nginx 0.7.47 *) Bugfix: nginx could not be built on FreeBSD 6 and early versions; the bug had appeared in 0.7.46. *) Bugfix: nginx could not be built on MacOSX; the bug had appeared in 0.7.46. *) Bugfix: if the "max_size" parameter was set, then the cache manager might purge a whole cache; the bug had appeared in 0.7.46. *) Change: a segmentation fault might occur in worker process, if the "proxy_cache"/"fastcgi_cache" and the "proxy_cache_valid"/ "fastcgi_cache_valid" were set on different levels; the bug had appeared in 0.7.46. *) Bugfix: a segmentation fault might occur in worker process, if a request was redirected to a proxied or FastCGI server via error_page or try_files; the bug had appeared in 0.7.44.

/
/ Copyright (C) Igor Sysoev
/


/  "casa   [%o2] 0x80, %o1, %o0"  and
/  "casxa  [%o2] 0x80, %o1, %o0"  do the following:
/
/       if ([%o2] == %o1) {
/           swap(%o0, [%o2]);
/       } else {
/           %o0 = [%o2];
/       }


/ ngx_atomic_uint_t ngx_casa(ngx_atomic_uint_t set, ngx_atomic_uint_t old,
/      ngx_atomic_t *lock);
/
/ the arguments are passed in the %o0, %o1, %o2
/ the result is returned in the %o0

        .inline ngx_casa,0
        casa    [%o2] 0x80, %o1, %o0
        .end


/ ngx_atomic_uint_t ngx_casxa(ngx_atomic_uint_t set, ngx_atomic_uint_t old,
/      ngx_atomic_t *lock);
/
/ the arguments are passed in the %o0, %o1, %o2
/ the result is returned in the %o0

        .inline ngx_casxa,0
        casxa   [%o2] 0x80, %o1, %o0
        .end