Changes in uspace/srv/vfs/vfs_lookup.c [b33ec43:79ae36dd] in mainline

File:

• uspace/srv/vfs/vfs_lookup.c (modified) (4 diffs)

uspace/srv/vfs/vfs_lookup.c

@@ -50 +50 @@
 
 FIBRIL_MUTEX_INITIALIZE(plb_mutex);
-LIST_INITIALIZE(plb_entries);   /**< PLB entry ring buffer. */
+LIST_INITIALIZE(plb_head);      /**< PLB entry ring buffer. */
 uint8_t *plb = NULL;
 
@@ -102 +102 @@
         size_t last;    /* the last free index */
 
-        if (list_empty(&plb_entries)) {
+        if (list_empty(&plb_head)) {
                 first = 0;
                 last = PLB_SIZE - 1;
         } else {
-                plb_entry_t *oldest = list_get_instance(
-                    list_first(&plb_entries), plb_entry_t, plb_link);
-                plb_entry_t *newest = list_get_instance(
-                    list_last(&plb_entries), plb_entry_t, plb_link);
+                plb_entry_t *oldest = list_get_instance(plb_head.next,
+                    plb_entry_t, plb_link);
+                plb_entry_t *newest = list_get_instance(plb_head.prev,
+                    plb_entry_t, plb_link);
 
                 first = (newest->index + newest->len) % PLB_SIZE;
@@ -145 +145 @@
          * buffer.
          */
-        list_append(&entry.plb_link, &plb_entries);
+        list_append(&entry.plb_link, &plb_head);
         
         fibril_mutex_unlock(&plb_mutex);
@@ -201 +201 @@
 }
 
+/** Perform a node open operation.
+ *
+ * @return EOK on success or an error code from errno.h.
+ *
+ */
+int vfs_open_node_internal(vfs_lookup_res_t *result)
+{
+        async_exch_t *exch = vfs_exchange_grab(result->triplet.fs_handle);
+        
+        ipc_call_t answer;
+        aid_t req = async_send_2(exch, VFS_OUT_OPEN_NODE,
+            (sysarg_t) result->triplet.devmap_handle,
+            (sysarg_t) result->triplet.index, &answer);
+        
+        sysarg_t rc;
+        async_wait_for(req, &rc);
+        vfs_exchange_release(exch);
+        
+        if (rc == EOK) {
+                result->size =
+                    MERGE_LOUP32(IPC_GET_ARG1(answer), IPC_GET_ARG2(answer));
+                result->lnkcnt = (unsigned int) IPC_GET_ARG3(answer);
+                if (IPC_GET_ARG4(answer) & L_FILE)
+                        result->type = VFS_NODE_FILE;
+                else if (IPC_GET_ARG4(answer) & L_DIRECTORY)
+                        result->type = VFS_NODE_DIRECTORY;
+                else
+                        result->type = VFS_NODE_UNKNOWN;
+        }
+        
+        return rc;
+}
+
 /**
  * @}