Changeset 101 for trunk/kernel/libk

Timestamp:

Jun 29, 2017, 4:44:52 PM (7 years ago)

Author:

alain

Message:

euh...

Location:

trunk/kernel/libk

Files:

• remote_spinlock.c (modified) (2 diffs)
• remote_spinlock.h (modified) (1 diff)

trunk/kernel/libk/remote_spinlock.c

@@ -162 +162 @@
         cxy_t               lock_cxy = GET_CXY( lock_xp );
 
-        // get cluster and local pointer on local thread
-        cxy_t               thread_cxy = local_cxy;
-        thread_t          * thread_ptr = CURRENT_THREAD;
+    // get cluster and local pointer on calling thread
+    cxy_t               thread_cxy = local_cxy;
+    thread_t          * thread_ptr = CURRENT_THREAD;
 
         // disable interrupts
@@ -219 +219 @@
 }
 
+//////////////////////////////////////////////
+xptr_t remote_spinlock_owner( xptr_t lock_xp )
+{
+    // get cluster and local pointer on remote_spinlock
+    remote_spinlock_t * lock_ptr = (remote_spinlock_t *)GET_PTR( lock_xp );
+    cxy_t               lock_cxy = GET_CXY( lock_xp );
+
+    return hal_remote_lw( XPTR( lock_cxy , &lock_ptr->owner ) );
+}

trunk/kernel/libk/remote_spinlock.h

@@ -100 +100 @@
 void remote_spinlock_unlock( xptr_t  lock_xp );
 
+/***************************************************************************************
+ * This debug function returns the current owner of a remote spinlock.
+ ***************************************************************************************
+ * @ lock_xp    : extended pointer on the remote spinlock
+ * @ return XPTR_NULL if not taken / return owner thread if lock already taken
+ **************************************************************************************/
+xptr_t remote_spinlock_owner( xptr_t  lock_xp );
+
+
 #endif