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author | Ulrich Drepper <drepper@redhat.com> | 2009-04-03 19:57:16 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2009-04-03 19:57:16 +0000 |
commit | e109c6124fe121618e42ba882e2a0af6e97b8efc (patch) | |
tree | 1e5ab3fe5ac14fe05fef1e21a6ef0653f1cce2b4 /misc/sys/uio.h | |
parent | 7166c77ad06b44571398d641e00153145da04a2b (diff) | |
download | glibc-e109c6124fe121618e42ba882e2a0af6e97b8efc.zip glibc-e109c6124fe121618e42ba882e2a0af6e97b8efc.tar.gz glibc-e109c6124fe121618e42ba882e2a0af6e97b8efc.tar.bz2 |
* 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.h | 83 |
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 |