From e1908ae95dd4c9d19ee4dfabfc8bf8a7f85943fe Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 18:58:41 +0200 Subject: Adding upstream version 9.4. Signed-off-by: Daniel Baumann --- lib/fadvise.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 lib/fadvise.c (limited to 'lib/fadvise.c') diff --git a/lib/fadvise.c b/lib/fadvise.c new file mode 100644 index 0000000..79e6ac7 --- /dev/null +++ b/lib/fadvise.c @@ -0,0 +1,43 @@ +/* Declare an access pattern hint for files. + Copyright (C) 2010-2023 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 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 + 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, see . */ + +/* Without this pragma, gcc suggests that (given !HAVE_POSIX_FADVISE) + the fdadvise function might be a candidate for attribute 'const'. */ +#if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__ +# pragma GCC diagnostic ignored "-Wsuggest-attribute=const" +#endif + +#include +#include "fadvise.h" + +#include +#include +#include "ignore-value.h" + +void +fdadvise (int fd, off_t offset, off_t len, fadvice_t advice) +{ +#if HAVE_POSIX_FADVISE + ignore_value (posix_fadvise (fd, offset, len, advice)); +#endif +} + +void +fadvise (FILE *fp, fadvice_t advice) +{ + if (fp) + fdadvise (fileno (fp), 0, 0, advice); +} -- cgit v1.2.3