magicblock-labs / magicblock-labs/delegation-program

Implement WriteStateBuffer

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#216 0 comments 0 reactions 1 assignee View on GitHub

@snawaz is already working on this.

Since Sep 17, 2026.

Dominant language
Rust
Stars
30
Forks
21
Avg merge
20m
Merged PRs (30d)
1

Description

Scope

Create and grow the DLP-owned buffer at ["state-buffer", account, commit_id, authority], with matching header fields. Require the authority's signature and sequential writes with offset == written_len.

When the uploaded length reaches total_len, hash the data and freeze the buffer; reject further mutation. The writer is authority-specific, not operator-only: consuming instructions validate whether that authority is the operator or challenger for their flow.

This issue owns the upload and automatic-finalization implementation. #217 covers consistency of that contract across consumers and the API, not a second finalize instruction.

Design: v2 implementation notes.

Outcome

Upload and automatically finalize authority-bound account-state buffers through WriteStateBuffer.

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