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/* Copyright (C) 1997, 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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 <assert.h>
#include <errno.h>
#include <endian.h>
#include <unistd.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <bp-checks.h>
#include <nptl/pthreadP.h>
#include <tls.h>
#ifndef __NR_pwrite64
# error "__NR_pwrite64 must be defined"
#endif
/* The order of hi, lo depends on endianness. */
extern ssize_t __syscall_pwrite64 (int fd, const void *__unbounded buf,
size_t count, off_t offset_hi,
off_t offset_lo);
ssize_t
__libc_pwrite (fd, buf, count, offset)
int fd;
const void *buf;
size_t count;
off_t offset;
{
/* First try the syscall. */
assert (sizeof (offset) == 4);
#ifndef NOT_IN_libc
if (__builtin_expect (THREAD_GETMEM (THREAD_SELF,
header.data.multiple_threads) == 0, 1))
return INLINE_SYSCALL (pwrite64, 5, fd, CHECK_N (buf, count), count,
__LONG_LONG_PAIR (offset >> 31, offset));
int oldtype = LIBC_CANCEL_ASYNC ();
#endif
ssize_t result = INLINE_SYSCALL (pwrite64, 5, fd, CHECK_N (buf, count),
count,
__LONG_LONG_PAIR (offset >> 31, offset));
#ifndef NOT_IN_libc
LIBC_CANCEL_RESET (oldtype);
#endif
return result;
}
strong_alias (__libc_pwrite, __pwrite)
weak_alias (__libc_pwrite, pwrite)
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