1 /* Copyright (C) 2009 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 #include <sys/param.h>
22 #if __WORDSIZE == 64 && !defined PWRITEV
23 /* Hide the pwritev64 declaration. */
24 # define pwritev64 __redirect_pwritev64
28 #include <sysdep-cancel.h>
29 #include <sys/syscall.h>
30 #include <kernel-features.h>
33 #define __NR_pwritev 296
34 #elif defined __i386__
35 #define __NR_pwritev 334
40 # define PWRITEV pwritev
41 # define PWRITEV_REPLACEMENT __atomic_pwritev_replacement
42 # define PWRITE __pwrite
46 #ifndef __ASSUME_PWRITEV
47 static ssize_t
PWRITEV_REPLACEMENT (int, __const
struct iovec
*,
48 int, OFF_T
) internal_function
;
53 PWRITEV (fd
, vector
, count
, offset
)
55 const struct iovec
*vector
;
63 result
= INLINE_SYSCALL (pwritev
, 5, fd
, vector
, count
,
64 (off_t
) ((off64_t
) offset
>> 32),
65 (off_t
) (offset
& 0xffffffff));
68 int oldtype
= LIBC_CANCEL_ASYNC ();
70 result
= INLINE_SYSCALL (pwritev
, 5, fd
, vector
, count
,
71 (off_t
) ((off64_t
) offset
>> 32),
72 (off_t
) (offset
& 0xffffffff));
74 LIBC_CANCEL_RESET (oldtype
);
76 # ifdef __ASSUME_PWRITEV
81 #ifndef __ASSUME_PWRITEV
83 if (result
>= 0 || errno
!= ENOSYS
)
87 return PWRITEV_REPLACEMENT (fd
, vector
, count
, offset
);
90 #if __WORDSIZE == 64 && defined pwritev64
92 strong_alias (pwritev
, pwritev64
)
95 #ifndef __ASSUME_PWRITEV
97 # define PWRITEV static internal_function PWRITEV_REPLACEMENT
98 # include <sysdeps/posix/pwritev.c>