Changeset fc10e1b in mainline for uspace/lib/c/generic/private/futex.h

Timestamp:

2018-09-07T16:34:11Z (7 years ago)

Author:

Jiří Zárevúcky <jiri.zarevucky@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d2c91ab

Parents:

508b0df1 (diff), e90cfa6 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge branch 'atomic'

Use more of <stdatomic.h> in kernel. Increment/decrement macros kept because
the are handy. atomic_t currently kept because I'm way too lazy to go through
all uses and think about the most appropriate replacement.

File:

• uspace/lib/c/generic/private/futex.h (modified) (1 diff)

uspace/lib/c/generic/private/futex.h

@@ -81 +81 @@
 
 #define futex_give_to(fut, owner) ((void)0)
-#define futex_assert_is_locked(fut) assert((atomic_signed_t) (fut)->val.count <= 0)
+#define futex_assert_is_locked(fut) assert(atomic_load_explicit(&(fut)->val, memory_order_relaxed) <= 0)
 #define futex_assert_is_not_locked(fut) ((void)0)