Changeset 581 for trunk/kernel/libk/remote_mutex.c

Timestamp:

Oct 10, 2018, 3:11:53 PM (6 years ago)

Author:

alain

Message:

1) Improve the busylock debug infrastructure.
2) introduce a non-distributed, but portable implementation for the pthread_barrier.

File:

• trunk/kernel/libk/remote_mutex.c (modified) (2 diffs)

trunk/kernel/libk/remote_mutex.c

@@ -191 +191 @@
 void remote_mutex_lock( xptr_t mutex_xp )
 { 
+    // get cluster and pointers on calling thread
+    cxy_t            caller_cxy = local_cxy;
+    thread_t       * caller_ptr = CURRENT_THREAD;
+    xptr_t           caller_xp  = XPTR( caller_cxy , caller_ptr );
+
+    // check calling thread can yield
+    thread_assert_can_yield( caller_ptr , __FUNCTION__ );
+
     // get cluster and local pointer on mutex
     remote_mutex_t * mutex_ptr = GET_PTR( mutex_xp );
@@ -200 +208 @@
     xptr_t           root_xp  = XPTR( mutex_cxy , &mutex_ptr->root );
     xptr_t           lock_xp  = XPTR( mutex_cxy , &mutex_ptr->lock );
-
-    // get cluster and pointers on calling thread
-    cxy_t            caller_cxy = local_cxy;
-    thread_t       * caller_ptr = CURRENT_THREAD;
-    xptr_t           caller_xp  = XPTR( caller_cxy , caller_ptr );
-
-// check calling thread can yield
-assert( (caller_ptr->busylocks == 0),
-"cannot yield : busylocks = %d\n", caller_ptr->busylocks );
 
     while( 1 )