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.

/
/ Copyright (C) Igor Sysoev
/

/ ngx_atomic_uint_t ngx_atomic_cmp_set(ngx_atomic_t *lock,
/     ngx_atomic_uint_t old, ngx_atomic_uint_t set);
/
/ the arguments are passed in %rdi, %rsi, %rdx
/ the result is returned in the %rax

        .inline ngx_atomic_cmp_set,0
        movq      %rsi, %rax
        lock
        cmpxchgq  %rdx, (%rdi)
        setz      %al
        movzbq    %al, %rax
        .end


/ ngx_atomic_int_t ngx_atomic_fetch_add(ngx_atomic_t *value,
/     ngx_atomic_int_t add);
/
/ the arguments are passed in %rdi, %rsi
/ the result is returned in the %rax

        .inline ngx_atomic_fetch_add,0
        movq      %rsi, %rax
        lock
        xaddq     %rax, (%rdi)
        .end