pmt: revert 7f8090b

jni/parted/libgnulib/lib/safe-read.c

@@ -1,71 +0,0 @@
-/* An interface to read and write that retries after interrupts.
-
-   Copyright (C) 1993-1994, 1998, 2002-2006, 2009-2024 Free Software
-   Foundation, Inc.
-
-   This file is free software: you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of the
-   License, or (at your option) any later version.
-
-   This file 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 Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Specification.  */
-#ifdef SAFE_WRITE
-# include "safe-write.h"
-#else
-# include "safe-read.h"
-#endif
-
-/* Get ssize_t.  */
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <errno.h>
-
-#ifdef EINTR
-# define IS_EINTR(x) ((x) == EINTR)
-#else
-# define IS_EINTR(x) 0
-#endif
-
-#include "sys-limits.h"
-
-#ifdef SAFE_WRITE
-# define safe_rw safe_write
-# define rw write
-typedef void const *bufptr;
-#else
-# define safe_rw safe_read
-# define rw read
-typedef void *bufptr;
-#endif
-
-/* Read(write) up to COUNT bytes at BUF from(to) descriptor FD, retrying if
-   interrupted.  Return the number of bytes read(written), zero for EOF,
-   or -1 upon error.  */
-ptrdiff_t
-safe_rw (int fd, bufptr buf, idx_t count)
-{
-  for (;;)
-    {
-      ssize_t result = rw (fd, buf, count <= (size_t) -1 ? count : (size_t) -1);
-
-      if (0 <= result)
-        return result;
-      else if (IS_EINTR (errno))
-        continue;
-      else if (errno == EINVAL && SYS_BUFSIZE_MAX < count)
-        count = SYS_BUFSIZE_MAX;
-      else
-        return result;
-    }
-}