diff options
| author |   Sirshak Das <sirshak.das@arm.com> | 2018-10-03 22:53:51 +0000 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-10-19 07:10:47 +0000 |
| commit | 2f6d7bb93c157b874efb79a2d1583a4c368bf89a (patch) | |
| tree | 05dc2867c598cbb8d711f074b4b0eb62dd464f41 /src/plugins/lb | |
| parent | bf3443b0f852f5a4c551d12f926defbd047f2161 (diff) | |
vppinfra: add atomic macros for __sync builtins
This is first part of addition of atomic macros with only macros for
__sync builtins.
- Based on earlier patch by Damjan (https://gerrit.fd.io/r/#/c/10729/)
Additionally
- clib_atomic_release macro added and used in the absence
of any memory barrier.
- clib_atomic_bool_cmp_and_swap added
Change-Id: Ie4e48c1e184a652018d1d0d87c4be80ddd180a3b
Original-patch-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Sirshak Das <sirshak.das@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Ola Liljedahl <ola.liljedahl@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>
Diffstat (limited to 'src/plugins/lb')
| -rw-r--r-- | src/plugins/lb/lb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/plugins/lb/lb.c b/src/plugins/lb/lb.c index 1936c1983ee..76bbfa0ac81 100644 --- a/src/plugins/lb/lb.c +++ b/src/plugins/lb/lb.c @@ -27,8 +27,8 @@ lb_main_t lb_main; -#define lb_get_writer_lock() do {} while(__sync_lock_test_and_set (lb_main.writer_lock, 1)) -#define lb_put_writer_lock() lb_main.writer_lock[0] = 0 +#define lb_get_writer_lock() do {} while(clib_atomic_test_and_set (lb_main.writer_lock)) +#define lb_put_writer_lock() clib_atomic_release (lb_main.writer_lock) static void lb_as_stack (lb_as_t *as); |