84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
/*
|
|
* include/common/splice.h
|
|
* Splice definition for older Linux libc.
|
|
*
|
|
* Copyright 2000-2011 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_SPLICE_H
|
|
#define _COMMON_SPLICE_H
|
|
|
|
#if defined (__linux__) && defined(CONFIG_HAP_LINUX_SPLICE)
|
|
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <sys/syscall.h>
|
|
#include <common/syscall.h>
|
|
|
|
/* On recent Linux kernels, the splice() syscall may be used for faster data copy.
|
|
* But it's not always defined on some OS versions, and it even happens that some
|
|
* definitions are wrong with some glibc due to an offset bug in syscall().
|
|
*/
|
|
|
|
#ifndef SPLICE_F_MOVE
|
|
#define SPLICE_F_MOVE 0x1
|
|
#endif
|
|
|
|
#ifndef SPLICE_F_NONBLOCK
|
|
#define SPLICE_F_NONBLOCK 0x2
|
|
#endif
|
|
|
|
#ifndef SPLICE_F_MORE
|
|
#define SPLICE_F_MORE 0x4
|
|
#endif
|
|
|
|
#if defined(USE_MY_SPLICE)
|
|
|
|
#if defined(CONFIG_HAP_LINUX_VSYSCALL) && defined(__linux__) && defined(__i386__)
|
|
/* The syscall is redefined somewhere else */
|
|
extern int splice(int fdin, loff_t *off_in, int fdout, loff_t *off_out, size_t len, unsigned long flags);
|
|
#else
|
|
|
|
/* We'll define a syscall, so for this we need __NR_splice. It should have
|
|
* been provided by syscall.h.
|
|
*/
|
|
#ifndef __NR_splice
|
|
#warning unsupported architecture, guessing __NR_splice=313 like x86...
|
|
#define __NR_splice 313
|
|
#endif /* __NR_splice */
|
|
|
|
static _syscall6(int, splice, int, fdin, loff_t *, off_in, int, fdout, loff_t *, off_out, size_t, len, unsigned long, flags);
|
|
#endif /* VSYSCALL */
|
|
|
|
#else
|
|
/* use the system's definition */
|
|
#include <fcntl.h>
|
|
|
|
#endif /* USE_MY_SPLICE */
|
|
|
|
#endif /* __linux__ && CONFIG_HAP_LINUX_SPLICE */
|
|
|
|
#endif /* _COMMON_SPLICE_H */
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-indent-level: 8
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|