J. Nick Koston
03eea7bd3f
Avoid subprocess memory copy when c library supports posix_spawn ( #87958 )
...
* use posix spawn on alpine
* Avoid subprocess memory copy when c library supports posix_spawn
By default python 3.10 will use the fork() which has to
copy all the memory of the parent process (in our case
this can be huge since Home Assistant core can use
hundreds of megabytes of RAM). By using posix_spawn
this is avoided.
In python 3.11 vfork will also be available
https://github.com/python/cpython/issues/80004#issuecomment-1093810689
https://github.com/python/cpython/pull/11671 but we won't
always be able to use it and posix_spawn is considered safer
https://bugzilla.kernel.org/show_bug.cgi?id=215813#c14
The subprocess library doesn't know about musl though
even though it supports posix_spawn https://git.musl-libc.org/cgit/musl/log/src/process/posix_spawn.c
so we have to teach it since it only has checks for glibc
1b736838e6/Lib/subprocess.py (L745)https://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawn
* Avoid subprocess memory copy when c library supports posix_spawn
By default python 3.10 will use the fork() which has to
copy memory of the parent process (in our case
this can be huge since Home Assistant core can use
hundreds of megabytes of RAM). By using posix_spawn
this is avoided and subprocess creation does not
get discernibly slow the larger the Home Assistant
python process grows.
In python 3.11 vfork will also be available
https://github.com/python/cpython/issues/80004#issuecomment-1093810689
https://github.com/python/cpython/pull/11671 but we won't
always be able to use it and posix_spawn is considered safer
https://bugzilla.kernel.org/show_bug.cgi?id=215813#c14
The subprocess library doesn't know about musl though
even though it supports posix_spawn https://git.musl-libc.org/cgit/musl/log/src/process/posix_spawn.c
so we have to teach it since it only has checks for glibc
1b736838e6/Lib/subprocess.py (L745)https://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawn
* missed some
* adjust more tests
* coverage
2023-02-13 09:02:51 -05:00
epenet
cbd3cd4599
Add camera setup type hints ( #63277 )
...
Co-authored-by: epenet <epenet@users.noreply.github.com>
2022-01-03 13:22:41 +01:00
enegaard
2ae77bd231
Fix rpi_camera setup hanging on initialization ( #59316 )
2021-11-10 08:14:16 +01:00
J. Nick Koston
e99576c094
Pass width and height when requesting camera snapshot ( #53835 )
2021-08-10 19:33:06 -05:00
Daniel Hjelseth Høyer
fbad453c89
Pylint 2.9.3 ( #52972 )
...
Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
2021-07-14 21:44:57 -07:00
Marc Mueller
f1d48ddfe3
Update pylint to 2.8.0 ( #49637 )
2021-04-24 14:39:24 -10:00
alxrdn
55bf5514ad
Add overlay options wrapper to rpi_camera ( #34461 )
...
* add overlay options wrapper to rpi_camera
* Refactor to set config yaml section under the top level integration domain key
* Remove return values that are not checked
Co-Authored-By: Martin Hjelmare <marhje52@gmail.com>
* Remove superfluous debug log messages
* Return if not set up via discovery
* Add convenience reference to hass.data[DOMAIN]
* Black formatting
* Isort
* Exclude all rpi_camera modules
Co-authored-by: Martin Hjelmare <marhje52@gmail.com>
2020-04-30 15:30:37 +02:00
Bas Nijholt
485761bbaf
Sort imports according to PEP8 for components starting with "R" ( #29776 )
2019-12-09 14:39:51 +01:00
Paulus Schoutsen
4de97abc3a
Black
2019-07-31 12:25:30 -07:00
Tobias Sauerwein
048b100eea
Clean up docstrings ( #22679 )
...
* Clean up docstrings
* Fix long lines
* Fix more docstrings
* Fix more docstrings
* Fix more docstrings
2019-04-03 17:40:03 +02:00
Paulus Schoutsen
f5076188ef
Consolidate all platforms that have no tests ( #22096 )
...
* Consolidate
* Fix tests
* Update imports
* Fix import
* Use importlib because integration and package share name
* Fix more tests
* Update .coveragerc and CODEOWNERS
2019-03-16 20:44:05 -07:00
