* thread.c (mutex_try_lock): check and set owner thread.

* thread_pthread.ci: fix to show error code in error message.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12173 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 0 deletions

diff --git a/thread.c b/thread.c
index 68fcf06294..8373318a9e 100644
--- a/thread.c
+++ b/thread.c
@@ -2138,7 +2138,12 @@ mutex_try_lock(VALUE self)
     mutex_t *mutex;
     GetMutexVal(self, mutex);
 
+    if (mutex->th == GET_THREAD()) {
+	rb_raise(rb_eThreadError, "deadlock; recursive locking");
+    }
+
     if (native_mutex_trylock(&mutex->lock) != EBUSY) {
+	mutex->th = GET_THREAD();
 	return Qtrue;
     }
     else {