Question How to write to File using BinarySerialization from Unity Serialization Package?

The Documentation says:

Source: https://docs.unity3d.com/Packages/c...Serialization.Binary.BinarySerialization.html

Let's ignore the fact that it says "json data" which has to be wrong because it's binary data and focus on the "File" part of the sentence.
There has to be a way to write to a binary file with this package. I need the performance and I don't trust any other Asset / Github Repo or anything. I wan't to read/write with Burst performance because in my specific case we are talking about Gigabytes of data.

Has anyone ever done this? Any examples? Anything?
I've found literally no results on google. Seems like no one has ever used it in this way. So maybe some Unity Devs could help out?

 

Used it! It‘s awesome (json: NOT, just the binary part).

Here is an extension that serializes native collections: https://gist.github.com/CodeSmile-0000011110110111/9bc7d884ddba6a8bb733e6b656d239b5
More examples: https://github.com/CodeSmile-000001...sets/CodeSmile/ProTiler/Runtime/Serialization

In essence it is not about writing files. It creates or reads from a byte[] . The file part is still handled by System.IO.File class.

 

I see, so the serialization package is unable to access anything on the hard drive?

I've checked the JSON Part of the Package and there are some special classes for parallel reading/writing from the Hard Drive based on a File-Stream that's then used in parallel. But it only works with "char" which wouldn't work with bytes.

So basically all the Serialization Package can do for me is converting Objects to byte arrays and vice versa. If I need parallel reading from files, I have to implement it myself, right?

Still thanks a lot for the code snippets, I'll probably just read bytes, use your code for conversion (byte[] to NativeArray) and then hope for the best. xD

 

A char is a byte in disguise.

Parallel IO shouldn‘t require more than async read/write methods.
In one of my examples you‘ll also see that I Gzip the byte array because the time it takes to zip can be far outweighed by the disk read/write performance - depends on the data and how compressible it is and of course the device/hardware.