Builds and writes the index to file.
The file format is a GVariant on disk and can be loaded and searched using FuzzyIndex.
| this | |
| file |
A File to write the index to |
| io_priority |
The priority for IO operations |
| cancellable |
An optional Cancellable or null |
| callback |
A callback for completion or null |
| user_data |
User data for |