Preparatory work before implementing proper cloud writing.

[bluesky.git] / bluesky / file.c

diff --git a/bluesky/file.c b/bluesky/file.c
index 35ed1dc..8faae00 100644 (file)
--- a/bluesky/file.c
+++ b/bluesky/file.c
@@ -225,6 +225,13 @@ static void block_fetch_completion(BlueSkyStoreAsync *async, gpointer data)
     bluesky_string_unref(block->data);
     block->data = async->data;
     bluesky_string_ref(block->data);
+
+    if (block->data == NULL) {
+        g_warning("Failed to fetch data block from store!\n");
+        block->data = bluesky_string_new(g_malloc0(BLUESKY_BLOCK_SIZE),
+                                         BLUESKY_BLOCK_SIZE);
+    }
+
     block->type = BLUESKY_BLOCK_CACHED;
 }
 
@@ -251,16 +258,22 @@ void bluesky_block_fetch(BlueSkyFS *fs, BlueSkyBlock *block,
 
 /* Write the given block to cloud-backed storage and mark it clean. */
 void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block,
-                         BlueSkyStoreAsync *barrier)
+                         BlueSkyStoreAsync *barrier,
+                         GList **log_items)
 {
     if (block->type != BLUESKY_BLOCK_DIRTY)
         return;
 
     BlueSkyRCStr *data = block->data;
 
-    GChecksum *csum = g_checksum_new(G_CHECKSUM_SHA256);
-    g_checksum_update(csum, (const guchar *)data->data, data->len);
-    gchar *name = g_strdup(g_checksum_get_string(csum));
+    BlueSkyCloudLog *cloudlog = bluesky_cloudlog_new(fs);
+    gchar *name = bluesky_cloudlog_id_to_string(cloudlog->id);
+    cloudlog->type = LOGTYPE_DATA;
+    cloudlog->inum = 0; //FIXME
+    cloudlog->data = data;
+    bluesky_string_ref(data);
+    *log_items = g_list_prepend(*log_items, bluesky_cloudlog_sync(cloudlog));
+    bluesky_cloudlog_insert(cloudlog);
 
     /* Store the file data asynchronously, and don't bother waiting for a
      * response. */
@@ -279,18 +292,17 @@ void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block,
 
     block->type = BLUESKY_BLOCK_CACHED;
     g_atomic_int_add(&fs->cache_dirty, -1);
-
-    g_checksum_free(csum);
 }
 
 /* Flush all blocks in a file to stable storage. */
-void bluesky_file_flush(BlueSkyInode *inode, BlueSkyStoreAsync *barrier)
+void bluesky_file_flush(BlueSkyInode *inode, BlueSkyStoreAsync *barrier,
+                        GList **log_items)
 {
     g_return_if_fail(inode->type == BLUESKY_REGULAR);
 
     for (int i = 0; i < inode->blocks->len; i++) {
         BlueSkyBlock *b = &g_array_index(inode->blocks, BlueSkyBlock, i);
-        bluesky_block_flush(inode->fs, b, barrier);
+        bluesky_block_flush(inode->fs, b, barrier, log_items);
     }
 }