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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/pystate.c
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@ -399,6 +399,7 @@ _Py_COMP_DIAG_POP
&(runtime)->unicode_state.ids.mutex, \
&(runtime)->imports.extensions.mutex, \
&(runtime)->ceval.pending_mainthread.mutex, \
&(runtime)->ceval.sys_trace_profile_mutex, \
&(runtime)->atexit.mutex, \
&(runtime)->audit_hooks.mutex, \
&(runtime)->allocators.mutex, \