annotate src/os/unix/ngx_gcc_atomic_sparc64.h @ 356:b743d290eb3b NGINX_0_6_22

nginx 0.6.22 *) Change: now all ngx_http_perl_module methods return values copied to perl's allocated memory. *) Bugfix: if nginx was built with ngx_http_perl_module, the perl before 5.8.6 was used, and perl supported threads, then during reconfiguration the master process aborted; bug appeared in 0.5.9. Thanks to Boris Zhmurov. *) Bugfix: the ngx_http_perl_module methods may get invalid values of the regex captures. *) Bugfix: a segmentation fault occurred in worker process, if the $r->has_request_body() method was called for a request whose small request body was already received. *) Bugfix: large_client_header_buffers did not freed before going to keep-alive state. Thanks to Olexander Shtepa. *) Bugfix: the last address was missed in the $upstream_addr variable; bug appeared in 0.6.18. *) Bugfix: the "fastcgi_catch_stderr" directive did return error code; now it returns 502 code, that can be rerouted to a next server using the "fastcgi_next_upstream invalid_header" directive. *) Bugfix: a segmentation fault occurred in master process if the "fastcgi_catch_stderr" directive was used; bug appeared in 0.6.10. Thanks to Manlio Perillo.
author Igor Sysoev <http://sysoev.ru>
date Wed, 19 Dec 2007 00:00:00 +0300
parents 73e8476f9142
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
110
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
1
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
2 /*
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
3 * Copyright (C) Igor Sysoev
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
4 */
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
5
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
6
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
7 /*
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
8 * "casa [r1] 0x80, r2, r0" and
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
9 * "casxa [r1] 0x80, r2, r0" do the following:
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
10 *
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
11 * if ([r1] == r2) {
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
12 * swap(r0, [r1]);
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
13 * } else {
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
14 * r0 = [r1];
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
15 * }
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
16 *
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
17 * so "r0 == r2" means that the operation was successfull.
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
18 *
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
19 *
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
20 * The "r" means the general register.
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
21 * The "+r" means the general register used for both input and output.
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
22 */
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
23
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
24
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
25 #if (NGX_PTR_SIZE == 4)
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
26 #define NGX_CASA "casa"
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
27 #else
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
28 #define NGX_CASA "casxa"
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
29 #endif
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
30
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
31
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
32 static ngx_inline ngx_atomic_uint_t
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
33 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
34 ngx_atomic_uint_t set)
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
35 {
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
36 __asm__ volatile (
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
37
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
38 NGX_CASA " [%1] 0x80, %2, %0"
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
39
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
40 : "+r" (set) : "r" (lock), "r" (old) : "memory");
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
41
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
42 return (set == old);
126
df17fbafec8f nginx 0.3.10
Igor Sysoev <http://sysoev.ru>
parents: 112
diff changeset
43 }
110
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
44
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
45
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
46 static ngx_inline ngx_atomic_int_t
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
47 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add)
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
48 {
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
49 ngx_atomic_uint_t old, res;
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
50
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
51 old = *value;
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
52
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
53 for ( ;; ) {
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
54
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
55 res = old + add;
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
56
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
57 __asm__ volatile (
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
58
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
59 NGX_CASA " [%1] 0x80, %2, %0"
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
60
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
61 : "+r" (res) : "r" (value), "r" (old) : "memory");
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
62
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
63 if (res == old) {
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
64 return res;
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
65 }
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
66
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
67 old = res;
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
68 }
dad2fe8ecf08 nginx 0.3.2
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
69 }
112
408f195b3482 nginx 0.3.3
Igor Sysoev <http://sysoev.ru>
parents: 110
diff changeset
70
408f195b3482 nginx 0.3.3
Igor Sysoev <http://sysoev.ru>
parents: 110
diff changeset
71
408f195b3482 nginx 0.3.3
Igor Sysoev <http://sysoev.ru>
parents: 110
diff changeset
72 #if (NGX_SMP)
408f195b3482 nginx 0.3.3
Igor Sysoev <http://sysoev.ru>
parents: 110
diff changeset
73 #define ngx_memory_barrier() \
408f195b3482 nginx 0.3.3
Igor Sysoev <http://sysoev.ru>
parents: 110
diff changeset
74 __asm__ volatile ( \
408f195b3482 nginx 0.3.3
Igor Sysoev <http://sysoev.ru>
parents: 110
diff changeset
75 "membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad" \
408f195b3482 nginx 0.3.3
Igor Sysoev <http://sysoev.ru>
parents: 110
diff changeset
76 ::: "memory")
408f195b3482 nginx 0.3.3
Igor Sysoev <http://sysoev.ru>
parents: 110
diff changeset
77 #else
408f195b3482 nginx 0.3.3
Igor Sysoev <http://sysoev.ru>
parents: 110
diff changeset
78 #define ngx_memory_barrier() __asm__ volatile ("" ::: "memory")
408f195b3482 nginx 0.3.3
Igor Sysoev <http://sysoev.ru>
parents: 110
diff changeset
79 #endif
160
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents: 126
diff changeset
80
73e8476f9142 nginx 0.3.27
Igor Sysoev <http://sysoev.ru>
parents: 126
diff changeset
81 #define ngx_cpu_pause()