1 files changed, 157 insertions, 0 deletions
diff --git a/src/core/settings/nm-settings-storage.c b/src/core/settings/nm-settings-storage.c
new file mode 100644
index 00000000..c56ba075
--- /dev/null
+++ b/src/core/settings/nm-settings-storage.c
@@ -0,0 +1,157 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2018 Red Hat, Inc.
+ */
+
+#include "src/core/nm-default-daemon.h"
+
+#include "nm-settings-storage.h"
+
+#include "nm-utils.h"
+#include "nm-settings-plugin.h"
+
+#include "settings/plugins/keyfile/nms-keyfile-storage.h"
+
+/*****************************************************************************/
+
+int
+nm_settings_storage_cmp(NMSettingsStorage *a, NMSettingsStorage *b, const GSList *plugin_list)
+{
+    NMSettingsStorageClass *klass;
+
+    /* Sort by priority.
+     *
+     * If a > b (by priority), we return a positive number (as one
+     * would expect by a cmp() function). */
+
+    nm_assert(NM_IS_SETTINGS_STORAGE(a));
+    nm_assert(NM_IS_SETTINGS_STORAGE(b));
+    nm_assert(a != b);
+    nm_assert(nm_streq(nm_settings_storage_get_uuid(a), nm_settings_storage_get_uuid(b)));
+
+    /* in-memory has always higher priority */
+    NM_CMP_DIRECT(nm_settings_storage_is_keyfile_run(a), nm_settings_storage_is_keyfile_run(b));
+
+    NM_CMP_RETURN(nm_settings_plugin_cmp_by_priority(nm_settings_storage_get_plugin(a),
+                                                     nm_settings_storage_get_plugin(b),
+                                                     plugin_list));
+
+    klass = NM_SETTINGS_STORAGE_GET_CLASS(a);
+    if (klass != NM_SETTINGS_STORAGE_GET_CLASS(b)) {
+        /* one plugin must return storages of the same type. Otherwise, it's
+         * unclear how cmp_fcn() should compare them. */
+        nm_assert_not_reached();
+        return 0;
+    }
+
+    if (klass->cmp_fcn)
+        NM_CMP_RETURN(klass->cmp_fcn(a, b));
+
+    return 0;
+}
+
+/*****************************************************************************/
+
+NM_GOBJECT_PROPERTIES_DEFINE_BASE(PROP_PLUGIN, PROP_UUID, PROP_FILENAME, );
+
+G_DEFINE_TYPE(NMSettingsStorage, nm_settings_storage, G_TYPE_OBJECT)
+
+/*****************************************************************************/
+
+static void
+set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+    NMSettingsStorage *self = NM_SETTINGS_STORAGE(object);
+
+    switch (prop_id) {
+    case PROP_PLUGIN:
+        /* construct-only */
+        self->_plugin = g_object_ref(g_value_get_object(value));
+        nm_assert(NM_IS_SETTINGS_PLUGIN(self->_plugin));
+        break;
+    case PROP_UUID:
+        /* construct-only */
+        self->_uuid = g_value_dup_string(value);
+        nm_assert(!self->_uuid || nm_utils_is_uuid(self->_uuid));
+        break;
+    case PROP_FILENAME:
+        /* construct-only */
+        self->_filename = g_value_dup_string(value);
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+        break;
+    }
+}
+
+/*****************************************************************************/
+
+static void
+nm_settings_storage_init(NMSettingsStorage *self)
+{
+    c_list_init(&self->_storage_lst);
+    c_list_init(&self->_storage_by_uuid_lst);
+}
+
+NMSettingsStorage *
+nm_settings_storage_new(NMSettingsPlugin *plugin, const char *uuid, const char *filename)
+{
+    nm_assert(NM_IS_SETTINGS_PLUGIN(plugin));
+    nm_assert(nm_utils_is_uuid(uuid));
+
+    return g_object_new(NM_TYPE_SETTINGS_STORAGE,
+                        NM_SETTINGS_STORAGE_PLUGIN,
+                        plugin,
+                        NM_SETTINGS_STORAGE_UUID,
+                        uuid,
+                        NM_SETTINGS_STORAGE_FILENAME,
+                        filename,
+                        NULL);
+}
+
+static void
+finalize(GObject *object)
+{
+    NMSettingsStorage *self = NM_SETTINGS_STORAGE(object);
+
+    c_list_unlink_stale(&self->_storage_lst);
+    c_list_unlink_stale(&self->_storage_by_uuid_lst);
+
+    g_object_unref(self->_plugin);
+    g_free(self->_uuid);
+    g_free(self->_filename);
+
+    G_OBJECT_CLASS(nm_settings_storage_parent_class)->finalize(object);
+}
+
+static void
+nm_settings_storage_class_init(NMSettingsStorageClass *klass)
+{
+    GObjectClass *object_class = G_OBJECT_CLASS(klass);
+
+    object_class->set_property = set_property;
+    object_class->finalize     = finalize;
+
+    obj_properties[PROP_PLUGIN] =
+        g_param_spec_object(NM_SETTINGS_STORAGE_PLUGIN,
+                            "",
+                            "",
+                            NM_TYPE_SETTINGS_PLUGIN,
+                            G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+
+    obj_properties[PROP_UUID] =
+        g_param_spec_string(NM_SETTINGS_STORAGE_UUID,
+                            "",
+                            "",
+                            NULL,
+                            G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+
+    obj_properties[PROP_FILENAME] =
+        g_param_spec_string(NM_SETTINGS_STORAGE_FILENAME,
+                            "",
+                            "",
+                            NULL,
+                            G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+
+    g_object_class_install_properties(object_class, _PROPERTY_ENUMS_LAST, obj_properties);
+}