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view src/os/unix/ngx_sunpro_atomic_sparc64.h @ 394:05981f639d21 NGINX_0_7_9

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nginx 0.7.9 *) Change: now ngx_http_charset_module works by default with following MIME types: text/html, text/css, text/xml, text/plain, text/vnd.wap.wml, application/x-javascript, and application/rss+xml. *) Feature: the "charset_types" and "addition_types" directives. *) Feature: now the "gzip_types", "ssi_types", and "sub_filter_types" directives use hash. *) Feature: the ngx_cpp_test_module. *) Feature: the "expires" directive supports daily time. *) Feature: the ngx_http_xslt_module improvements and bug fixing. Thanks to Denis F. Latypoff and Maxim Dounin. *) Bugfix: the "log_not_found" directive did not work for index files tests. *) Bugfix: HTTPS connections might hang, if kqueue, epoll, rtsig, or eventport methods were used; the bug had appeared in 0.7.7. *) Bugfix: if the "server_name", "valid_referers", and "map" directives used an "*.domain.tld" wildcard and exact name "domain.tld" was not set, then the exact name was matched by the wildcard; the bugs had appeared in 0.3.18.
author Igor Sysoev <http://sysoev.ru>
date Tue, 12 Aug 2008 00:00:00 +0400
parents cba14c1e2a4b
children
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/*
 * Copyright (C) Igor Sysoev
 */


#if (NGX_PTR_SIZE == 4)
#define NGX_CASA  ngx_casa
#else
#define NGX_CASA  ngx_casxa
#endif


ngx_atomic_uint_t
ngx_casa(ngx_atomic_uint_t set, ngx_atomic_uint_t old, ngx_atomic_t *lock);

ngx_atomic_uint_t
ngx_casxa(ngx_atomic_uint_t set, ngx_atomic_uint_t old, ngx_atomic_t *lock);

/* the code in src/os/unix/ngx_sunpro_sparc64.il */


static ngx_inline ngx_atomic_uint_t
ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
    ngx_atomic_uint_t set)
{
    set = NGX_CASA(set, old, lock);

    return (set == old);
}


static ngx_inline ngx_atomic_int_t
ngx_atomic_fetch_add(ngx_atomic_t *value, ngx_atomic_int_t add)
{
    ngx_atomic_uint_t  old, res;

    old = *value;

    for ( ;; ) {

        res = old + add;

        res = NGX_CASA(res, old, value);

        if (res == old) {
            return res;
        }

        old = res;
    }
}


#define ngx_memory_barrier()                                                  \
        __asm (".volatile");                                                  \
        __asm ("membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad");   \
        __asm (".nonvolatile")

#define ngx_cpu_pause()