diff options
| author | John Hawthorn <[email protected]> | 2025-05-14 18:28:53 -0700 |
|---|---|---|
| committer | John Hawthorn <[email protected]> | 2025-05-20 09:56:31 -0700 |
| commit | 05e0e7223acbc9ab223dd8f4b342d5eb6d3ae8c7 (patch) | |
| tree | 15c3ed684845a6828e0935e87c6d90c2a3c46aec /ruby_atomic.h | |
| parent | cd15cc250fa7dc6482833327728eeff641d2e41d (diff) | |
Use atomic load to read interrupt mask
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/13357
Diffstat (limited to 'ruby_atomic.h')
| -rw-r--r-- | ruby_atomic.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/ruby_atomic.h b/ruby_atomic.h index 57d341082d..085c307ac6 100644 --- a/ruby_atomic.h +++ b/ruby_atomic.h @@ -1,3 +1,6 @@ +#ifndef INTERNAL_ATOMIC_H +#define INTERNAL_ATOMIC_H + #include "ruby/atomic.h" /* shim macros only */ @@ -21,3 +24,16 @@ #define ATOMIC_SUB(var, val) RUBY_ATOMIC_SUB(var, val) #define ATOMIC_VALUE_CAS(var, oldval, val) RUBY_ATOMIC_VALUE_CAS(var, oldval, val) #define ATOMIC_VALUE_EXCHANGE(var, val) RUBY_ATOMIC_VALUE_EXCHANGE(var, val) + +static inline rb_atomic_t +rbimpl_atomic_load_relaxed(rb_atomic_t *ptr) +{ +#if defined(HAVE_GCC_ATOMIC_BUILTINS) + return __atomic_load_n(ptr, __ATOMIC_RELAXED); +#else + return *ptr; +#endif +} +#define ATOMIC_LOAD_RELAXED(var) rbimpl_atomic_load_relaxed(&(var)) + +#endif |