view src/os/unix/ngx_sunpro_atomic_sparc64.h @ 212:56688ed172c8 NGINX_0_3_53

nginx 0.3.53 *) Change: the "add_header" directive adds the string to 204, 301, and 302 responses. *) Feature: the "server" directive in the "upstream" context supports the "weight" parameter. *) Feature: the "server_name" directive supports the "*" wildcard. *) Feature: nginx supports the request body size more than 2G. *) Bugfix: if a client was successfully authorized using "satisfy_any on", then anyway the message "access forbidden by rule" was written in the log. *) Bugfix: the "PUT" method may erroneously not create a file and return the 409 code. *) Bugfix: if the IMAP/POP3 backend returned an error, then nginx continued proxying anyway.
author Igor Sysoev <http://sysoev.ru>
date Fri, 07 Jul 2006 00:00:00 +0400
parents 73e8476f9142
children cba14c1e2a4b
line wrap: on
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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)
{
    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()