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Annotation of embedaddon/nginx/src/os/unix/ngx_sunpro_atomic_sparc64.h, revision 1.1.1.1

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()