extern "C" {
#endif
+/* Target cache size levels. */
+extern int bluesky_watermark_low_dirty;
+extern int bluesky_watermark_medium_dirty;
+extern int bluesky_watermark_high_dirty;
+
+extern int bluesky_watermark_low_total;
+extern int bluesky_watermark_medium_total;
+extern int bluesky_watermark_high_total;
+
/* TODO: Make this go away entirely. */
BlueSkyFS *bluesky_new_fs(gchar *name);
+/* Linked list update functions for LRU lists. */
+void bluesky_list_unlink(GList *head, GList *item);
+GList *bluesky_list_prepend(GList *head, BlueSkyInode *inode);
+GList *bluesky_list_append(GList *head, BlueSkyInode *inode);
+BlueSkyInode *bluesky_list_head(GList *head);
+BlueSkyInode *bluesky_list_tail(GList *head);
+
/* Serialization and deserialization of filesystem data for storing to
* persistent storage. */
void bluesky_serialize_superblock(GString *out, BlueSkyFS *fs);
} BlueSkyAsyncStatus;
struct BlueSkyNotifierList;
-typedef struct {
+typedef struct _BlueSkyStoreAsync BlueSkyStoreAsync;
+struct _BlueSkyStoreAsync {
BlueSkyStore *store;
GMutex *lock;
int result; /* Result code; 0 for success. */
struct BlueSkyNotifierList *notifiers;
+ gint notifier_count;
+
+ /* The barrier waiting on this operation. Support for more than one
+ * barrier for a single async is not well-supported and should be avoided
+ * if possible. */
+ BlueSkyStoreAsync *barrier;
bluesky_time_hires start_time; /* Time operation was submitted. */
+ bluesky_time_hires exec_time; /* Time processing started on operation. */
gpointer store_private; /* For use by the storage implementation */
-} BlueSkyStoreAsync;
+};
/* Support for notification lists. These are lists of one-shot functions which
* can be called when certain events--primarily, competed storage
/* The abstraction layer for storage, allowing multiple implementations. */
typedef struct {
/* Create a new store instance and return a handle to it. */
- gpointer (*create)();
+ gpointer (*create)(const gchar *path);
/* Clean up any resources used by this store. */
void (*destroy)(gpointer store);
void bluesky_inode_start_sync(BlueSkyInode *inode, BlueSkyStoreAsync *barrier);
+void bluesky_block_touch(BlueSkyInode *inode, uint64_t i);
+void bluesky_block_fetch(BlueSkyFS *fs, BlueSkyBlock *block,
+ BlueSkyStoreAsync *barrier);
void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block,
BlueSkyStoreAsync *barrier);
void bluesky_file_flush(BlueSkyInode *inode, BlueSkyStoreAsync *barrier);