* thread_win32.c (native_thread_destroy): decreased the probability of

  using the interrupt event in the thread termination.
  see [ruby-core:27199].


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26207 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 7 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index 9e9cd1cf7a..592fe5cdd1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Thu Dec 31 03:27:53 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* thread_win32.c (native_thread_destroy): decreased the probability of
+	  using the interrupt event in the thread termination.
+	  see [ruby-core:27199].
+
 Thu Dec 31 02:35:57 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* thread_win32.c (w32_error): should report the function.
diff --git a/thread_win32.c b/thread_win32.c
index 1a7917e518..3cff714e87 100644
--- a/thread_win32.c
+++ b/thread_win32.c
@@ -449,10 +449,9 @@ native_thread_init_stack(rb_thread_t *th)
 static void
 native_thread_destroy(rb_thread_t *th)
 {
-    HANDLE intr = th->native_thread_data.interrupt_event;
+    HANDLE intr = InterlockedExchangePointer(&th->native_thread_data.interrupt_event, 0);
     native_mutex_destroy(&th->interrupt_lock);
     thread_debug("close handle - intr: %p, thid: %p\n", intr, th->thread_id);
-    th->native_thread_data.interrupt_event = 0;
     w32_close_handle(intr);
 }