From 3e9f6c821beb58f882356141efe9140e66d00c0d Mon Sep 17 00:00:00 2001 From: practicalswift Date: Mon, 8 Oct 2018 15:50:09 +0200 Subject: [PATCH] Add missing locks and locking annotations for CAddrMan --- src/addrman.h | 53 +++++++++++++++++++------------------- src/test/addrman_tests.cpp | 4 +++ 2 files changed, 31 insertions(+), 26 deletions(-) diff --git a/src/addrman.h b/src/addrman.h index a36f7ea1002c8..d220e763b35bb 100644 --- a/src/addrman.h +++ b/src/addrman.h @@ -187,36 +187,37 @@ class CAddrInfo : public CAddress */ class CAddrMan { -private: +protected: //! critical section to protect the inner data structures mutable CCriticalSection cs; +private: //! last used nId - int nIdCount; + int nIdCount GUARDED_BY(cs); //! table with information about all nIds - std::map mapInfo; + std::map mapInfo GUARDED_BY(cs); //! find an nId based on its network address - std::map mapAddr; + std::map mapAddr GUARDED_BY(cs); //! randomly-ordered vector of all nIds - std::vector vRandom; + std::vector vRandom GUARDED_BY(cs); // number of "tried" entries - int nTried; + int nTried GUARDED_BY(cs); //! list of "tried" buckets - int vvTried[ADDRMAN_TRIED_BUCKET_COUNT][ADDRMAN_BUCKET_SIZE]; + int vvTried[ADDRMAN_TRIED_BUCKET_COUNT][ADDRMAN_BUCKET_SIZE] GUARDED_BY(cs); //! number of (unique) "new" entries - int nNew; + int nNew GUARDED_BY(cs); //! list of "new" buckets - int vvNew[ADDRMAN_NEW_BUCKET_COUNT][ADDRMAN_BUCKET_SIZE]; + int vvNew[ADDRMAN_NEW_BUCKET_COUNT][ADDRMAN_BUCKET_SIZE] GUARDED_BY(cs); //! last time Good was called (memory only) - int64_t nLastGood; + int64_t nLastGood GUARDED_BY(cs); //! Holds addrs inserted into tried table that collide with existing entries. Test-before-evict discipline used to resolve these collisions. std::set m_tried_collisions; @@ -229,58 +230,58 @@ class CAddrMan FastRandomContext insecure_rand; //! Find an entry. - CAddrInfo* Find(const CNetAddr& addr, int *pnId = nullptr); + CAddrInfo* Find(const CNetAddr& addr, int *pnId = nullptr) EXCLUSIVE_LOCKS_REQUIRED(cs); //! find an entry, creating it if necessary. //! nTime and nServices of the found node are updated, if necessary. - CAddrInfo* Create(const CAddress &addr, const CNetAddr &addrSource, int *pnId = nullptr); + CAddrInfo* Create(const CAddress &addr, const CNetAddr &addrSource, int *pnId = nullptr) EXCLUSIVE_LOCKS_REQUIRED(cs); //! Swap two elements in vRandom. - void SwapRandom(unsigned int nRandomPos1, unsigned int nRandomPos2); + void SwapRandom(unsigned int nRandomPos1, unsigned int nRandomPos2) EXCLUSIVE_LOCKS_REQUIRED(cs); //! Move an entry from the "new" table(s) to the "tried" table - void MakeTried(CAddrInfo& info, int nId); + void MakeTried(CAddrInfo& info, int nId) EXCLUSIVE_LOCKS_REQUIRED(cs); //! Delete an entry. It must not be in tried, and have refcount 0. - void Delete(int nId); + void Delete(int nId) EXCLUSIVE_LOCKS_REQUIRED(cs); //! Clear a position in a "new" table. This is the only place where entries are actually deleted. - void ClearNew(int nUBucket, int nUBucketPos); + void ClearNew(int nUBucket, int nUBucketPos) EXCLUSIVE_LOCKS_REQUIRED(cs); //! Mark an entry "good", possibly moving it from "new" to "tried". - void Good_(const CService &addr, bool test_before_evict, int64_t time); + void Good_(const CService &addr, bool test_before_evict, int64_t time) EXCLUSIVE_LOCKS_REQUIRED(cs); //! Add an entry to the "new" table. - bool Add_(const CAddress &addr, const CNetAddr& source, int64_t nTimePenalty); + bool Add_(const CAddress &addr, const CNetAddr& source, int64_t nTimePenalty) EXCLUSIVE_LOCKS_REQUIRED(cs); //! Mark an entry as attempted to connect. - void Attempt_(const CService &addr, bool fCountFailure, int64_t nTime); + void Attempt_(const CService &addr, bool fCountFailure, int64_t nTime) EXCLUSIVE_LOCKS_REQUIRED(cs); //! Select an address to connect to, if newOnly is set to true, only the new table is selected from. - CAddrInfo Select_(bool newOnly); + CAddrInfo Select_(bool newOnly) EXCLUSIVE_LOCKS_REQUIRED(cs); //! See if any to-be-evicted tried table entries have been tested and if so resolve the collisions. - void ResolveCollisions_(); + void ResolveCollisions_() EXCLUSIVE_LOCKS_REQUIRED(cs); //! Return a random to-be-evicted tried table address. - CAddrInfo SelectTriedCollision_(); + CAddrInfo SelectTriedCollision_() EXCLUSIVE_LOCKS_REQUIRED(cs); //! Wraps GetRandInt to allow tests to override RandomInt and make it determinismistic. virtual int RandomInt(int nMax); #ifdef DEBUG_ADDRMAN //! Perform consistency check. Returns an error code or zero. - int Check_(); + int Check_() EXCLUSIVE_LOCKS_REQUIRED(cs); #endif //! Select several addresses at once. - void GetAddr_(std::vector &vAddr); + void GetAddr_(std::vector &vAddr) EXCLUSIVE_LOCKS_REQUIRED(cs); //! Mark an entry as currently-connected-to. - void Connected_(const CService &addr, int64_t nTime); + void Connected_(const CService &addr, int64_t nTime) EXCLUSIVE_LOCKS_REQUIRED(cs); //! Update an entry's service bits. - void SetServices_(const CService &addr, ServiceFlags nServices); + void SetServices_(const CService &addr, ServiceFlags nServices) EXCLUSIVE_LOCKS_REQUIRED(cs); public: /** diff --git a/src/test/addrman_tests.cpp b/src/test/addrman_tests.cpp index ee3650d148a02..fbe438092efd3 100644 --- a/src/test/addrman_tests.cpp +++ b/src/test/addrman_tests.cpp @@ -40,22 +40,26 @@ class CAddrManTest : public CAddrMan CAddrInfo* Find(const CNetAddr& addr, int* pnId = nullptr) { + LOCK(cs); return CAddrMan::Find(addr, pnId); } CAddrInfo* Create(const CAddress& addr, const CNetAddr& addrSource, int* pnId = nullptr) { + LOCK(cs); return CAddrMan::Create(addr, addrSource, pnId); } void Delete(int nId) { + LOCK(cs); CAddrMan::Delete(nId); } // Simulates connection failure so that we can test eviction of offline nodes void SimConnFail(CService& addr) { + LOCK(cs); int64_t nLastSuccess = 1; Good_(addr, true, nLastSuccess); // Set last good connection in the deep past.