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Annotation of embedaddon/nginx/src/os/unix/ngx_sunpro_atomic_sparc64.h, revision 1.1

1.1     ! misho       1: 
        !             2: /*
        !             3:  * Copyright (C) Igor Sysoev
        !             4:  * Copyright (C) Nginx, Inc.
        !             5:  */
        !             6: 
        !             7: 
        !             8: #if (NGX_PTR_SIZE == 4)
        !             9: #define NGX_CASA  ngx_casa
        !            10: #else
        !            11: #define NGX_CASA  ngx_casxa
        !            12: #endif
        !            13: 
        !            14: 
        !            15: ngx_atomic_uint_t
        !            16: ngx_casa(ngx_atomic_uint_t set, ngx_atomic_uint_t old, ngx_atomic_t *lock);
        !            17: 
        !            18: ngx_atomic_uint_t
        !            19: ngx_casxa(ngx_atomic_uint_t set, ngx_atomic_uint_t old, ngx_atomic_t *lock);
        !            20: 
        !            21: /* the code in src/os/unix/ngx_sunpro_sparc64.il */
        !            22: 
        !            23: 
        !            24: static ngx_inline ngx_atomic_uint_t
        !            25: ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
        !            26:     ngx_atomic_uint_t set)
        !            27: {
        !            28:     set = NGX_CASA(set, old, lock);
        !            29: 
        !            30:     return (set == old);
        !            31: }
        !            32: 
        !            33: 
        !            34: static ngx_inline ngx_atomic_int_t
        !            35: ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add)
        !            36: {
        !            37:     ngx_atomic_uint_t  old, res;
        !            38: 
        !            39:     old = *value;
        !            40: 
        !            41:     for ( ;; ) {
        !            42: 
        !            43:         res = old + add;
        !            44: 
        !            45:         res = NGX_CASA(res, old, value);
        !            46: 
        !            47:         if (res == old) {
        !            48:             return res;
        !            49:         }
        !            50: 
        !            51:         old = res;
        !            52:     }
        !            53: }
        !            54: 
        !            55: 
        !            56: #define ngx_memory_barrier()                                                  \
        !            57:         __asm (".volatile");                                                  \
        !            58:         __asm ("membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad");   \
        !            59:         __asm (".nonvolatile")
        !            60: 
        !            61: #define ngx_cpu_pause()