Changeset 337 for trunk/kernel/kern/scheduler.c

Timestamp:

Aug 7, 2017, 12:50:17 PM (7 years ago)

Author:

alain

Message:

Introduce the delayed context switch if current thread has a lock.

File:

• trunk/kernel/kern/scheduler.c (modified) (2 diffs)

trunk/kernel/kern/scheduler.c

@@ -283 +283 @@
     __FUNCTION__, current->trdid, local_cxy, core->lid, hal_time_stamp() );
 
-    // check calling thread released all locks
-    assert( (thread_can_yield() == true), __FUNCTION__, "locks not released\n");
+    // delay the yield if current thread has locks
+    if( thread_can_yield() == false )
+    {
+        current->flags |= THREAD_FLAG_SCHED;
+        return;
+    }
 
     // first loop on all threads to handle pending signals
@@ -325 +329 @@
         // restore IRQs when calling thread resume
         hal_restore_irq( sr_save );
-
-        sched_dmsg("\n[INFO] %s : thread %x on core[%x,%d] / cycle %d\n",
-        __FUNCTION__, current->trdid, local_cxy, core->lid, hal_time_stamp() );
     }
     else