ko1	2017-06-26 14:30:07 +0900 (Mon, 26 Jun 2017)

  New Revision: 59174

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=59174

  Log:
    Do not store/restore Thread#status on fiber switching.
    
    * cont.c (cont_restore_thread): On Fiber switching, thread status shold be
      THREAD_RUNNABLE so that we don't need to store/restore this field.
    
    * cont.c (cont_save_thread): ditto.

  Modified files:
    trunk/cont.c
Index: cont.c
===================================================================
--- cont.c	(revision 59173)
+++ cont.c	(revision 59174)
@@ -413,7 +413,7 @@ cont_save_thread(rb_context_t *cont, rb_ https://github.com/ruby/ruby/blob/trunk/cont.c#L413
     sth->local_storage = th->local_storage;
     sth->safe_level = th->safe_level;
     sth->raised_flag = th->raised_flag;
-    sth->status = th->status;
+    VM_ASSERT(th->status == THREAD_RUNNABLE);
     sth->tag = th->tag;
     sth->protect_tag = th->protect_tag;
     sth->errinfo = th->errinfo;
@@ -560,7 +560,7 @@ cont_restore_thread(rb_context_t *cont) https://github.com/ruby/ruby/blob/trunk/cont.c#L560
     th->ec.cfp = sth->ec.cfp;
     th->safe_level = sth->safe_level;
     th->raised_flag = sth->raised_flag;
-    th->status = sth->status;
+    VM_ASSERT(sth->status == THREAD_RUNNABLE);
     th->tag = sth->tag;
     th->protect_tag = sth->protect_tag;
     th->errinfo = sth->errinfo;

--
ML: ruby-changes@q...
Info: http://www.atdot.net/~ko1/quickml/