view src/os/unix/ngx_socket.h @ 4340:4533d7684e14

Cache: only complain on long locked entries. There have been multiple reports of cases where a real locked entry was removed, resulting in a segmentation fault later in a worker which locked the entry. It looks like default inactive timeout isn't enough in real life. For now just ignore such locked entries, and move them to the top of the inactive queue to allow processing of other entries.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 12 Dec 2011 10:49:14 +0000
parents 4946078f0a79
children d620f497c50f
line wrap: on
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/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_SOCKET_H_INCLUDED_
#define _NGX_SOCKET_H_INCLUDED_


#include <ngx_config.h>


#define NGX_WRITE_SHUTDOWN SHUT_WR

typedef int  ngx_socket_t;

#define ngx_socket          socket
#define ngx_socket_n        "socket()"


#if (NGX_HAVE_FIONBIO)

int ngx_nonblocking(ngx_socket_t s);
int ngx_blocking(ngx_socket_t s);

#define ngx_nonblocking_n   "ioctl(FIONBIO)"
#define ngx_blocking_n      "ioctl(!FIONBIO)"

#else

#define ngx_nonblocking(s)  fcntl(s, F_SETFL, fcntl(s, F_GETFL) | O_NONBLOCK)
#define ngx_nonblocking_n   "fcntl(O_NONBLOCK)"

#define ngx_blocking(s)     fcntl(s, F_SETFL, fcntl(s, F_GETFL) & ~O_NONBLOCK)
#define ngx_blocking_n      "fcntl(!O_NONBLOCK)"

#endif

int ngx_tcp_nopush(ngx_socket_t s);
int ngx_tcp_push(ngx_socket_t s);

#if (NGX_LINUX)

#define ngx_tcp_nopush_n   "setsockopt(TCP_CORK)"
#define ngx_tcp_push_n     "setsockopt(!TCP_CORK)"

#else

#define ngx_tcp_nopush_n   "setsockopt(TCP_NOPUSH)"
#define ngx_tcp_push_n     "setsockopt(!TCP_NOPUSH)"

#endif


#define ngx_shutdown_socket    shutdown
#define ngx_shutdown_socket_n  "shutdown()"

#define ngx_close_socket    close
#define ngx_close_socket_n  "close() socket"


#endif /* _NGX_SOCKET_H_INCLUDED_ */