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a/src/utils/fstreewalk.h b/src/utils/fstreewalk.h
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    // Only st_mtime, st_ctime, st_size, st_mode (filetype bits: dir/reg/lnk),
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    // Only st_mtime, st_ctime, st_size, st_mode (filetype bits: dir/reg/lnk),
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    virtual FsTreeWalker::Status 
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    virtual FsTreeWalker::Status 
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    processone(const string &, const struct stat *, FsTreeWalker::CbFlag) 
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    processone(const string &, const struct stat *, FsTreeWalker::CbFlag) 
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    = 0;
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    = 0;
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};
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};
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// Utility function. Somewhat like du.
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int64_t fsTreeBytes(const string& topdir);
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#endif /* _FSTREEWALK_H_INCLUDED_ */
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#endif /* _FSTREEWALK_H_INCLUDED_ */