Mercurial > hg > nginx-ranges
annotate src/core/ngx_spinlock.c @ 520:24b676623d4f NGINX_0_8_7
nginx 0.8.7
*) Change: minimum supported OpenSSL version is 0.9.7.
*) Change: the "ask" parameter of the "ssl_verify_client" directive was
changed to the "optional" parameter and now it checks a client
certificate if it was offered.
Thanks to Brice Figureau.
*) Feature: the $ssl_client_verify variable.
Thanks to Brice Figureau.
*) Feature: the "ssl_crl" directive.
Thanks to Brice Figureau.
*) Feature: the "proxy" parameter of the "geo" directive.
*) Feature: the "image_filter" directive supports variables for setting
size.
*) Bugfix: the $ssl_client_cert variable usage corrupted memory; the
bug had appeared in 0.7.7.
Thanks to Sergey Zhuravlev.
*) Bugfix: "proxy_pass_header" and "fastcgi_pass_header" directives did
not pass to a client the "X-Accel-Redirect", "X-Accel-Limit-Rate",
"X-Accel-Buffering", and "X-Accel-Charset" lines from backend
response header.
Thanks to Maxim Dounin.
*) Bugfix: in handling "Last-Modified" and "Accept-Ranges" backend
response header lines; the bug had appeared in 0.7.44.
Thanks to Maxim Dounin.
*) Bugfix: the "[alert] zero size buf" error if subrequest returns an
empty response; the bug had appeared in 0.8.5.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 27 Jul 2009 00:00:00 +0400 |
parents | 73e8476f9142 |
children |
rev | line source |
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0 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 | |
10 | |
112 | 11 void |
160 | 12 ngx_spinlock(ngx_atomic_t *lock, ngx_atomic_int_t value, ngx_uint_t spin) |
0 | 13 { |
14 | |
15 #if (NGX_HAVE_ATOMIC_OPS) | |
16 | |
160 | 17 ngx_uint_t i, n; |
0 | 18 |
19 for ( ;; ) { | |
20 | |
160 | 21 if (*lock == 0 && ngx_atomic_cmp_set(lock, 0, value)) { |
22 return; | |
23 } | |
24 | |
25 if (ngx_ncpu > 1) { | |
26 | |
27 for (n = 1; n < spin; n <<= 1) { | |
0 | 28 |
160 | 29 for (i = 0; i < n; i++) { |
30 ngx_cpu_pause(); | |
31 } | |
0 | 32 |
160 | 33 if (*lock == 0 && ngx_atomic_cmp_set(lock, 0, value)) { |
34 return; | |
35 } | |
0 | 36 } |
37 } | |
160 | 38 |
39 ngx_sched_yield(); | |
0 | 40 } |
41 | |
42 #else | |
43 | |
44 #if (NGX_THREADS) | |
45 | |
46 #error ngx_spinlock() or ngx_atomic_cmp_set() are not defined ! | |
47 | |
48 #endif | |
49 | |
50 #endif | |
51 | |
52 } |