diff options
author | John Newbery <john@johnnewbery.com> | 2020-09-07 18:12:19 +0100 |
---|---|---|
committer | John Newbery <john@johnnewbery.com> | 2020-12-07 11:55:28 +0000 |
commit | ed7e469ceec6f7101a3fb7b15c21a6fb69697866 (patch) | |
tree | fe29c60491ef45e0a335e6bb52d39430916c709e /src | |
parent | a529fd3e3f2391e592ac937e291fec51e067ea2e (diff) |
[net_processing] Move peer_map to PeerManager
Diffstat (limited to 'src')
-rw-r--r-- | src/net_processing.cpp | 67 | ||||
-rw-r--r-- | src/net_processing.h | 48 |
2 files changed, 59 insertions, 56 deletions
diff --git a/src/net_processing.cpp b/src/net_processing.cpp index d65b066dbd..ec8d644813 100644 --- a/src/net_processing.cpp +++ b/src/net_processing.cpp @@ -422,58 +422,6 @@ static CNodeState *State(NodeId pnode) EXCLUSIVE_LOCKS_REQUIRED(cs_main) { return &it->second; } -/** - * Data structure for an individual peer. This struct is not protected by - * cs_main since it does not contain validation-critical data. - * - * Memory is owned by shared pointers and this object is destructed when - * the refcount drops to zero. - * - * TODO: move most members from CNodeState to this structure. - * TODO: move remaining application-layer data members from CNode to this structure. - */ -struct Peer { - /** Same id as the CNode object for this peer */ - const NodeId m_id{0}; - - /** Protects misbehavior data members */ - Mutex m_misbehavior_mutex; - /** Accumulated misbehavior score for this peer */ - int m_misbehavior_score GUARDED_BY(m_misbehavior_mutex){0}; - /** Whether this peer should be disconnected and marked as discouraged (unless it has the noban permission). */ - bool m_should_discourage GUARDED_BY(m_misbehavior_mutex){false}; - - /** Set of txids to reconsider once their parent transactions have been accepted **/ - std::set<uint256> m_orphan_work_set GUARDED_BY(g_cs_orphans); - - /** Protects m_getdata_requests **/ - Mutex m_getdata_requests_mutex; - /** Work queue of items requested by this peer **/ - std::deque<CInv> m_getdata_requests GUARDED_BY(m_getdata_requests_mutex); - - explicit Peer(NodeId id) : m_id(id) {} -}; - -using PeerRef = std::shared_ptr<Peer>; - -/** - * Map of all Peer objects, keyed by peer id. This map is protected - * by the global g_peer_mutex. Once a shared pointer reference is - * taken, the lock may be released. Individual fields are protected by - * their own locks. - */ -Mutex g_peer_mutex; -static std::map<NodeId, PeerRef> g_peer_map GUARDED_BY(g_peer_mutex); - -/** Get a shared pointer to the Peer object. - * May return nullptr if the Peer object can't be found. */ -static PeerRef GetPeerRef(NodeId id) -{ - LOCK(g_peer_mutex); - auto it = g_peer_map.find(id); - return it != g_peer_map.end() ? it->second : nullptr; -} - static void UpdatePreferredDownload(const CNode& node, CNodeState* state) EXCLUSIVE_LOCKS_REQUIRED(cs_main) { nPreferredDownload -= state->fPreferredDownload; @@ -807,8 +755,8 @@ void PeerManager::InitializeNode(CNode *pnode) { } { PeerRef peer = std::make_shared<Peer>(nodeid); - LOCK(g_peer_mutex); - g_peer_map.emplace_hint(g_peer_map.end(), nodeid, std::move(peer)); + LOCK(m_peer_mutex); + m_peer_map.emplace_hint(m_peer_map.end(), nodeid, std::move(peer)); } if (!pnode->IsInboundConn()) { PushNodeVersion(*pnode, m_connman, GetTime()); @@ -845,8 +793,8 @@ void PeerManager::FinalizeNode(const CNode& node, bool& fUpdateConnectionTime) { PeerRef peer = GetPeerRef(nodeid); assert(peer != nullptr); misbehavior = WITH_LOCK(peer->m_misbehavior_mutex, return peer->m_misbehavior_score); - LOCK(g_peer_mutex); - g_peer_map.erase(nodeid); + LOCK(m_peer_mutex); + m_peer_map.erase(nodeid); } CNodeState *state = State(nodeid); assert(state != nullptr); @@ -887,6 +835,13 @@ void PeerManager::FinalizeNode(const CNode& node, bool& fUpdateConnectionTime) { LogPrint(BCLog::NET, "Cleared nodestate for peer=%d\n", nodeid); } +PeerRef PeerManager::GetPeerRef(NodeId id) +{ + LOCK(m_peer_mutex); + auto it = m_peer_map.find(id); + return it != m_peer_map.end() ? it->second : nullptr; +} + bool PeerManager::GetNodeStateStats(NodeId nodeid, CNodeStateStats &stats) { { LOCK(cs_main); diff --git a/src/net_processing.h b/src/net_processing.h index 8f4ba4c0bb..0697cf82c3 100644 --- a/src/net_processing.h +++ b/src/net_processing.h @@ -39,6 +39,40 @@ struct CNodeStateStats { std::vector<int> vHeightInFlight; }; +/** + * Data structure for an individual peer. This struct is not protected by + * cs_main since it does not contain validation-critical data. + * + * Memory is owned by shared pointers and this object is destructed when + * the refcount drops to zero. + * + * TODO: move most members from CNodeState to this structure. + * TODO: move remaining application-layer data members from CNode to this structure. + */ +struct Peer { + /** Same id as the CNode object for this peer */ + const NodeId m_id{0}; + + /** Protects misbehavior data members */ + Mutex m_misbehavior_mutex; + /** Accumulated misbehavior score for this peer */ + int m_misbehavior_score GUARDED_BY(m_misbehavior_mutex){0}; + /** Whether this peer should be disconnected and marked as discouraged (unless it has the noban permission). */ + bool m_should_discourage GUARDED_BY(m_misbehavior_mutex){false}; + + /** Set of txids to reconsider once their parent transactions have been accepted **/ + std::set<uint256> m_orphan_work_set GUARDED_BY(g_cs_orphans); + + /** Protects m_getdata_requests **/ + Mutex m_getdata_requests_mutex; + /** Work queue of items requested by this peer **/ + std::deque<CInv> m_getdata_requests GUARDED_BY(m_getdata_requests_mutex); + + explicit Peer(NodeId id) : m_id(id) {} +}; + +using PeerRef = std::shared_ptr<Peer>; + class PeerManager final : public CValidationInterface, public NetEventsInterface { public: PeerManager(const CChainParams& chainparams, CConnman& connman, BanMan* banman, @@ -105,6 +139,10 @@ public: bool GetNodeStateStats(NodeId nodeid, CNodeStateStats& stats); private: + /** Get a shared pointer to the Peer object. + * May return an empty shared_ptr if the Peer object can't be found. */ + PeerRef GetPeerRef(NodeId id); + /** * Potentially mark a node discouraged based on the contents of a BlockValidationState object * @@ -153,6 +191,16 @@ private: TxRequestTracker m_txrequest GUARDED_BY(::cs_main); int64_t m_stale_tip_check_time; //!< Next time to check for stale tip + + /** Protects m_peer_map */ + Mutex m_peer_mutex; + /** + * Map of all Peer objects, keyed by peer id. This map is protected + * by the m_peer_mutex. Once a shared pointer reference is + * taken, the lock may be released. Individual fields are protected by + * their own locks. + */ + std::map<NodeId, PeerRef> m_peer_map GUARDED_BY(m_peer_mutex); }; /** Relay transaction to every node */ |