view src/os/unix/ngx_sunpro_atomic_sparc64.h @ 216:fa32d59d9a15 NGINX_0_3_55

nginx 0.3.55 *) Feature: the "stub" parameter in the "include" SSI command. *) Feature: the "block" SSI command. *) Feature: the unicode2nginx script was added to contrib. *) Bugfix: if a "root" was specified by variable only, then the root was relative to a server prefix. *) Bugfix: if the request contained "//" or "/./" and escaped symbols after them, then the proxied request was sent unescaped. *) Bugfix: the $r->headers_in("Cookie") of the ngx_http_perl_module now returns all "Cookie" header lines. *) Bugfix: a segmentation fault occurred if "client_body_in_file_only on" was used and nginx switched to a next upstream. *) Bugfix: on some condition while reconfiguration character codes inside the "charset_map" may be treated invalid; bug appeared in 0.3.50.
author Igor Sysoev <http://sysoev.ru>
date Fri, 28 Jul 2006 00:00:00 +0400
parents 73e8476f9142
children cba14c1e2a4b
line wrap: on
line source


/*
 * 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)
{
    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;

        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()