diff options
| author |  herb <herb@google.com> | 2015-09-16 07:46:17 -0700 |
|---|---|---|
| committer |  Commit bot <commit-bot@chromium.org> | 2015-09-16 07:46:17 -0700 |
| commit | 3667d5bf3f6d8eea90142046202c4f61cfcd5fea (patch) | |
| tree | 2d3bd7380f03fb5696e8e61a1f1266e4553cdca6 /include/core | |
| parent | 42bd6bfd0dff456e8c3ec98ca8181a5fa02398f8 (diff) | |
Add subtract to atomics.
BUG=skia:
Review URL: https://codereview.chromium.org/1348113004
Diffstat (limited to 'include/core')
| -rw-r--r-- | include/core/SkAtomics.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/core/SkAtomics.h b/include/core/SkAtomics.h index d31d9c64fb..7c5294b76d 100644 --- a/include/core/SkAtomics.h +++ b/include/core/SkAtomics.h @@ -30,6 +30,9 @@ template <typename T> T sk_atomic_fetch_add(T*, T, sk_memory_order = sk_memory_order_seq_cst); template <typename T> +T sk_atomic_fetch_sub(T*, T, sk_memory_order = sk_memory_order_seq_cst); + +template <typename T> bool sk_atomic_compare_exchange(T*, T* expected, T desired, sk_memory_order success = sk_memory_order_seq_cst, sk_memory_order failure = sk_memory_order_seq_cst); @@ -58,6 +61,10 @@ public: return sk_atomic_fetch_add(&fVal, val, mo); } + T fetch_sub(const T& val, sk_memory_order mo = sk_memory_order_seq_cst) { + return sk_atomic_fetch_sub(&fVal, val, mo); + } + bool compare_exchange(T* expected, const T& desired, sk_memory_order success = sk_memory_order_seq_cst, sk_memory_order failure = sk_memory_order_seq_cst) { |