Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_sunpro_atomic_sparc64.h @ 7448:7f035fd1ec7b
Fixed portability issues with union sigval.
AIO support in nginx was originally developed against FreeBSD versions 4-6,
where the sival_ptr field was named as sigval_ptr (seemingly by mistake[1]),
which made nginx use the only name available then. The standard-complaint
name was restored in 2005 (first appeared in FreeBSD 7.0, 2008), retaining
compatibility with previous versions[2][3]. In DragonFly, similar changes
were committed in 2009[4], with backward compatibility recently removed[5].
The change switches to the standard name, retaining compatibility with old
FreeBSD versions.
[1] https://svnweb.freebsd.org/changeset/base/48621
[2] https://svnweb.freebsd.org/changeset/base/152029
[3] https://svnweb.freebsd.org/changeset/base/174003
[4] https://gitweb.dragonflybsd.org/dragonfly.git/commit/3693401
[5] https://gitweb.dragonflybsd.org/dragonfly.git/commit/7875042
| author | Sergey Kandaurov <pluknet@nginx.com> |
|---|---|
| date | Mon, 28 Jan 2019 14:33:31 +0000 |
| parents | d620f497c50f |
| children |
| rev | line source |
|---|---|
| 561 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
| 561 | 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 { | |
|
1186
c114defa4518
fix atomic operations on sparc64 built by SunPro C
Igor Sysoev <igor@sysoev.ru>
parents:
611
diff
changeset
|
28 set = NGX_CASA(set, old, lock); |
| 561 | 29 |
| 30 return (set == old); | |
| 577 | 31 } |
| 561 | 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 | |
|
1186
c114defa4518
fix atomic operations on sparc64 built by SunPro C
Igor Sysoev <igor@sysoev.ru>
parents:
611
diff
changeset
|
45 res = NGX_CASA(res, old, value); |
| 561 | 46 |
| 47 if (res == old) { | |
| 48 return res; | |
| 49 } | |
| 50 | |
| 51 old = res; | |
| 52 } | |
| 53 } | |
| 563 | 54 |
| 55 | |
| 56 #define ngx_memory_barrier() \ | |
| 57 __asm (".volatile"); \ | |
| 58 __asm ("membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad"); \ | |
| 59 __asm (".nonvolatile") | |
| 611 | 60 |
| 61 #define ngx_cpu_pause() |