Changeset 23 for trunk/kernel/libk/remote_rwlock.c

Timestamp:

Jun 18, 2017, 10:06:41 PM (7 years ago)

Author:

alain

Message:

Introduce syscalls.

File:

• trunk/kernel/libk/remote_rwlock.c (modified) (3 diffs)

trunk/kernel/libk/remote_rwlock.c

@@ -2 +2 @@
  * remote_rwlock.c - kernel remote rwlock implementation.
  * 
- * Authors  Mohamed Karaoui (2015)
- *          Alain   Greiner (2016)
+ * Authors    Alain   Greiner (2016,2017)
  *
  * Copyright (c) UPMC Sorbonne Universites
@@ -67 +66 @@
 
     // get next free ticket
-    ticket = hal_remote_lw( ticket_xp );
-
-    // loop to take the lock 
+    ticket = hal_remote_atomic_add( ticket_xp , 1 );
+
+    // busy waiting loop to take the lock 
         while( ticket != hal_remote_lw( current_xp ) )
         {
@@ -147 +146 @@
 
     // get next free ticket
-    ticket = hal_remote_lw( ticket_xp );
+    ticket = hal_remote_atomic_add( ticket_xp , 1 );
 
     // loop to take the lock