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man/threads-aware.xml
23 строки
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Zbigniew Jędrzejewski-Szmek
man: fix advice regarding thread safety of libsystemd
05 окт 2025, 00:26
05 окт 2025, 00:26
4a3620c
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<?xml version="1.0"?> <!DOCTYPE refsect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd"> <!-- SPDX-License-Identifier: LGPL-2.1-or-later --> <refsect1> <title/> <para id="strict">All functions listed here are thread-agnostic and only a single thread may operate on a given object at any given time. Different threads may access the same object at different times. Multiple independent objects may be used from different threads in parallel.</para> <para id="safe">All functions listed here are thread-safe and may be called in parallel from multiple threads.</para> <para id='getenv'>The code described here uses <citerefentry project='man-pages'><refentrytitle>getenv</refentrytitle><manvolnum>3</manvolnum></citerefentry>, which is declared to be not multi-thread-safe. This means that the code calling the functions described here must not call <citerefentry project='man-pages'><refentrytitle>setenv</refentrytitle><manvolnum>3</manvolnum></citerefentry> from a parallel thread. It is recommended to only do calls to <function>setenv()</function> from an early phase of the program when no other threads have been started.</para> </refsect1>