X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=bluesky%2Fbluesky.h;h=41618b532ad12b45715db0739c67fd23c8f9907d;hb=7bb8900e1209a2abf3d83e7f06e2dfb314cef61e;hp=f9e97f50e6dbb5abc0f86542543b9136ef96bb55;hpb=c513d64c6a1f7c2ff2bad97db69e2f40ef642167;p=bluesky.git

diff --git a/bluesky/bluesky.h b/bluesky/bluesky.h
index f9e97f5..41618b5 100644
--- a/bluesky/bluesky.h
+++ b/bluesky/bluesky.h
@@ -17,6 +17,17 @@
 extern "C" {
 #endif
 
+/* Various options to tweak for performance benchmarking purposes. */
+typedef struct {
+    /* Perform all get/put operations synchronously. */
+    int synchronous_stores;
+
+    /* Write data in cache immediately after file is modified. */
+    int writethrough_cache;
+} 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 {
@@ -133,6 +144,14 @@ typedef struct {
      * 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;
@@ -147,6 +166,9 @@ typedef struct {
     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.
@@ -201,7 +223,6 @@ void bluesky_directory_dump(BlueSkyInode *dir);
 
 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);
@@ -214,6 +235,10 @@ void bluesky_inode_fetch(BlueSkyFS *fs, uint64_t inum);
 gint bluesky_dirent_compare(gconstpointer a, gconstpointer b,
                             gpointer unused);
 
+void bluesky_flushd_invoke(BlueSkyFS *fs);
+
+void bluesky_debug_dump(BlueSkyFS *fs);
+
 #ifdef __cplusplus
 }
 #endif