Basic filesystem journaling.

[bluesky.git] / bluesky / bluesky-private.h

diff --git a/bluesky/bluesky-private.h b/bluesky/bluesky-private.h
index 5080e00..ddf1d34 100644 (file)
--- a/bluesky/bluesky-private.h
+++ b/bluesky/bluesky-private.h
@@ -149,6 +149,28 @@ void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block,
 void bluesky_file_flush(BlueSkyInode *inode, BlueSkyStoreAsync *barrier);
 void bluesky_file_drop_cached(BlueSkyInode *inode);
 
+/* Logging infrastructure for ensuring operations are persistently recorded to
+ * disk. */
+struct _BlueSkyLog {
+    char *log_directory;
+    GAsyncQueue *queue;
+    int fd;
+    int seq_num;
+};
+
+typedef struct {
+    gboolean committed;
+    GMutex *lock;
+    GCond *cond;
+    char *key;
+    BlueSkyRCStr *data;
+} BlueSkyLogItem;
+
+BlueSkyLog *bluesky_log_new(const char *log_directory);
+BlueSkyLogItem *bluesky_log_item_new();
+void bluesky_log_item_submit(BlueSkyLogItem *item, BlueSkyLog *log);
+void bluesky_log_item_finish(BlueSkyLogItem *item);
+
 #ifdef __cplusplus
 }
 #endif