710     z_stream zs { nullptr };  in DumpCompressedTrace()  local
714     if (memset_s(&zs, sizeof(zs), 0, sizeof(zs)) != 0) {  in DumpCompressedTrace()
719     int ret = deflateInit(&zs, Z_DEFAULT_COMPRESSION);  in DumpCompressedTrace()
730     zs.next_out = reinterpret_cast<Bytef*>(out.get());  in DumpCompressedTrace()
731     zs.avail_out = CHUNK_SIZE;  in DumpCompressedTrace()
735         if (zs.avail_in == 0 && flush == Z_NO_FLUSH) {  in DumpCompressedTrace()
743                 zs.next_in = reinterpret_cast<Bytef*>(in.get());  in DumpCompressedTrace()
744                 zs.avail_in = bytesRead;  in DumpCompressedTrace()
747         if (zs.avail_out == 0) {  in DumpCompressedTrace()
753             zs.next_out = reinterpret_cast<Bytef*>(out.get());  in DumpCompressedTrace()
754             zs.avail_out = CHUNK_SIZE;  in DumpCompressedTrace()
757         ret = deflate(&zs, flush);  in DumpCompressedTrace()
759             size_t have = CHUNK_SIZE - zs.avail_out;  in DumpCompressedTrace()
776     ret = deflateEnd(&zs);  in DumpCompressedTrace()