diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c b/sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c new file mode 100644 index 0000000000..6c539cd700 --- /dev/null +++ b/sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c @@ -0,0 +1,90 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library 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. + + The GNU C Library 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 the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <fcntl.h> +#include <sysdep.h> +#include <kernel-features.h> + +int __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise); +int __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise); + +/* Advice the system about the expected behaviour of the application with + respect to the file associated with FD. */ + +struct fadvise64_64_layout +{ + int fd; + off64_t offset; + off64_t len; + int advise; +}; + +int +__posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise) +{ +#ifdef __NR_fadvise64_64 + struct fadvise64_64_layout parameters; + INTERNAL_SYSCALL_DECL (err); + + parameters.fd = fd; + parameters.offset = offset; + parameters.len = len; + parameters.advise = advise; + int ret = INTERNAL_SYSCALL (fadvise64_64, err, 1, ¶meters); + if (!INTERNAL_SYSCALL_ERROR_P (ret, err)) + return 0; +# ifndef __ASSUME_FADVISE64_64_SYSCALL + if (INTERNAL_SYSCALL_ERRNO (ret, err) != ENOSYS) +# endif + return INTERNAL_SYSCALL_ERRNO (ret, err); +#endif +#ifndef __ASSUME_FADVISE64_64_SYSCALL +# ifdef __NR_fadvise64 + if (len != (off_t) len) + return EOVERFLOW; + + INTERNAL_SYSCALL_DECL (err2); + int ret2 = INTERNAL_SYSCALL (fadvise64, err2, 5, fd, + __LONG_LONG_PAIR ((long) (offset >> 32), + (long) offset), + (off_t) len, advise); + if (!INTERNAL_SYSCALL_ERROR_P (ret2, err2)) + return 0; + return INTERNAL_SYSCALL_ERRNO (ret2, err2); +# else + return ENOSYS; +# endif +#endif +} + +#include <shlib-compat.h> + +#if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3) + +int +__posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise) +{ + return __posix_fadvise64_l64 (fd, offset, len, advise); +} + +versioned_symbol (libc, __posix_fadvise64_l64, posix_fadvise64, GLIBC_2_3_3); +compat_symbol (libc, __posix_fadvise64_l32, posix_fadvise64, GLIBC_2_2); +#else +strong_alias (__posix_fadvise64_l64, posix_fadvise64); +#endif |