From 517ef2bd39a0d89fc4a99201d5f97ceea1766397 Mon Sep 17 00:00:00 2001
From: Monty <monty@mariadb.org>
Date: Sun, 26 Jul 2015 14:31:22 +0300
Subject: Added easy way to assert if another thread has died. Added some extra
 safety asserts in MyISAM key cache.

my_thread_var->init is now:
0 at startup
1 at init
2 when thread dies
---
 mysys/my_thr_init.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'mysys/my_thr_init.c')

diff --git a/mysys/my_thr_init.c b/mysys/my_thr_init.c
index d9dbacc8524..1e4b85583b1 100644
--- a/mysys/my_thr_init.c
+++ b/mysys/my_thr_init.c
@@ -372,6 +372,8 @@ void my_thread_end(void)
       mysql_cond_signal(&THR_COND_threads);
     mysql_mutex_unlock(&THR_LOCK_threads);
 
+    /* Trash variable so that we can detect false accesses to my_thread_var */
+    tmp->init= 2;
     TRASH(tmp, sizeof(*tmp));
     free(tmp);
   }
-- 
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