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76 lines
1.8 KiB
76 lines
1.8 KiB
/*
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Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#if FALLOCATE
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#include <fuse.h>
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#include <errno.h>
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#include <fcntl.h>
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#include "fileinfo.hpp"
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static
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int
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_fallocate(const int fd,
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const int mode,
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const off_t offset,
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const off_t len)
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{
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int rv;
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#ifdef _GNU_SOURCE
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rv = ::fallocate(fd,mode,offset,len);
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#elif defined _XOPEN_SOURCE >= 600 || _POSIX_C_SOURCE >= 200112L
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if(mode)
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{
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rv = -1;
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errno = EOPNOTSUPP;
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}
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else
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{
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rv = ::posix_fallocate(fd,offset,len);
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}
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#else
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rv = -1;
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errno = EOPNOTSUPP;
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#endif
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return ((rv == -1) ? -errno : 0);
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}
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namespace mergerfs
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{
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namespace fuse
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{
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int
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fallocate(const char *fusepath,
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int mode,
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off_t offset,
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off_t len,
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fuse_file_info *ffi)
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{
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FileInfo *fi = reinterpret_cast<FileInfo*>(ffi->fh);
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return _fallocate(fi->fd,
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mode,
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offset,
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len);
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}
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}
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}
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#endif
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