Mercurial > hg > nginx
view src/os/unix/ngx_errno.h @ 4618:c05cfc46b3bc
Accept moderation in case of 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 | Fri, 11 May 2012 13:33:06 +0000 |
parents | 0b05acc045eb |
children | f1a0de6eb505 |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_ERRNO_H_INCLUDED_ #define _NGX_ERRNO_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> typedef int ngx_err_t; #define NGX_EPERM EPERM #define NGX_ENOENT ENOENT #define NGX_ENOPATH ENOENT #define NGX_ESRCH ESRCH #define NGX_EINTR EINTR #define NGX_ECHILD ECHILD #define NGX_ENOMEM ENOMEM #define NGX_EACCES EACCES #define NGX_EBUSY EBUSY #define NGX_EEXIST EEXIST #define NGX_EXDEV EXDEV #define NGX_ENOTDIR ENOTDIR #define NGX_EISDIR EISDIR #define NGX_EINVAL EINVAL #define NGX_ENFILE ENFILE #define NGX_EMFILE EMFILE #define NGX_ENOSPC ENOSPC #define NGX_EPIPE EPIPE #define NGX_EINPROGRESS EINPROGRESS #define NGX_EADDRINUSE EADDRINUSE #define NGX_ECONNABORTED ECONNABORTED #define NGX_ECONNRESET ECONNRESET #define NGX_ENOTCONN ENOTCONN #define NGX_ETIMEDOUT ETIMEDOUT #define NGX_ECONNREFUSED ECONNREFUSED #define NGX_ENAMETOOLONG ENAMETOOLONG #define NGX_ENETDOWN ENETDOWN #define NGX_ENETUNREACH ENETUNREACH #define NGX_EHOSTDOWN EHOSTDOWN #define NGX_EHOSTUNREACH EHOSTUNREACH #define NGX_ENOSYS ENOSYS #define NGX_ECANCELED ECANCELED #define NGX_EILSEQ EILSEQ #define NGX_ENOMOREFILES 0 #if (NGX_HAVE_OPENAT) #define NGX_EMLINK EMLINK #define NGX_ELOOP ELOOP #endif #if (__hpux__) #define NGX_EAGAIN EWOULDBLOCK #else #define NGX_EAGAIN EAGAIN #endif #define ngx_errno errno #define ngx_socket_errno errno #define ngx_set_errno(err) errno = err #define ngx_set_socket_errno(err) errno = err u_char *ngx_strerror(ngx_err_t err, u_char *errstr, size_t size); ngx_uint_t ngx_strerror_init(void); #endif /* _NGX_ERRNO_H_INCLUDED_ */