Changeset 9413c0d in mainline for uspace/srv/vfs/vfs_node.c

Timestamp:

2008-01-06T12:50:51Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

b3c38750

Parents:

f57f8ea

Message:

Add basic rwlock API for uspace so that VFS can be designed/implemented using
this API. So far, the implementation of this API merely wraps futexes into
rwlocks. Real rwlocks are wanted by ticket #54.

Using the new rwlock API, replace the VFS node content futex with an rwlock.
Lock the contents rwlock as reader on reads and as writer on writes.

File:

• uspace/srv/vfs/vfs_node.c (modified) (2 diffs)

uspace/srv/vfs/vfs_node.c

@@ -41 +41 @@
 #include <atomic.h>
 #include <futex.h>
+#include <rwlock.h>
 #include <libadt/hash_table.h>
 
@@ -147 +148 @@
                 node->index = triplet->index;
                 link_initialize(&node->nh_link);
-                futex_initialize(&node->contents_futex, 1);
+                rwlock_initialize(&node->contents_rwlock);
                 hash_table_insert(&nodes, key, &node->nh_link);
         } else {