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annotate src/os/unix/ngx_sunpro_atomic_sparc64.h @ 1186:c114defa4518
fix atomic operations on sparc64 built by SunPro C
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 27 Apr 2007 14:36:28 +0000 |
| parents | 3f8a2132b93d |
| children | d620f497c50f |
| rev | line source |
|---|---|
| 561 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #if (NGX_PTR_SIZE == 4) | |
| 8 #define NGX_CASA ngx_casa | |
| 9 #else | |
| 10 #define NGX_CASA ngx_casxa | |
| 11 #endif | |
| 12 | |
| 13 | |
| 14 ngx_atomic_uint_t | |
| 15 ngx_casa(ngx_atomic_uint_t set, ngx_atomic_uint_t old, ngx_atomic_t *lock); | |
| 16 | |
| 17 ngx_atomic_uint_t | |
| 18 ngx_casxa(ngx_atomic_uint_t set, ngx_atomic_uint_t old, ngx_atomic_t *lock); | |
| 19 | |
| 20 /* the code in src/os/unix/ngx_sunpro_sparc64.il */ | |
| 21 | |
| 22 | |
| 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) | |
| 26 { | |
|
1186
c114defa4518
fix atomic operations on sparc64 built by SunPro C
Igor Sysoev <igor@sysoev.ru>
parents:
611
diff
changeset
|
27 set = NGX_CASA(set, old, lock); |
| 561 | 28 |
| 29 return (set == old); | |
| 577 | 30 } |
| 561 | 31 |
| 32 | |
| 33 static ngx_inline ngx_atomic_int_t | |
| 34 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add) | |
| 35 { | |
| 36 ngx_atomic_uint_t old, res; | |
| 37 | |
| 38 old = *value; | |
| 39 | |
| 40 for ( ;; ) { | |
| 41 | |
| 42 res = old + add; | |
| 43 | |
|
1186
c114defa4518
fix atomic operations on sparc64 built by SunPro C
Igor Sysoev <igor@sysoev.ru>
parents:
611
diff
changeset
|
44 res = NGX_CASA(res, old, value); |
| 561 | 45 |
| 46 if (res == old) { | |
| 47 return res; | |
| 48 } | |
| 49 | |
| 50 old = res; | |
| 51 } | |
| 52 } | |
| 563 | 53 |
| 54 | |
| 55 #define ngx_memory_barrier() \ | |
| 56 __asm (".volatile"); \ | |
| 57 __asm ("membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad"); \ | |
| 58 __asm (".nonvolatile") | |
| 611 | 59 |
| 60 #define ngx_cpu_pause() |