annotate src/os/unix/ngx_sunpro_atomic_sparc64.h @ 613:c73c5c58c619 release-0.3.28

nginx-0.3.28-RELEASE import *) Feature: the "restrict_host_names" directive was canceled. *) Feature: the --with-cpu-opt=ppc64 configuration parameter. *) Bugfix: on some condition the proxied connection with a client was terminated prematurely. Thanks to Vladimir Shutoff. *) Bugfix: the "X-Accel-Limit-Rate" header line was not taken into account if the request was redirected using the "X-Accel-Redirect" header line. *) Bugfix: the "post_action" directive ran only after a successful completion of a request. *) Bugfix: the proxied response body generated by the "post_action" directive was transferred to a client.
author Igor Sysoev <igor@sysoev.ru>
date Thu, 16 Feb 2006 15:26:46 +0000
parents 3f8a2132b93d
children c114defa4518
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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7 #if (NGX_PTR_SIZE == 4)
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8 #define NGX_CASA ngx_casa
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9 #else
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10 #define NGX_CASA ngx_casxa
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11 #endif
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14 ngx_atomic_uint_t
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15 ngx_casa(ngx_atomic_uint_t set, ngx_atomic_uint_t old, ngx_atomic_t *lock);
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17 ngx_atomic_uint_t
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18 ngx_casxa(ngx_atomic_uint_t set, ngx_atomic_uint_t old, ngx_atomic_t *lock);
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20 /* the code in src/os/unix/ngx_sunpro_sparc64.il */
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23 static ngx_inline ngx_atomic_uint_t
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24 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
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25 ngx_atomic_uint_t set)
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26 {
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27 NGX_CASA(set, old, lock);
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29 return (set == old);
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30 }
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33 static ngx_inline ngx_atomic_int_t
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34 ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add)
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35 {
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36 ngx_atomic_uint_t old, res;
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38 old = *value;
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39
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40 for ( ;; ) {
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42 res = old + add;
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44 NGX_CASA(res, old, value);
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46 if (res == old) {
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47 return res;
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48 }
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50 old = res;
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51 }
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52 }
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55 #define ngx_memory_barrier() \
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56 __asm (".volatile"); \
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57 __asm ("membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad"); \
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58 __asm (".nonvolatile")
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60 #define ngx_cpu_pause()