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2020-12-10sync: Improve CheckLastCritical()Hennadii Stepanov
This commit adds actual lock stack logging if check fails.
2020-11-26sync: const-qualify the argument of double_lock_detected()Vasil Dimov
It is not modified in the function, so should be `const`.
2020-11-26sync: print proper lock order location when double lock is detectedVasil Dimov
Before: ``` Assertion failed: detected double lock at src/sync.cpp:153, details in debug log. ``` After: ``` Assertion failed: detected double lock for 'm' in src/test/sync_tests.cpp:40 (in thread ''), details in debug log. ```
2020-11-25Merge #19337: sync: detect double lock from the same threadWladimir J. van der Laan
95975dd08d8fdaaeaf28e0d06b861ce2748c17b6 sync: detect double lock from the same thread (Vasil Dimov) 4df6567e4cbb4677e8048de2f8008612e1b860b9 sync: make EnterCritical() & push_lock() type safe (Vasil Dimov) Pull request description: Double lock of the same (non-recursive) mutex from the same thread would produce an undefined behavior. Detect this from `DEBUG_LOCKORDER` and react similarly to the deadlock detection. This came up during discussion in another, related PR: https://github.com/bitcoin/bitcoin/pull/19238#discussion_r442394521. ACKs for top commit: laanwj: code review ACK 95975dd08d8fdaaeaf28e0d06b861ce2748c17b6 hebasto: re-ACK 95975dd08d8fdaaeaf28e0d06b861ce2748c17b6 Tree-SHA512: 375c62db7819e348bfaecc3bd82a7907fcd8f5af24f7d637ac82f3f16789da9fc127dbd0e37158a08e0dcbba01a55c6635caf1d8e9e827cf5a3747f7690a498e
2020-08-29sync.h: Make runtime lock checks require compile-time lock checksAnthony Towns
2020-08-10sync: detect double lock from the same threadVasil Dimov
Double lock of the same (non-recursive) mutex from the same thread is producing an undefined behavior. Detect this from DEBUG_LOCKORDER and react similarly to the deadlock detection.
2020-08-05sync: make EnterCritical() & push_lock() type safeVasil Dimov
The functions `EnterCritical()` and `push_lock()` take a pointer to a mutex, but that pointer used to be of type `void*` because we use a few different types for mutexes. This `void*` argument was not type safe because somebody could have send a pointer to anything that is not a mutex. Furthermore it wouldn't allow to check whether the passed mutex is recursive or not. Thus, change the functions to templated ones so that we can implement stricter checks for non-recursive mutexes. This also simplifies the callers of `EnterCritical()`.
2020-08-02test: Add LockStackEmpty()Hennadii Stepanov
2020-08-02Preserve initial state if push_lock() throws exceptionHennadii Stepanov
2020-06-25Improve "detected inconsistent lock order" error messageHennadii Stepanov
2020-06-22test: Improve "potential deadlock detected" exception messageHennadii Stepanov
2020-06-22Fix mistakenly swapped "previous" and "current" lock ordersHennadii Stepanov
2020-05-28Use template function instead of void* parameterHennadii Stepanov
This change gets rid of -Wthread-safety-attributes warning spam.
2020-05-22doc: Add and fix comments about never destroyed objectsHennadii Stepanov
2020-05-19Replace thread_local g_lockstack with a mutex-protected mapHennadii Stepanov
This change prevents UB in case of early g_lockstack destroying. Co-authored-by: Wladimir J. van der Laan <laanwj@protonmail.com>
2020-05-19refactor: Refactor duplicated code into LockHeld()Hennadii Stepanov
2020-05-19refactor: Add LockPair type aliasHennadii Stepanov
2020-05-19refactor: Add LockStackItem type aliasHennadii Stepanov
2020-05-19Prevent UB in DeleteLock() functionHennadii Stepanov
2020-03-27util: Remove unused itostrMarcoFalke
2020-03-06sync.h: add REVERSE_LOCKAnthony Towns
2020-01-15scripted-diff: Bump copyright of files changed in 2020MarcoFalke
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT-
2020-01-15scripted-diff: Replace CCriticalSection with RecursiveMutexMarcoFalke
-BEGIN VERIFY SCRIPT- # Delete outdated alias for RecursiveMutex sed -i -e '/CCriticalSection/d' ./src/sync.h # Replace use of outdated alias with RecursiveMutex sed -i -e 's/CCriticalSection/RecursiveMutex/g' $(git grep -l CCriticalSection) -END VERIFY SCRIPT-
2019-12-30scripted-diff: Bump copyright of files changed in 2019MarcoFalke
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT-
2019-10-28refactor: Remove redundant c_str() calls in formattingWladimir J. van der Laan
Our formatter, tinyformat, *never* needs `c_str()` for strings. Remove redundant `c_str()` calls for: - `strprintf` - `LogPrintf` - `tfm::format`
2019-10-15Remove unused includespracticalswift
2019-06-13Replace remaining fprintf with tfm::format manuallyMarcoFalke
2019-06-13scripted-diff: Replace fprintf with tfm::formatMarcoFalke
-BEGIN VERIFY SCRIPT- sed -i --regexp-extended -e 's/fprintf\(std(err|out), /tfm::format(std::c\1, /g' $(git grep -l 'fprintf(' -- ':(exclude)src/crypto' ':(exclude)src/leveldb' ':(exclude)src/univalue' ':(exclude)src/secp256k1') -END VERIFY SCRIPT- fixup! scripted-diff: Replace fprintf with tfm::format
2019-05-07fix static_assert for macro HAVE_THREAD_LOCALorient
fix static_assert for macro HAVE_THREAD_LOCAL while define DEBUG_LOCKCONTENTION
2019-04-29threads: add thread names to deadlock debugging messageJames O'Beirne
Also refactor CLockLocation to use an initialization list.
2019-01-25Prevent mutex lock fail even if --enable-debugAkio Nakamura
This PR intends to resolve #15227. "configure --debug-enabled" enables "#ifdef DEBUG_LOCKORDER". Then "lockdata" (in sync.cpp) will be initialized same as other static objects. But unfortunately, lockdata.push_lock() was called before its initialization (via initializing signatureCache which is declared in script/sigcache.cpp) on macOS. This PR apply the "Construct On First Use Idiom" to "lockdata" to prevent it.
2018-11-04scripted-diff: Move util files to separate directory.Jim Posen
-BEGIN VERIFY SCRIPT- mkdir -p src/util git mv src/util.h src/util/system.h git mv src/util.cpp src/util/system.cpp git mv src/utilmemory.h src/util/memory.h git mv src/utilmoneystr.h src/util/moneystr.h git mv src/utilmoneystr.cpp src/util/moneystr.cpp git mv src/utilstrencodings.h src/util/strencodings.h git mv src/utilstrencodings.cpp src/util/strencodings.cpp git mv src/utiltime.h src/util/time.h git mv src/utiltime.cpp src/util/time.cpp sed -i 's/<util\.h>/<util\/system\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilmemory\.h>/<util\/memory\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilmoneystr\.h>/<util\/moneystr\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utilstrencodings\.h>/<util\/strencodings\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/<utiltime\.h>/<util\/time\.h>/g' $(git ls-files 'src/*.h' 'src/*.cpp') sed -i 's/BITCOIN_UTIL_H/BITCOIN_UTIL_SYSTEM_H/g' src/util/system.h sed -i 's/BITCOIN_UTILMEMORY_H/BITCOIN_UTIL_MEMORY_H/g' src/util/memory.h sed -i 's/BITCOIN_UTILMONEYSTR_H/BITCOIN_UTIL_MONEYSTR_H/g' src/util/moneystr.h sed -i 's/BITCOIN_UTILSTRENCODINGS_H/BITCOIN_UTIL_STRENCODINGS_H/g' src/util/strencodings.h sed -i 's/BITCOIN_UTILTIME_H/BITCOIN_UTIL_TIME_H/g' src/util/time.h sed -i 's/ util\.\(h\|cpp\)/ util\/system\.\1/g' src/Makefile.am sed -i 's/utilmemory\.\(h\|cpp\)/util\/memory\.\1/g' src/Makefile.am sed -i 's/utilmoneystr\.\(h\|cpp\)/util\/moneystr\.\1/g' src/Makefile.am sed -i 's/utilstrencodings\.\(h\|cpp\)/util\/strencodings\.\1/g' src/Makefile.am sed -i 's/utiltime\.\(h\|cpp\)/util\/time\.\1/g' src/Makefile.am sed -i 's/-> util ->/-> util\/system ->/' test/lint/lint-circular-dependencies.sh sed -i 's/src\/util\.cpp/src\/util\/system\.cpp/g' test/lint/lint-format-strings.py test/lint/lint-locale-dependence.sh sed -i 's/src\/utilmoneystr\.cpp/src\/util\/moneystr\.cpp/g' test/lint/lint-locale-dependence.sh sed -i 's/src\/utilstrencodings\.\(h\|cpp\)/src\/util\/strencodings\.\1/g' test/lint/lint-locale-dependence.sh sed -i 's/src\\utilstrencodings\.cpp/src\\util\\strencodings\.cpp/' build_msvc/libbitcoinconsensus/libbitcoinconsensus.vcxproj -END VERIFY SCRIPT-
2018-08-31Merge #11640: Make LOCK, LOCK2, TRY_LOCK work with CWaitableCriticalSectionWladimir J. van der Laan
9c4dc597ddc66acfd58a945a5ab11f833731abba Use LOCK macros for non-recursive locks (Russell Yanofsky) 1382913e61f5db6ba849b1e261e8aefcd5a1ae68 Make LOCK, LOCK2, TRY_LOCK work with CWaitableCriticalSection (Russell Yanofsky) ba1f095aadf29bddb0bd8176d2e0b908f92a5623 MOVEONLY Move AnnotatedMixin declaration (Russell Yanofsky) 41b88e93375d57db12da923f45f87b9a2db8e730 Add unit test for DEBUG_LOCKORDER code (Russell Yanofsky) Pull request description: Make LOCK macros work with non-recursive mutexes, and use wherever possible for better deadlock detection. Also add unit test for DEBUG_LOCKORDER code. Tree-SHA512: 64ef209307f28ecd0813a283f15c6406138c6ffe7f6cbbd084161044db60e2c099a7d0d2edcd1c5e7770a115e9b931b486e86c9a777bdc96d2e8a9f4dc192942
2018-08-03Add unit test for DEBUG_LOCKORDER codeRussell Yanofsky
2018-07-27Update copyright headers to 2018DrahtBot
2018-05-22qa: Initialize lockstack to prevent null pointer derefMarcoFalke
2018-05-17break circular dependency: random/sync -> util -> random/syncChun Kuan Lee
2018-04-07[logging] Comment all continuing logs.John Newbery
Most logs should terminated with a '\n'. Some logs are built up over multiple calls to logPrintf(), so do not need a newline terminater. Comment all of these 'continued' logs as a linter hing.
2018-04-05Merge #12859: Bugfix: Include <memory> for std::unique_ptrWladimir J. van der Laan
a5bca13 Bugfix: Include <memory> for std::unique_ptr (Luke Dashjr) Pull request description: Not sure why all these includes were missing, but it's breaking builds for some users: https://bugs.gentoo.org/show_bug.cgi?id=652142 (Added to all files with a reference to `std::unique_ptr`) Tree-SHA512: 8a2c67513ca07b9bb52c34e8a20b15e56f8af2530310d9ee9b0a69694dd05e02e7a3683f14101a2685d457672b56addec591a0bb83900a0eb8e2a43d43200509
2018-04-02Bugfix: Include <memory> for std::unique_ptrLuke Dashjr
2018-01-28Fix typospracticalswift
2018-01-03Increment MIT Licence copyright header year on files modified in 2017Akira Takizawa
2017-11-27threads: add a thread_local autoconf checkCory Fields
2017-11-18Switched sync.{cpp,h} to std threading primitives.Thomas Snider
2017-11-16scripted-diff: Replace #include "" with #include <> (ryanofsky)MeshCollider
-BEGIN VERIFY SCRIPT- for f in \ src/*.cpp \ src/*.h \ src/bench/*.cpp \ src/bench/*.h \ src/compat/*.cpp \ src/compat/*.h \ src/consensus/*.cpp \ src/consensus/*.h \ src/crypto/*.cpp \ src/crypto/*.h \ src/crypto/ctaes/*.h \ src/policy/*.cpp \ src/policy/*.h \ src/primitives/*.cpp \ src/primitives/*.h \ src/qt/*.cpp \ src/qt/*.h \ src/qt/test/*.cpp \ src/qt/test/*.h \ src/rpc/*.cpp \ src/rpc/*.h \ src/script/*.cpp \ src/script/*.h \ src/support/*.cpp \ src/support/*.h \ src/support/allocators/*.h \ src/test/*.cpp \ src/test/*.h \ src/wallet/*.cpp \ src/wallet/*.h \ src/wallet/test/*.cpp \ src/wallet/test/*.h \ src/zmq/*.cpp \ src/zmq/*.h do base=${f%/*}/ relbase=${base#src/} sed -i "s:#include \"\(.*\)\"\(.*\):if test -e \$base'\\1'; then echo \"#include <\"\$relbase\"\\1>\\2\"; else echo \"#include <\\1>\\2\"; fi:e" $f done -END VERIFY SCRIPT-
2017-10-13Add ability to assert a lock is not held in DEBUG_LOCKORDERMatt Corallo
2017-09-30Remove unused fTry from push_lockJoão Barbosa
2017-08-16Use nullptr instead of zero (0) as the null pointer constantpracticalswift
2017-08-07scripted-diff: Use the C++11 keyword nullptr to denote the pointer literal ↵practicalswift
instead of the macro NULL -BEGIN VERIFY SCRIPT- sed -i 's/\<NULL\>/nullptr/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h src/qt/*/*.cpp src/qt/*/*.h src/wallet/*/*.cpp src/wallet/*/*.h src/support/allocators/*.h sed -i 's/Prefer nullptr, otherwise SAFECOOKIE./Prefer NULL, otherwise SAFECOOKIE./g' src/torcontrol.cpp sed -i 's/tor: Using nullptr authentication/tor: Using NULL authentication/g' src/torcontrol.cpp sed -i 's/METHODS=nullptr/METHODS=NULL/g' src/test/torcontrol_tests.cpp src/torcontrol.cpp sed -i 's/nullptr certificates/NULL certificates/g' src/qt/paymentserver.cpp sed -i 's/"nullptr"/"NULL"/g' src/torcontrol.cpp src/test/torcontrol_tests.cpp -END VERIFY SCRIPT-
2017-06-22scripted-diff: Remove #include <boost/foreach.hpp>Jorge Timón
-BEGIN VERIFY SCRIPT- sed -i ':a;N;$!ba;s/#include <boost\/foreach.hpp>\n//' ./src/*.h ./src/*.cpp ./src/*/*.h ./src/*/*.cpp ./src/*/*/*.h ./src/*/*/*.cpp -END VERIFY SCRIPT-
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