Changeset 367 for trunk/kernel/kern/thread.c

Timestamp:

Aug 14, 2017, 11:39:03 AM (7 years ago)

Author:

alain

Message:

Change Time unit from cycle to TICK (in millisecond).
Fix several bugs in VFS.

File:

• trunk/kernel/kern/thread.c (modified) (1 diff)

trunk/kernel/kern/thread.c

@@ -638 +638 @@
 {
     thread_t * this = CURRENT_THREAD;
-    return ( (this->local_locks == 0) && (this->remote_locks == 0) );
-}
-
-///////////////////////////
-bool_t thread_check_sched()
+    return (this->local_locks == 0) && (this->remote_locks == 0);
+}
+
+/////////////////////////
+void thread_check_sched()
 {
     thread_t * this = CURRENT_THREAD;
 
-    // check locks count
-    if( (this->local_locks != 0) || (this->remote_locks != 0) )
-        return false;
-
-    if( this->flags & THREAD_FLAG_SCHED )
+        if( (this->local_locks == 0) && 
+        (this->remote_locks == 0) &&
+        (this->flags & THREAD_FLAG_SCHED) ) 
+    {
+        this->flags &= ~THREAD_FLAG_SCHED;
         sched_yield( NULL );
-
-    return true;
-
-#if 0
-    // compute elapsed time, taking into account 32 bits register wrap
-    uint32_t elapsed;
-    uint32_t time_now   = hal_get_cycles();
-    uint32_t time_last  = this->time_last_check;
-    if( time_now < time_last ) elapsed = (0xFFFFFFFF - time_last) + time_now;
-        else                       elapsed = time_now - time_last;
-
-    // update thread time
-    this->time_last_check = time_now;
-
-        // check elapsed time
-        if( elapsed < CONFIG_CORE_CHECK_EVERY ) return false;
-    else                                    return true;
-#endif
+    }
 }