solcap v3 #7626
Draft
solcap v3 #7626
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This patch adds a fast embedded dependency-free Protobuf encoder. The encoder operates at the wire-format level and can serialize any proto3 message (excluding the deprecated groups feature). The encoder's design incorporates a few features that sets it apart from alternatives (Protobuf-C++, nanopb), and more useful to Firedancer: - Simple: does not require protoc, absl, etc. - Serializes in two passes (encode, fixup length prefixes) - Does not require allocations - Allows user to serialize existing handwritten structs (instead of having to indirect through a Protobuf-generated struct) - Structured to benefit from compiler's CFG optimizations (bounds check elision): consists of a single header library containing pure functions - Various encoding tricks (tail clobbering) to reduce branches and code footprint
Adds a packet writer abstraction intended for use in solcap producer code. This decouples solcap event generation / Firedancer runtime from the specifics of the solcap logging setup. The first two backends provided are pcapng (dumps out solcap events as fake UDP packets) and tango (sends solcap events to other tiles on the Firedancer message bus).
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR is a rewrite of solcap structured runtime event logging infrastructure