Staging
v0.8.1
v0.8.1
https://github.com/python/cpython
Revision 5a3a71dddbe80edc75a3a74ce3b7978cf8635901 authored by Victor Stinner on 19 March 2020, 16:40:12 UTC, committed by GitHub on 19 March 2020, 16:40:12 UTC
If a thread different than the main thread gets a signal, the bytecode evaluation loop is no longer interrupted at each bytecode instruction to check for pending signals which cannot be handled. Only the main thread of the main interpreter can handle signals. Previously, the bytecode evaluation loop was interrupted at each instruction until the main thread handles signals. Changes: * COMPUTE_EVAL_BREAKER() and SIGNAL_PENDING_SIGNALS() no longer set eval_breaker to 1 if the current thread cannot handle signals. * take_gil() now always recomputes eval_breaker.
1 parent 77248a2
Tip revision: 5a3a71dddbe80edc75a3a74ce3b7978cf8635901 authored by Victor Stinner on 19 March 2020, 16:40:12 UTC
bpo-40010: Optimize signal handling in multithreaded applications (GH-19067)
bpo-40010: Optimize signal handling in multithreaded applications (GH-19067)
Tip revision: 5a3a71d
.travis.yml
language: c
dist: xenial
# To cache doc-building dependencies and C compiler output.
cache:
- pip
- ccache
- directories:
- $HOME/multissl
env:
global:
- OPENSSL=1.1.1d
- OPENSSL_DIR="$HOME/multissl/openssl/${OPENSSL}"
- PATH="${OPENSSL_DIR}/bin:$PATH"
- CFLAGS="-I${OPENSSL_DIR}/include"
- LDFLAGS="-L${OPENSSL_DIR}/lib"
# Set rpath with env var instead of -Wl,-rpath linker flag
# OpenSSL ignores LDFLAGS when linking bin/openssl
- LD_RUN_PATH="${OPENSSL_DIR}/lib"
branches:
only:
- master
- /^\d\.\d+$/
- buildbot-custom
matrix:
fast_finish: true
allow_failures:
- env: OPTIONAL=true
include:
- name: "CPython tests"
os: linux
language: c
compiler: clang
# gcc also works, but to keep the # of concurrent builds down, we use one C
# compiler here and the other to run the coverage build. Clang is preferred
# in this instance for its better error messages.
env: TESTING=cpython
addons:
apt:
packages:
- gdb
- xvfb
- name: "Documentation build"
os: linux
language: python
# Build the docs against a stable version of Python so code bugs don't hold up doc-related PRs.
python: 3.6
env: TESTING=docs
before_script:
- cd Doc
# Sphinx is pinned so that new versions that introduce new warnings won't suddenly cause build failures.
# (Updating the version is fine as long as no warnings are raised by doing so.)
# The theme used by the docs is stored separately, so we need to install that as well.
- python -m pip install sphinx==2.2.0 blurb python-docs-theme
script:
- make check suspicious html SPHINXOPTS="-q -W -j4"
- name: "Documentation tests"
os: linux
language: c
compiler: clang
env: TESTING=doctest
addons:
apt:
packages:
- xvfb
before_script:
- ./configure
- make -j4
- make -C Doc/ PYTHON=../python venv
script:
xvfb-run make -C Doc/ PYTHON=../python SPHINXOPTS="-q -W -j4" doctest
- name: "Test code coverage (Python)"
os: linux
language: c
compiler: gcc
env: OPTIONAL=true
addons:
apt:
packages:
- xvfb
before_script:
- ./configure
- make -j4
# Need a venv that can parse covered code.
- ./python -m venv venv
- ./venv/bin/python -m pip install -U coverage
- ./venv/bin/python -m test.pythoninfo
script:
# Skip tests that re-run the entire test suite.
- xvfb-run ./venv/bin/python -m coverage run --branch --pylib -m test --fail-env-changed -uall,-cpu -x test_multiprocessing_fork -x test_multiprocessing_forkserver -x test_multiprocessing_spawn -x test_concurrent_futures || true
after_script: # Probably should be after_success once test suite updated to run under coverage.py.
# Make the `coverage` command available to Codecov w/ a version of Python that can parse all source files.
- source ./venv/bin/activate
- bash <(curl -s https://codecov.io/bash) -y .github/codecov.yml
- name: "Test code coverage (C)"
os: linux
language: c
compiler: gcc
env: OPTIONAL=true
addons:
apt:
packages:
- lcov
- xvfb
before_script:
- ./configure
script:
- xvfb-run make -j4 coverage-report
after_script: # Probably should be after_success once test suite updated to run under coverage.py.
- make pythoninfo
- bash <(curl -s https://codecov.io/bash) -y .github/codecov.yml
before_install:
- set -e
- |
# Check short-circuit conditions
if [[ "${TESTING}" != "docs" && "${TESTING}" != "doctest" ]]
then
if [[ "$TRAVIS_PULL_REQUEST" == "false" ]]
then
echo "Not a PR, doing full build."
else
# Pull requests are slightly complicated because $TRAVIS_COMMIT_RANGE
# may include more changes than desired if the history is convoluted.
# Instead, explicitly fetch the base branch and compare against the
# merge-base commit.
git fetch -q origin +refs/heads/$TRAVIS_BRANCH
changes=$(git diff --name-only HEAD $(git merge-base HEAD FETCH_HEAD))
echo "Files changed:"
echo "$changes"
if ! echo "$changes" | grep -qvE '(\.rst$)|(^Doc)|(^Misc)'
then
echo "Only docs were updated, stopping build process."
exit
fi
fi
fi
install:
- |
# Install OpenSSL as necessary
# Note: doctest needs OpenSSL
if [[ "${TESTING}" != "docs" ]]
then
# clang complains about unused-parameter a lot, redirect stderr
python3 Tools/ssl/multissltests.py --steps=library \
--base-directory ${HOME}/multissl \
--openssl ${OPENSSL} >/dev/null 2>&1
fi
- openssl version
# Travis provides only 2 cores, so don't overdo the parallelism and waste memory.
before_script:
# -Og is much faster than -O0
- CFLAGS="${CFLAGS} -Og" ./configure --with-pydebug
- make -j4 regen-all
- changes=`git status --porcelain`
- |
# Check for changes in regenerated files
if ! test -z "$changes"
then
echo "Generated files not up to date"
echo "$changes"
exit 1
fi
- make -j4
- make pythoninfo
script:
# Using the built Python as patchcheck.py is built around the idea of using
# a checkout-build of CPython to know things like what base branch the changes
# should be compared against.
# Only run on Linux as the check only needs to be run once.
- if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then ./python Tools/scripts/patchcheck.py --travis $TRAVIS_PULL_REQUEST; fi
# Check that all symbols exported by libpython start with "Py" or "_Py"
- make smelly
# `-r -w` implicitly provided through `make buildbottest`.
- |
if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
XVFB_RUN=xvfb-run;
fi
$XVFB_RUN make buildbottest TESTOPTS="-j4 -uall,-cpu"
notifications:
email: false
irc:
channels:
# This is set to a secure variable to prevent forks from notifying the
# IRC channel whenever they fail a build. This can be removed when travis
# implements https://github.com/travis-ci/travis-ci/issues/1094.
# The actual value here is: irc.freenode.net#python-dev
- secure: "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"
on_success: change
on_failure: always
skip_join: true
webhooks:
urls:
# For the same reasons as above for IRC, we encrypt the webhook address
# for Zulip. The actual value is:
# https://python.zulipchat.com/api/v1/external/travis?api_key=<api-key-redacted>&stream=core%2Ftest+runs
- secure: "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"
on_success: change
on_failure: always
Computing file changes ...