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| <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" |
| "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ |
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| <refentry id="glib-programming"> |
| <refmeta> |
| <refentrytitle>Writing GLib Applications</refentrytitle> |
| <manvolnum>3</manvolnum> |
| <refmiscinfo>GLib Library</refmiscinfo> |
| </refmeta> |
| |
| <refnamediv> |
| <refname>Writing GLib Applications</refname> |
| <refpurpose> |
| General considerations when programming with GLib |
| </refpurpose> |
| </refnamediv> |
| |
| <refsect1> |
| <title>Writing GLib Applications</title> |
| |
| <refsect2> |
| <title>Threads</title> |
| |
| <para> |
| The general policy of GLib is that all functions are invisibly threadsafe |
| with the exception of data structure manipulation functions, where, if |
| you have two threads manipulating the <emphasis>same</emphasis> data |
| structure, they must use a lock to synchronize their operation. |
| </para> |
| |
| <para> |
| GLib creates a worker thread for its own purposes so GLib applications |
| will always have at least 2 threads. |
| </para> |
| |
| <para> |
| See the sections on <link linkend="glib-Threads">threads</link> and |
| <link linkend="glib-Thread-Pools">threadpools</link> for GLib APIs that |
| support multithreaded applications. |
| </para> |
| |
| </refsect2> |
| |
| <refsect2> |
| <title>Security</title> |
| |
| <para> |
| When writing code that runs with elevated privileges, it is important |
| to follow some basic rules of secure programming. David Wheeler has an |
| excellent book on this topic, |
| <ulink url="http://www.dwheeler.com/secure-programs/Secure-Programs-HOWTO/index.html">Secure Programming for Linux and Unix HOWTO</ulink>. |
| </para> |
| |
| <para> |
| When it comes to GLib and its associated libraries, GLib and |
| GObject are generally fine to use in code that runs with elevated |
| privileges; they don't load modules (executable code in shared objects) |
| or run other programs 'behind your back'. GIO has to be used |
| carefully in privileged programs, see the <ulink url="http://developer.gnome.org/gio/stable/ch02.html">GIO documentation</ulink> for details. |
| </para> |
| |
| </refsect2> |
| |
| </refsect1> |
| |
| </refentry> |
