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gh-116818: Make sys.settrace, sys.setprofile, and monitoring thread-safe (#116775)

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Makes sys.settrace, sys.setprofile, and monitoring generally thread-safe.

Mostly uses a stop-the-world approach and synchronization around the code object's _co_instrumentation_version.  There may be a little bit of extra synchronization around the monitoring data that's required to be TSAN clean.
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Dino Viehland 2024-04-19 14:47:42 -07:00 • committed by GitHub
parent b45af00bad
commit 07525c9a85
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18 changed files with 530 additions and 63 deletions
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Python/ceval.c
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@ -20,6 +20,7 @@
#include "pycore_opcode_metadata.h" // EXTRA_CASES
#include "pycore_optimizer.h" // _PyUOpExecutor_Type
#include "pycore_opcode_utils.h" // MAKE_FUNCTION_*
#include "pycore_pyatomic_ft_wrappers.h" // FT_ATOMIC_LOAD_PTR_ACQUIRE
#include "pycore_pyerrors.h" // _PyErr_GetRaisedException()
#include "pycore_pystate.h" // _PyInterpreterState_GET()
#include "pycore_range.h" // _PyRangeIterObject