Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_sunpro_atomic_sparc64.h @ 4448:539355d9e675 stable-1.0
Merge of r4404:
Fixed sched_setaffinity(2) to correctly pass size.
Second argument (cpusetsize) is size in bytes, not in bits. Previously
used constant 32 resulted in reading of uninitialized memory and caused
EINVAL to be returned on some Linux kernels.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Sun, 05 Feb 2012 19:25:24 +0000 |
| parents | c114defa4518 |
| 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() |