annotate src/os/unix/ngx_gcc_atomic_sparc64.h @ 644:ad25218fd14b NGINX_1_0_12

nginx 1.0.12 *) Feature: the "TLSv1.1" and "TLSv1.2" parameters of the "ssl_protocols" directive. *) Feature: the "if" SSI command supports captures in regular expressions. *) Bugfix: the "if" SSI command did not work inside the "block" command. *) Bugfix: in AIO error handling on FreeBSD. *) Bugfix: in the OpenSSL library initialization. *) Bugfix: the "worker_cpu_affinity" directive might not work. *) Bugfix: the "limit_conn_log_level" and "limit_req_log_level" directives might not work. *) Bugfix: the "read_ahead" directive might not work combined with "try_files" and "open_file_cache". *) Bugfix: the "proxy_cache_use_stale" directive with "error" parameter did not return answer from cache if there were no live upstreams. *) Bugfix: a segmentation fault might occur in a worker process if small time was used in the "inactive" parameter of the "proxy_cache_path" directive. *) Bugfix: responses from cache might hang. *) Bugfix: in error handling while connecting to a backend. Thanks to Piotr Sikora. *) Bugfix: in the "epoll" event method. Thanks to Yichun Zhang. *) Bugfix: the $sent_http_cache_control variable might contain a wrong value if the "expires" directive was used. Thanks to Yichun Zhang. *) Bugfix: the "limit_rate" directive did not allow to use full throughput, even if limit value was very high. *) Bugfix: the "sendfile_max_chunk" directive did not work, if the "limit_rate" directive was used. *) Bugfix: nginx could not be built on Solaris; the bug had appeared in 1.0.11. *) Bugfix: in the ngx_http_scgi_module. *) Bugfix: in the ngx_http_mp4_module.
author Igor Sysoev <http://sysoev.ru>
date Mon, 06 Feb 2012 00:00:00 +0400
parents 73e8476f9142
children
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dad2fe8ecf08 nginx 0.3.2
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2 /*
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3 * Copyright (C) Igor Sysoev
644
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4 * Copyright (C) Nginx, Inc.
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dad2fe8ecf08 nginx 0.3.2
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5 */
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dad2fe8ecf08 nginx 0.3.2
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8 /*
dad2fe8ecf08 nginx 0.3.2
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9 * "casa [r1] 0x80, r2, r0" and
dad2fe8ecf08 nginx 0.3.2
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10 * "casxa [r1] 0x80, r2, r0" do the following:
dad2fe8ecf08 nginx 0.3.2
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11 *
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12 * if ([r1] == r2) {
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13 * swap(r0, [r1]);
dad2fe8ecf08 nginx 0.3.2
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14 * } else {
dad2fe8ecf08 nginx 0.3.2
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15 * r0 = [r1];
dad2fe8ecf08 nginx 0.3.2
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16 * }
dad2fe8ecf08 nginx 0.3.2
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17 *
dad2fe8ecf08 nginx 0.3.2
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18 * so "r0 == r2" means that the operation was successfull.
dad2fe8ecf08 nginx 0.3.2
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19 *
dad2fe8ecf08 nginx 0.3.2
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20 *
dad2fe8ecf08 nginx 0.3.2
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21 * The "r" means the general register.
dad2fe8ecf08 nginx 0.3.2
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22 * The "+r" means the general register used for both input and output.
dad2fe8ecf08 nginx 0.3.2
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23 */
dad2fe8ecf08 nginx 0.3.2
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dad2fe8ecf08 nginx 0.3.2
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dad2fe8ecf08 nginx 0.3.2
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26 #if (NGX_PTR_SIZE == 4)
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27 #define NGX_CASA "casa"
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28 #else
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29 #define NGX_CASA "casxa"
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30 #endif
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dad2fe8ecf08 nginx 0.3.2
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dad2fe8ecf08 nginx 0.3.2
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33 static ngx_inline ngx_atomic_uint_t
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34 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
dad2fe8ecf08 nginx 0.3.2
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35 ngx_atomic_uint_t set)
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36 {
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37 __asm__ volatile (
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38
dad2fe8ecf08 nginx 0.3.2
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39 NGX_CASA " [%1] 0x80, %2, %0"
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dad2fe8ecf08 nginx 0.3.2
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41 : "+r" (set) : "r" (lock), "r" (old) : "memory");
dad2fe8ecf08 nginx 0.3.2
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43 return (set == old);
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44 }
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dad2fe8ecf08 nginx 0.3.2
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dad2fe8ecf08 nginx 0.3.2
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47 static ngx_inline ngx_atomic_int_t
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48 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add)
dad2fe8ecf08 nginx 0.3.2
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49 {
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50 ngx_atomic_uint_t old, res;
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51
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52 old = *value;
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53
dad2fe8ecf08 nginx 0.3.2
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54 for ( ;; ) {
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dad2fe8ecf08 nginx 0.3.2
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56 res = old + add;
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dad2fe8ecf08 nginx 0.3.2
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58 __asm__ volatile (
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dad2fe8ecf08 nginx 0.3.2
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60 NGX_CASA " [%1] 0x80, %2, %0"
dad2fe8ecf08 nginx 0.3.2
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62 : "+r" (res) : "r" (value), "r" (old) : "memory");
dad2fe8ecf08 nginx 0.3.2
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64 if (res == old) {
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65 return res;
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66 }
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68 old = res;
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69 }
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70 }
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408f195b3482 nginx 0.3.3
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408f195b3482 nginx 0.3.3
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73 #if (NGX_SMP)
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74 #define ngx_memory_barrier() \
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75 __asm__ volatile ( \
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76 "membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad" \
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77 ::: "memory")
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78 #else
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79 #define ngx_memory_barrier() __asm__ volatile ("" ::: "memory")
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80 #endif
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82 #define ngx_cpu_pause()