X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=bluesky.h;h=793daa42d2d722b1065d6a5dd1fc14f86a1cc344;hb=19f316a185dc3d2a67fc3d3546f3989e45559d7c;hp=c85fd708f0fe5f5c18b03925ddfdfab6e5e16c39;hpb=f48181d57295355b68dffdd8fad5729bf952ba7a;p=bluesky.git

diff --git a/bluesky.h b/bluesky.h
index c85fd70..793daa4 100644
--- a/bluesky.h
+++ b/bluesky.h
@@ -68,17 +68,19 @@ typedef struct {
     GArray *blocks;
 
     /* Directory-specific fields */
-    GSequence *dirents;
+    GSequence *dirents;         /* List of entries for READDIR */
+    GHashTable *dirhash;        /* Hash table by name for LOOKUP */
     uint64_t parent_inum;       /* inode for ".."; 0 if the root directory */
 } BlueSkyInode;
 
 /* A directory entry.  The name is UTF-8 and is a freshly-allocated string.
- * The name is hashed to a 64-bit value, and the directory entries are sorted
- * by hash value (the hash value can then be used as a cookie for resuming a
- * READDIR call). */
+ * Each directory entry is listed in two indices: dirents is indexed by cookie
+ * and dirhash by name.  The cookie is a randomly-assigned 32-bit value, unique
+ * within the directory, that remains unchanged until the entry is deleted.  It
+ * is used to provide a stable key for restarting a READDIR call. */
 typedef struct {
     gchar *name;
-    uint64_t hash;
+    uint32_t cookie;
     uint64_t inum;
 } BlueSkyDirent;
 
@@ -103,6 +105,7 @@ typedef struct {
 
 BlueSkyFS *bluesky_new_fs(gchar *name);
 int64_t bluesky_get_current_time();
+void bluesky_inode_update_ctime(BlueSkyInode *inode, gboolean update_mtime);
 uint64_t bluesky_fs_alloc_inode(BlueSkyFS *fs);
 BlueSkyInode *bluesky_new_inode(uint64_t inum, BlueSkyFileType type);