thread.c: fix for non-scalar pthread_t

* configure.in (rb_cv_scalar_pthread_t): pthread_t is not required
  to be a scalar type.
* thread.c (fill_thread_id_string, thread_id_str): dump pthread_t
  in hexadecimal form if it is not a scalar type, assume it can be
  represented in a pointer form otherwise.  based on the patch by
  Rei Odaira at [ruby-core:62867].  [ruby-core:62857] [Bug #9884]
* thread_pthread.c (Init_native_thread, thread_start_func_1),
  (native_thread_create): set thread_id_str if needed.
* vm_core.h (rb_thread_t): add thread_id_string if needed.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46406 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 0 deletions

diff --git a/vm.c b/vm.c
index 52e1f070bf..b4e7a5c462 100644
--- a/vm.c
+++ b/vm.c
@@ -2131,6 +2131,9 @@ th_init(rb_thread_t *th, VALUE self)
     th->last_status = Qnil;
     th->waiting_fd = -1;
     th->root_svar = Qnil;
+#ifdef NON_SCALAR_THREAD_ID
+    th->thread_id_string[0] = '\0';
+#endif
 
 #if OPT_CALL_THREADED_CODE
     th->retval = Qundef;