
int maxKeysNumber = setSporkPubKeyIDs.size();
if ((minSporkKeys <= maxKeysNumber / 2) || (minSporkKeys > maxKeysNumber)) {
if (int maxKeysNumber = setSporkPubKeyIDs.size(); (minSporkKeys <= maxKeysNumber / 2) || (minSporkKeys > maxKeysNumber)) {
LogPrintf("CSporkManager::SetMinSporkKeys -- Invalid min spork signers number: %d\n", minSporkKeys);
return false;
}
@ -312,8 +312,7 @@ bool CSporkManager::SetPrivKey(const std::string& strPrivKey)
return false;
}
CSporkMessage spork;
if (!spork.Sign(key)) {
if (!CSporkMessage().Sign(key)) {
LogPrintf("CSporkManager::SetPrivKey -- Test signing failed\n");
return false;
}
@ -352,10 +351,9 @@ bool CSporkMessage::Sign(const CKey& key)
}
CKeyID pubKeyId = key.GetPubKey().GetID();
std::string strError = "";
// Harden Spork6 so that it is active on testnet and no other networks
if (Params().NetworkIDString() == CBaseChainParams::TESTNET) {
if (std::string strError; Params().NetworkIDString() == CBaseChainParams::TESTNET) {
uint256 hash = GetSignatureHash();
if (!CHashSigner::SignHash(hash, key, vchSig)) {
@ -386,10 +384,8 @@ bool CSporkMessage::Sign(const CKey& key)
bool CSporkMessage::CheckSignature(const CKeyID& pubKeyId) const
{
std::string strError = "";
// Harden Spork6 so that it is active on testnet and no other networks
if (Params().NetworkIDString() == CBaseChainParams::TESTNET) {
if (std::string strError; Params().NetworkIDString() == CBaseChainParams::TESTNET) {
uint256 hash = GetSignatureHash();
if (!CHashSigner::VerifyHash(hash, pubKeyId, vchSig, strError)) {

38
src/spork.h
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@ -14,7 +14,6 @@
#include <uint256.h>
#include <array>
#include <string>
#include <string_view>
#include <unordered_map>
#include <vector>
@ -98,9 +97,9 @@ private:
std::vector<unsigned char> vchSig;
public:
SporkId nSporkID;
int64_t nValue;
int64_t nTimeSigned;
SporkId nSporkID{0};
int64_t nValue{0};
int64_t nTimeSigned{0};
CSporkMessage(SporkId nSporkID, int64_t nValue, int64_t nTimeSigned) :
nSporkID(nSporkID),
@ -108,12 +107,7 @@ public:
nTimeSigned(nTimeSigned)
{}
CSporkMessage() :
nSporkID((SporkId)0),
nValue(0),
nTimeSigned(0)
{}
CSporkMessage() = default;
SERIALIZE_METHODS(CSporkMessage, obj)
{
@ -166,7 +160,7 @@ public:
class CSporkManager
{
private:
static const std::string SERIALIZATION_VERSION_STRING;
static constexpr std::string_view SERIALIZATION_VERSION_STRING = "CSporkManager-Version-2";
mutable CCriticalSection cs;
@ -232,13 +226,25 @@ public:
void CheckAndRemove();
/**
* ProcessSpork is used to handle the 'getsporks' and 'spork' p2p messages.
* ProcessSporkMessages is used to call ProcessSpork and ProcessGetSporks. See below
*/
void ProcessSporkMessages(CNode* pfrom, std::string_view strCommand, CDataStream& vRecv, CConnman& connman);
/**
* ProcessSpork is used to handle the 'spork' p2p message.
*
* For 'getsporks', it sends active sporks to the requesting peer. For 'spork',
* it validates the spork and adds it to the internal spork storage and
* For 'spork', it validates the spork and adds it to the internal spork storage and
* performs any necessary processing.
*/
void ProcessSpork(CNode* pfrom, const std::string& strCommand, CDataStream& vRecv, CConnman& connman);
void ProcessSpork(const CNode* pfrom, std::string_view strCommand, CDataStream& vRecv, CConnman& connman);
/**
* ProcessGetSporks is used to handle the 'getsporks' p2p message.
*
* For 'getsporks', it sends active sporks to the requesting peer.
*/
void ProcessGetSporks(CNode* pfrom, std::string_view strCommand, CConnman& connman);
/**
* UpdateSpork is used by the spork RPC command to set a new spork value, sign
@ -266,7 +272,7 @@ public:
/**
* GetSporkIDByName returns the internal Spork ID given the spork name.
*/
static SporkId GetSporkIDByName(const std::string& strName) ;
static SporkId GetSporkIDByName(std::string_view strName);
/**
* GetSporkByHash returns a spork message given a hash of the spork message.