340   compressed.uncompressedSize = size;  in maybeCompress()
355     compressed.shards = std::make_unique<SmallVector<uint8_t, 0>[]>(1);  in maybeCompress()
356     SmallVector<uint8_t, 0> &out = compressed.shards[0];  in maybeCompress()
427   compressed.shards = std::move(shardsOut);  in maybeCompress()
428   compressed.numShards = numShards;  in maybeCompress()
429   compressed.checksum = checksum;  in maybeCompress()
456   if (compressed.shards) {  in writeTo()
458     chdr->ch_size = compressed.uncompressedSize;  in writeTo()
463       memcpy(buf, compressed.shards[0].data(), compressed.shards[0].size());  in writeTo()
469     auto offsets = std::make_unique<size_t[]>(compressed.numShards);  in writeTo()
471     for (size_t i = 1; i != compressed.numShards; ++i)  in writeTo()
472       offsets[i] = offsets[i - 1] + compressed.shards[i - 1].size();  in writeTo()
476     parallelFor(0, compressed.numShards, [&](size_t i) {  in writeTo()
477       memcpy(buf + offsets[i], compressed.shards[i].data(),  in writeTo()
478              compressed.shards[i].size());  in writeTo()
481     write32be(buf + (size - sizeof(*chdr) - 4), compressed.checksum);  in writeTo()