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- /* vi: set sw=4 ts=4: */
- /*
- * posix_fadvise() for uClibc
- * http://www.opengroup.org/onlinepubs/009695399/functions/posix_fadvise.html
- *
- * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
- *
- * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- */
- #include <sys/syscall.h>
- #include <fcntl.h>
- #ifdef __NR_fadvise64
- #define __NR_posix_fadvise __NR_fadvise64
- int posix_fadvise(int fd, off_t offset, off_t len, int advice)
- {
- INTERNAL_SYSCALL_DECL(err);
- int ret = (int) (INTERNAL_SYSCALL(posix_fadvise, err, 6, fd, 0,
- __LONG_LONG_PAIR (offset >> 31, offset), len, advice));
- if (INTERNAL_SYSCALL_ERROR_P (ret, err))
- return INTERNAL_SYSCALL_ERRNO (ret, err);
- return 0;
- }
- #if defined __UCLIBC_HAS_LFS__ && (!defined __NR_fadvise64_64 || !defined _syscall6)
- strong_alias(posix_fadvise,posix_fadvise64)
- #endif
- #else
- int posix_fadvise(int fd attribute_unused, off_t offset attribute_unused, off_t len attribute_unused, int advice attribute_unused)
- {
- #warning This is not correct as far as SUSv3 is concerned.
- return ENOSYS;
- }
- #endif
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