kvazar
/
kevacoin
mirror of https://github.com/kvazar-network/kevacoin.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

Make CBlockIndex*es in net_processing const

0.14
Matt Corallo 8 years ago
parent
7dac1e5e9e
commit
80175472d1
3 changed files with 29 additions and 27 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 48
      src/net_processing.cpp
  2. 6
      src/validation.cpp
  3. 2
      src/validation.h

48
src/net_processing.cpp
Unescape View File

@ -101,7 +101,7 @@ namespace {
/** Blocks that are in flight, and that are in the queue to be downloaded. Protected by cs_main. */ /** Blocks that are in flight, and that are in the queue to be downloaded. Protected by cs_main. */
struct QueuedBlock { struct QueuedBlock {
uint256 hash; uint256 hash;
CBlockIndex* pindex; //!< Optional. const CBlockIndex* pindex; //!< Optional.
bool fValidatedHeaders; //!< Whether this block has validated headers at the time of request. bool fValidatedHeaders; //!< Whether this block has validated headers at the time of request.
std::unique_ptr<PartiallyDownloadedBlock> partialBlock; //!< Optional, used for CMPCTBLOCK downloads std::unique_ptr<PartiallyDownloadedBlock> partialBlock; //!< Optional, used for CMPCTBLOCK downloads
}; };
@ -156,13 +156,13 @@ struct CNodeState {
//! List of asynchronously-determined block rejections to notify this peer about. //! List of asynchronously-determined block rejections to notify this peer about.
std::vector<CBlockReject> rejects; std::vector<CBlockReject> rejects;
//! The best known block we know this peer has announced. //! The best known block we know this peer has announced.
CBlockIndex *pindexBestKnownBlock; const CBlockIndex *pindexBestKnownBlock;
//! The hash of the last unknown block this peer has announced. //! The hash of the last unknown block this peer has announced.
uint256 hashLastUnknownBlock; uint256 hashLastUnknownBlock;
//! The last full block we both have. //! The last full block we both have.
CBlockIndex *pindexLastCommonBlock; const CBlockIndex *pindexLastCommonBlock;
//! The best header we have sent our peer. //! The best header we have sent our peer.
CBlockIndex *pindexBestHeaderSent; const CBlockIndex *pindexBestHeaderSent;
//! Length of current-streak of unconnecting headers announcements //! Length of current-streak of unconnecting headers announcements
int nUnconnectingHeaders; int nUnconnectingHeaders;
//! Whether we've started headers synchronization with this peer. //! Whether we've started headers synchronization with this peer.
@ -331,7 +331,7 @@ bool MarkBlockAsReceived(const uint256& hash) {
// Requires cs_main. // Requires cs_main.
// returns false, still setting pit, if the block was already in flight from the same peer // returns false, still setting pit, if the block was already in flight from the same peer
// pit will only be valid as long as the same cs_main lock is being held // pit will only be valid as long as the same cs_main lock is being held
bool MarkBlockAsInFlight(NodeId nodeid, const uint256& hash, const Consensus::Params& consensusParams, CBlockIndex *pindex = NULL, list<QueuedBlock>::iterator **pit = NULL) { bool MarkBlockAsInFlight(NodeId nodeid, const uint256& hash, const Consensus::Params& consensusParams, const CBlockIndex *pindex = NULL, list<QueuedBlock>::iterator **pit = NULL) {
CNodeState *state = State(nodeid); CNodeState *state = State(nodeid);
assert(state != NULL); assert(state != NULL);
@ -432,7 +432,7 @@ bool CanDirectFetch(const Consensus::Params &consensusParams)
} }
// Requires cs_main // Requires cs_main
bool PeerHasHeader(CNodeState *state, CBlockIndex *pindex) bool PeerHasHeader(CNodeState *state, const CBlockIndex *pindex)
{ {
if (state->pindexBestKnownBlock && pindex == state->pindexBestKnownBlock->GetAncestor(pindex->nHeight)) if (state->pindexBestKnownBlock && pindex == state->pindexBestKnownBlock->GetAncestor(pindex->nHeight))
return true; return true;
@ -443,7 +443,7 @@ bool PeerHasHeader(CNodeState *state, CBlockIndex *pindex)
/** Find the last common ancestor two blocks have. /** Find the last common ancestor two blocks have.
* Both pa and pb must be non-NULL. */ * Both pa and pb must be non-NULL. */
CBlockIndex* LastCommonAncestor(CBlockIndex* pa, CBlockIndex* pb) { const CBlockIndex* LastCommonAncestor(const CBlockIndex* pa, const CBlockIndex* pb) {
if (pa->nHeight > pb->nHeight) { if (pa->nHeight > pb->nHeight) {
pa = pa->GetAncestor(pb->nHeight); pa = pa->GetAncestor(pb->nHeight);
} else if (pb->nHeight > pa->nHeight) { } else if (pb->nHeight > pa->nHeight) {
@ -462,7 +462,7 @@ CBlockIndex* LastCommonAncestor(CBlockIndex* pa, CBlockIndex* pb) {
/** Update pindexLastCommonBlock and add not-in-flight missing successors to vBlocks, until it has /** Update pindexLastCommonBlock and add not-in-flight missing successors to vBlocks, until it has
* at most count entries. */ * at most count entries. */
void FindNextBlocksToDownload(NodeId nodeid, unsigned int count, std::vector<CBlockIndex*>& vBlocks, NodeId& nodeStaller, const Consensus::Params& consensusParams) { void FindNextBlocksToDownload(NodeId nodeid, unsigned int count, std::vector<const CBlockIndex*>& vBlocks, NodeId& nodeStaller, const Consensus::Params& consensusParams) {
if (count == 0) if (count == 0)
return; return;
@ -490,8 +490,8 @@ void FindNextBlocksToDownload(NodeId nodeid, unsigned int count, std::vector<CBl
if (state->pindexLastCommonBlock == state->pindexBestKnownBlock) if (state->pindexLastCommonBlock == state->pindexBestKnownBlock)
return; return;
std::vector<CBlockIndex*> vToFetch; std::vector<const CBlockIndex*> vToFetch;
CBlockIndex *pindexWalk = state->pindexLastCommonBlock; const CBlockIndex *pindexWalk = state->pindexLastCommonBlock;
// Never fetch further than the best block we know the peer has, or more than BLOCK_DOWNLOAD_WINDOW + 1 beyond the last // Never fetch further than the best block we know the peer has, or more than BLOCK_DOWNLOAD_WINDOW + 1 beyond the last
// linked block we have in common with this peer. The +1 is so we can detect stalling, namely if we would be able to // linked block we have in common with this peer. The +1 is so we can detect stalling, namely if we would be able to
// download that next block if the window were 1 larger. // download that next block if the window were 1 larger.
@ -514,7 +514,7 @@ void FindNextBlocksToDownload(NodeId nodeid, unsigned int count, std::vector<CBl
// are not yet downloaded and not in flight to vBlocks. In the mean time, update // are not yet downloaded and not in flight to vBlocks. In the mean time, update
// pindexLastCommonBlock as long as all ancestors are already downloaded, or if it's // pindexLastCommonBlock as long as all ancestors are already downloaded, or if it's
// already part of our chain (and therefore don't need it even if pruned). // already part of our chain (and therefore don't need it even if pruned).
BOOST_FOREACH(CBlockIndex* pindex, vToFetch) { BOOST_FOREACH(const CBlockIndex* pindex, vToFetch) {
if (!pindex->IsValid(BLOCK_VALID_TREE)) { if (!pindex->IsValid(BLOCK_VALID_TREE)) {
// We consider the chain that this peer is on invalid. // We consider the chain that this peer is on invalid.
return; return;
@ -1049,7 +1049,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam
} }
} }
uint32_t GetFetchFlags(CNode* pfrom, CBlockIndex* pprev, const Consensus::Params& chainparams) { uint32_t GetFetchFlags(CNode* pfrom, const CBlockIndex* pprev, const Consensus::Params& chainparams) {
uint32_t nFetchFlags = 0; uint32_t nFetchFlags = 0;
if ((pfrom->GetLocalServices() & NODE_WITNESS) && State(pfrom->GetId())->fHaveWitness) { if ((pfrom->GetLocalServices() & NODE_WITNESS) && State(pfrom->GetId())->fHaveWitness) {
nFetchFlags |= MSG_WITNESS_FLAG; nFetchFlags |= MSG_WITNESS_FLAG;
@ -1456,7 +1456,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
LOCK(cs_main); LOCK(cs_main);
// Find the last block the caller has in the main chain // Find the last block the caller has in the main chain
CBlockIndex* pindex = FindForkInGlobalIndex(chainActive, locator); const CBlockIndex* pindex = FindForkInGlobalIndex(chainActive, locator);
// Send the rest of the chain // Send the rest of the chain
if (pindex) if (pindex)
@ -1552,7 +1552,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
} }
CNodeState *nodestate = State(pfrom->GetId()); CNodeState *nodestate = State(pfrom->GetId());
CBlockIndex* pindex = NULL; const CBlockIndex* pindex = NULL;
if (locator.IsNull()) if (locator.IsNull())
{ {
// If locator is null, return the hashStop block // If locator is null, return the hashStop block
@ -1775,7 +1775,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
} }
} }
CBlockIndex *pindex = NULL; const CBlockIndex *pindex = NULL;
CValidationState state; CValidationState state;
if (!ProcessNewBlockHeaders({cmpctblock.header}, state, chainparams, &pindex)) { if (!ProcessNewBlockHeaders({cmpctblock.header}, state, chainparams, &pindex)) {
int nDoS; int nDoS;
@ -2051,7 +2051,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
return true; return true;
} }
CBlockIndex *pindexLast = NULL; const CBlockIndex *pindexLast = NULL;
{ {
LOCK(cs_main); LOCK(cs_main);
CNodeState *nodestate = State(pfrom->GetId()); CNodeState *nodestate = State(pfrom->GetId());
@ -2128,8 +2128,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
// If this set of headers is valid and ends in a block with at least as // If this set of headers is valid and ends in a block with at least as
// much work as our tip, download as much as possible. // much work as our tip, download as much as possible.
if (fCanDirectFetch && pindexLast->IsValid(BLOCK_VALID_TREE) && chainActive.Tip()->nChainWork <= pindexLast->nChainWork) { if (fCanDirectFetch && pindexLast->IsValid(BLOCK_VALID_TREE) && chainActive.Tip()->nChainWork <= pindexLast->nChainWork) {
vector<CBlockIndex *> vToFetch; vector<const CBlockIndex *> vToFetch;
CBlockIndex *pindexWalk = pindexLast; const CBlockIndex *pindexWalk = pindexLast;
// Calculate all the blocks we'd need to switch to pindexLast, up to a limit. // Calculate all the blocks we'd need to switch to pindexLast, up to a limit.
while (pindexWalk && !chainActive.Contains(pindexWalk) && vToFetch.size() <= MAX_BLOCKS_IN_TRANSIT_PER_PEER) { while (pindexWalk && !chainActive.Contains(pindexWalk) && vToFetch.size() <= MAX_BLOCKS_IN_TRANSIT_PER_PEER) {
if (!(pindexWalk->nStatus & BLOCK_HAVE_DATA) && if (!(pindexWalk->nStatus & BLOCK_HAVE_DATA) &&
@ -2151,7 +2151,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
} else { } else {
vector<CInv> vGetData; vector<CInv> vGetData;
// Download as much as possible, from earliest to latest. // Download as much as possible, from earliest to latest.
BOOST_REVERSE_FOREACH(CBlockIndex *pindex, vToFetch) { BOOST_REVERSE_FOREACH(const CBlockIndex *pindex, vToFetch) {
if (nodestate->nBlocksInFlight >= MAX_BLOCKS_IN_TRANSIT_PER_PEER) { if (nodestate->nBlocksInFlight >= MAX_BLOCKS_IN_TRANSIT_PER_PEER) {
// Can't download any more from this peer // Can't download any more from this peer
break; break;
@ -2740,7 +2740,7 @@ bool SendMessages(CNode* pto, CConnman& connman, std::atomic<bool>& interruptMsg
bool fRevertToInv = ((!state.fPreferHeaders && bool fRevertToInv = ((!state.fPreferHeaders &&
(!state.fPreferHeaderAndIDs || pto->vBlockHashesToAnnounce.size() > 1)) || (!state.fPreferHeaderAndIDs || pto->vBlockHashesToAnnounce.size() > 1)) ||
pto->vBlockHashesToAnnounce.size() > MAX_BLOCKS_TO_ANNOUNCE); pto->vBlockHashesToAnnounce.size() > MAX_BLOCKS_TO_ANNOUNCE);
CBlockIndex *pBestIndex = NULL; // last header queued for delivery const CBlockIndex *pBestIndex = NULL; // last header queued for delivery
ProcessBlockAvailability(pto->id); // ensure pindexBestKnownBlock is up-to-date ProcessBlockAvailability(pto->id); // ensure pindexBestKnownBlock is up-to-date
if (!fRevertToInv) { if (!fRevertToInv) {
@ -2751,7 +2751,7 @@ bool SendMessages(CNode* pto, CConnman& connman, std::atomic<bool>& interruptMsg
BOOST_FOREACH(const uint256 &hash, pto->vBlockHashesToAnnounce) { BOOST_FOREACH(const uint256 &hash, pto->vBlockHashesToAnnounce) {
BlockMap::iterator mi = mapBlockIndex.find(hash); BlockMap::iterator mi = mapBlockIndex.find(hash);
assert(mi != mapBlockIndex.end()); assert(mi != mapBlockIndex.end());
CBlockIndex *pindex = mi->second; const CBlockIndex *pindex = mi->second;
if (chainActive[pindex->nHeight] != pindex) { if (chainActive[pindex->nHeight] != pindex) {
// Bail out if we reorged away from this block // Bail out if we reorged away from this block
fRevertToInv = true; fRevertToInv = true;
@ -2828,7 +2828,7 @@ bool SendMessages(CNode* pto, CConnman& connman, std::atomic<bool>& interruptMsg
const uint256 &hashToAnnounce = pto->vBlockHashesToAnnounce.back(); const uint256 &hashToAnnounce = pto->vBlockHashesToAnnounce.back();
BlockMap::iterator mi = mapBlockIndex.find(hashToAnnounce); BlockMap::iterator mi = mapBlockIndex.find(hashToAnnounce);
assert(mi != mapBlockIndex.end()); assert(mi != mapBlockIndex.end());
CBlockIndex *pindex = mi->second; const CBlockIndex *pindex = mi->second;
// Warn if we're announcing a block that is not on the main chain. // Warn if we're announcing a block that is not on the main chain.
// This should be very rare and could be optimized out. // This should be very rare and could be optimized out.
@ -3013,10 +3013,10 @@ bool SendMessages(CNode* pto, CConnman& connman, std::atomic<bool>& interruptMsg
// //
vector<CInv> vGetData; vector<CInv> vGetData;
if (!pto->fClient && (fFetch || !IsInitialBlockDownload()) && state.nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER) { if (!pto->fClient && (fFetch || !IsInitialBlockDownload()) && state.nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER) {
vector<CBlockIndex*> vToDownload; vector<const CBlockIndex*> vToDownload;
NodeId staller = -1; NodeId staller = -1;
FindNextBlocksToDownload(pto->GetId(), MAX_BLOCKS_IN_TRANSIT_PER_PEER - state.nBlocksInFlight, vToDownload, staller, consensusParams); FindNextBlocksToDownload(pto->GetId(), MAX_BLOCKS_IN_TRANSIT_PER_PEER - state.nBlocksInFlight, vToDownload, staller, consensusParams);
BOOST_FOREACH(CBlockIndex *pindex, vToDownload) { BOOST_FOREACH(const CBlockIndex *pindex, vToDownload) {
uint32_t nFetchFlags = GetFetchFlags(pto, pindex->pprev, consensusParams); uint32_t nFetchFlags = GetFetchFlags(pto, pindex->pprev, consensusParams);
vGetData.push_back(CInv(MSG_BLOCK | nFetchFlags, pindex->GetBlockHash())); vGetData.push_back(CInv(MSG_BLOCK | nFetchFlags, pindex->GetBlockHash()));
MarkBlockAsInFlight(pto->GetId(), pindex->GetBlockHash(), consensusParams, pindex); MarkBlockAsInFlight(pto->GetId(), pindex->GetBlockHash(), consensusParams, pindex);

6
src/validation.cpp
Unescape View File

@ -3030,12 +3030,14 @@ static bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state
} }
// Exposed wrapper for AcceptBlockHeader // Exposed wrapper for AcceptBlockHeader
bool ProcessNewBlockHeaders(const std::vector<CBlockHeader>& headers, CValidationState& state, const CChainParams& chainparams, CBlockIndex** ppindex) bool ProcessNewBlockHeaders(const std::vector<CBlockHeader>& headers, CValidationState& state, const CChainParams& chainparams, const CBlockIndex** ppindex)
{ {
{ {
LOCK(cs_main); LOCK(cs_main);
for (const CBlockHeader& header : headers) { for (const CBlockHeader& header : headers) {
if (!AcceptBlockHeader(header, state, chainparams, ppindex)) { // cast away the ppindex-returns-const CBlockIndex - we're just assigning it to a CBlockIndex*
// that we own and is updated non-const anyway
if (!AcceptBlockHeader(header, state, chainparams, const_cast<CBlockIndex**>(ppindex))) {
return false; return false;
} }
} }

2
src/validation.h
Unescape View File

@ -243,7 +243,7 @@ bool ProcessNewBlock(const CChainParams& chainparams, const std::shared_ptr<cons
* @param[in] chainparams The params for the chain we want to connect to * @param[in] chainparams The params for the chain we want to connect to
* @param[out] ppindex If set, the pointer will be set to point to the last new block index object for the given headers * @param[out] ppindex If set, the pointer will be set to point to the last new block index object for the given headers
*/ */
bool ProcessNewBlockHeaders(const std::vector<CBlockHeader>& block, CValidationState& state, const CChainParams& chainparams, CBlockIndex** ppindex=NULL); bool ProcessNewBlockHeaders(const std::vector<CBlockHeader>& block, CValidationState& state, const CChainParams& chainparams, const CBlockIndex** ppindex=NULL);
/** Check whether enough disk space is available for an incoming block */ /** Check whether enough disk space is available for an incoming block */
bool CheckDiskSpace(uint64_t nAdditionalBytes = 0); bool CheckDiskSpace(uint64_t nAdditionalBytes = 0);

Write Preview
Loading…
Cancel
Save