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Shut down automatically when there is system memory pressure

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We can just rescan hardware if required; near OOM it's just more important to
free what we can and get out of the way.
This commit is contained in:
Richard Hughes 2019-12-11 13:44:09 +00:00
parent d7197d5319
commit 603e4f6956
2 changed files with 32 additions and 0 deletions
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1
contrib/ci/Dockerfile-fedora.in
View File

@ -7,6 +7,7 @@ RUN echo fubar > /etc/machine-id
RUN dnf -y update
RUN echo fubar > /etc/machine-id
%%%INSTALL_DEPENDENCIES_COMMAND%%%
RUN dnf -y update glib2 glib2-devel --releasever=32
RUN mkdir /build
WORKDIR /build
COPY . .

31
src/fu-main.c
View File

@ -43,6 +43,9 @@ typedef struct {
GDBusProxy *proxy_uid;
GMainLoop *loop;
GFileMonitor *argv0_monitor;
#if GLIB_CHECK_VERSION(2,63,3)
GMemoryMonitor *memory_monitor;
#endif
PolkitAuthority *authority;
guint owner_id;
FuEngine *engine;
@ -1464,6 +1467,23 @@ fu_main_argv_changed_cb (GFileMonitor *monitor, GFile *file, GFile *other_file,
g_main_loop_quit (priv->loop);
}
#if GLIB_CHECK_VERSION(2,63,3)
static void
fu_main_memory_monitor_warning_cb (GMemoryMonitor *memory_monitor,
GMemoryMonitorWarningLevel level,
FuMainPrivate *priv)
{
/* can do straight away? */
if (priv->update_in_progress) {
g_warning ("OOM during a firmware update, ignoring");
priv->pending_sigterm = TRUE;
return;
}
g_debug ("OOM event, shutting down");
g_main_loop_quit (priv->loop);
}
#endif
static GDBusNodeInfo *
fu_main_load_introspection (const gchar *filename, GError **error)
{
@ -1502,6 +1522,10 @@ fu_main_private_free (FuMainPrivate *priv)
g_object_unref (priv->argv0_monitor);
if (priv->introspection_daemon != NULL)
g_dbus_node_info_unref (priv->introspection_daemon);
#if GLIB_CHECK_VERSION(2,63,3)
if (priv->memory_monitor != NULL)
g_object_unref (priv->memory_monitor);
#endif
g_free (priv);
}
@ -1586,6 +1610,13 @@ main (int argc, char *argv[])
g_signal_connect (priv->argv0_monitor, "changed",
G_CALLBACK (fu_main_argv_changed_cb), priv);
#if GLIB_CHECK_VERSION(2,63,3)
/* shut down on low memory event as we can just rescan hardware */
priv->memory_monitor = g_memory_monitor_dup_default ();
g_signal_connect (G_OBJECT (priv->memory_monitor), "low-memory-warning",
G_CALLBACK (fu_main_memory_monitor_warning_cb), priv);
#endif
/* load introspection from file */
priv->introspection_daemon = fu_main_load_introspection (FWUPD_DBUS_INTERFACE ".xml",
&error);