mirror of
https://github.com/trapexit/mergerfs.git
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55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
/*
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ISC License
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Copyright (c) 2020, 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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#include "fs_copydata_copy_file_range.hpp"
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#include "fs_copydata_readwrite.hpp"
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#include "fs_fadvise.hpp"
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#include "fs_ficlone.hpp"
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#include "fs_ftruncate.hpp"
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#include <stddef.h>
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namespace fs
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{
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int
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copydata(const int src_fd_,
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const int dst_fd_,
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const size_t count_)
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{
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int rv;
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rv = fs::ftruncate(dst_fd_,count_);
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if(rv == -1)
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return -1;
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rv = fs::ficlone(src_fd_,dst_fd_);
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if(rv != -1)
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return rv;
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fs::fadvise_willneed(src_fd_,0,count_);
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fs::fadvise_sequential(src_fd_,0,count_);
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rv = fs::copydata_copy_file_range(src_fd_,dst_fd_);
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if(rv != -1)
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return rv;
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return fs::copydata_readwrite(src_fd_,dst_fd_);
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}
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}
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