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Eric Snow da151fdc7a
[3.12] gh-105699: Use a _Py_hashtable_t for the PyModuleDef Cache (gh-106974) (gh-107412) 
gh-105699: Use a _Py_hashtable_t for the PyModuleDef Cache (gh-106974)

This fixes a crasher due to a race condition, triggered infrequently when two isolated (own GIL) subinterpreters simultaneously initialize their sys or builtins modules.  The crash happened due the combination of the "detached" thread state we were using and the "last holder" logic we use for the GIL.  It turns out it's tricky to use the same thread state for different threads.  Who could have guessed?

We solve the problem by eliminating the one object we were still sharing between interpreters.  We replace it with a low-level hashtable, using the "raw" allocator to avoid tying it to the main interpreter.

We also remove the accommodations for "detached" thread states, which were a dubious idea to start with.

(cherry picked from commit 8ba4df91ae)
2023-07-28 23:16:12 +00:00
..
clinic [3.12] gh-105069: Add a readline-like callable to the tokenizer to consume input iteratively (GH-105070) (#105119) 2023-05-31 11:11:53 +01:00
deepfreeze gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
frozen_modules gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
_warnings.c [3.12] gh-105375: Improve PyErr_WarnExplicit() error handling (GH-105610) (#105659) 2023-06-11 19:51:30 +00:00
adaptive.md GH-98686: Get rid of "adaptive" and "quick" instructions (GH-99182) 2022-11-09 10:50:09 -08:00
asdl.c bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933) 2021-03-23 20:47:40 +01:00
asm_trampoline.S gh-96143: Move the perf trampoline files to the Python directory (#98675) 2022-10-25 23:34:22 +01:00
assemble.c gh-87092: avoid gcc warning on uninitialized struct field in assemble.c (#104460) 2023-05-14 12:03:30 +01:00
ast.c gh-104656: Rename typeparams AST node to type_params (#104657) 2023-05-21 21:25:09 -07:00
ast_opt.c gh-104656: Rename typeparams AST node to type_params (#104657) 2023-05-21 21:25:09 -07:00
ast_unparse.c gh-100227: Move _str_replace_inf to PyInterpreterState (gh-102333) 2023-02-28 14:16:39 -07:00
bltinmodule.c [3.12] gh-105340: include hidden fast-locals in locals() (GH-105715) (#106470) 2023-07-05 23:31:37 +00:00
bootstrap_hash.c gh-81057: Move More Globals in Core Code to _PyRuntimeState (gh-99516) 2022-11-16 09:37:14 -07:00
bytecodes.c [3.12] GH-106895: Raise a ValueError when attempting to disable events that cannot be disabled. (GH-107337) (GH-107351) 2023-07-28 10:53:33 +01:00
ceval.c [3.12] GH-106898: Add the exception as an argument to the PY_UNWIND event callback function. (GH-107347) (GH-107382) 2023-07-28 11:30:16 +01:00
ceval_gil.c [3.12] gh-104812: Run Pending Calls in any Thread (gh-104813) (gh-105752) 2023-06-14 00:50:08 +00:00
ceval_macros.h GH-104580: Don't cache eval breaker in interpreter (GH-104581) 2023-05-18 10:08:33 +01:00
codecs.c gh-77757: replace exception wrapping by PEP-678 notes in typeobject's __set_name__ (#103402) 2023-04-11 11:53:06 +01:00
compile.c [3.12] gh-105908: fix barry_as_FLUFL future import (GH-105909) (#105930) 2023-06-20 03:05:20 +00:00
condvar.h gh-74953: _PyThread_cond_after() uses _PyTime_t (#94056) 2022-06-21 15:45:49 +02:00
context.c gh-94673: Hide Objects in PyTypeObject Behind Accessors (gh-104074) 2023-05-01 20:34:43 -06:00
dtoa.c gh-104263: Rely on Py_NAN and introduce Py_INFINITY (GH-104202) 2023-05-10 17:44:52 +01:00
dup2.c gh-95174: Handle missing dup() and constants in WASI (GH-95229) 2022-07-26 11:16:51 +02:00
dynamic_annotations.c bpo-32241: Add the const qualifire to declarations of umodifiable strings. (#4748) 2017-12-12 13:55:04 +02:00
dynload_hpux.c bpo-44959: Add fallback to extension modules with '.sl' suffix on HP-UX (GH-27857) 2021-09-08 14:43:00 +02:00
dynload_shlib.c gh-101758: Clean Up Uses of Import State (gh-101919) 2023-02-15 15:32:31 -07:00
dynload_stub.c
dynload_win.c gh-102255: Improve build support for Windows API partitions (GH-102256) 2023-03-09 21:09:12 +00:00
emscripten_signal.c bpo-47176: Interrupt handling for wasm32-emscripten builds without pthreads (GH-32209) 2022-04-03 22:58:52 +02:00
errors.c gh-94673: Properly Initialize and Finalize Static Builtin Types for Each Interpreter (gh-104072) 2023-05-01 19:36:00 -06:00
fileutils.c gh-104820: Fixes os.stat on Windows to better handle file systems that do not support FileIdInformation (GH-104892) 2023-05-29 17:57:04 +01:00
flowgraph.c gh-104615: don't make unsafe swaps in apply_static_swaps (#104620) 2023-05-18 21:22:03 +00:00
formatter_unicode.c gh-89653: Use int type for Unicode kind (#92704) 2022-05-13 12:41:05 +02:00
frame.c GH-96803: Document and test new unstable internal frame API functions (GH-104211) 2023-05-18 10:10:15 +01:00
frozen.c gh-100227: Only Use deepfreeze for the Main Interpreter (gh-103794) 2023-04-24 21:48:05 +00:00
frozenmain.c gh-93103: Parser uses PyConfig.parser_debug instead of Py_DebugFlag (#93106) 2022-05-24 22:35:08 +02:00
future.c gh-87092: do not allocate PyFutureFeatures dynamically (GH-98913) 2022-11-02 15:13:07 +00:00
generated_cases.c.h [3.12] GH-106895: Raise a ValueError when attempting to disable events that cannot be disabled. (GH-107337) (GH-107351) 2023-07-28 10:53:33 +01:00
getargs.c gh-99240: Reset pointer to NULL when the pointed memory is freed in argument parsing (#99890) 2022-12-17 12:07:44 +05:30
getcompiler.c closes bpo-43278: remove unnecessary leading '\n' from COMPILER when build with GCC/Clang (GH-24606) 2021-02-25 20:24:21 -08:00
getcopyright.c Update copyright years to 2023. (gh-100848) 2023-01-08 09:13:25 -06:00
getopt.c gh-90300: split --help output into separate options (#30331) 2022-06-01 05:50:01 -04:00
getplatform.c bpo-32150: Expand tabs to spaces in C files. (#4583) 2017-11-28 17:56:10 +02:00
getversion.c gh-81057: Move Globals in Core Code to _PyRuntimeState (gh-99496) 2022-11-15 09:45:11 -07:00
hamt.c gh-99537: Use Py_SETREF() function in C code (#99657) 2022-11-22 13:39:11 +01:00
hashtable.c bpo-41061: Fix incorrect expressions in hashtable (GH-21028) 2020-06-22 00:41:48 -07:00
import.c [3.12] gh-105699: Use a _Py_hashtable_t for the PyModuleDef Cache (gh-106974) (gh-107412) 2023-07-28 23:16:12 +00:00
importdl.c gh-98627: Add an Optional Check for Extension Module Subinterpreter Compatibility (gh-99040) 2023-02-15 18:16:00 -07:00
importdl.h bpo-47162: Add call trampoline to mitigate bad fpcasts on Emscripten (GH-32189) 2022-03-30 12:28:33 -07:00
initconfig.c [3.12] Document PYTHONSAFEPATH along side -P (GH-106122) (#106352) 2023-07-05 13:21:38 +02:00
instrumentation.c [3.12] GH-106895: Raise a ValueError when attempting to disable events that cannot be disabled. (GH-107337) (GH-107351) 2023-07-28 10:53:33 +01:00
intrinsics.c gh-103763: Implement PEP 695 (#103764) 2023-05-15 20:36:23 -07:00
legacy_tracing.c [3.12] GH-106898: Add the exception as an argument to the PY_UNWIND event callback function. (GH-107347) (GH-107382) 2023-07-28 11:30:16 +01:00
makeopcodetargets.py gh-98040: Remove just the imp module (#98573) 2023-04-28 16:17:58 -07:00
marshal.c [3.12] gh-101006: Improve error handling when read marshal data (GH-101007) (GH-106226) 2023-06-29 13:46:51 +03:00
modsupport.c [3.12] gh-86493: Fix possible leaks in some modules initialization (GH-106768) (GH-106855) 2023-07-18 15:14:10 +03:00
mysnprintf.c Add a warning message about PyOS_snprintf (#95993) 2022-10-07 11:49:53 -07:00
mystrtoul.c bpo-35134: Add Include/cpython/longobject.h (GH-29044) 2021-10-19 02:04:52 +02:00
opcode_metadata.h gh-103865: add monitoring support to LOAD_SUPER_ATTR (#103866) 2023-05-16 10:29:00 -06:00
opcode_targets.h gh-103865: add monitoring support to LOAD_SUPER_ATTR (#103866) 2023-05-16 10:29:00 -06:00
pathconfig.c gh-98978: Fix Py_SetPythonHome(NULL) (#99066) 2022-11-03 18:34:32 +01:00
perf_trampoline.c gh-103295: expose API for writing perf map files (#103546) 2023-05-21 11:12:24 +01:00
preconfig.c gh-77782: Deprecate global configuration variable (#93943) 2022-06-17 16:12:00 +02:00
pyarena.c bpo-43244: Remove the pyarena.h header (GH-25007) 2021-03-24 02:23:01 +01:00
pyctype.c
pyfpe.c bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507) 2022-01-13 09:46:04 +01:00
pyhash.c bpo-29410: Change the default hash algorithm to SipHash13. (GH-28752) 2021-10-10 17:29:46 +09:00
pylifecycle.c [3.12] gh-104812: Run Pending Calls in any Thread (gh-104813) (gh-105752) 2023-06-14 00:50:08 +00:00
pymath.c bpo-45440: Remove pymath.c fallbacks (GH-28977) 2021-10-15 19:45:34 +02:00
pystate.c [3.12] gh-105699: Use a _Py_hashtable_t for the PyModuleDef Cache (gh-106974) (gh-107412) 2023-07-28 23:16:12 +00:00
pystrcmp.c bpo-41524: fix pointer bug in PyOS_mystr{n}icmp (GH-21845) 2020-08-27 14:45:25 +09:00
pystrhex.c gh-91768: C API no longer use "const PyObject*" type (#91769) 2022-04-21 22:07:19 +02:00
pystrtod.c gh-104263: Rely on Py_NAN and introduce Py_INFINITY (GH-104202) 2023-05-10 17:44:52 +01:00
Python-ast.c [3.12] gh-106145: Make end_{lineno,col_offset} required on type_param nodes (GH-106224) (#106295) 2023-07-01 00:15:18 +00:00
Python-tokenize.c [3.12] gh-105564: Don't include artificial newlines in the line attribute of tokens (GH-105565) (#105579) 2023-06-09 16:58:14 +00:00
pythonrun.c [3.12] gh-106033: Get rid of new occurrences of PyDict_GetItem and Py… (#106041) 2023-06-24 16:36:34 -07:00
pytime.c gh-97786: Fix compiler warnings in pytime.c (#101826) 2023-02-19 17:16:11 -08:00
README Issue #18093: Factor out the programs that embed the runtime 2014-07-25 21:52:14 +10:00
specialize.c [3.12] GH-105840: Fix assertion failures when specializing calls with too many __defaults__ (GH-105863) 2023-06-16 18:29:55 +00:00
stdlib_module_names.h GH-84976: Move Lib/datetime.py to Lib/_pydatetime 2023-05-03 03:09:45 -06:00
structmember.c gh-103509: PEP 697 -- Limited C API for Extending Opaque Types (GH-103511) 2023-05-04 09:56:53 +02:00
suggestions.c [3.12] gh-106030: Miscellaneous fixes in Python/suggestions.c (GH-106031) (#106036) 2023-06-26 20:43:20 -07:00
symtable.c gh-104656: Rename typeparams AST node to type_params (#104657) 2023-05-21 21:25:09 -07:00
sysmodule.c [3.12] gh-106118: Add O_CLOEXEC preprocessor guard (GH-106120) (#106199) 2023-06-28 11:54:53 +00:00
thread.c gh-94673: Properly Initialize and Finalize Static Builtin Types for Each Interpreter (gh-104072) 2023-05-01 19:36:00 -06:00
thread_nt.h gh-81057: Move Threading-Related Globals to _PyRuntimeState (#100084) 2022-12-08 17:50:58 -07:00
thread_pthread.h [3.12] gh-101538: Add experimental wasi-threads build (GH-101537) (#106834) 2023-07-18 00:31:17 +02:00
thread_pthread_stubs.h gh-81057: Move Threading-Related Globals to _PyRuntimeState (#100084) 2022-12-08 17:50:58 -07:00
traceback.c GH-96803: Add three C-API functions to make _PyInterpreterFrame less opaque for users of PEP 523. (GH-96849) 2023-05-05 17:53:07 +01:00
tracemalloc.c GH-101520: Move tracemalloc functionality into core, leaving interface in Modules. (#104508) 2023-05-17 14:17:16 +01:00

README 

Miscellaneous source files for the main Python shared library