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authorUlrich Drepper <drepper@redhat.com>2009-04-03 19:57:16 +0000
committerUlrich Drepper <drepper@redhat.com>2009-04-03 19:57:16 +0000
commite109c6124fe121618e42ba882e2a0af6e97b8efc (patch)
tree1e5ab3fe5ac14fe05fef1e21a6ef0653f1cce2b4 /misc/sys/uio.h
parent7166c77ad06b44571398d641e00153145da04a2b (diff)
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* misc/Makefile (routines): Add preadv, preadv64, pwritev, pwritev64.
* misc/Versions: Export preadv, preadv64, pwritev, pwritev64 for GLIBC_2.10. * misc/sys/uio.h: Declare preadv, preadv64, pwritev, pwritev64. * sysdeps/unix/sysv/linux/kernel-features.h: Add entries for preadv and pwritev. * misc/preadv.c: New file. * misc/preadv64.c: New file. * misc/pwritev.c: New file. * misc/pwritev64.c: New file. * sysdeps/posx/preadv.c: New file. * sysdeps/posx/preadv64.c: New file. * sysdeps/posx/pwritev.c: New file. * sysdeps/posx/pwritev64.c: New file. * sysdeps/unix/sysv/linux/preadv.c: New file. * sysdeps/unix/sysv/linux/preadv64.c: New file. * sysdeps/unix/sysv/linux/pwritev.c: New file. * sysdeps/unix/sysv/linux/pwritev64.c: New file. * sysdeps/unix/sysv/linux/wordsize-64/preadv64.c: New file. * sysdeps/unix/sysv/linux/wordsize-64/pwritev64.c: New file.
Diffstat (limited to 'misc/sys/uio.h')
-rw-r--r--misc/sys/uio.h83
1 files changed, 76 insertions, 7 deletions
diff --git a/misc/sys/uio.h b/misc/sys/uio.h
index 1b203f7..a3c7829 100644
--- a/misc/sys/uio.h
+++ b/misc/sys/uio.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 92, 96, 97, 98, 99, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1992,1996-1999,2003,2009 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
@@ -30,24 +30,93 @@ __BEGIN_DECLS
/* Read data from file descriptor FD, and put the result in the
- buffers described by IOVEC, which is a vector of COUNT `struct iovec's.
+ buffers described by IOVEC, which is a vector of COUNT 'struct iovec's.
The buffers are filled in the order specified.
- Operates just like `read' (see <unistd.h>) except that data are
+ Operates just like 'read' (see <unistd.h>) except that data are
put in IOVEC instead of a contiguous buffer.
This function is a cancellation point and therefore not marked with
__THROW. */
-extern ssize_t readv (int __fd, __const struct iovec *__iovec, int __count);
+extern ssize_t readv (int __fd, __const struct iovec *__iovec, int __count)
+ __wur;
/* Write data pointed by the buffers described by IOVEC, which
- is a vector of COUNT `struct iovec's, to file descriptor FD.
+ is a vector of COUNT 'struct iovec's, to file descriptor FD.
The data is written in the order specified.
- Operates just like `write' (see <unistd.h>) except that the data
+ Operates just like 'write' (see <unistd.h>) except that the data
are taken from IOVEC instead of a contiguous buffer.
This function is a cancellation point and therefore not marked with
__THROW. */
-extern ssize_t writev (int __fd, __const struct iovec *__iovec, int __count);
+extern ssize_t writev (int __fd, __const struct iovec *__iovec, int __count)
+ __wur;
+
+
+#ifdef __USE_BSD
+# ifndef __USE_FILE_OFFSET64
+/* Read data from file descriptor FD at the given position OFFSET
+ without change the file pointer, and put the result in the buffers
+ described by IOVEC, which is a vector of COUNT 'struct iovec's.
+ The buffers are filled in the order specified. Operates just like
+ 'read' (see <unistd.h>) except that data are put in IOVEC instead
+ of a contiguous buffer.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern ssize_t preadv (int __fd, __const struct iovec *__iovec, int __count,
+ __off_t __offset) __wur;
+
+/* Write data pointed by the buffers described by IOVEC, which is a
+ vector of COUNT 'struct iovec's, to file descriptor FD at the given
+ position OFFSET without change the file pointer. The data is
+ written in the order specified. Operates just like 'write' (see
+ <unistd.h>) except that the data are taken from IOVEC instead of a
+ contiguous buffer.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern ssize_t pwritev (int __fd, __const struct iovec *__iovec, int __count,
+ __off_t __offset) __wur;
+# else
+# ifdef __REDIRECT
+extern ssize_t __REDIRECT (preadv, (int __fd, __const struct iovec *__iovec,
+ int __count, __off_t __offset),
+ preadv64) __wur;
+extern ssize_t __REDIRECT (pwritev, (int __fd, __const struct iovec *__iovec,
+ int __count, __off_t __offset),
+ pwritev64) __wur;
+# else
+# define preadv preadv64
+# define pwritev pwritev64
+# endif
+# endif
+
+# ifdef __USE_LARGEFILE64
+/* Read data from file descriptor FD at the given position OFFSET
+ without change the file pointer, and put the result in the buffers
+ described by IOVEC, which is a vector of COUNT 'struct iovec's.
+ The buffers are filled in the order specified. Operates just like
+ 'read' (see <unistd.h>) except that data are put in IOVEC instead
+ of a contiguous buffer.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern ssize_t preadv64 (int __fd, __const struct iovec *__iovec, int __count,
+ __off64_t __offset) __wur;
+
+/* Write data pointed by the buffers described by IOVEC, which is a
+ vector of COUNT 'struct iovec's, to file descriptor FD at the given
+ position OFFSET without change the file pointer. The data is
+ written in the order specified. Operates just like 'write' (see
+ <unistd.h>) except that the data are taken from IOVEC instead of a
+ contiguous buffer.
+
+ This function is a cancellation point and therefore not marked with
+ __THROW. */
+extern ssize_t pwritev64 (int __fd, __const struct iovec *__iovec, int __count,
+ __off64_t __offset) __wur;
+# endif
+#endif /* Use BSD */
__END_DECLS