38 lines
1.5 KiB
C++
38 lines
1.5 KiB
C++
internal
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String8 rntuple_description(Arena *arena, const RNTuple_Info &ntuple)
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{
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String8 desc = push_str8f(arena, "version %u.%u.%u.%u",
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ntuple.version.epoch,
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ntuple.version.major,
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ntuple.version.minor,
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ntuple.version.patch);
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return desc;
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}
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internal
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RNTuple_Info get_rntuple_info(const char *fname, const char *ntpl_name)
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{
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RNTuple_Info info = {};
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// TODO: proper error handling
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root::RMicroFileReader file_reader { fname };
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root::RNTuple_File_Info file_info = file_reader.GetNTupleProper(ntpl_name);
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if (!file_info.failed) {
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info.version.epoch = file_info.anchor.fVersionEpoch;
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info.version.major = file_info.anchor.fVersionMajor;
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info.version.minor = file_info.anchor.fVersionMinor;
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info.version.patch = file_info.anchor.fVersionPatch;
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info.rng_header.start = file_info.anchor.fSeekHeader;
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info.rng_header.len = file_info.anchor.fNBytesHeader;
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info.rng_footer.start = file_info.anchor.fSeekFooter;
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info.rng_footer.len = file_info.anchor.fNBytesFooter;
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info.rng_anchor.start = file_info.anchor_seek;
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info.rng_anchor.len = file_info.anchor_nbytes;
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info.rng_anchor_key.start = file_info.anchor_key_seek;
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info.rng_anchor_key.len = file_info.anchor_key_nbytes;
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info.rblob_header_size = file_info.rblob_key_header_nbytes;
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info.root_file_header_size = file_info.tfile_header_nbytes;
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}
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return info;
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}
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