Add an inode map data structure to track the location of inodes in logs.

[bluesky.git] / bluesky / inode.c

diff --git a/bluesky/inode.c b/bluesky/inode.c
index 993be73..a79bcc1 100644 (file)
--- a/bluesky/inode.c
+++ b/bluesky/inode.c
@@ -50,8 +50,6 @@ void bluesky_inode_update_ctime(BlueSkyInode *inode, gboolean update_mtime)
     g_mutex_lock(inode->fs->lock);
     bluesky_list_unlink(&inode->fs->unlogged_list, inode->unlogged_list);
     inode->unlogged_list = bluesky_list_prepend(&inode->fs->unlogged_list, inode);
-    bluesky_list_unlink(&inode->fs->dirty_list, inode->dirty_list);
-    inode->dirty_list = bluesky_list_prepend(&inode->fs->dirty_list, inode);
     bluesky_list_unlink(&inode->fs->accessed_list, inode->accessed_list);
     inode->accessed_list = bluesky_list_prepend(&inode->fs->accessed_list, inode);
     g_mutex_unlock(inode->fs->lock);
@@ -88,8 +86,10 @@ BlueSkyFS *bluesky_new_fs(gchar *name)
     fs->next_inum = BLUESKY_ROOT_INUM + 1;
     fs->store = bluesky_store_new("file");
     fs->flushd_lock = g_mutex_new();
+    fs->flushd_cond = g_cond_new();
     fs->locations = g_hash_table_new(bluesky_cloudlog_hash,
                                      bluesky_cloudlog_equal);
+    fs->inode_map = g_sequence_new(NULL);
 
     fs->log_state = g_new0(BlueSkyCloudLogState, 1);
     fs->log_state->data = g_string_new("");
@@ -105,6 +105,7 @@ BlueSkyFS *bluesky_init_fs(gchar *name, BlueSkyStore *store)
         if (fs != NULL) {
             fs->store = store;
             fs->log = bluesky_log_new("journal");
+            fs->log->fs = fs;
             g_print("Loaded filesystem superblock\n");
             g_free(fs->name);
             fs->name = g_strdup(name);
@@ -117,6 +118,7 @@ BlueSkyFS *bluesky_init_fs(gchar *name, BlueSkyStore *store)
     BlueSkyFS *fs = bluesky_new_fs(name);
     fs->store = store;
     fs->log = bluesky_log_new("journal");
+    fs->log->fs = fs;
 
     BlueSkyInode *root = bluesky_new_inode(BLUESKY_ROOT_INUM, fs,
                                            BLUESKY_DIRECTORY);
@@ -312,8 +314,15 @@ void bluesky_inode_start_sync(BlueSkyInode *inode)
     inode->change_commit = inode->change_count;
     inode->change_time = 0;
     g_mutex_lock(inode->fs->lock);
+    bluesky_list_unlink(&inode->fs->unlogged_list, inode->unlogged_list);
+    inode->unlogged_list = NULL;
+
+    /* Since a new version of the inode has been written to the log, also
+     * schedule a future flush of the new data to cloud storage. */
     bluesky_list_unlink(&inode->fs->dirty_list, inode->dirty_list);
-    inode->dirty_list = NULL;
+    inode->dirty_list = bluesky_list_prepend(&inode->fs->dirty_list, inode);
+    inode->change_cloud = inode->change_count;
+
     g_mutex_unlock(inode->fs->lock);
 }