diff options
author | Jim Meyering <jim@meyering.net> | 2002-12-04 07:43:18 +0000 |
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committer | Jim Meyering <jim@meyering.net> | 2002-12-04 07:43:18 +0000 |
commit | c5a4e28e9b22a49073a621a5a56e4d66e73aa512 (patch) | |
tree | 28d52fc2f24f4281bd3cc49b2b292431a956ccf2 /lib | |
parent | a1f5754a17ae911461e957281d8850b46903ebf9 (diff) | |
download | coreutils-c5a4e28e9b22a49073a621a5a56e4d66e73aa512.tar.xz |
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Diffstat (limited to 'lib')
-rw-r--r-- | lib/safe-rw.cin | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/lib/safe-rw.cin b/lib/safe-rw.cin deleted file mode 100644 index 2e2e2239b..000000000 --- a/lib/safe-rw.cin +++ /dev/null @@ -1,86 +0,0 @@ -/* @IGNORE@ -*- c -*- */ -/* @IGNORE@ This file is a template from which both safe-read.c and - @IGNORE@ safe-write.c are generated. */ -/* An interface to @rw@ that retries after interrupts. - Copyright (C) 1993, 1994, 1998, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#if HAVE_CONFIG_H -# include <config.h> -#endif - -/* Specification. */ -#include "safe-@rw@.h" - -/* Get ssize_t. */ -#include <sys/types.h> -#if HAVE_UNISTD_H -# include <unistd.h> -#endif - -#include <errno.h> -#ifndef errno -extern int errno; -#endif - -#ifdef EINTR -# define IS_EINTR(x) ((x) == EINTR) -#else -# define IS_EINTR(x) 0 -#endif - -#include <limits.h> - -#ifndef CHAR_BIT -# define CHAR_BIT 8 -#endif - -/* The extra casts work around common compiler bugs. */ -#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) -/* The outer cast is needed to work around a bug in Cray C 5.0.3.0. - It is necessary at least when t == time_t. */ -#define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \ - ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0)) -#define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t))) - -#ifndef INT_MAX -# define INT_MAX TYPE_MAXIMUM (int) -#endif - -/* @Rw@ up to COUNT bytes at BUF @from_to@ descriptor FD, retrying if interrupted. - Return the actual number of bytes @read_written@, zero for EOF, or SAFE_@RW@_ERROR - upon error. */ -size_t -safe_@rw@ (int fd, void @const@*buf, size_t count) -{ - ssize_t result; - - /* POSIX limits COUNT to SSIZE_MAX, but we limit it further, requiring - that COUNT <= INT_MAX, to avoid triggering a bug in Tru64 5.1. - When decreasing COUNT, keep the file pointer block-aligned. - Note that in any case, @rw@ may succeed, yet @rw@ fewer than COUNT - bytes, so the caller must be prepared to handle partial results. */ - if (count > INT_MAX) - count = INT_MAX & ~8191; - - do - { - result = @rw@ (fd, buf, count); - } - while (result < 0 && IS_EINTR (errno)); - - return (size_t) result; -} |