[evolution-data-server] Bug 770476 - Crash on exit in object_bag_notify()

[Milan Crha <mcrha src gnome org>]

commit 51fa0c433a24f28f94cc78a4512d380268478d0b
Author: Milan Crha <mcrha redhat com>
Date:   Mon Jun 5 17:34:02 2017 +0200

    Bug 770476 - Crash on exit in object_bag_notify()

 src/camel/camel-store.c |   59 +++++++++++++++++++++++++++++++---------------
 1 files changed, 40 insertions(+), 19 deletions(-)
---
diff --git a/src/camel/camel-store.c b/src/camel/camel-store.c
index 5392bde..2a29f6e 100644
--- a/src/camel/camel-store.c
+++ b/src/camel/camel-store.c
@@ -252,13 +252,16 @@ store_get_special (CamelStore *store,
        gint i;
 
        folder = camel_vtrash_folder_new (store, type);
-       folders = camel_object_bag_list (store->priv->folders);
-       for (i = 0; i < folders->len; i++) {
-               if (!CAMEL_IS_VTRASH_FOLDER (folders->pdata[i]))
-                       camel_vee_folder_add_folder ((CamelVeeFolder *) folder, (CamelFolder *) 
folders->pdata[i], NULL);
-               g_object_unref (folders->pdata[i]);
+
+       if (store->priv->folders) {
+               folders = camel_object_bag_list (store->priv->folders);
+               for (i = 0; i < folders->len; i++) {
+                       if (!CAMEL_IS_VTRASH_FOLDER (folders->pdata[i]))
+                               camel_vee_folder_add_folder ((CamelVeeFolder *) folder, (CamelFolder *) 
folders->pdata[i], NULL);
+                       g_object_unref (folders->pdata[i]);
+               }
+               g_ptr_array_free (folders, TRUE);
        }
-       g_ptr_array_free (folders, TRUE);
 
        return folder;
 }
@@ -323,7 +326,7 @@ store_finalize (GObject *object)
 {
        CamelStore *store = CAMEL_STORE (object);
 
-       if (store->priv->folders != NULL)
+       if (store->priv->folders)
                camel_object_bag_destroy (store->priv->folders);
 
        g_clear_object (&store->priv->cdb);
@@ -333,6 +336,20 @@ store_finalize (GObject *object)
 }
 
 static void
+store_dispose (GObject *object)
+{
+       CamelStore *store = CAMEL_STORE (object);
+
+       if (store->priv->folders) {
+               camel_object_bag_destroy (store->priv->folders);
+               store->priv->folders = NULL;
+       }
+
+       /* Chain up to parent's method. */
+       G_OBJECT_CLASS (camel_store_parent_class)->dispose (object);
+}
+
+static void
 store_constructed (GObject *object)
 {
        CamelStore *store;
@@ -452,9 +469,11 @@ store_synchronize_sync (CamelStore *store,
                }
 
                camel_folder_info_free (root);
-       } else {
+       } else if (store->priv->folders) {
                /* sync only folders opened until now */
                folders = camel_object_bag_list (store->priv->folders);
+       } else {
+               folders = g_ptr_array_new ();
        }
 
        /* We don't sync any vFolders, that is used to update certain
@@ -555,6 +574,7 @@ camel_store_class_init (CamelStoreClass *class)
 
        object_class = G_OBJECT_CLASS (class);
        object_class->finalize = store_finalize;
+       object_class->dispose = store_dispose;
        object_class->constructed = store_constructed;
 
        service_class = CAMEL_SERVICE_CLASS (class);
@@ -1343,7 +1363,7 @@ camel_store_get_folder_sync (CamelStore *store,
 
 try_again:
        /* Try cache first. */
-       folder = camel_object_bag_reserve (store->priv->folders, folder_name);
+       folder = store->priv->folders ? camel_object_bag_reserve (store->priv->folders, folder_name) : NULL;
        if (folder != NULL) {
                if ((flags & CAMEL_STORE_FOLDER_INFO_REFRESH) != 0)
                        camel_folder_prepare_content_refresh (folder);
@@ -1422,11 +1442,11 @@ try_again:
                if (local_error != NULL)
                        g_propagate_error (error, local_error);
 
-               if (folder != NULL && store_uses_vjunk)
+               if (folder != NULL && store_uses_vjunk && store->priv->folders)
                        vjunk = camel_object_bag_get (
                                store->priv->folders, CAMEL_VJUNK_NAME);
 
-               if (folder != NULL && store_uses_vtrash)
+               if (folder != NULL && store_uses_vtrash && store->priv->folders)
                        vtrash = camel_object_bag_get (
                                store->priv->folders, CAMEL_VTRASH_NAME);
        }
@@ -1434,12 +1454,12 @@ try_again:
        /* Release the folder name reservation before adding the
         * folder to the virtual Junk and Trash folders, just to
         * reduce the chance of deadlock. */
-       if (folder != NULL)
-               camel_object_bag_add (
-                       store->priv->folders, folder_name, folder);
-       else
-               camel_object_bag_abort (
-                       store->priv->folders, folder_name);
+       if (store->priv->folders) {
+               if (folder != NULL)
+                       camel_object_bag_add (store->priv->folders, folder_name, folder);
+               else
+                       camel_object_bag_abort (store->priv->folders, folder_name);
+       }
 
        /* If this is a normal folder and the store uses a
         * virtual Junk folder, let the virtual Junk folder
@@ -2749,7 +2769,7 @@ store_rename_folder_thread (GTask *task,
        /* If the folder is open (or any subfolders of the open folder)
         * We need to rename them atomically with renaming the actual
         * folder path. */
-       folders = camel_object_bag_list (store->priv->folders);
+       folders = store->priv->folders ? camel_object_bag_list (store->priv->folders) : g_ptr_array_new ();
        for (ii = 0; ii < folders->len; ii++) {
                const gchar *full_name;
                gsize full_name_len;
@@ -2792,7 +2812,8 @@ store_rename_folder_thread (GTask *task,
                        full_name = camel_folder_get_full_name (folder);
 
                        new = g_strdup_printf ("%s%s", new_name, full_name + strlen (old_name));
-                       camel_object_bag_rekey (store->priv->folders, folder, new);
+                       if (store->priv->folders)
+                               camel_object_bag_rekey (store->priv->folders, folder, new);
                        camel_folder_rename (folder, new);
                        g_free (new);