freebsd-dev/sys/compat/cloudabi/cloudabi_file.c
Ed Schouten 4fa92fb538 Make posix_fallocate() and posix_fadvise() work.
We can map these system calls directly to the FreeBSD counterparts. The
other filesystem related system calls will be sent out for review
separately, as they are a bit more complex to get right.
2015-07-15 09:14:06 +00:00

183 lines
4.0 KiB
C

/*-
* Copyright (c) 2015 Nuxi, https://nuxi.nl/
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/fcntl.h>
#include <sys/syscallsubr.h>
#include <compat/cloudabi/cloudabi_proto.h>
#include <compat/cloudabi/cloudabi_syscalldefs.h>
int
cloudabi_sys_file_advise(struct thread *td,
struct cloudabi_sys_file_advise_args *uap)
{
int advice;
switch (uap->advice) {
case CLOUDABI_ADVICE_DONTNEED:
advice = POSIX_FADV_DONTNEED;
break;
case CLOUDABI_ADVICE_NOREUSE:
advice = POSIX_FADV_NOREUSE;
break;
case CLOUDABI_ADVICE_NORMAL:
advice = POSIX_FADV_NORMAL;
break;
case CLOUDABI_ADVICE_RANDOM:
advice = POSIX_FADV_RANDOM;
break;
case CLOUDABI_ADVICE_SEQUENTIAL:
advice = POSIX_FADV_SEQUENTIAL;
break;
case CLOUDABI_ADVICE_WILLNEED:
advice = POSIX_FADV_WILLNEED;
break;
default:
return (EINVAL);
}
return (kern_posix_fadvise(td, uap->fd, uap->offset, uap->len, advice));
}
int
cloudabi_sys_file_allocate(struct thread *td,
struct cloudabi_sys_file_allocate_args *uap)
{
return (kern_posix_fallocate(td, uap->fd, uap->offset, uap->len));
}
int
cloudabi_sys_file_create(struct thread *td,
struct cloudabi_sys_file_create_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_file_link(struct thread *td,
struct cloudabi_sys_file_link_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_file_open(struct thread *td,
struct cloudabi_sys_file_open_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_file_readdir(struct thread *td,
struct cloudabi_sys_file_readdir_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_file_readlink(struct thread *td,
struct cloudabi_sys_file_readlink_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_file_rename(struct thread *td,
struct cloudabi_sys_file_rename_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_file_stat_fget(struct thread *td,
struct cloudabi_sys_file_stat_fget_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_file_stat_fput(struct thread *td,
struct cloudabi_sys_file_stat_fput_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_file_stat_get(struct thread *td,
struct cloudabi_sys_file_stat_get_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_file_stat_put(struct thread *td,
struct cloudabi_sys_file_stat_put_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_file_symlink(struct thread *td,
struct cloudabi_sys_file_symlink_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}
int
cloudabi_sys_file_unlink(struct thread *td,
struct cloudabi_sys_file_unlink_args *uap)
{
/* Not implemented. */
return (ENOSYS);
}