annotate src/os/unix/ngx_gcc_atomic_sparc64.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 73e8476f9142
children
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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7 /*
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8 * "casa [r1] 0x80, r2, r0" and
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9 * "casxa [r1] 0x80, r2, r0" do the following:
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10 *
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11 * if ([r1] == r2) {
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12 * swap(r0, [r1]);
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13 * } else {
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14 * r0 = [r1];
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15 * }
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16 *
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17 * so "r0 == r2" means that the operation was successfull.
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18 *
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19 *
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20 * The "r" means the general register.
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21 * The "+r" means the general register used for both input and output.
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22 */
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23
dad2fe8ecf08 nginx 0.3.2
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dad2fe8ecf08 nginx 0.3.2
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25 #if (NGX_PTR_SIZE == 4)
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26 #define NGX_CASA "casa"
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27 #else
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28 #define NGX_CASA "casxa"
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29 #endif
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30
dad2fe8ecf08 nginx 0.3.2
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dad2fe8ecf08 nginx 0.3.2
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32 static ngx_inline ngx_atomic_uint_t
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33 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
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34 ngx_atomic_uint_t set)
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35 {
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36 __asm__ volatile (
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37
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38 NGX_CASA " [%1] 0x80, %2, %0"
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39
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40 : "+r" (set) : "r" (lock), "r" (old) : "memory");
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41
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42 return (set == old);
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43 }
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dad2fe8ecf08 nginx 0.3.2
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46 static ngx_inline ngx_atomic_int_t
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47 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add)
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48 {
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49 ngx_atomic_uint_t old, res;
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50
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51 old = *value;
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52
dad2fe8ecf08 nginx 0.3.2
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53 for ( ;; ) {
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54
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55 res = old + add;
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56
dad2fe8ecf08 nginx 0.3.2
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57 __asm__ volatile (
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58
dad2fe8ecf08 nginx 0.3.2
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59 NGX_CASA " [%1] 0x80, %2, %0"
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60
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61 : "+r" (res) : "r" (value), "r" (old) : "memory");
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63 if (res == old) {
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64 return res;
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65 }
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67 old = res;
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68 }
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69 }
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408f195b3482 nginx 0.3.3
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72 #if (NGX_SMP)
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73 #define ngx_memory_barrier() \
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74 __asm__ volatile ( \
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75 "membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad" \
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76 ::: "memory")
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77 #else
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78 #define ngx_memory_barrier() __asm__ volatile ("" ::: "memory")
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79 #endif
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80
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81 #define ngx_cpu_pause()