How to serialize protobuf message into a pre-allocated byte array with offset in c#? (Protobuf 3.32.0.0)

Question

The methods AI showed me are not working. However, one method mentioned by AI seems to be usable, but it is private：

private CodedOutputStream(byte[] buffer, int offset, int length)

So, how can I serialize a protobuf message into a preallocated byte array? The preallocated array is large enough.

21k · Accepted Answer · 2025-08-16 17:53:02Z

0

I think I found a way, it's easier than I thought:

    var size = msg.CalculateSize(); // msg is protobuf::Message
    var span = _cache.AsSpan(4, size); // _cache is pre-allocated byte array
    msg.WriteTo(span);

answered Aug 16 at 17:53

21k

4395 silver badges19 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to serialize protobuf message into a pre-allocated byte array with offset in c#? (Protobuf 3.32.0.0)

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related