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-rw-r--r--gl/safe-write.h24
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diff --git a/gl/safe-write.h b/gl/safe-write.h
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1/* An interface to write() that retries after interrupts.
2 Copyright (C) 2002, 2009-2010 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
16
17#include <stddef.h>
18
19#define SAFE_WRITE_ERROR ((size_t) -1)
20
21/* Write up to COUNT bytes at BUF to descriptor FD, retrying if interrupted.
22 Return the actual number of bytes written, zero for EOF, or SAFE_WRITE_ERROR
23 upon error. */
24extern size_t safe_write (int fd, const void *buf, size_t count);