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Eric Snow f8abfa3314
gh-103323: Get the "Current" Thread State from a Thread-Local Variable (gh-103324) 
We replace _PyRuntime.tstate_current with a thread-local variable. As part of this change, we add a _Py_thread_local macro in pyport.h (only for the core runtime) to smooth out the compiler differences. The main motivation here is in support of a per-interpreter GIL, but this change also provides some performance improvement opportunities.

Note that we do not provide a fallback to the thread-local, either falling back to the old tstate_current or to thread-specific storage (PyThread_tss_*()). If that proves problematic then we can circle back. I consider it unlikely, but will run the buildbots to double-check.

Also note that this does not change any of the code related to the GILState API, where it uses a thread state stored in thread-specific storage. I suspect we can combine that with _Py_tss_tstate (from here). However, that can be addressed separately and is not urgent (nor critical).

(While this change was mostly done independently, I did take some inspiration from earlier (~2020) work by @markshannon (main...markshannon:threadstate_in_tls) and @vstinner (#23976).)
 		2023-04-24 11:17:02 -06:00
..
clinic gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
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
Python-ast.c gh-100227: Move _str_replace_inf to PyInterpreterState (gh-102333) 2023-02-28 14:16:39 -07:00
Python-tokenize.c gh-102856: Initial implementation of PEP 701 (#102855) 2023-04-19 11:18:16 -05:00
README Issue #18093: Factor out the programs that embed the runtime 2014-07-25 21:52:14 +10:00
_warnings.c gh-101758: Clean Up Uses of Import State (gh-101919) 2023-02-15 15:32:31 -07:00
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: move assembler related code from compile.c to assemble.c (#103277) 2023-04-11 11:15:09 +01:00
ast.c GH-91079: Decouple C stack overflow checks from Python recursion checks. (GH-96510) 2022-10-05 01:34:03 +01:00
ast_opt.c GH-101291: Rearrange the size bits in PyLongObject (GH-102464) 2023-03-22 14:49:51 +00:00
ast_unparse.c gh-100227: Move _str_replace_inf to PyInterpreterState (gh-102333) 2023-02-28 14:16:39 -07:00
bltinmodule.c gh-102939: Fix "conversion from Py_ssize_t to long" warning in builtins (GH-102940) 2023-03-23 10:37:04 +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 GH-103488: Use return-offset, not yield-offset. (GH-103502) 2023-04-13 16:19:07 +01:00
ceval.c gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
ceval_gil.c gh-103167: Fix `-Wstrict-prototypes` warnings by using `(void)` for functions with no args (GH-103168) 2023-04-05 09:22:33 +02:00
ceval_macros.h GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +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 GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
condvar.h gh-74953: _PyThread_cond_after() uses _PyTime_t (#94056) 2022-06-21 15:45:49 +02:00
context.c gh-81057: Move contextvars-related Globals to _PyRuntimeState (gh-99400) 2022-11-16 09:54:28 -07:00
dtoa.c gh-100227: Move the dtoa State to PyInterpreterState (gh-102331) 2023-02-28 13:14:40 -07:00
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 Issue #13959: Re-implement imp.get_suffixes() in Lib/imp.py. 2012-05-04 15:20:40 -04:00
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-77757: replace exception wrapping by PEP-678 notes in typeobject's __set_name__ (#103402) 2023-04-11 11:53:06 +01:00
fileutils.c gh-99726: Improves correctness of stat results for Windows, and uses faster API when available (GH-102149) 2023-03-16 17:27:21 +00:00
flowgraph.c gh-91276: remove unused _PyOpcode_RelativeJump (#103156) 2023-04-11 11:20:39 +01:00
formatter_unicode.c gh-89653: Use int type for Unicode kind (#92704) 2022-05-13 12:41:05 +02:00
frame.c gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives (in Python/) (#102193) 2023-02-28 11:50:52 +00:00
frozen.c gh-97669: Create Tools/build/ directory (#97963) 2022-10-17 12:01:00 +02:00
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 GH-103488: Use return-offset, not yield-offset. (GH-103502) 2023-04-13 16:19:07 +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 gh-102660: Fix is_core_module() (gh-103257) 2023-04-04 17:03:40 -06:00
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 gh-103167: Fix `-Wstrict-prototypes` warnings by using `(void)` for functions with no args (GH-103168) 2023-04-05 09:22:33 +02:00
instrumentation.c gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
intrinsics.c gh-90110: Fix the c-analyzer Tool (#102483) 2023-03-06 19:40:09 -07:00
legacy_tracing.c gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
makeopcodetargets.py GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
marshal.c GH-101291: Rearrange the size bits in PyLongObject (GH-102464) 2023-03-22 14:49:51 +00:00
modsupport.c gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives (in Python/) (#102193) 2023-02-28 11:50:52 +00:00
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-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
opcode_targets.h GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
pathconfig.c gh-98978: Fix Py_SetPythonHome(NULL) (#99066) 2022-11-03 18:34:32 +01:00
perf_trampoline.c gh-81057: Move Ceval Trampoline Globals to _PyRuntimeState (gh-100083) 2022-12-08 17:17:20 -07:00
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 Include files missed in r72044. 2009-04-27 20:54:42 +00:00
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 gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
pymath.c bpo-45440: Remove pymath.c fallbacks (GH-28977) 2021-10-15 19:45:34 +02:00
pystate.c gh-103323: Get the "Current" Thread State from a Thread-Local Variable (gh-103324) 2023-04-24 11:17:02 -06:00
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 bpo-45995: add "z" format specifer to coerce negative 0 to zero (GH-30049) 2022-04-11 15:34:18 +01:00
pythonrun.c gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives (#102816) 2023-03-19 15:17:59 +00:00
pytime.c gh-97786: Fix compiler warnings in pytime.c (#101826) 2023-02-19 17:16:11 -08:00
specialize.c GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython (GH-103083) 2023-04-12 12:04:55 +01:00
stdlib_module_names.h gh-99108: Refactor _sha256 & _sha512 into _sha2. (#101924) 2023-02-15 22:08:20 -08:00
structmember.c gh-99300: Replace Py_INCREF() with Py_NewRef() (#99530) 2022-11-16 18:34:24 +01:00
suggestions.c GH-81057: remove static state from suggestions.c (#99411) 2022-11-30 16:55:16 +05:30
symtable.c gh-102371: move _Py_Mangle from compile.c to symtable.c (#102372) 2023-03-02 18:38:22 +00:00
sysmodule.c gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22 13:39:37 -06:00
thread.c gh-81057: Move Threading-Related Globals to _PyRuntimeState (#100084) 2022-12-08 17:50:58 -07:00
thread_nt.h gh-81057: Move Threading-Related Globals to _PyRuntimeState (#100084) 2022-12-08 17:50:58 -07:00
thread_pthread.h gh-81057: Fix the wasm32-wasi Buildbot (gh-100139) 2022-12-09 10:17:54 -07:00
thread_pthread_stubs.h gh-81057: Move Threading-Related Globals to _PyRuntimeState (#100084) 2022-12-08 17:50:58 -07:00
traceback.c gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives (#102760) 2023-03-16 19:03:52 +00:00

README 

Miscellaneous source files for the main Python shared library