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SSL: fixed c->read->ready handling in ngx_ssl_recv(). If c->read->ready was reset, but later some data were read from a socket buffer due to a call to ngx_ssl_recv(), the c->read->ready flag should be restored if not all data were read from OpenSSL buffers (as kernel won't notify us about the data anymore). More details are available here: http://mailman.nginx.org/pipermail/nginx/2013-November/041178.html
author Maxim Dounin <mdounin@mdounin.ru>
date Fri, 29 Nov 2013 17:16:06 +0400
parents d620f497c50f
children 2cd019520210
line wrap: on
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/
/ Copyright (C) Igor Sysoev
/ Copyright (C) Nginx, Inc.
/

/ 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


/ ngx_cpu_pause()
/
/ the "rep; nop" is used instead of "pause" to avoid the "[ PAUSE ]" hardware
/ capability added by linker because Solaris/amd64 does not know about it:
/
/ ld.so.1: nginx: fatal: hardware capability unsupported: 0x2000 [ PAUSE ]

       .inline ngx_cpu_pause,0
       rep; nop
       .end