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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-08-06 01:44:03 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-08-06 01:44:03 +0000
commitec10c033a7f6ba4819b7a65eb31eba432028f28a (patch)
treed46a845820f797fae3eed46958c6dee3ba6ed3a6 /node.c
parentff7eb4c656b0d7629ff00366878fed5fbf86eb93 (diff)
ruby_atomic.h: atomic VALUE operations
* ruby_atomic.h (ATOMIC_VALUE_EXCHANGE, ATOMIC_VALUE_CAS): add atomic operations for VALUE. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51498 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'node.c')
-rw-r--r--node.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/node.c b/node.c
index 7551a81..84e7bdd 100644
--- a/node.c
+++ b/node.c
@@ -1090,11 +1090,9 @@ rb_alloc_tmp_buffer(volatile VALUE *store, long len)
void
rb_free_tmp_buffer(volatile VALUE *store)
{
- VALUE s = *store;
- *store = 0;
+ VALUE s = ATOMIC_VALUE_EXCHANGE(*store, 0);
if (s) {
- void *ptr = RNODE(s)->u1.node;
- RNODE(s)->u1.node = 0;
+ void *ptr = ATOMIC_PTR_EXCHANGE(RNODE(s)->u1.node, 0);
RNODE(s)->u3.cnt = 0;
xfree(ptr);
}