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/* readv for FreeBSD.
Copyright (C) 1997-1998, 2000, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C 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; either
version 2.1 of the License, or (at your option) any later version.
The GNU C 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 the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <stddef.h>
#include <sys/param.h>
#include <sys/uio.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <sysdep-cancel.h>
extern ssize_t __syscall_readv (int, __const struct iovec *, int);
libc_hidden_proto(__syscall_readv)
static ssize_t __atomic_readv_replacement (int, __const struct iovec *,
int) internal_function;
ssize_t
__readv (int fd, const struct iovec *vector, int count)
{
if (count <= UIO_MAXIOV)
{
if (SINGLE_THREAD_P)
return INLINE_SYSCALL (readv, 3, fd, vector, count);
int oldtype = LIBC_CANCEL_ASYNC ();
ssize_t result = INLINE_SYSCALL (readv, 3, fd, vector, count);
LIBC_CANCEL_RESET (oldtype);
return result;
}
else
return __atomic_readv_replacement (fd, vector, count);
}
weak_alias (__readv, readv)
#undef weak_alias
#define weak_alias(a,b)
#define __readv static internal_function __atomic_readv_replacement
#include <sysdeps/posix/readv.c>
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