#At file:///H:/bzr-new/55bf/ based on revid:vvaintroub@stripped
3208 Vladislav Vaintroub 2010-09-13
Bug#56585 : use "int" instead of "volatile LONG" for reader_count.
volatile LONG is the type used by InterlockedXXX operations and
those were removed in the latest patch.
Access to reader_count always happens inside critical sections, i.e
with memory barriers. Reordering by compiler is not possible either,
so volatile is superfluous and is now removed. LONG is replaced
by int for symmetric and aesthetic reasons.
=== modified file 'include/my_pthread.h'
--- a/include/my_pthread.h 2010-09-11 20:35:24 +0000
+++ b/include/my_pthread.h 2010-09-13 07:59:52 +0000
@@ -638,7 +638,7 @@ typedef struct _win_prlock
- volatile LONG reader_count; /*readers (all, pending and active) */
+ int reader_count; /*readers (all, pending and active) */
int writer_recursion_count; /* recursion count for writer lock */
Attachment: [text/bzr-bundle] firstname.lastname@example.org
|• bzr commit into mysql-5.5-bugfixing branch (vvaintroub:3208) Bug#56585||Vladislav Vaintroub||13 Sep|