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annotate lib/safe-read.h @ 11639:b2e769838448

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hash: fix memory leak in last patch * lib/hash.c (hash_rehash): Avoid memory leak. Signed-off-by: Eric Blake <ebb9@byu.net>
author Eric Blake <ebb9@byu.net>
date Thu, 18 Jun 2009 15:24:38 -0600
parents bbbbbf4cd1c5
children b5e42ef33b49
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9fcf64c770ed Orthogonal approach to read()/write() that handles EINTR and counts > 2^31
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1 /* An interface to read() that retries after interrupts.
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2 Copyright (C) 2002, 2006 Free Software Foundation, Inc.
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3
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4 This program is free software: you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 3 of the License, or
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7 (at your option) any later version.
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8
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9 This program 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
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12 GNU 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 General Public License
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15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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16
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17 #include <stddef.h>
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18
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19 #ifdef __cplusplus
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20 extern "C" {
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21 #endif
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23
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24 #define SAFE_READ_ERROR ((size_t) -1)
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25
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26 /* Read up to COUNT bytes at BUF from descriptor FD, retrying if interrupted.
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27 Return the actual number of bytes read, zero for EOF, or SAFE_READ_ERROR
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28 upon error. */
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29 extern size_t safe_read (int fd, void *buf, size_t count);
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31
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32 #ifdef __cplusplus
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33 }
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34 #endif