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authorMarcoFalke <falke.marco@gmail.com>2020-05-28 10:47:44 -0400
committerMarcoFalke <falke.marco@gmail.com>2020-05-28 10:47:50 -0400
commit082a417abcce6a2d6e0a52ccad5cca9657cec64b (patch)
tree737b93fee1e6a393a63fcaabe99c03be71819d3e /src
parent55b4c65bd1d829e799db7fe75fab88691830de43 (diff)
parent87766b355c47fcb0f0dcf3f6fe359eb00227d50c (diff)
downloadbitcoin-082a417abcce6a2d6e0a52ccad5cca9657cec64b.tar.xz
Merge #18635: Replace -Wthread-safety-analysis with broader -Wthread-safety
87766b355c47fcb0f0dcf3f6fe359eb00227d50c build: Replace -Wthread-safety-analysis with broader -Wthread-safety (Hennadii Stepanov) 9cc6eb3c9e0eb1d5be26fb81cc5595c131fec8f4 Get rid of -Wthread-safety-precise warnings (Hennadii Stepanov) 971a468ccf0474ca00fa7d20278569b8fb11f0fb Use template function instead of void* parameter (Hennadii Stepanov) dfb75ae49d4d617ec02188a6f449e8b8015ad467 refactor: Rename LockGuard to StdLockGuard for consistency with StdMutex (Hennadii Stepanov) 79be4874209f71ba6428a80c40c9f028ac936c41 Add thread safety annotated wrapper for std::mutex (Hennadii Stepanov) Pull request description: This PR gets rid of `-Wthread-safety-attributes` and `-Wthread-safety-precise` warnings, and replaces `-Wthread-safety-analysis` compiler option with the broader `-Wthread-safety` one. ACKs for top commit: practicalswift: ACK 87766b355c47fcb0f0dcf3f6fe359eb00227d50c -- patch looks correct ajtowns: ACK 87766b355c47fcb0f0dcf3f6fe359eb00227d50c MarcoFalke: ACK 87766b355c47fcb0f0dcf3f6fe359eb00227d50c 👍 vasild: ACK 87766b3 Tree-SHA512: b1fe29f2568c954c612f964f9022a1f02333fae4a62c8c16c45e83f5f50a27231fc60b6bd369ccd3bbdb42ef4a0f19defde350c31a62613082ffbc9d7e383a5f
Diffstat (limited to 'src')
-rw-r--r--src/blockencodings.cpp7
-rw-r--r--src/blockencodings.h2
-rw-r--r--src/logging.cpp6
-rw-r--r--src/logging.h8
-rw-r--r--src/sync.cpp5
-rw-r--r--src/sync.h6
-rw-r--r--src/threadsafety.h16
-rw-r--r--src/wallet/rpcdump.cpp4
8 files changed, 32 insertions, 22 deletions
diff --git a/src/blockencodings.cpp b/src/blockencodings.cpp
index 263d863cfa..a47709cd82 100644
--- a/src/blockencodings.cpp
+++ b/src/blockencodings.cpp
@@ -105,13 +105,12 @@ ReadStatus PartiallyDownloadedBlock::InitData(const CBlockHeaderAndShortTxIDs& c
std::vector<bool> have_txn(txn_available.size());
{
LOCK(pool->cs);
- const std::vector<std::pair<uint256, CTxMemPool::txiter> >& vTxHashes = pool->vTxHashes;
- for (size_t i = 0; i < vTxHashes.size(); i++) {
- uint64_t shortid = cmpctblock.GetShortID(vTxHashes[i].first);
+ for (size_t i = 0; i < pool->vTxHashes.size(); i++) {
+ uint64_t shortid = cmpctblock.GetShortID(pool->vTxHashes[i].first);
std::unordered_map<uint64_t, uint16_t>::iterator idit = shorttxids.find(shortid);
if (idit != shorttxids.end()) {
if (!have_txn[idit->second]) {
- txn_available[idit->second] = vTxHashes[i].second->GetSharedTx();
+ txn_available[idit->second] = pool->vTxHashes[i].second->GetSharedTx();
have_txn[idit->second] = true;
mempool_count++;
} else {
diff --git a/src/blockencodings.h b/src/blockencodings.h
index 9ec1beeaf7..326db1b4a7 100644
--- a/src/blockencodings.h
+++ b/src/blockencodings.h
@@ -126,7 +126,7 @@ class PartiallyDownloadedBlock {
protected:
std::vector<CTransactionRef> txn_available;
size_t prefilled_count = 0, mempool_count = 0, extra_count = 0;
- CTxMemPool* pool;
+ const CTxMemPool* pool;
public:
CBlockHeader header;
explicit PartiallyDownloadedBlock(CTxMemPool* poolIn) : pool(poolIn) {}
diff --git a/src/logging.cpp b/src/logging.cpp
index 41c6f5c932..fe58ae9e73 100644
--- a/src/logging.cpp
+++ b/src/logging.cpp
@@ -41,7 +41,7 @@ static int FileWriteStr(const std::string &str, FILE *fp)
bool BCLog::Logger::StartLogging()
{
- LockGuard scoped_lock(m_cs);
+ StdLockGuard scoped_lock(m_cs);
assert(m_buffering);
assert(m_fileout == nullptr);
@@ -80,7 +80,7 @@ bool BCLog::Logger::StartLogging()
void BCLog::Logger::DisconnectTestLogger()
{
- LockGuard scoped_lock(m_cs);
+ StdLockGuard scoped_lock(m_cs);
m_buffering = true;
if (m_fileout != nullptr) fclose(m_fileout);
m_fileout = nullptr;
@@ -246,7 +246,7 @@ namespace BCLog {
void BCLog::Logger::LogPrintStr(const std::string& str)
{
- LockGuard scoped_lock(m_cs);
+ StdLockGuard scoped_lock(m_cs);
std::string str_prefixed = LogEscapeMessage(str);
if (m_log_threadnames && m_started_new_line) {
diff --git a/src/logging.h b/src/logging.h
index c55f581916..7e646ef67a 100644
--- a/src/logging.h
+++ b/src/logging.h
@@ -62,7 +62,7 @@ namespace BCLog {
class Logger
{
private:
- mutable std::mutex m_cs; // Can not use Mutex from sync.h because in debug mode it would cause a deadlock when a potential deadlock was detected
+ mutable StdMutex m_cs; // Can not use Mutex from sync.h because in debug mode it would cause a deadlock when a potential deadlock was detected
FILE* m_fileout GUARDED_BY(m_cs) = nullptr;
std::list<std::string> m_msgs_before_open GUARDED_BY(m_cs);
@@ -100,14 +100,14 @@ namespace BCLog {
/** Returns whether logs will be written to any output */
bool Enabled() const
{
- LockGuard scoped_lock(m_cs);
+ StdLockGuard scoped_lock(m_cs);
return m_buffering || m_print_to_console || m_print_to_file || !m_print_callbacks.empty();
}
/** Connect a slot to the print signal and return the connection */
std::list<std::function<void(const std::string&)>>::iterator PushBackCallback(std::function<void(const std::string&)> fun)
{
- LockGuard scoped_lock(m_cs);
+ StdLockGuard scoped_lock(m_cs);
m_print_callbacks.push_back(std::move(fun));
return --m_print_callbacks.end();
}
@@ -115,7 +115,7 @@ namespace BCLog {
/** Delete a connection */
void DeleteCallback(std::list<std::function<void(const std::string&)>>::iterator it)
{
- LockGuard scoped_lock(m_cs);
+ StdLockGuard scoped_lock(m_cs);
m_print_callbacks.erase(it);
}
diff --git a/src/sync.cpp b/src/sync.cpp
index c3312b5a00..9abdedbed4 100644
--- a/src/sync.cpp
+++ b/src/sync.cpp
@@ -219,12 +219,15 @@ static bool LockHeld(void* mutex)
return false;
}
-void AssertLockHeldInternal(const char* pszName, const char* pszFile, int nLine, void* cs)
+template <typename MutexType>
+void AssertLockHeldInternal(const char* pszName, const char* pszFile, int nLine, MutexType* cs)
{
if (LockHeld(cs)) return;
tfm::format(std::cerr, "Assertion failed: lock %s not held in %s:%i; locks held:\n%s", pszName, pszFile, nLine, LocksHeld());
abort();
}
+template void AssertLockHeldInternal(const char*, const char*, int, Mutex*);
+template void AssertLockHeldInternal(const char*, const char*, int, RecursiveMutex*);
void AssertLockNotHeldInternal(const char* pszName, const char* pszFile, int nLine, void* cs)
{
diff --git a/src/sync.h b/src/sync.h
index 0c6f0ef0a7..60e5a87aec 100644
--- a/src/sync.h
+++ b/src/sync.h
@@ -52,7 +52,8 @@ void EnterCritical(const char* pszName, const char* pszFile, int nLine, void* cs
void LeaveCritical();
void CheckLastCritical(void* cs, std::string& lockname, const char* guardname, const char* file, int line);
std::string LocksHeld();
-void AssertLockHeldInternal(const char* pszName, const char* pszFile, int nLine, void* cs) ASSERT_EXCLUSIVE_LOCK(cs);
+template <typename MutexType>
+void AssertLockHeldInternal(const char* pszName, const char* pszFile, int nLine, MutexType* cs) ASSERT_EXCLUSIVE_LOCK(cs);
void AssertLockNotHeldInternal(const char* pszName, const char* pszFile, int nLine, void* cs);
void DeleteLock(void* cs);
@@ -66,7 +67,8 @@ extern bool g_debug_lockorder_abort;
void static inline EnterCritical(const char* pszName, const char* pszFile, int nLine, void* cs, bool fTry = false) {}
void static inline LeaveCritical() {}
void static inline CheckLastCritical(void* cs, std::string& lockname, const char* guardname, const char* file, int line) {}
-void static inline AssertLockHeldInternal(const char* pszName, const char* pszFile, int nLine, void* cs) ASSERT_EXCLUSIVE_LOCK(cs) {}
+template <typename MutexType>
+void static inline AssertLockHeldInternal(const char* pszName, const char* pszFile, int nLine, MutexType* cs) ASSERT_EXCLUSIVE_LOCK(cs) {}
void static inline AssertLockNotHeldInternal(const char* pszName, const char* pszFile, int nLine, void* cs) {}
void static inline DeleteLock(void* cs) {}
#endif
diff --git a/src/threadsafety.h b/src/threadsafety.h
index 81f86eac3a..942aa3fdcd 100644
--- a/src/threadsafety.h
+++ b/src/threadsafety.h
@@ -56,13 +56,19 @@
#define ASSERT_EXCLUSIVE_LOCK(...)
#endif // __GNUC__
-// LockGuard provides an annotated version of lock_guard for us
-// should only be used when sync.h Mutex/LOCK/etc aren't usable
-class SCOPED_LOCKABLE LockGuard : public std::lock_guard<std::mutex>
+// StdMutex provides an annotated version of std::mutex for us,
+// and should only be used when sync.h Mutex/LOCK/etc are not usable.
+class LOCKABLE StdMutex : public std::mutex
+{
+};
+
+// StdLockGuard provides an annotated version of std::lock_guard for us,
+// and should only be used when sync.h Mutex/LOCK/etc are not usable.
+class SCOPED_LOCKABLE StdLockGuard : public std::lock_guard<StdMutex>
{
public:
- explicit LockGuard(std::mutex& cs) EXCLUSIVE_LOCK_FUNCTION(cs) : std::lock_guard<std::mutex>(cs) { }
- ~LockGuard() UNLOCK_FUNCTION() {};
+ explicit StdLockGuard(StdMutex& cs) EXCLUSIVE_LOCK_FUNCTION(cs) : std::lock_guard<StdMutex>(cs) {}
+ ~StdLockGuard() UNLOCK_FUNCTION() {}
};
#endif // BITCOIN_THREADSAFETY_H
diff --git a/src/wallet/rpcdump.cpp b/src/wallet/rpcdump.cpp
index 7bf3d169c3..d5f6d63a46 100644
--- a/src/wallet/rpcdump.cpp
+++ b/src/wallet/rpcdump.cpp
@@ -746,7 +746,7 @@ UniValue dumpwallet(const JSONRPCRequest& request)
// the user could have gotten from another RPC command prior to now
wallet.BlockUntilSyncedToCurrentChain();
- LOCK2(pwallet->cs_wallet, spk_man.cs_KeyStore);
+ LOCK2(wallet.cs_wallet, spk_man.cs_KeyStore);
EnsureWalletIsUnlocked(&wallet);
@@ -769,7 +769,7 @@ UniValue dumpwallet(const JSONRPCRequest& request)
std::map<CKeyID, int64_t> mapKeyBirth;
const std::map<CKeyID, int64_t>& mapKeyPool = spk_man.GetAllReserveKeys();
- pwallet->GetKeyBirthTimes(mapKeyBirth);
+ wallet.GetKeyBirthTimes(mapKeyBirth);
std::set<CScriptID> scripts = spk_man.GetCScripts();