diff options
| -rw-r--r-- | absl/base/internal/spinlock.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/absl/base/internal/spinlock.h b/absl/base/internal/spinlock.h index 36f823ad..301c3e3b 100644 --- a/absl/base/internal/spinlock.h +++ b/absl/base/internal/spinlock.h @@ -202,6 +202,15 @@ class ABSL_LOCKABLE ABSL_ATTRIBUTE_WARN_UNUSED SpinLock { // Corresponding locker object that arranges to acquire a spinlock for // the duration of a C++ scope. +// +// TODO(b/176172494): Use only [[nodiscard]] when baseline is raised. +// TODO(b/6695610): Remove forward declaration when #ifdef is no longer needed. +#if ABSL_HAVE_CPP_ATTRIBUTE(nodiscard) +class [[nodiscard]] SpinLockHolder; +#else +class ABSL_MUST_USE_RESULT ABSL_ATTRIBUTE_TRIVIAL_ABI SpinLockHolder; +#endif + class ABSL_SCOPED_LOCKABLE SpinLockHolder { public: inline explicit SpinLockHolder(SpinLock* l) ABSL_EXCLUSIVE_LOCK_FUNCTION(l) |