mirror of https://github.com/trapexit/mergerfs.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
2.1 KiB
84 lines
2.1 KiB
/*
|
|
The MIT License (MIT)
|
|
|
|
Copyright (c) 2014 Antonio SJ Musumeci <trapexit@spawn.link>
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
*/
|
|
|
|
#if FALLOCATE
|
|
|
|
#ifndef _GNU_SOURCE
|
|
#define _GNU_SOURCE
|
|
#endif
|
|
|
|
#include <fuse.h>
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
|
|
static
|
|
int
|
|
_fallocate(const int fd,
|
|
const int mode,
|
|
const off_t offset,
|
|
const off_t len)
|
|
{
|
|
int rv;
|
|
|
|
#ifdef _GNU_SOURCE
|
|
rv = ::fallocate(fd,mode,offset,len);
|
|
#elif defined _XOPEN_SOURCE >= 600 || _POSIX_C_SOURCE >= 200112L
|
|
if(mode)
|
|
{
|
|
rv = -1;
|
|
errno = EOPNOTSUPP;
|
|
}
|
|
else
|
|
{
|
|
rv = ::posix_fallocate(fd,offset,len);
|
|
}
|
|
#else
|
|
rv = -1;
|
|
errno = EOPNOTSUPP;
|
|
#endif
|
|
|
|
return ((rv == -1) ? -errno : 0);
|
|
}
|
|
|
|
namespace mergerfs
|
|
{
|
|
namespace fallocate
|
|
{
|
|
int
|
|
fallocate(const char *fusepath,
|
|
int mode,
|
|
off_t offset,
|
|
off_t len,
|
|
struct fuse_file_info *ffi)
|
|
{
|
|
return _fallocate(ffi->fh,
|
|
mode,
|
|
offset,
|
|
len);
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|