extern "C" {
#endif
+/* Various options to tweak for performance benchmarking purposes. */
+typedef struct {
+ /* Perform all get/put operations synchronously. */
+ int synchronous_stores;
+} BlueSkyOptions;
+
+extern BlueSkyOptions bluesky_options;
+
/* BlueSky status and error codes. Various frontends should translate these to
* the appropriate error code for whatever protocol they implement. */
typedef enum {
/* Storage interface. This presents a key-value store abstraction, and can
* have multiple implementations: in-memory, on-disk, in-cloud. */
-typedef struct {
- /* Create a new store instance and return a handle to it. */
- gpointer (*create)();
-
- /* Clean up any resources used by this store. */
- void (*destroy)(gpointer store);
-
- /* Fetch an item with the given name, or return NULL if not found. */
- BlueSkyRCStr * (*get)(gpointer store, const gchar *key);
-
- /* Store an item to the given key name. */
- void (*put)(gpointer store, const gchar *key, BlueSkyRCStr *val);
-} BlueSkyStoreImplementation;
-
-void bluesky_store_register(const BlueSkyStoreImplementation *impl,
- const gchar *name);
-
struct _BlueSkyStore;
typedef struct _BlueSkyStore BlueSkyStore;
* committed to stable storage. */
uint64_t change_count, change_commit;
+ /* Timestamp for controlling when modified data is flushed to stable
+ * storage. When an inode is first modified from a clean state, this is
+ * set to the current time. If the inode is clean, it is set to zero. */
+ int64_t change_time;
+
+ /* Additional state for tracking cache writeback status. */
+ uint64_t change_pending; /* change_count version currently being committed to storage */
+
int64_t atime; /* Microseconds since the Unix epoch */
int64_t ctime;
int64_t mtime;
GHashTable *dirhash; /* Hash table by name for LOOKUP */
GHashTable *dirhash_folded; /* As above, but case-folded */
uint64_t parent_inum; /* inode for ".."; 0 if the root directory */
+
+ /* Symlink-specific fields */
+ gchar *symlink_contents;
} BlueSkyInode;
/* A directory entry. The name is UTF-8 and is a freshly-allocated string.
void bluesky_block_touch(BlueSkyInode *inode, uint64_t i);
void bluesky_block_fetch(BlueSkyFS *fs, BlueSkyBlock *block);
-void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block);
void bluesky_file_truncate(BlueSkyInode *inode, uint64_t size);
void bluesky_file_write(BlueSkyInode *inode, uint64_t offset,
const char *data, gint len);
gint bluesky_dirent_compare(gconstpointer a, gconstpointer b,
gpointer unused);
+void bluesky_flushd_invoke(BlueSkyFS *fs);
+
#ifdef __cplusplus
}
#endif