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| author | Giampaolo Rodola <g.rodola@gmail.com> | 2020-12-17 18:59:13 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-12-17 18:59:13 +0100 |
| commit | 6bdde37049ba9fae31ccf83620468f77a6b9f396 (patch) | |
| tree | 33875d40066b6b48b5ed5161d230288d968f6cc1 /psutil/_pslinux.py | |
| parent | c39fef497f0c2c963a9db03ef80cdb156f64a425 (diff) | |
| download | psutil-6bdde37049ba9fae31ccf83620468f77a6b9f396.tar.gz | |
[macOS, UNIX] prefer _SC_PAGESIZE over (partially) deprecated getpagesize() (#1891)
Add a reusable `psutil_getpagesize()` utility common to all UNIXes.
Related to #1885 (`getpagesize()` is deprecated on recent macOS, POSIX.1-2001 and possibly other UNIXes).
The problem emerged on macOS but `getpagesize()` is also used in FreeBSD, NetBSD, OpenBSD and AIX, so it makes sense to do this in one place only, similarly to Windows which also provide a `psutil_getpagesize()` utility.
Follow cPython's `mmapmodule.c` and `resourcemodule.c` lead and rely on `sysconf(_SC_PAGESIZE)` instead, but leave `getpagesize()` in place as last resort/attempt for systems where it's not deprecated and/or they still legitimately rely on it.
Also provide a python wrapper so we can test the return value of this C function against Python's stdlib modules.
Signed-off-by: Giampaolo Rodola <g.rodola@gmail.com>
Diffstat (limited to 'psutil/_pslinux.py')
| -rw-r--r-- | psutil/_pslinux.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/psutil/_pslinux.py b/psutil/_pslinux.py index ff13b5eb..068c3f03 100644 --- a/psutil/_pslinux.py +++ b/psutil/_pslinux.py @@ -81,7 +81,7 @@ _DEFAULT = object() # Number of clock ticks per second CLOCK_TICKS = os.sysconf("SC_CLK_TCK") -PAGESIZE = os.sysconf("SC_PAGE_SIZE") +PAGESIZE = cext_posix.getpagesize() BOOT_TIME = None # set later # Used when reading "big" files, namely /proc/{pid}/smaps and /proc/net/*. # On Python 2, using a buffer with open() for such files may result in a |