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gmain: Convert docs to markdown
Specifically, convert sections to markdown syntax and drop all the para tags.
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glib/gmain.c
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glib/gmain.c
@ -136,8 +136,9 @@
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* GTK+ contains wrappers of some of these functions, e.g. gtk_main(),
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* gtk_main_quit() and gtk_events_pending().
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*
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* <refsect2><title>Creating new source types</title>
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* <para>One of the unusual features of the #GMainLoop functionality
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* ## Creating new source types
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*
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* One of the unusual features of the #GMainLoop functionality
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* is that new types of event source can be created and used in
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* addition to the builtin type of event source. A new event source
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* type is used for handling GDK events. A new source type is created
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@ -147,31 +148,33 @@
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* to the new source type. To create an instance of the new source type,
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* call g_source_new() passing in the size of the derived structure and
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* a table of functions. These #GSourceFuncs determine the behavior of
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* the new source type.</para>
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* <para>New source types basically interact with the main context
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* the new source type.
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*
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* New source types basically interact with the main context
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* in two ways. Their prepare function in #GSourceFuncs can set a timeout
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* to determine the maximum amount of time that the main loop will sleep
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* before checking the source again. In addition, or as well, the source
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* can add file descriptors to the set that the main context checks using
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* g_source_add_poll().</para>
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* </refsect2>
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* <refsect2><title>Customizing the main loop iteration</title>
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* <para>Single iterations of a #GMainContext can be run with
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* g_source_add_poll().
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*
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* ## Customizing the main loop iteration
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*
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* Single iterations of a #GMainContext can be run with
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* g_main_context_iteration(). In some cases, more detailed control
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* of exactly how the details of the main loop work is desired, for
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* instance, when integrating the #GMainLoop with an external main loop.
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* In such cases, you can call the component functions of
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* g_main_context_iteration() directly. These functions are
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* g_main_context_prepare(), g_main_context_query(),
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* g_main_context_check() and g_main_context_dispatch().</para>
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* <para>The operation of these functions can best be seen in terms
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* of a state diagram, as shown in <xref linkend="mainloop-states"/>.</para>
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* g_main_context_check() and g_main_context_dispatch().
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*
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* The operation of these functions can best be seen in terms
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* of a state diagram, as shown in <xref linkend="mainloop-states"/>.
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* <figure id="mainloop-states"><title>States of a Main Context</title>
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* <graphic fileref="mainloop-states.gif" format="GIF"></graphic>
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* </figure>
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* </refsect2>
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*
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* On Unix, the GLib mainloop is incompatible with fork(). Any program
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* On UNIX, the GLib mainloop is incompatible with fork(). Any program
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* using the mainloop must either exec() or exit() from the child
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* without returning to the mainloop.
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*/
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