Mercurial > hg > nginx-vendor-0-7
annotate src/os/unix/ngx_gcc_atomic_amd64.h @ 506:b9fdcaf2062b NGINX_0_7_65
nginx 0.7.65
*) Security: now nginx/Windows ignores trailing spaces in URI.
Thanks to Dan Crowley, Core Security Technologies.
*) Security: now nginx/Windows ignores short files names.
Thanks to Dan Crowley, Core Security Technologies.
*) Change: now the "009" status code is written to an access log for
proxied HTTP/0.9 responses.
*) Change: now the default buffer size of the
"large_client_header_buffers" directive is 8K.
Thanks to Andrew Cholakian.
*) Change: now default SSL ciphers are "HIGH:!ADH:!MD5".
*) Change: now SSLv2 protocol is disabled by default.
*) Change: now $host variable value is always low case.
*) Feature: the conf/fastcgi.conf for simple FastCGI configurations.
*) Feature: now URI part is not required a "proxy_pass" directive if
variables are used.
*) Feature: the $ssl_session_id variable.
*) Bugfix: if a proxied or FastCGI request was internally redirected to
another proxied or FastCGI location, then $upstream_response_time
variable may have abnormally large value; the bug had appeared in
0.7.63.
*) Bugfix: if the "expires modified" set date in the past, then a
negative number was set in the "Cache-Control" response header
line.
Thanks to Alex Kapranoff.
*) Bugfix: nginx closed a connection if a cached response had an empty
body.
Thanks to Piotr Sikora.
*) Bugfix: nginx cached a 304 response if there was the "If-None-Match"
header line in a proxied request.
Thanks to Tim Dettrick and David Kostal.
*) Bugfix: nginx did not treat a comma as separator in the
"Cache-Control" backend response header line.
*) Bugfix: cached HTTP/0.9 responses were handled incorrectly.
*) Bugfix: nginx sent gzipped responses to clients those do not support
gzip, if "gzip_static on" and "gzip_vary off"; the bug had appeared
in 0.8.16.
*) Bugfix: nginx always added "Content-Encoding: gzip" response header
line in 304 responses sent by ngx_http_gzip_static_module.
*) Bugfix: the "!-x" operator did not work.
Thanks to Maxim Dounin.
*) Bugfix: a segmentation fault might occur in a worker process, if
limit_rate was used in HTTPS server.
Thanks to Maxim Dounin.
*) Bugfix: a segmentation fault might occur in a worker process while
$limit_rate logging.
Thanks to Maxim Dounin.
*) Bugfix: nginx did not support dates in 2038 year on 32-bit platforms;
*) Bugfix: nginx/Windows tried to delete a temporary file twice if the
file should replace an already existent file.
*) Bugfix: nginx/Windows tried to rename a temporary file twice if the
file should replace an already existent file.
*) Bugfix: nginx/Windows might not create temporary file, a cache file,
or "proxy/fastcgi_store"d file if a worker had no enough access
rights for top level directories.
*) Bugfix: in UTF-8 encoding support by "try_files" directive in
nginx/Windows.
*) Bugfix: UTF-8 encoding usage in the ngx_http_autoindex_module.
Thanks to Maxim Dounin.
*) Bugfix: the ngx_http_autoindex_module did not show the trailing
slash in links to a directory; the bug had appeared in 0.7.15.
*) Bugfix: nginx did not close a log file set by the --error-log-path
configuration option; the bug had appeared in 0.7.53.
*) Bugfix: "addition_types" directive was incorrectly named
"addtion_types".
*) Bugfix: invalid request line in $request variable was written in
access_log only if error_log was set to "info" or "debug" level.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 01 Feb 2010 00:00:00 +0000 |
parents | 052a7b1d40e5 |
children |
rev | line source |
---|---|
110 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #if (NGX_SMP) | |
8 #define NGX_SMP_LOCK "lock;" | |
9 #else | |
10 #define NGX_SMP_LOCK | |
11 #endif | |
12 | |
13 | |
14 /* | |
15 * "cmpxchgq r, [m]": | |
16 * | |
17 * if (rax == [m]) { | |
18 * zf = 1; | |
19 * [m] = r; | |
20 * } else { | |
21 * zf = 0; | |
22 * rax = [m]; | |
23 * } | |
24 * | |
25 * | |
26 * The "r" is any register, %rax (%r0) - %r16. | |
274 | 27 * The "=a" and "a" are the %rax register. |
28 * Although we can return result in any register, we use "a" because it is | |
29 * used in cmpxchgq anyway. The result is actually in %al but not in $rax, | |
30 * however as the code is inlined gcc can test %al as well as %rax. | |
31 * | |
110 | 32 * The "cc" means that flags were changed. |
33 */ | |
34 | |
35 static ngx_inline ngx_atomic_uint_t | |
36 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old, | |
37 ngx_atomic_uint_t set) | |
126 | 38 { |
274 | 39 u_char res; |
110 | 40 |
41 __asm__ volatile ( | |
42 | |
43 NGX_SMP_LOCK | |
44 " cmpxchgq %3, %1; " | |
274 | 45 " sete %0; " |
110 | 46 |
47 : "=a" (res) : "m" (*lock), "a" (old), "r" (set) : "cc", "memory"); | |
48 | |
49 return res; | |
50 } | |
51 | |
52 | |
53 /* | |
54 * "xaddq r, [m]": | |
55 * | |
56 * temp = [m]; | |
57 * [m] += r; | |
58 * r = temp; | |
59 * | |
60 * | |
61 * The "+r" is any register, %rax (%r0) - %r16. | |
62 * The "cc" means that flags were changed. | |
63 */ | |
64 | |
65 static ngx_inline ngx_atomic_int_t | |
66 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add) | |
67 { | |
68 __asm__ volatile ( | |
69 | |
70 NGX_SMP_LOCK | |
71 " xaddq %0, %1; " | |
72 | |
274 | 73 : "+r" (add) : "m" (*value) : "cc", "memory"); |
110 | 74 |
75 return add; | |
76 } | |
112 | 77 |
78 | |
160 | 79 #define ngx_memory_barrier() __asm__ volatile ("" ::: "memory") |
80 | |
81 #define ngx_cpu_pause() __asm__ ("pause") |