Mercurial > hg > nginx
view src/os/unix/ngx_sunpro_amd64.il @ 4665:25611746fee7 stable-1.2
Merge of r4619: accept moderation on EMFILE/ENFILE.
In case of EMFILE/ENFILE returned from accept() we disable accept events,
and (in case of no accept mutex used) arm timer to re-enable them later.
With accept mutex we just drop it, and rely on normal accept mutex handling
to re-enable accept events once it's acquired again.
As we now handle errors in question, logging level was changed to "crit"
(instead of "alert" used for unknown errors).
Note: the code might call ngx_enable_accept_events() multiple times if
there are many listen sockets. The ngx_enable_accept_events() function was
modified to check if connection is already active (via c->read->active) and
skip it then, thus making multiple calls safe.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 04 Jun 2012 11:10:36 +0000 |
parents | d620f497c50f |
children | 2cd019520210 |
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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