Improve journal/cloud cache locking and add access time tracking.

[bluesky.git] / bluesky / store.c

diff --git a/bluesky/store.c b/bluesky/store.c
index 427112b..5cc475e 100644 (file)
--- a/bluesky/store.c
+++ b/bluesky/store.c
@@ -292,13 +292,15 @@ void bluesky_store_add_barrier(BlueSkyStoreAsync *barrier,
     g_mutex_unlock(barrier->lock);
 
     g_mutex_lock(async->lock);
-    if (async->barrier == NULL) {
+    if (async->barrier == NULL && async->status != ASYNC_COMPLETE) {
         async->barrier = barrier;
+        g_mutex_unlock(async->lock);
     } else {
-        g_warning("Adding async to more than one barrier!\n");
+        if (async->barrier != NULL)
+            g_warning("Adding async to more than one barrier!\n");
+        g_mutex_unlock(async->lock);
         bluesky_store_async_add_notifier(async, op_complete, barrier);
     }
-    g_mutex_unlock(async->lock);
 }
 
 static void notifier_task(gpointer n, gpointer s)
@@ -499,6 +501,32 @@ static BlueSkyStoreImplementation filestore_impl = {
     .cleanup = filestore_cleanup,
 };
 
+/* A store implementation which simply discards all data, for testing. */
+static gpointer nullstore_create(const gchar *path)
+{
+    return (gpointer)nullstore_create;
+}
+
+static void nullstore_destroy(gpointer store)
+{
+}
+
+static void nullstore_submit(gpointer s, BlueSkyStoreAsync *async)
+{
+    bluesky_store_async_mark_complete(async);
+}
+
+static void nullstore_cleanup(gpointer store, BlueSkyStoreAsync *async)
+{
+}
+
+static BlueSkyStoreImplementation nullstore_impl = {
+    .create = nullstore_create,
+    .destroy = nullstore_destroy,
+    .submit = nullstore_submit,
+    .cleanup = nullstore_cleanup,
+};
+
 void bluesky_store_init()
 {
     store_implementations = g_hash_table_new(g_str_hash, g_str_equal);
@@ -506,4 +534,5 @@ void bluesky_store_init()
                                              bluesky_max_threads, FALSE, NULL);
     bluesky_store_register(&memstore_impl, "mem");
     bluesky_store_register(&filestore_impl, "file");
+    bluesky_store_register(&nullstore_impl, "null");
 }