26 lines
1.1 KiB
C
26 lines
1.1 KiB
C
|
/* An interface to read() that retries after interrupts.
|
||
|
|
Copyright (C) 2002 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This program is free software; you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation; either version 2, or (at your option)
|
||
|
|
any later version.
|
||
|
|
|
||
|
|
This program is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
GNU General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with this program; if not, write to the Free Software Foundation,
|
||
|
|
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
|
||
|
|
|
||
|
|
#include <stddef.h>
|
||
|
|
|
||
|
|
#define SAFE_READ_ERROR ((size_t) -1)
|
||
|
|
|
||
|
|
/* Read up to COUNT bytes at BUF from descriptor FD, retrying if interrupted.
|
||
|
|
Return the actual number of bytes read, zero for EOF, or SAFE_READ_ERROR
|
||
|
|
upon error. */
|
||
|
|
extern size_t safe_read (int fd, void *buf, size_t count);
|