mergerfs/src/fs_statvfs.hpp

84 lines
1.7 KiB
C++

/*
ISC License
Copyright (c) 2019, Antonio SJ Musumeci <trapexit@spawn.link>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#include "errno.hpp"
#include "fs_close.hpp"
#include "fs_open.hpp"
#include <cstdint>
#include <string>
#include <sys/statvfs.h>
#ifndef O_PATH
# define O_PATH 0
#endif
namespace fs
{
static
inline
int
statvfs(const char *path_,
struct statvfs *st_)
{
return ::statvfs(path_,st_);
}
static
inline
int
statvfs(const std::string &path_,
struct statvfs *st_)
{
return fs::statvfs(path_.c_str(),st_);
}
static
inline
int
fstatvfs(const int fd_,
struct statvfs *st_)
{
return ::fstatvfs(fd_,st_);
}
static
inline
int
lstatvfs(const std::string &path_,
struct statvfs *st_)
{
int fd;
int rv;
fd = fs::open(path_,O_RDONLY|O_NOFOLLOW|O_PATH);
if(fd == -1)
return -1;
rv = fs::fstatvfs(fd,st_);
fs::close(fd);
return rv;
}
}