/* An interface to read() that retries after interrupts.
- Copyright (C) 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2006 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ 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.
+ the Free Software Foundation; either version 3 of the License, 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
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <stddef.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#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 (size_t) -1
- for an error. */
+ 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);
+
+
+#ifdef __cplusplus
+}
+#endif