Code simplification: inline CTxInWitness inside CTxIn#8452
Closed
sipa wants to merge 2 commits intobitcoin:masterfrom
Closed
Code simplification: inline CTxInWitness inside CTxIn#8452sipa wants to merge 2 commits intobitcoin:masterfrom
sipa wants to merge 2 commits intobitcoin:masterfrom
Conversation
Contributor
|
wow I want this one! Actually, this is the approach I am using already in NBitcoin, will test soon. |
Contributor
|
concept ACK |
src/primitives/transaction.h
Outdated
Contributor
There was a problem hiding this comment.
nit: This is probably better suited as a member method of CTransaction.
Contributor
Member
Author
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
Sign up for free
to subscribe to this conversation on GitHub.
Already have an account?
Sign in.
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Based on #8451.
This is a code change that was suggested early on, but not included in the segwit PR to not invalidate review. It turns out to be simpler than what I had expected, and actually shortens the code.
Instead of a structure where all
CTransaction's witness data was encapsulated underCTransaction::wit, it is now inlined insideCTransaction::vin[x]. This also reduces memory usage for witness-bearing transactions (as no separate vector for allCTxInWitnesses is needed) and serialization/deserialization time as a result. For non-witness transactions with more than 1 input, it increases memory usage.I think it's neat that it changes the verbose and often-repeated
tx.wit.vtxinwit.size() > i ? &tx.wit.vtxinwit[i].scriptWitness : NULLpattern inVerifyScriptcalls to just&tx.vin[i].scriptWitness.This should have no effect on behaviour.