* sysdeps/x86_64/memset.S: Jump from bzero to memset using
[glibc/pb-stable.git] / io / sys / sendfile.h
blob4c1367b6be75a8edf42709a8b40ad00b113f6b15
1 /* sendfile -- copy data directly from one file descriptor to another
2 Copyright (C) 1998,99,01,2002,2004 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #ifndef _SYS_SENDFILE_H
21 #define _SYS_SENDFILE_H 1
23 #include <features.h>
24 #include <sys/types.h>
26 __BEGIN_DECLS
28 /* Send up to COUNT bytes from file associated with IN_FD starting at
29 *OFFSET to descriptor OUT_FD. Set *OFFSET to the IN_FD's file position
30 following the read bytes. If OFFSET is a null pointer, use the normal
31 file position instead. Return the number of written bytes, or -1 in
32 case of error. */
33 #ifndef __USE_FILE_OFFSET64
34 extern ssize_t sendfile (int __out_fd, int __in_fd, off_t *__offset,
35 size_t __count) __THROW;
36 #else
37 # ifdef __REDIRECT_NTH
38 extern ssize_t __REDIRECT_NTH (sendfile,
39 (int __out_fd, int __in_fd, __off64_t *__offset,
40 size_t __count), sendfile64);
41 # else
42 # define sendfile sendfile64
43 # endif
44 #endif
45 #ifdef __USE_LARGEFILE64
46 extern ssize_t sendfile64 (int __out_fd, int __in_fd, __off64_t *__offset,
47 size_t __count) __THROW;
48 #endif
50 __END_DECLS
52 #endif /* sys/sendfile.h */