FindDatFileSize calculate .dat file size from max offset entry there may be extra deletions after that entry but they are deletions anyway.

WriteDatFile generates .dat from .ec00 ~ .ec09 files.

WriteEcFiles generates .ec00 ~ .ec13 files.

write .idx file from .ecx and .ecj files.

WriteSortedFileFromIdx generates .ecx file from existing .idx file all keys are sorted in ascending order.

1GB.

1MB.

data structure used in master.