Mercurial > hg > nginx
annotate src/os/unix/ngx_sunpro_atomic_sparc64.h @ 6791:cb4a4e9bba8e
Perl: fixed optimization in SSI command handler.
As the pointer to the first argument was tested instead of the argument
itself, array of arguments was always created, even if there were no
arguments. Fix is to test args[0] instead of args.
Found by Coverity (CID 1356862).
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 01 Nov 2016 20:39:21 +0300 |
parents | d620f497c50f |
children |
rev | line source |
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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() |