Preliminary symlink/readlink support.

[bluesky.git] / bluesky / file.c

diff --git a/bluesky/file.c b/bluesky/file.c
index ccb45e4..3be40f0 100644 (file)
--- a/bluesky/file.c
+++ b/bluesky/file.c
@@ -119,7 +119,6 @@ void bluesky_file_write(BlueSkyInode *inode, uint64_t offset,
         BlueSkyBlock *b = &g_array_index(inode->blocks, BlueSkyBlock,
                                          block_num);
         memcpy(&b->data->data[block_offset], data, bytes);
-        bluesky_block_flush(inode->fs, b);
 
         offset += bytes;
         data += bytes;
@@ -127,7 +126,6 @@ void bluesky_file_write(BlueSkyInode *inode, uint64_t offset,
     }
 
     bluesky_inode_update_ctime(inode, 1);
-    bluesky_inode_flush(inode->fs, inode);
 }
 
 void bluesky_file_read(BlueSkyInode *inode, uint64_t offset,
@@ -183,7 +181,8 @@ void bluesky_block_fetch(BlueSkyFS *fs, BlueSkyBlock *block)
 }
 
 /* Write the given block to cloud-backed storage and mark it clean. */
-void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block)
+void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block,
+                         BlueSkyStoreAsync *barrier)
 {
     if (block->type != BLUESKY_BLOCK_DIRTY)
         return;
@@ -194,7 +193,18 @@ void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block)
     g_checksum_update(csum, data->data, data->len);
     gchar *name = g_strdup(g_checksum_get_string(csum));
 
-    bluesky_store_put(fs->store, name, data);
+    /* Store the file data asynchronously, and don't bother waiting for a
+     * response. */
+    BlueSkyStoreAsync *async = bluesky_store_async_new(fs->store);
+    async->op = STORE_OP_PUT;
+    async->key = g_strdup(name);
+    bluesky_string_ref(data);
+    async->data = data;
+    bluesky_store_async_submit(async);
+    if (barrier != NULL)
+        bluesky_store_add_barrier(barrier, async);
+    bluesky_store_async_unref(async);
+
     g_free(block->ref);
     block->ref = name;
 
@@ -206,3 +216,14 @@ void bluesky_block_flush(BlueSkyFS *fs, BlueSkyBlock *block)
     g_checksum_free(csum);
     //bluesky_string_unref(data);
 }
+
+/* Flush all blocks in a file to stable storage. */
+void bluesky_file_flush(BlueSkyInode *inode, BlueSkyStoreAsync *barrier)
+{
+    g_return_if_fail(inode->type == BLUESKY_REGULAR);
+
+    for (int i = 0; i < inode->blocks->len; i++) {
+        BlueSkyBlock *b = &g_array_index(inode->blocks, BlueSkyBlock, i);
+        bluesky_block_flush(inode->fs, b, barrier);
+    }
+}