Commit Graph

17 Commits

Author SHA1 Message Date
Cory Fields
3ddd554d31 tests: Add Assertions in reverse_lock tests to exercise thread-safety annotations 2025-08-22 14:25:39 +00:00
Cory Fields
de4eef52d1 threading: use correct mutex name in reverse_lock fatal error messages
Now that REVERSE_LOCK requires the name of the actual mutex, it can be used for
better error messages.
2025-07-07 10:34:05 -04:00
Cory Fields
a201a99f8c thread-safety: fix annotations with REVERSE_LOCK
Without proper annotations, clang thinks that mutexes are still held for the
duration of a reverse_lock. This could lead to subtle bugs as
EXCLUSIVE_LOCKS_REQUIRED(foo) passes when it shouldn't.

As mentioned in the docs [0], clang's thread-safety analyzer is unable to deal
with aliases of mutexes, so it is not possible to use the lock's copy of the
mutex for that purpose. Instead, the original mutex needs to be passed back to
the reverse_lock for the sake of thread-safety analysis, but it is not actually
used otherwise.

[0]: https://clang.llvm.org/docs/ThreadSafetyAnalysis.html
2025-06-16 18:09:14 +00:00
Hennadii Stepanov
f47dda2c58 scripted-diff: Bump copyright headers
-BEGIN VERIFY SCRIPT-
./contrib/devtools/copyright_header.py update ./
-END VERIFY SCRIPT-

Commits of previous years:
* 2020: fa0074e2d8
* 2019: aaaaad6ac9
2021-12-30 19:36:57 +02:00
fanquake
1aee83421f test: remove BasicTestingSetup from reverse_lock unit tests 2021-05-28 19:14:09 +08:00
Hennadii Stepanov
c5e3e74f70 sync: Improve CheckLastCritical()
This commit adds actual lock stack logging if check fails.
2020-12-10 20:46:29 +02:00
MarcoFalke
fa488f131f scripted-diff: Bump copyright headers
-BEGIN VERIFY SCRIPT-
./contrib/devtools/copyright_header.py update ./
-END VERIFY SCRIPT-
2020-04-16 13:33:09 -04:00
Anthony Towns
b9c4260127 sync.h: add REVERSE_LOCK 2020-03-06 23:13:31 +10:00
MarcoFalke
faec28252c scripted-diff: test: Move setup_common to test library
-BEGIN VERIFY SCRIPT-
 # Move files
 for f in $(git ls-files src/test/lib/); do git mv $f src/test/util/; done
 git mv src/test/setup_common.cpp                     src/test/util/
 git mv src/test/setup_common.h                       src/test/util/
 # Replace Windows paths
 sed -i -e 's|\\setup_common|\\util\\setup_common|g' $(git grep -l '\\setup_common')
 sed -i -e 's|src\\test\\lib\\|src\\test\\util\\|g'  build_msvc/test_bitcoin/test_bitcoin.vcxproj
 # Everything else
 sed -i -e 's|/setup_common|/util/setup_common|g'    $(git grep -l 'setup_common')
 sed -i -e 's|test/lib/|test/util/|g'                $(git grep -l 'test/lib/')
 # Fix include guard
 sed -i -e 's|BITCOIN_TEST_SETUP_COMMON_H|BITCOIN_TEST_UTIL_SETUP_COMMON_H|g' ./src/test/util/setup_common.h
 sed -i -e 's|BITCOIN_TEST_LIB_|BITCOIN_TEST_UTIL_|g'                     $(git grep -l 'BITCOIN_TEST_LIB_')
-END VERIFY SCRIPT-
2019-11-06 11:56:41 -05:00
MarcoFalke
faf400077d scripted-diff: Bump copyright headers in test, bench
-BEGIN VERIFY SCRIPT-
./contrib/devtools/copyright_header.py update ./src/bench/
./contrib/devtools/copyright_header.py update ./src/test/
-END VERIFY SCRIPT-
2019-04-11 13:34:43 -04:00
MarcoFalke
fa821904bf scripted-diff: Rename test_bitcoin to test/setup_common
-BEGIN VERIFY SCRIPT-
sed -i --regexp-extended -e 's/test_bitcoin\.(h|cpp)/setup_common.\1/g' $(git grep -l test_bitcoin)
git mv ./src/test/test_bitcoin.h   ./src/test/setup_common.h
git mv ./src/test/test_bitcoin.cpp ./src/test/setup_common.cpp
sed -i -e 's/BITCOIN_TEST_TEST_BITCOIN_H/BITCOIN_TEST_SETUP_COMMON_H/g' ./src/test/setup_common.h
-END VERIFY SCRIPT-
2019-04-11 10:12:36 -04:00
DrahtBot
eb7daf4d60 Update copyright headers to 2018 2018-07-27 07:15:02 -04:00
Akira Takizawa
595a7bab23 Increment MIT Licence copyright header year on files modified in 2017 2018-01-03 02:26:56 +09:00
MeshCollider
1a445343f6 scripted-diff: Replace #include "" with #include <> (ryanofsky)
-BEGIN VERIFY SCRIPT-
for f in \
  src/*.cpp \
  src/*.h \
  src/bench/*.cpp \
  src/bench/*.h \
  src/compat/*.cpp \
  src/compat/*.h \
  src/consensus/*.cpp \
  src/consensus/*.h \
  src/crypto/*.cpp \
  src/crypto/*.h \
  src/crypto/ctaes/*.h \
  src/policy/*.cpp \
  src/policy/*.h \
  src/primitives/*.cpp \
  src/primitives/*.h \
  src/qt/*.cpp \
  src/qt/*.h \
  src/qt/test/*.cpp \
  src/qt/test/*.h \
  src/rpc/*.cpp \
  src/rpc/*.h \
  src/script/*.cpp \
  src/script/*.h \
  src/support/*.cpp \
  src/support/*.h \
  src/support/allocators/*.h \
  src/test/*.cpp \
  src/test/*.h \
  src/wallet/*.cpp \
  src/wallet/*.h \
  src/wallet/test/*.cpp \
  src/wallet/test/*.h \
  src/zmq/*.cpp \
  src/zmq/*.h
do
  base=${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-
2017-11-16 08:23:01 +13:00
isle2983
27765b6403 Increment MIT Licence copyright header year on files modified in 2016
Edited via:

$ contrib/devtools/copyright_header.py update .
2016-12-31 11:01:21 -07:00
Cory Fields
89f71c68c0 c++11: don't throw from the reverselock destructor
noexcept is default for destructors as of c++11. By throwing in reverselock's
destructor if it's lock has been tampered with, the likely result is
std::terminate being called. Indeed that happened before this change.

Once reverselock has taken another lock (its ctor didn't throw), it makes no
sense to try to grab or lock the parent lock. That is be broken/undefined
behavior depending on the parent lock's implementation, but it shouldn't cause
the reverselock to fail to re-lock when destroyed.

To avoid those problems, simply swap the parent lock's contents with a dummy
for the duration of the lock. That will ensure that any undefined behavior is
caught at the call-site rather than the reverse lock's destruction.

Barring a failed mutex unlock which would be indicative of a larger problem,
the destructor should now never throw.
2016-01-05 17:17:29 -05:00
Casey Rodarmor
86270c8164 Replace boost::reverse_lock with our own. 2015-09-03 15:13:40 -04:00