[New-bugs-announce] [issue28156] [Patch] posixmodule: Make the presence of os.getpid() optional

Ed Schouten report at bugs.python.org
Wed Sep 14 12:53:50 EDT 2016

New submission from Ed Schouten:

CloudABI (https://mail.python.org/pipermail/python-dev/2016-July/145708.html) does not provide getpid(). Though this may sound quite silly at first, there is quite a good reason for this. One of the things that CloudABI wants to achieve is making large scale (cluster/cloud) computing easier. In such an environment there is rarely a need for having machine-local unique process identifiers. They have to be globally unique and preferably not recycled.

POSIX requires that pid_t is a signed integer that must have a positive value. Most C compilers only provide full support for integers up to 64 bits in size. This means that CloudABI could only provide 63-bit process identifiers, which is far smaller than, say, a UUID. For this reason we've decided to omit getpid() altogether.

Attached is a patch that makes use of the already existing HAVE_GETPID definition in pyconfig.h to disable the os.getpid() function that is part of the posixmodule.

components: Extension Modules
files: patch-no-getpid
messages: 276470
nosy: EdSchouten
priority: normal
severity: normal
status: open
title: [Patch] posixmodule: Make the presence of os.getpid() optional
versions: Python 3.6
Added file: http://bugs.python.org/file44664/patch-no-getpid

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