Sam Gross 0c89056fe5 gh-108724: Add PyMutex and _PyParkingLot APIs (gh-109344) ... PyMutex is a one byte lock with fast, inlineable lock and unlock functions for the common uncontended case. The design is based on WebKit's WTF::Lock. PyMutex is built using the _PyParkingLot APIs, which provides a cross-platform futex-like API (based on WebKit's WTF::ParkingLot). This internal API will be used for building other synchronization primitives used to implement PEP 703, such as one-time initialization and events. This also includes tests and a mini benchmark in Tools/lockbench/lockbench.py to compare with the existing PyThread_type_lock. Uncontended acquisition + release: * Linux (x86-64): PyMutex: 11 ns, PyThread_type_lock: 44 ns * macOS (arm64): PyMutex: 13 ns, PyThread_type_lock: 18 ns * Windows (x86-64): PyMutex: 13 ns, PyThread_type_lock: 38 ns PR Overview: The primary purpose of this PR is to implement PyMutex, but there are a number of support pieces (described below). * PyMutex: A 1-byte lock that doesn't require memory allocation to initialize and is generally faster than the existing PyThread_type_lock. The API is internal only for now. * _PyParking_Lot: A futex-like API based on the API of the same name in WebKit. Used to implement PyMutex. * _PyRawMutex: A word sized lock used to implement _PyParking_Lot. * PyEvent: A one time event. This was used a bunch in the "nogil" fork and is useful for testing the PyMutex implementation, so I've included it as part of the PR. * pycore_llist.h: Defines common operations on doubly-linked list. Not strictly necessary (could do the list operations manually), but they come up frequently in the "nogil" fork. ( Similar to https://man.freebsd.org/cgi/man.cgi?queue) --------- Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>		2023-09-19 09:54:29 -06:00
..
__phello__	…
asyncio	gh-108903: Remove unneeded `lambda`s from `asyncio` (GH-108904)	2023-09-05 18:11:12 +03:00
collections	gh-108751: Add copy.replace() function (GH-108752)	2023-09-06 23:55:42 +03:00
concurrent	gh-107219: Fix concurrent.futures terminate_broken() (#109244)	2023-09-11 08:11:31 +00:00
ctypes	gh-105751: test_ctypes avoids "from ctypes import *" (#105768)	2023-06-14 03:34:11 +00:00
curses	…
dbm	…
email	gh-106186: Don't report MultipartInvariantViolationDefect for valid multipart emails when parsing header only (#107016)	2023-07-23 12:25:18 +02:00
encodings	gh-98433: Fix quadratic time idna decoding. (#99092)	2022-11-07 16:54:41 -08:00
ensurepip	gh-106774: Update bundled pip version to 23.2.1 (#106775)	2023-07-25 10:59:25 +01:00
html	…
http	gh-109096: Deprecate `http.server.CGIHTTPRequestHandler` (#109387)	2023-09-15 14:26:45 -07:00
idlelib	IDLE: Condense run.main threading.Thread start. (#106125)	2023-06-27 13:12:56 -04:00
importlib	GH-105848: Replace KW_NAMES + CALL with LOAD_CONST + CALL_KW (GH-109300)	2023-09-13 10:25:45 -07:00
json	Revert "GH-96145: Add AttrDict to JSON module for use with object_hook (#96146)" (#105948)	2023-06-26 20:35:53 +02:00
logging	gh-103384: Generalize the regex pattern `BaseConfigurator.INDEX_PATTERN` to allow spaces and non-alphanumeric characters in keys. (GH-103391)	2023-08-25 09:15:26 +01:00
multiprocessing	gh-107219: Fix concurrent.futures terminate_broken() (#109244)	2023-09-11 08:11:31 +00:00
pydoc_data	…
re	gh-56166: Deprecate passing confusing positional arguments in re functions (#107778)	2023-08-16 13:35:35 -07:00
site-packages	…
sqlite3	gh-108590: Revert gh-108657 (commit 400a1cebc) (#108686)	2023-08-30 14:53:10 +00:00
test	gh-108724: Add PyMutex and _PyParkingLot APIs (gh-109344)	2023-09-19 09:54:29 -06:00
tkinter	gh-72684: Tkinter: provide interface for "tk busy" subcommands (GH-107684)	2023-08-19 14:48:02 +03:00
tomllib	…
turtledemo	…
unittest	gh-84867: Do not load tests from TestCase and FunctionTestCase (GH-100497)	2023-09-12 16:33:30 +03:00
urllib	…
venv	GH-83417: Allow `venv` to add a `.gitignore` file to environments via a new `scm_ignore_file` parameter (GH-108125)	2023-09-15 22:38:08 +00:00
wsgiref	…
xml	gh-50002: xml.dom.minidom now preserves whitespaces in attributes (GH-107947)	2023-08-23 15:23:41 +03:00
xmlrpc	…
zipfile	gh-106752: Sync with zipp 3.16.2 (#106757)	2023-07-15 09:21:17 -04:00
zoneinfo	…
__future__.py	…
__hello__.py	…
_aix_support.py	…
_collections_abc.py	…
_compat_pickle.py	…
_compression.py	…
_markupbase.py	…
_opcode_metadata.py	GH-105848: Replace KW_NAMES + CALL with LOAD_CONST + CALL_KW (GH-109300)	2023-09-13 10:25:45 -07:00
_osx_support.py	…
_py_abc.py	…
_pydatetime.py	Fix date.__repr__() docstring (#109422)	2023-09-15 15:05:19 +02:00
_pydecimal.py	…
_pyio.py	…
_pylong.py	…
_sitebuiltins.py	…
_strptime.py	…
_threading_local.py	…
_weakrefset.py	…
abc.py	…
antigravity.py	…
argparse.py	…
ast.py	gh-108843: fix ast.unparse for f-string with many quotes (#108981)	2023-09-18 14:56:19 +01:00
base64.py	…
bdb.py	…
bisect.py	…
bz2.py	…
cProfile.py	…
calendar.py	GH-108202: Document ``calendar``'s command-line interface (#109020)	2023-09-06 21:19:54 +00:00
cmd.py	…
code.py	…
codecs.py	gh-50644: Forbid pickling of codecs streams (GH-109180)	2023-09-10 20:06:09 +03:00
codeop.py	…
colorsys.py	gh-106498: Revert incorrect colorsys.rgb_to_hls change (#106627)	2023-07-11 11:07:20 -04:00
compileall.py	…
configparser.py	…
contextlib.py	gh-102799: use sys.exception() instead of sys.exc_info() in contextlib (#103311)	2023-07-20 14:41:32 +05:30
contextvars.py	…
copy.py	gh-108751: Add copy.replace() function (GH-108752)	2023-09-06 23:55:42 +03:00
copyreg.py	…
csv.py	…
dataclasses.py	gh-108751: Add copy.replace() function (GH-108752)	2023-09-06 23:55:42 +03:00
datetime.py	…
decimal.py	…
difflib.py	…
dis.py	gh-107932: Fix dis module for bytecode that does not have an associated source line (GH-107988)	2023-08-25 09:31:26 +01:00
doctest.py	gh-108794: doctest counts skipped tests (#108795)	2023-09-02 16:42:07 +02:00
enum.py	gh-109022: [Enum] require `names=()` to create empty enum type (GH-109048)	2023-09-07 18:19:03 -07:00
filecmp.py	…
fileinput.py	…
fnmatch.py	gh-89973: Fix re.error in the fnmatch module. (GH-93072)	2022-06-05 11:46:29 +03:00
fractions.py	…
ftplib.py	…
functools.py	gh-102757: fix function signature mismatch for `functools.reduce` between code and documentation (#102759)	2023-09-18 10:42:58 -06:00
genericpath.py	…
getopt.py	…
getpass.py	…
gettext.py	gh-62519: Make pgettext search plurals when translation is not found (#107118)	2023-07-23 16:08:28 +02:00
glob.py	…
graphlib.py	…
gzip.py	gh-108111: Flush gzip write buffer before seeking, fixing bad writes (#108341)	2023-08-24 10:23:01 +02:00
hashlib.py	…
heapq.py	…
hmac.py	…
imaplib.py	…
inspect.py	gh-108751: Add copy.replace() function (GH-108752)	2023-09-06 23:55:42 +03:00
io.py	…
ipaddress.py	gh-87799: Improve the textual representation of IPv4-mapped IPv6 addresses (#29345)	2023-07-31 14:33:26 +00:00
keyword.py	…
linecache.py	…
locale.py	…
lzma.py	…
mailbox.py	…
mimetypes.py	…
modulefinder.py	…
netrc.py	…
ntpath.py	gh-106242: Make ntpath.realpath errors consistent with abspath when there are embedded nulls (GH-108248)	2023-08-22 00:16:02 +00:00
nturl2path.py	…
numbers.py	…
opcode.py	gh-109039: Branch prediction for Tier 2 interpreter (#109038)	2023-09-11 18:20:24 +00:00
operator.py	…
optparse.py	…
os.py	gh-106046: Improve error message from `os.fspath` if `__fspath__` is set to `None` (#106082)	2023-06-26 00:06:12 +01:00
pathlib.py	GH-78722: Raise exceptions from `pathlib.Path.iterdir()` without delay. (#107320)	2023-09-02 16:08:03 +01:00
pdb.py	gh-109375: Fix bug where pdb registers an alias without an associated command (#109376)	2023-09-14 22:31:30 +01:00
pickle.py	gh-93627: Align Python implementation of pickle with C implementation of pickle (GH-103035)	2023-09-10 10:06:08 +03:00
pickletools.py	…
pkgutil.py	…
platform.py	…
plistlib.py	…
poplib.py	gh-106200: Remove unused imports (#106201)	2023-06-28 11:55:41 +00:00
posixpath.py	…
pprint.py	…
profile.py	…
pstats.py	…
pty.py	…
py_compile.py	…
pyclbr.py	…
pydoc.py	gh-107782: Pydoc: fall back to __text_signature__ if inspect.signature() fails (GH-107786)	2023-08-11 20:51:36 +03:00
queue.py	…
quopri.py	…
random.py	Fix an ironic typo in a code comment. (gh-109186)	2023-09-09 10:21:42 -05:00
reprlib.py	gh-107409: set `__wrapped__` attribute in `reprlib.recursive_repr` (#107410)	2023-08-10 06:55:49 +00:00
rlcompleter.py	…
runpy.py	…
sched.py	…
secrets.py	…
selectors.py	gh-106751: Optimize _PolllikeSelector for many iteration case (gh-106884)	2023-07-20 09:53:11 +09:00
shelve.py	gh-107089: Improve Shelf.clear method performance (gh-107090)	2023-07-29 09:08:11 +09:00
shlex.py	…
shutil.py	gh-99203: shutil.make_archive(): restore select CPython <= 3.10.5 behavior (GH-99802)	2023-08-16 10:00:03 +03:00
signal.py	…
site.py	…
smtplib.py	gh-65495: Use lowercase `mail from` and `rcpt to` in `smtplib.SMTP` (#107019)	2023-07-22 16:46:59 +02:00
socket.py	…
socketserver.py	…
sre_compile.py	…
sre_constants.py	…
sre_parse.py	…
ssl.py	gh-108342: Break ref cycle in SSLSocket._create() exc (#108344)	2023-08-23 05:26:01 +00:00
stat.py	gh-108638: Fix stat.filemode() when _stat is missing (#108639)	2023-08-29 15:46:46 +00:00
statistics.py	gh-108322: Optimize statistics.NormalDist.samples() (gh-108324)	2023-08-27 08:59:40 -05:00
string.py	…
stringprep.py	…
struct.py	…
subprocess.py	gh-106723: forward -Xfrozen_modules option to spawned process interpreters (#106724)	2023-07-28 05:04:26 +00:00
symtable.py	…
sysconfig.py	gh-106789: avoid importing pprint from sysconfig (#106790)	2023-07-17 10:28:33 +01:00
tabnanny.py	…
tarfile.py	gh-107811: tarfile: treat overflow in UID/GID as failure to set it (#108369)	2023-08-23 20:00:07 +02:00
tempfile.py	…
textwrap.py	gh-107369: optimize textwrap.indent() (#107374)	2023-07-29 06:37:23 +00:00
this.py	…
threading.py	gh-102029: Deprecate passing arguments to `_PyRLock` in `threading` (#102071)	2023-08-17 09:19:07 -07:00
timeit.py	gh-105052:update timeit function's description (#105060)	2023-08-27 03:22:27 -04:00
token.py	gh-107015: Remove async_hacks from the tokenizer (#107018)	2023-07-26 16:34:15 +01:00
tokenize.py	gh-71299: Fix __all__ in tokenize (#105907)	2023-06-19 13:31:57 +02:00
trace.py	…
traceback.py	gh-106922: Fix error location for constructs with spaces and parentheses (#108959)	2023-09-08 17:18:35 +01:00
tracemalloc.py	…
tty.py	…
turtle.py	gh-107805: Fix signatures of module-level generated functions in `turtle` (#107807)	2023-09-01 01:18:15 -07:00
types.py	gh-107576: Ensure `__orig_bases__` are our own in `get_original_bases` (#107584)	2023-08-03 14:19:24 +00:00
typing.py	gh-105509: Simplify implementation of `typing.Annotated` (#105510)	2023-09-01 13:57:25 -07:00
uuid.py	…
warnings.py	…
wave.py	…
weakref.py	…
webbrowser.py	…
zipapp.py	gh-104527: zippapp will now avoid appending an archive to itself. (gh-106076)	2023-06-26 10:09:08 +01:00
zipimport.py	gh-103200: Fix performance issues with `zipimport.invalidate_caches()` (GH-103208)	2023-07-07 22:02:13 +00:00