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slight portability improvement: use madvise(... MADV_SEQUENTIAL ...)

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iff MADV_SEQUENTIAL is actually defined.
This commit is contained in:
cgd 2001-03-21 23:16:33 +00:00
parent 77fbd9fe1c
commit ab2465366a
1 changed files with 4 additions and 2 deletions
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6
usr.bin/xinstall/xinstall.c
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@ -1,4 +1,4 @@
/* $NetBSD: xinstall.c,v 1.43 2001/02/21 00:06:22 cgd Exp $ */
/* $NetBSD: xinstall.c,v 1.44 2001/03/21 23:16:33 cgd Exp $ */
/*
* Copyright (c) 1987, 1993
@ -43,7 +43,7 @@ __COPYRIGHT("@(#) Copyright (c) 1987, 1993\n\
#if 0
static char sccsid[] = "@(#)xinstall.c 8.1 (Berkeley) 7/21/93";
#else
__RCSID("$NetBSD: xinstall.c,v 1.43 2001/02/21 00:06:22 cgd Exp $");
__RCSID("$NetBSD: xinstall.c,v 1.44 2001/03/21 23:16:33 cgd Exp $");
#endif
#endif /* not lint */
@ -537,9 +537,11 @@ copy(from_fd, from_name, to_fd, to_name, size)
(void)unlink(to_name);
errx(1, "%s: %s", from_name, strerror(serrno));
}
#ifdef MADV_SEQUENTIAL
if (madvise(p, (size_t)size, MADV_SEQUENTIAL) == -1
&& errno != EOPNOTSUPP)
warnx("madvise: %s", strerror(errno));
#endif
if (write(to_fd, p, size) != size) {
serrno = errno;