diff options
Diffstat (limited to 'src/cairo-atomic-private.h')
| -rw-r--r-- | src/cairo-atomic-private.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/cairo-atomic-private.h b/src/cairo-atomic-private.h index 572f8494..8d02ec94 100644 --- a/src/cairo-atomic-private.h +++ b/src/cairo-atomic-private.h @@ -59,8 +59,24 @@ CAIRO_BEGIN_DECLS typedef int cairo_atomic_int_t; +#ifdef ATOMIC_OP_NEEDS_MEMORY_BARRIER +static cairo_always_inline cairo_atomic_int_t +_cairo_atomic_int_get (cairo_atomic_int_t *x) +{ + __sync_synchronize (); + return *x; +} + +static cairo_always_inline void * +_cairo_atomic_ptr_get (void **x) +{ + __sync_synchronize (); + return *x; +} +#else # define _cairo_atomic_int_get(x) (*x) # define _cairo_atomic_ptr_get(x) (*x) +#endif # define _cairo_atomic_int_inc(x) ((void) __sync_fetch_and_add(x, 1)) # define _cairo_atomic_int_dec_and_test(x) (__sync_fetch_and_add(x, -1) == 1) |