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47 lines
1.3 KiB
47 lines
1.3 KiB
/*
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ISC License
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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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#pragma once
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#include "fasthash.h"
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#include <stdint.h>
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#include <sys/stat.h>
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namespace fs
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{
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namespace inode
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{
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static const uint64_t MAGIC = 0x7472617065786974;
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inline
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void
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recompute(struct stat *st_)
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{
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uint64_t buf[5];
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buf[0] = st_->st_ino;
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buf[1] = st_->st_dev;
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buf[2] = buf[0] ^ buf[1];
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buf[3] = buf[0] & buf[1];
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buf[4] = buf[0] | buf[1];
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st_->st_ino = fasthash64(&buf[0],sizeof(buf),MAGIC);
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}
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}
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}
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