X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=bluesky%2Fbluesky.h;h=9543d9c2edce66a49fea216886e1eeba1fb90b07;hb=810fdc7bdf0cd13aaa7c88d3c5af5aae24e77254;hp=29d9a624a4cdb54e0f0b288ca56f3494629865ab;hpb=ebdb5ef23b8e152a4793d5927b5d92d7e7b2cc4f;p=bluesky.git diff --git a/bluesky/bluesky.h b/bluesky/bluesky.h index 29d9a62..9543d9c 100644 --- a/bluesky/bluesky.h +++ b/bluesky/bluesky.h @@ -93,6 +93,9 @@ BlueSkyRCStr *bluesky_crypt_decrypt(BlueSkyRCStr *in, const uint8_t *key); struct _BlueSkyStore; typedef struct _BlueSkyStore BlueSkyStore; +struct _BlueSkyLog; +typedef struct _BlueSkyLog BlueSkyLog; + void bluesky_store_init(); BlueSkyStore *bluesky_store_new(const gchar *type); void bluesky_store_free(BlueSkyStore *store); @@ -126,6 +129,7 @@ typedef struct { uint64_t next_inum; /* Next available inode for allocation */ BlueSkyStore *store; + BlueSkyLog *log; /* Accounting for memory used for caches. Space is measured in blocks, not * bytes. We track both total data in the caches and dirty data (total @@ -142,6 +146,10 @@ typedef struct { /* Mutex for the flush daemon, to prevent concurrent execution. */ GMutex *flushd_lock; + + /* Mapping of object identifiers (blocks, inodes) to physical location (in + * the local cache or in the logs in the cloud). */ + GHashTable *locations; } BlueSkyFS; /* Inode number of the root directory. */ @@ -191,8 +199,9 @@ typedef struct { /* change_count is increased with every operation which modifies the inode, * and can be used to determine if cached data is still valid. * change_commit is the value of change_count when the inode was last - * committed to stable storage. */ - uint64_t change_count, change_commit; + * committed to stable storage (the log). + * change_cloud tracks which version was last commited to cloud storage. */ + uint64_t change_count, change_commit, change_cloud; /* Timestamp for controlling when modified data is flushed to stable * storage. When an inode is first modified from a clean state, this is