ko1	2017-01-31 15:39:01 +0900 (Tue, 31 Jan 2017)

  New Revision: 57478

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=57478

  Log:
    define rb_thread_sleep_deadly_allow_spurious_wakeup().
    
    * thread.c, thread_sync.c: define new function
      rb_thread_sleep_deadly_allow_spurious_wakeup() and use it instead of
      using sleep_forever() directly.

  Modified files:
    trunk/thread.c
    trunk/thread_sync.c
Index: thread_sync.c
===================================================================
--- thread_sync.c	(revision 57477)
+++ thread_sync.c	(revision 57478)
@@ -420,7 +420,7 @@ rb_mutex_abandon_all(rb_mutex_t *mutexes https://github.com/ruby/ruby/blob/trunk/thread_sync.c#L420
 static VALUE
 rb_mutex_sleep_forever(VALUE time)
 {
-    sleep_forever(GET_THREAD(), TRUE, FALSE); /* permit spurious check */
+    rb_thread_sleep_deadly_allow_spurious_wakeup();
     return Qnil;
 }
 
Index: thread.c
===================================================================
--- thread.c	(revision 57477)
+++ thread.c	(revision 57478)
@@ -85,6 +85,7 @@ static ID id_locals; https://github.com/ruby/ruby/blob/trunk/thread.c#L85
 static void sleep_timeval(rb_thread_t *th, struct timeval time, int spurious_check);
 static void sleep_wait_for_interrupt(rb_thread_t *th, double sleepsec, int spurious_check);
 static void sleep_forever(rb_thread_t *th, int nodeadlock, int spurious_check);
+static void rb_thread_sleep_deadly_allow_spurious_wakeup(void);
 static double timeofday(void);
 static int rb_threadptr_dead(rb_thread_t *th);
 static void rb_check_deadlock(rb_vm_t *vm);
@@ -1146,6 +1147,13 @@ rb_thread_sleep_deadly(void) https://github.com/ruby/ruby/blob/trunk/thread.c#L1147
     sleep_forever(GET_THREAD(), TRUE, TRUE);
 }
 
+static void
+rb_thread_sleep_deadly_allow_spurious_wakeup(void)
+{
+    thread_debug("rb_thread_sleep_deadly_allow_spurious_wakeup\n");
+    sleep_forever(GET_THREAD(), TRUE, FALSE);
+}
+
 static double
 timeofday(void)
 {

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