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/*
* Prototypes for write and writev replacements to handle partial writes.
*
* The canonical version of this file is maintained in the rra-c-util package,
* which can be found at <https://www.eyrie.org/~eagle/software/rra-c-util/>.
*
* Written by Russ Allbery <eagle@eyrie.org>
* Copyright 2008, 2010, 2013
* The Board of Trustees of the Leland Stanford Junior University
* Copyright 2004-2006 Internet Systems Consortium, Inc. ("ISC")
* Copyright 1991, 1994-2003 The Internet Software Consortium and Rich Salz
*
* This code is derived from software contributed to the Internet Software
* Consortium by Rich Salz.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* SPDX-License-Identifier: ISC
*/
#ifndef UTIL_XWRITE_H
#define UTIL_XWRITE_H 1
#include <config.h>
#include <portable/macros.h>
#include <sys/types.h>
/* Forward declaration to avoid an include. */
struct iovec;
BEGIN_DECLS
/* Default to a hidden visibility for all util functions. */
#pragma GCC visibility push(hidden)
/*
* Like the non-x versions of the same function, but keep writing until either
* the write is not making progress or there's a real error. Handle partial
* writes and EINTR/EAGAIN errors.
*/
ssize_t xpwrite(int fd, const void *buffer, size_t size, off_t offset)
__attribute__((__nonnull__));
ssize_t xwrite(int fd, const void *buffer, size_t size)
__attribute__((__nonnull__));
ssize_t xwritev(int fd, const struct iovec *iov, int iovcnt)
__attribute__((__nonnull__));
/* Undo default visibility change. */
#pragma GCC visibility pop
END_DECLS
#endif /* UTIL_XWRITE_H */
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