| 1 | /* Copyright (C) 1991, 92, 96, 97, 98, 99 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, write to the Free |
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| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 17 | 02111-1307 USA. */ |
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| 18 | |
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| 19 | #ifndef _SYS_UIO_H |
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| 20 | #define _SYS_UIO_H 1 |
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| 21 | |
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| 22 | #include <features.h> |
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| 23 | |
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| 24 | #include <sys/types.h> |
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| 25 | |
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| 26 | __BEGIN_DECLS |
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| 27 | |
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| 28 | /* This file defines `struct iovec'. */ |
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| 29 | #include <bits/uio.h> |
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| 30 | |
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| 31 | |
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| 32 | /* Read data from file descriptor FD, and put the result in the |
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| 33 | buffers described by VECTOR, which is a vector of COUNT `struct iovec's. |
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| 34 | The buffers are filled in the order specified. |
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| 35 | Operates just like `read' (see <unistd.h>) except that data are |
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| 36 | put in VECTOR instead of a contiguous buffer. */ |
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| 37 | extern ssize_t readv (int __fd, __const struct iovec *__vector, int __count) |
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| 38 | __THROW; |
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| 39 | |
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| 40 | /* Write data pointed by the buffers described by VECTOR, which |
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| 41 | is a vector of COUNT `struct iovec's, to file descriptor FD. |
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| 42 | The data is written in the order specified. |
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| 43 | Operates just like `write' (see <unistd.h>) except that the data |
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| 44 | are taken from VECTOR instead of a contiguous buffer. */ |
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| 45 | extern ssize_t writev (int __fd, __const struct iovec *__vector, int __count) |
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| 46 | __THROW; |
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| 47 | |
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| 48 | __END_DECLS |
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| 49 | |
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| 50 | #endif /* sys/uio.h */ |
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