3 * Copyright (C) Igor Sysoev
7 #if (NGX_PTR_SIZE == 4)
8 #define NGX_CASA ngx_casa
10 #define NGX_CASA ngx_casxa
15 ngx_casa(ngx_atomic_uint_t set, ngx_atomic_uint_t old, ngx_atomic_t *lock);
18 ngx_casxa(ngx_atomic_uint_t set, ngx_atomic_uint_t old, ngx_atomic_t *lock);
20 /* the code in src/os/unix/ngx_sunpro_sparc64.il */
23 static ngx_inline ngx_atomic_uint_t
24 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
25 ngx_atomic_uint_t set)
27 set = NGX_CASA(set, old, lock);
33 static ngx_inline ngx_atomic_int_t
34 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add)
36 ngx_atomic_uint_t old, res;
44 res = NGX_CASA(res, old, value);
55 #define ngx_memory_barrier() \
56 __asm (".volatile"); \
57 __asm ("membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad"); \
58 __asm (".nonvolatile")
60 #define ngx_cpu_pause()