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<title>Event loop: Libvirt GLib Reference Manual</title>
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Description
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Event loop
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Event loop — Integrate libvirt with the GMain event framework
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Stability Level
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develop applications to these interfaces, release them, and have confidence that
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they will run on all minor releases of the product (after the one in which the
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interface was introduced, and within the same major release). Even at a major
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release, incompatible changes are expected to be rare, and to have strong
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justifications.
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">Stable, unless otherwise indicated
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Functions
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void
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gvir_event_register ()
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Includes
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#include <libvirt-glib/libvirt-glib.h>
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Description
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The libvirt API has the ability to provide applications with asynchronous
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notifications of interesting events. To enable this functionality though,
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applications must provide libvirt with an event loop implementation. The
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libvirt-glib API provides such an implementation, which naturally integrates
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with the GMain event loop framework.
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To enable use of the GMain event loop glue, the gvir_event_register()
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should be invoked. Once this is done, it is mandatory to have the default
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GMain event loop run by a thread in the application, usually the primary
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thread, eg by using gtk_main()g_application_run()
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Example 3. Registering for events with a GTK application
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1
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7
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int main(int argc, char **argv) {
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...setup...
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gvir_event_register();
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...more setup...
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gtk_main();
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return 0;
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}
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Example 4. Registering for events using Appplication
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1
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int main(int argc, char **argv) {
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...setup...
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GApplication *app = ...create some impl of GApplication...
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gvir_event_register();
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...more setup...
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g_application_run(app);
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return 0;
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}
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Functions
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gvir_event_register ()
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void
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gvir_event_register (void);
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Registers a libvirt event loop implementation that is backed
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by the default GMain context. If invoked more
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than once this method will be a no-op. Applications should,
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however, take care not to register any another non-GLib
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event loop with libvirt.
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After invoking this method, it is mandatory to run the
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default GMain event loop. Typically this can be satisfied
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by invoking gtk_main or g_application_run
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in the application's main thread. Failure to run the event
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loop will mean no libvirt events get dispatched, and the
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libvirt keepalive timer will kill off libvirt connections
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frequently.
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Types and Values
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