mirror of
http://git.haproxy.org/git/haproxy.git/
synced 2025-01-23 22:12:46 +00:00
6db06d3870
send() supports the MSG_MORE flag on Linux, which does the same as TCP_CORK except that we don't have to remove TCP_NODELAY before and we don't need any syscall to set/remove it. This can save up to 4 syscalls around a send() (two for setting it, two for removing it), and it's much cleaner since it is not persistent. So make use of it instead.
115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
/*
|
|
include/common/compat.h
|
|
Operating system compatibility interface.
|
|
|
|
Copyright (C) 2000-2008 Willy Tarreau - w@1wt.eu
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation, version 2.1
|
|
exclusively.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _COMMON_COMPAT_H
|
|
#define _COMMON_COMPAT_H
|
|
|
|
/*
|
|
* Gcc before 3.0 needs [0] to declare a variable-size array
|
|
*/
|
|
#if __GNUC__ < 3
|
|
#define VAR_ARRAY 0
|
|
#else
|
|
#define VAR_ARRAY
|
|
#endif
|
|
|
|
/* This is needed on Linux for Netfilter includes */
|
|
#include <sys/socket.h>
|
|
#include <sys/types.h>
|
|
#include <common/config.h>
|
|
#include <common/standard.h>
|
|
|
|
#ifndef BITS_PER_INT
|
|
#define BITS_PER_INT (8*sizeof(int))
|
|
#endif
|
|
|
|
/* this is for libc5 for example */
|
|
#ifndef TCP_NODELAY
|
|
#define TCP_NODELAY 1
|
|
#endif
|
|
|
|
#ifndef SHUT_RD
|
|
#define SHUT_RD 0
|
|
#endif
|
|
|
|
#ifndef SHUT_WR
|
|
#define SHUT_WR 1
|
|
#endif
|
|
|
|
/* only Linux defines it */
|
|
#ifndef MSG_NOSIGNAL
|
|
#define MSG_NOSIGNAL 0
|
|
#endif
|
|
|
|
/* AIX does not define MSG_DONTWAIT. We'll define it to zero, and test it
|
|
* wherever appropriate.
|
|
*/
|
|
#ifndef MSG_DONTWAIT
|
|
#define MSG_DONTWAIT 0
|
|
#endif
|
|
|
|
/* Only Linux defines MSG_MORE */
|
|
#ifndef MSG_MORE
|
|
#define MSG_MORE 0
|
|
#endif
|
|
|
|
#if defined(TPROXY) && defined(NETFILTER)
|
|
#include <linux/types.h>
|
|
#include <linux/netfilter_ipv6.h>
|
|
#include <linux/netfilter_ipv4.h>
|
|
#endif
|
|
|
|
/* On Linux, IP_TRANSPARENT and/or IP_FREEBIND generally require a kernel patch */
|
|
#if defined(CONFIG_HAP_LINUX_TPROXY)
|
|
#if !defined(IP_FREEBIND)
|
|
#define IP_FREEBIND 15
|
|
#endif /* !IP_FREEBIND */
|
|
#if !defined(IP_TRANSPARENT)
|
|
#define IP_TRANSPARENT 19
|
|
#endif /* !IP_TRANSPARENT */
|
|
#endif /* CONFIG_HAP_LINUX_TPROXY */
|
|
|
|
/* We'll try to enable SO_REUSEPORT on Linux 2.4 and 2.6 if not defined.
|
|
* There are two families of values depending on the architecture. Those
|
|
* are at least valid on Linux 2.4 and 2.6, reason why we'll rely on the
|
|
* NETFILTER define.
|
|
*/
|
|
#if !defined(SO_REUSEPORT) && defined(NETFILTER)
|
|
#if (SO_REUSEADDR == 2)
|
|
#define SO_REUSEPORT 15
|
|
#elif (SO_REUSEADDR == 0x0004)
|
|
#define SO_REUSEPORT 0x0200
|
|
#endif /* SO_REUSEADDR */
|
|
#endif /* SO_REUSEPORT */
|
|
|
|
#if defined(__dietlibc__)
|
|
#include <strings.h>
|
|
#endif
|
|
|
|
#endif /* _COMMON_COMPAT_H */
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-indent-level: 8
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|