* thread.c, vm_core.h: make gvl_acquire/release/init/destruct

  APIs to modularize GVL implementation.
* thread_pthread.c, thread_pthread.h: Two GVL implementations.
  (1) Simple locking GVL which is same as existing GVL.
  (2) Wake-up queued threads.  The wake-up order is simple FIFO.
  (We can make several queues to support exact priorities, however
  this causes some issues such as priority inversion and so on.)
  This impl. prevents spin-loop (*1) caused on SMP environemnts.
  *1: Only one Ruby thread acqures GVL again and again.
  Bug #2359 [ruby-core:26694]
* thread_win32.c, thread_win32.h: Using simple lock
  not by CRITICAL_SECTION but by Mutex.
  Bug #3890 [ruby-dev:42315]
* vm.c (ruby_vm_destruct): ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29956 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 2 deletions

diff --git a/vm.c b/vm.c
index 9e7087af04..2a25cb1f37 100644
--- a/vm.c
+++ b/vm.c
@@ -1537,8 +1537,7 @@ ruby_vm_destruct(rb_vm_t *vm)
 	    st_free_table(vm->living_threads);
 	    vm->living_threads = 0;
 	}
-	rb_thread_lock_unlock(&vm->global_vm_lock);
-	rb_thread_lock_destroy(&vm->global_vm_lock);
+	rb_vm_gvl_destroy(vm);
 	ruby_xfree(vm);
 	ruby_current_vm = 0;
 #if defined(ENABLE_VM_OBJSPACE) && ENABLE_VM_OBJSPACE