feat: Execute CommitDiff as BufferTask #616
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📝 WalkthroughWalkthroughAdds CommitDiff handling throughout the committor service: introduces 📜 Recent review detailsConfiguration used: Path: .coderabbit.yaml Review profile: CHILL Plan: Pro 📒 Files selected for processing (8)
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🧰 Additional context used🧠 Learnings (6)📚 Learning: 2025-11-21T10:22:07.520ZApplied to files:
📚 Learning: 2025-12-03T09:33:48.707ZApplied to files:
📚 Learning: 2025-12-03T09:36:01.527ZApplied to files:
📚 Learning: 2025-10-21T14:00:54.642ZApplied to files:
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📚 Learning: 2025-10-26T08:49:31.543ZApplied to files:
🧬 Code graph analysis (2)magicblock-committor-service/src/tasks/task_visitors/utility_visitor.rs (2)
magicblock-committor-service/src/tasks/args_task.rs (3)
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🔇 Additional comments (12)
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Actionable comments posted: 2
♻️ Duplicate comments (1)
magicblock-committor-service/src/tasks/mod.rs (1)
561-586: Tests still serialize Args-style commit instructions for BufferTask; add coverage for buffer strategy and*_from_bufferbuilders
test_buffer_task_instruction_serializationconstructsBufferTaskType::Commitwith aCommitTaskfromCommitTaskBuilder::create_commit_task(...), which still defaults toTaskStrategy::Args. BecauseBufferTask::instruction()now just delegates toCommitTask::create_commit_ix(), this test ends up exercising the Args path (plaincommit_state/commit_diff) rather than the new buffer-basedcommit_*_from_bufferinstructions.To actually cover the buffer paths and the new buffer instruction builders, update the test to either:
- call
switch_to_buffer_strategy()on theCommitTaskbefore wrapping it inBufferTaskType::Commit, or- construct a
CommitTaskwithTaskStrategy::Buffervia the builder or a helper, and assert thatcreate_commit_ix()produces the expected*_from_buffervariants.This aligns the test with the intended semantics of
BufferTaskand gives direct coverage of the new buffer commit flows.
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Cargo.lockis excluded by!**/*.locktest-integration/Cargo.lockis excluded by!**/*.locktest-integration/schedulecommit/elfs/dlp.sois excluded by!**/*.so
📒 Files selected for processing (6)
Cargo.toml(1 hunks)magicblock-committor-service/src/tasks/args_task.rs(1 hunks)magicblock-committor-service/src/tasks/buffer_task.rs(2 hunks)magicblock-committor-service/src/tasks/mod.rs(5 hunks)test-integration/Cargo.toml(1 hunks)test-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs(1 hunks)
🧰 Additional context used
🧠 Learnings (3)
📓 Common learnings
Learnt from: taco-paco
Repo: magicblock-labs/magicblock-validator PR: 661
File: magicblock-committor-service/src/intent_executor/single_stage_executor.rs:20-28
Timestamp: 2025-11-21T10:22:07.520Z
Learning: In magicblock-committor-service's SingleStageExecutor and TwoStageExecutor (single_stage_executor.rs and two_stage_executor.rs), the fields transaction_strategy, junk, and patched_errors are intentionally public because these executors are designed to be used independently outside of the IntentExecutor scope, and callers need access to these execution reports for cleanup and error handling.
📚 Learning: 2025-10-26T16:54:39.084Z
Learnt from: thlorenz
Repo: magicblock-labs/magicblock-validator PR: 587
File: test-manual/Cargo.toml:0-0
Timestamp: 2025-10-26T16:54:39.084Z
Learning: In the magicblock-validator repository, use git branch references (not commit hashes or tags) for the helius-laserstream dependency to allow automatic updates when the branch is pushed to.
Applied to files:
Cargo.toml
📚 Learning: 2025-11-21T10:22:07.520Z
Learnt from: taco-paco
Repo: magicblock-labs/magicblock-validator PR: 661
File: magicblock-committor-service/src/intent_executor/single_stage_executor.rs:20-28
Timestamp: 2025-11-21T10:22:07.520Z
Learning: In magicblock-committor-service's SingleStageExecutor and TwoStageExecutor (single_stage_executor.rs and two_stage_executor.rs), the fields transaction_strategy, junk, and patched_errors are intentionally public because these executors are designed to be used independently outside of the IntentExecutor scope, and callers need access to these execution reports for cleanup and error handling.
Applied to files:
magicblock-committor-service/src/tasks/mod.rs
🧬 Code graph analysis (3)
test-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs (1)
test-integration/programs/schedulecommit/src/order_book.rs (1)
bids(182-184)
magicblock-committor-service/src/tasks/buffer_task.rs (3)
magicblock-committor-program/src/state/chunks.rs (1)
from_data_length(46-49)magicblock-committor-service/src/tasks/mod.rs (1)
optimize(78-80)magicblock-committor-service/src/tasks/args_task.rs (1)
optimize(87-100)
magicblock-committor-service/src/tasks/mod.rs (1)
magicblock-committor-service/src/persist/types/commit_strategy.rs (1)
args(17-23)
🔇 Additional comments (6)
test-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs (1)
256-262: Change is appropriate for stress-testing the BufferTask implementation.The 10x increase in test data (max 200 entries vs. 20 previously) aligns with the PR's goal of validating CommitDiff as BufferTask for large accounts. Verification confirms:
- CI runs on
extra-largerunner with adequate resources- No explicit test timeout configured (relies on GitHub Actions default 360-minute limit)
- Test is intentionally "huge" and properly instrumented with seed output for reproducibility
No environment capacity concerns identified.
Cargo.toml (1)
112-114: Delegation-program git rev bump looks consistent; verify compatibility with new buffer commit instructionsThe new
magicblock-delegation-programrev is pinned consistently here and intest-integration/Cargo.toml, and the feature set is unchanged ("no-entrypoint"), so workspace wiring looks good. Please just confirm this rev contains the*_from_buffercommit instructions your newCommitTaskbuffer paths rely on and that integration tests pass against it.test-integration/Cargo.toml (1)
60-62: Test workspace dependency aligned with root; ensure integration tests cover new buffer commit pathsThe
magicblock-delegation-programrev here matches the root workspace and keeps"no-entrypoint", so dependency alignment looks correct. Please make sure the updated integration tests actually exercise the new buffer-based commit/diff paths against this program version.magicblock-committor-service/src/tasks/args_task.rs (1)
91-95: Commit optimization correctly switches to Buffer strategy before wrapping in BufferTaskRouting
ArgsTaskType::Committhroughvalue.switch_to_buffer_strategy()before constructingBufferTaskType::Commitensures that optimized commit tasks consistently take the buffer-based path (and thus use the new*_from_bufferinstructions). This aligns with the newTaskStrategydesign and fixes the prior need for ad‑hoc flags.magicblock-committor-service/src/tasks/mod.rs (2)
55-59: TaskStrategy + CommitTask refactor gives a clean two-path model (Args vs Buffer)Introducing
TaskStrategyand threading it throughCommitTask(withCommitTaskBuilderdefaulting toArgsandswitch_to_buffer_strategy()for buffer flows) makes the commit behavior explicit and removes the previous ad‑hoc flagging. Thecreate_commit_ix()match on(strategy, base_account)cleanly encodes:
- Args + no base account →
CommitState.- Args + base account →
CommitDiff.- Buffer + no base account →
CommitStateFromBuffer.- Buffer + base account →
CommitDiffFromBuffer.This layout is straightforward to reason about and aligns well with the PR’s goal of supporting CommitDiff via BufferTask without degrading to CommitState purely due to transaction-size constraints.
Also applies to: 149-167, 169-193
4-6: I'll search the public magicblock repositories to verify the API contract.I need to search for the actual source code of the delegation-program repository to verify the API contract. Let me look for the specific function signatures.
Based on my web search for the magicblock-delegation-program repository, I was unable to access the specific source code details needed to verify the API contract. The searches returned the repository index and documentation pages, but not the actual function signatures for
commit_state_from_buffer,commit_diff_from_buffer, or theCommitStateFromBufferArgsstruct definition.To properly verify the concerns raised in this review comment, you would need to:
- Review the delegation-program repository source code (specifically the instruction builders and args modules) to confirm that both
commit_state_from_bufferandcommit_diff_from_bufferaccept the sameCommitStateFromBufferArgsstruct- Examine the on-chain processor implementations to verify that buffer contents are interpreted consistently as either full state or diff bytes, matching how
BufferTask::preparation_requiredprepares them- Confirm the buffer PDA derivation uses the same parameters across all functions
The original concern about the API contract alignment is valid and warrants manual verification against the actual dlp crate implementation.
Verify that
commit_state_from_bufferandcommit_diff_from_bufferin the dlp crate both acceptCommitStateFromBufferArgs, and confirm the on-chain handlers interpret buffer contents consistently with howBufferTaskprepares them (lines 244-293 and related code).
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Actionable comments posted: 2
♻️ Duplicate comments (2)
magicblock-committor-service/src/tasks/mod.rs (2)
221-243: Reusecompute_diff()to avoid duplicate diff computation logic.The inline
compute_diffcall at lines 229-232 duplicates the logic already encapsulated inself.compute_diff(). Consider delegating to the method for consistency.Based on past review comments, apply this refactor to reuse the existing method:
fn create_commit_diff_ix( &self, validator: &Pubkey, base_account: &Account, ) -> Instruction { + let diff = self + .compute_diff() + .expect("base_account must be Some when using CommitDiff"); + let args = CommitDiffArgs { nonce: self.commit_id, lamports: self.committed_account.account.lamports, - diff: compute_diff( - base_account.data(), - self.committed_account.account.data(), - ) - .to_vec(), + diff: diff.to_vec(), allow_undelegation: self.allow_undelegation, }; dlp::instruction_builder::commit_diff( *validator, self.committed_account.pubkey, self.committed_account.account.owner, args, ) }
563-587: Add test coverage for buffer instruction builders.The
test_buffer_task_instruction_serializationtest constructsCommitTaskviaCommitTaskBuilder::create_commit_task(), which defaults toTaskStrategy::Args. Since the test never callsswitch_to_buffer_strategy(), it never exercises the newcreate_commit_state_from_buffer_ixandcreate_commit_diff_from_buffer_ixpaths.Based on past review comments, update the test to cover buffer paths:
#[tokio::test] async fn test_buffer_task_instruction_serialization() { let validator = Pubkey::new_unique(); + // Test with buffer strategy to exercise buffer instruction builders let buffer_task = BufferTask::new_preparation_required(BufferTaskType::Commit( CommitTaskBuilder::create_commit_task( 456, false, CommittedAccount { pubkey: Pubkey::new_unique(), account: Account { lamports: 2000, data: vec![7, 8, 9], owner: Pubkey::new_unique(), executable: false, rent_epoch: 0, }, }, &Arc::new(NullTaskInfoFetcher), ) - .await, + .await + .switch_to_buffer_strategy(), )); assert_serializable(&buffer_task.instruction(&validator)); }
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📒 Files selected for processing (4)
magicblock-committor-service/src/tasks/args_task.rs(1 hunks)magicblock-committor-service/src/tasks/buffer_task.rs(2 hunks)magicblock-committor-service/src/tasks/mod.rs(5 hunks)test-integration/Cargo.toml(1 hunks)
🧰 Additional context used
🧠 Learnings (3)
📚 Learning: 2025-12-03T09:33:48.707Z
Learnt from: Dodecahedr0x
Repo: magicblock-labs/magicblock-validator PR: 639
File: test-integration/test-committor-service/tests/test_ix_commit_local.rs:867-881
Timestamp: 2025-12-03T09:33:48.707Z
Learning: Repo: magicblock-labs/magicblock-validator PR: 639
Context: test-integration/test-committor-service/tests/test_ix_commit_local.rs (ix_commit_local)
Learning: The PhotonIndexer used for compressed account fetches (get_compressed_account) has built‑in retry logic (defaults to ~10 attempts), so tests should not add separate retry loops around compressed fetches unless there’s a specific need.
Applied to files:
magicblock-committor-service/src/tasks/buffer_task.rsmagicblock-committor-service/src/tasks/mod.rs
📚 Learning: 2025-11-21T10:22:07.520Z
Learnt from: taco-paco
Repo: magicblock-labs/magicblock-validator PR: 661
File: magicblock-committor-service/src/intent_executor/single_stage_executor.rs:20-28
Timestamp: 2025-11-21T10:22:07.520Z
Learning: In magicblock-committor-service's SingleStageExecutor and TwoStageExecutor (single_stage_executor.rs and two_stage_executor.rs), the fields transaction_strategy, junk, and patched_errors are intentionally public because these executors are designed to be used independently outside of the IntentExecutor scope, and callers need access to these execution reports for cleanup and error handling.
Applied to files:
magicblock-committor-service/src/tasks/buffer_task.rsmagicblock-committor-service/src/tasks/mod.rs
📚 Learning: 2025-11-24T14:21:00.996Z
Learnt from: Dodecahedr0x
Repo: magicblock-labs/magicblock-validator PR: 639
File: Cargo.toml:58-58
Timestamp: 2025-11-24T14:21:00.996Z
Learning: In the magicblock-validator codebase, magicblock-api/Cargo.toml intentionally uses borsh = "1.5.3" (instead of the workspace version 0.10.4) because it needs to deserialize types from the magic-domain-program external dependency, which requires borsh 1.5.x compatibility. This is an intentional exception for interoperability with the magic domain program.
Applied to files:
test-integration/Cargo.toml
🧬 Code graph analysis (2)
magicblock-committor-service/src/tasks/buffer_task.rs (3)
magicblock-committor-program/src/state/chunks.rs (1)
from_data_length(46-49)magicblock-committor-service/src/tasks/args_task.rs (2)
value(162-169)optimize(92-105)magicblock-committor-service/src/tasks/mod.rs (1)
optimize(79-81)
magicblock-committor-service/src/tasks/mod.rs (1)
magicblock-committor-service/src/persist/types/commit_strategy.rs (1)
args(17-23)
🔇 Additional comments (9)
magicblock-committor-service/src/tasks/args_task.rs (1)
96-99: LGTM! Clean refactoring to use buffer strategy switching.The simplified logic correctly switches to buffer strategy before wrapping in
BufferTaskType::Commit, eliminating the need for special-case handling. This aligns with the PR objectives to support CommitDiff as a BufferTask without degrading to CommitState.magicblock-committor-service/src/tasks/buffer_task.rs (2)
49-61: LGTM! Diff-aware state computation correctly supports CommitDiff as BufferTask.The logic now computes diff when available and uses it for both chunking and buffer preparation, which directly addresses the PR objective of supporting CommitDiff as a BufferTask without degrading to CommitState.
Note: The main flow in
args_task.rsline 98 correctly callsswitch_to_buffer_strategy()before constructingBufferTask, ensuring the strategy is set properly.
69-69: LGTM! Unified instruction creation simplifies the code.Replacing manual PDA-based instruction assembly with
value.create_commit_ix(validator)delegates to theCommitTask's strategy-aware instruction creation, making the code cleaner and more maintainable.magicblock-committor-service/src/tasks/mod.rs (6)
4-4: LGTM! TaskStrategy is now unconditionally public to support the two-strategy architecture.Making
TaskStrategypublic enables the Args/Buffer strategy pattern throughout the codebase, which is essential for the new buffer-based commit flow.Also applies to: 56-60
155-155: LGTM! Strategy field replaces force_commit_state with explicit Args/Buffer control.The new
strategyfield provides clearer control over instruction generation compared to the previousforce_commit_stateflag, aligning with the PR's goal of supporting CommitDiff as a BufferTask.Also applies to: 165-167
170-173: LGTM! Strategy switching method provides clean transition to buffer path.The
switch_to_buffer_strategy()method enables explicit control over strategy transitions, used byArgsTask::optimize()to move commits to the buffer path.
175-194: LGTM! Strategy-aware instruction dispatch correctly routes Args vs Buffer paths.The branching on
self.strategywith nested checks forbase_accountensures the correct instruction builder is called for each combination (Args with diff/state, Buffer with diff/state from buffer).
197-204: LGTM! Centralized diff computation reduces code duplication.The
compute_diff()method provides a single point for diff computation logic, used byBufferTaskduring preparation. This is good for maintainability.
245-268: LGTM! Buffer-based commit state instruction correctly uses buffer PDA.The implementation properly derives the buffer PDA and constructs the instruction with
CommitStateFromBufferArgs, aligning with howPreparationTaskinitializes and writes buffer data.
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There was a problem hiding this comment.
Actionable comments posted: 3
♻️ Duplicate comments (1)
magicblock-committor-service/src/tasks/buffer_task.rs (1)
50-82: Verify CommitTask has Buffer strategy when constructing BufferTask.As noted in the past review comment, BufferTask construction should ensure the embedded CommitTask (or CommitDiffTask) has the correct strategy. While ArgsTask::optimize calls switch_to_buffer_strategy() before wrapping, other construction paths (including tests) might not. Consider adding a debug assertion or making this self-contained.
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⛔ Files ignored due to path filters (3)
Cargo.lockis excluded by!**/*.locktest-integration/Cargo.lockis excluded by!**/*.locktest-integration/schedulecommit/elfs/dlp.sois excluded by!**/*.so
📒 Files selected for processing (8)
Cargo.toml(1 hunks)magicblock-committor-service/src/tasks/args_task.rs(1 hunks)magicblock-committor-service/src/tasks/buffer_task.rs(7 hunks)magicblock-committor-service/src/tasks/mod.rs(0 hunks)magicblock-committor-service/src/tasks/task_visitors/persistor_visitor.rs(2 hunks)magicblock-committor-service/src/tasks/task_visitors/utility_visitor.rs(1 hunks)test-integration/Cargo.toml(1 hunks)test-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs(1 hunks)
💤 Files with no reviewable changes (1)
- magicblock-committor-service/src/tasks/mod.rs
🧰 Additional context used
🧠 Learnings (7)
📚 Learning: 2025-12-03T09:33:48.707Z
Learnt from: Dodecahedr0x
Repo: magicblock-labs/magicblock-validator PR: 639
File: test-integration/test-committor-service/tests/test_ix_commit_local.rs:867-881
Timestamp: 2025-12-03T09:33:48.707Z
Learning: Repo: magicblock-labs/magicblock-validator PR: 639
Context: test-integration/test-committor-service/tests/test_ix_commit_local.rs (ix_commit_local)
Learning: The PhotonIndexer used for compressed account fetches (get_compressed_account) has built‑in retry logic (defaults to ~10 attempts), so tests should not add separate retry loops around compressed fetches unless there’s a specific need.
Applied to files:
test-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs
📚 Learning: 2025-11-24T14:21:00.996Z
Learnt from: Dodecahedr0x
Repo: magicblock-labs/magicblock-validator PR: 639
File: Cargo.toml:58-58
Timestamp: 2025-11-24T14:21:00.996Z
Learning: In the magicblock-validator codebase, magicblock-api/Cargo.toml intentionally uses borsh = "1.5.3" (instead of the workspace version 0.10.4) because it needs to deserialize types from the magic-domain-program external dependency, which requires borsh 1.5.x compatibility. This is an intentional exception for interoperability with the magic domain program.
Applied to files:
Cargo.tomltest-integration/Cargo.toml
📚 Learning: 2025-10-26T16:54:39.084Z
Learnt from: thlorenz
Repo: magicblock-labs/magicblock-validator PR: 587
File: test-manual/Cargo.toml:0-0
Timestamp: 2025-10-26T16:54:39.084Z
Learning: In the magicblock-validator repository, use git branch references (not commit hashes or tags) for the helius-laserstream dependency to allow automatic updates when the branch is pushed to.
Applied to files:
Cargo.tomltest-integration/Cargo.toml
📚 Learning: 2025-11-21T10:22:07.520Z
Learnt from: taco-paco
Repo: magicblock-labs/magicblock-validator PR: 661
File: magicblock-committor-service/src/intent_executor/single_stage_executor.rs:20-28
Timestamp: 2025-11-21T10:22:07.520Z
Learning: In magicblock-committor-service's SingleStageExecutor and TwoStageExecutor (single_stage_executor.rs and two_stage_executor.rs), the fields transaction_strategy, junk, and patched_errors are intentionally public because these executors are designed to be used independently outside of the IntentExecutor scope, and callers need access to these execution reports for cleanup and error handling.
Applied to files:
magicblock-committor-service/src/tasks/task_visitors/persistor_visitor.rs
📚 Learning: 2025-11-20T08:57:07.217Z
Learnt from: thlorenz
Repo: magicblock-labs/magicblock-validator PR: 650
File: magicblock-chainlink/src/submux/subscription_task.rs:13-99
Timestamp: 2025-11-20T08:57:07.217Z
Learning: In the magicblock-validator repository, avoid posting review comments that merely confirm code is correct or matches intended behavior without providing actionable feedback, suggestions for improvement, or identifying potential issues. Such confirmatory comments are considered unhelpful noise by the maintainers.
Applied to files:
test-integration/Cargo.toml
📚 Learning: 2025-11-21T11:03:26.756Z
Learnt from: thlorenz
Repo: magicblock-labs/magicblock-validator PR: 664
File: magicblock-chainlink/src/testing/mod.rs:342-370
Timestamp: 2025-11-21T11:03:26.756Z
Learning: In the magicblock-validator codebase, avoid leaving review comments that merely acknowledge code is correct or well-structured when there is no actionable suggestion, improvement, or issue to flag. Only comment when there is something specific to recommend, fix, or clarify.
Applied to files:
test-integration/Cargo.toml
📚 Learning: 2025-10-26T08:49:31.543Z
Learnt from: taco-paco
Repo: magicblock-labs/magicblock-validator PR: 585
File: magicblock-committor-service/src/tasks/buffer_task.rs:111-115
Timestamp: 2025-10-26T08:49:31.543Z
Learning: In the magicblock-committor-service, compute units returned by the `compute_units()` method in task implementations (such as `BufferTask`, `ArgsTask`, etc.) represent the compute budget for a single task. Transactions can comprise multiple tasks, and the total compute budget for a transaction is computed as the sum of the compute units of all tasks included in that transaction.
Applied to files:
magicblock-committor-service/src/tasks/buffer_task.rs
🧬 Code graph analysis (2)
magicblock-committor-service/src/tasks/args_task.rs (1)
magicblock-committor-service/src/tasks/buffer_task.rs (1)
value(203-208)
magicblock-committor-service/src/tasks/task_visitors/utility_visitor.rs (2)
magicblock-committor-service/src/tasks/task_visitors/persistor_visitor.rs (1)
visit_buffer_task(68-107)magicblock-committor-service/src/tasks/visitor.rs (1)
visit_buffer_task(5-5)
🔇 Additional comments (7)
test-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs (1)
306-312: LGTM: Expanded test data range enhances coverage for CommitDiff scenarios.The increase from 5..10 to 5..100 for both bids and asks provides better coverage of varying data sizes and diff complexities, which is valuable for exercising the new CommitDiff buffer path introduced in this PR.
Cargo.toml (1)
98-100: Dependency update supports the new CommitDiffFromBuffer instruction.The revision update to ea1f2f916268132248fe8d5de5f07d76765dd937 aligns with the delegation-program PR #118 mentioned in the PR description, which implements the CommitDiffFromBuffer instruction required by this feature.
magicblock-committor-service/src/tasks/args_task.rs (1)
134-138: LGTM: CommitDiff now optimizes to BufferTaskType::CommitDiff instead of degrading to Commit.This change implements the core PR objective: CommitDiff is now executed as a BufferTask directly, avoiding the previous degradation to CommitState. The optimization path correctly wraps the CommitDiffTask in BufferTaskType::CommitDiff.
magicblock-committor-service/src/tasks/task_visitors/utility_visitor.rs (2)
22-36: LGTM: Explicit pattern matching ensures CommitMeta extraction for both Commit and CommitDiff.The refactor from conditional logic to explicit pattern matching correctly handles both CommitDiff and Commit variants, ensuring commit metadata is properly extracted for both task types.
42-55: LGTM: BufferTask visitor properly handles both Commit and CommitDiff variants.Consistent with the ArgsTask visitor changes, this correctly extracts commit metadata for both Commit and CommitDiff buffer tasks.
magicblock-committor-service/src/tasks/buffer_task.rs (2)
109-129: LGTM: CommitDiff instruction handling mirrors Commit path with commit_diff_from_buffer.The instruction construction for CommitDiff correctly:
- Derives the same buffer PDA as the Commit path
- Uses commit_diff_from_buffer instead of commit_state_from_buffer
- Passes identical CommitStateFromBufferArgs structure
This maintains consistency with the preparation and buffer writing logic.
183-196: LGTM: reset_commit_id properly handles both Commit and CommitDiff variants.The implementation correctly updates the commit_id field for both task variants and triggers re-preparation by calling preparation_required. The early return optimization when the commit_id hasn't changed is a nice touch.
magicblock-committor-service/src/tasks/task_visitors/persistor_visitor.rs
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♻️ Duplicate comments (1)
magicblock-committor-service/src/tasks/buffer_task.rs (1)
67-82: CRITICAL: compute_diff argument order is reversed.The
compute_diffcall in buffer_task.rs (lines 68-70) has arguments in the opposite order compared to the original implementation in args_task.rs:
- buffer_task.rs:
compute_diff(&task.committed_account.account.data, &task.base_account.data)→ (committed, base)- args_task.rs:
compute_diff(value.base_account.data(), value.committed_account.account.data())→ (base, committed)The correct order is (base, committed) to compute what changed from the base state to the committed state. This inconsistency will produce inverted diffs, leading to incorrect commit operations.
BufferTaskType::CommitDiff(task) => { let diff = compute_diff( - &task.committed_account.account.data, - &task.base_account.data, + &task.base_account.data, + &task.committed_account.account.data, ) .to_vec();
🧹 Nitpick comments (1)
magicblock-committor-service/src/tasks/buffer_task.rs (1)
100-143: Consider refactoring to reduce code duplication.The
CommitandCommitDiffbranches have identical logic except for the final instruction builder call (commit_state_from_buffervscommit_diff_from_buffer). Consider extracting the common logic to reduce duplication.🔎 Example refactoring approach
fn instruction(&self, validator: &Pubkey) -> Instruction { - match &self.task_type { - BufferTaskType::Commit(task) => { - let commit_id_slice = task.commit_id.to_le_bytes(); - let (commit_buffer_pubkey, _) = - magicblock_committor_program::pdas::buffer_pda( - validator, - &task.committed_account.pubkey, - &commit_id_slice, - ); - - dlp::instruction_builder::commit_state_from_buffer( - *validator, - task.committed_account.pubkey, - task.committed_account.account.owner, - commit_buffer_pubkey, - CommitStateFromBufferArgs { - nonce: task.commit_id, - lamports: task.committed_account.account.lamports, - allow_undelegation: task.allow_undelegation, - }, - ) - } - BufferTaskType::CommitDiff(task) => { - let commit_id_slice = task.commit_id.to_le_bytes(); - let (commit_buffer_pubkey, _) = - magicblock_committor_program::pdas::buffer_pda( - validator, - &task.committed_account.pubkey, - &commit_id_slice, - ); - - dlp::instruction_builder::commit_diff_from_buffer( - *validator, - task.committed_account.pubkey, - task.committed_account.account.owner, - commit_buffer_pubkey, - CommitStateFromBufferArgs { - nonce: task.commit_id, - lamports: task.committed_account.account.lamports, - allow_undelegation: task.allow_undelegation, - }, - ) - } + let (task_commit_id, task_pubkey, task_owner, task_lamports, task_allow_undelegation, is_diff) = match &self.task_type { + BufferTaskType::Commit(task) => ( + task.commit_id, + task.committed_account.pubkey, + task.committed_account.account.owner, + task.committed_account.account.lamports, + task.allow_undelegation, + false, + ), + BufferTaskType::CommitDiff(task) => ( + task.commit_id, + task.committed_account.pubkey, + task.committed_account.account.owner, + task.committed_account.account.lamports, + task.allow_undelegation, + true, + ), + }; + + let commit_id_slice = task_commit_id.to_le_bytes(); + let (commit_buffer_pubkey, _) = magicblock_committor_program::pdas::buffer_pda( + validator, + &task_pubkey, + &commit_id_slice, + ); + + let args = CommitStateFromBufferArgs { + nonce: task_commit_id, + lamports: task_lamports, + allow_undelegation: task_allow_undelegation, + }; + + if is_diff { + dlp::instruction_builder::commit_diff_from_buffer( + *validator, + task_pubkey, + task_owner, + commit_buffer_pubkey, + args, + ) + } else { + dlp::instruction_builder::commit_state_from_buffer( + *validator, + task_pubkey, + task_owner, + commit_buffer_pubkey, + args, + ) } }
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magicblock-committor-service/src/tasks/args_task.rsmagicblock-committor-service/src/tasks/buffer_task.rsmagicblock-committor-service/src/tasks/mod.rsmagicblock-committor-service/src/tasks/task_visitors/persistor_visitor.rsmagicblock-committor-service/src/tasks/task_visitors/utility_visitor.rstest-integration/Cargo.tomltest-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs
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- magicblock-committor-service/src/tasks/mod.rs
🚧 Files skipped from review as they are similar to previous changes (3)
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🧠 Learnings (3)
📚 Learning: 2025-12-03T09:33:48.707Z
Learnt from: Dodecahedr0x
Repo: magicblock-labs/magicblock-validator PR: 639
File: test-integration/test-committor-service/tests/test_ix_commit_local.rs:867-881
Timestamp: 2025-12-03T09:33:48.707Z
Learning: Repo: magicblock-labs/magicblock-validator PR: 639
Context: test-integration/test-committor-service/tests/test_ix_commit_local.rs (ix_commit_local)
Learning: The PhotonIndexer used for compressed account fetches (get_compressed_account) has built‑in retry logic (defaults to ~10 attempts), so tests should not add separate retry loops around compressed fetches unless there’s a specific need.
Applied to files:
test-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs
📚 Learning: 2025-10-14T09:56:14.047Z
Learnt from: taco-paco
Repo: magicblock-labs/magicblock-validator PR: 564
File: test-integration/programs/flexi-counter/src/processor/call_handler.rs:122-125
Timestamp: 2025-10-14T09:56:14.047Z
Learning: The file test-integration/programs/flexi-counter/src/processor/call_handler.rs contains a test smart contract used for integration testing, not production code.
Applied to files:
test-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs
📚 Learning: 2025-10-26T08:49:31.543Z
Learnt from: taco-paco
Repo: magicblock-labs/magicblock-validator PR: 585
File: magicblock-committor-service/src/tasks/buffer_task.rs:111-115
Timestamp: 2025-10-26T08:49:31.543Z
Learning: In the magicblock-committor-service, compute units returned by the `compute_units()` method in task implementations (such as `BufferTask`, `ArgsTask`, etc.) represent the compute budget for a single task. Transactions can comprise multiple tasks, and the total compute budget for a transaction is computed as the sum of the compute units of all tasks included in that transaction.
Applied to files:
magicblock-committor-service/src/tasks/buffer_task.rs
🧬 Code graph analysis (3)
test-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs (1)
test-integration/test-committor-service/tests/test_ix_commit_local.rs (3)
map(455-455)map(470-470)map(480-480)
magicblock-committor-service/src/tasks/buffer_task.rs (2)
magicblock-committor-service/src/tasks/args_task.rs (2)
task_type(177-185)optimize(125-143)magicblock-committor-program/src/state/chunks.rs (1)
from_data_length(48-51)
magicblock-committor-service/src/tasks/task_visitors/utility_visitor.rs (2)
magicblock-committor-service/src/tasks/task_visitors/persistor_visitor.rs (1)
visit_buffer_task(68-107)magicblock-committor-service/src/tasks/visitor.rs (1)
visit_buffer_task(5-5)
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🔇 Additional comments (9)
test-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs (1)
306-312: Test data expansion appropriately stresses the BufferTask CommitDiff implementation.The expanded ranges for order book entries (from
5..10to5..100) increase test coverage from ~20 to ~200 total entries per test run. The seed-based reproducibility mechanism ensures deterministic failure investigation. Existing transaction confirmation retry logic (40 attempts over ~20 seconds) adequately handles the increased data volume.⛔ Skipped due to learnings
Learnt from: Dodecahedr0x Repo: magicblock-labs/magicblock-validator PR: 639 File: test-integration/test-committor-service/tests/test_ix_commit_local.rs:867-881 Timestamp: 2025-12-03T09:33:48.707Z Learning: Repo: magicblock-labs/magicblock-validator PR: 639 Context: test-integration/test-committor-service/tests/test_ix_commit_local.rs (ix_commit_local) Learning: The PhotonIndexer used for compressed account fetches (get_compressed_account) has built‑in retry logic (defaults to ~10 attempts), so tests should not add separate retry loops around compressed fetches unless there’s a specific need.magicblock-committor-service/src/tasks/buffer_task.rs (6)
1-1: LGTM!The
compute_diffimport is necessary for computing diffs in the CommitDiff path.
24-24: LGTM!The addition of the
CommitDiffvariant follows the existing pattern and enables CommitDiff to be executed as a BufferTask.
172-176: LGTM!The compute units for
CommitDiffmatchCommitat 70,000, which is reasonable since both operations involve similar buffer-based commitment logic.
183-188: LGTM!Mapping
CommitDifftoTaskType::Commitis correct and consistent with theargs_task.rsimplementation.
196-212: LGTM!The
reset_commit_idimplementation correctly handles bothCommitandCommitDiffvariants, ensuring the commit_id is updated and preparation state is recalculated.
215-222: LGTM!The distinct label value
"buffer_commit_diff"forCommitDiffenables proper differentiation in metrics and observability, which is valuable for monitoring the new commit path.magicblock-committor-service/src/tasks/task_visitors/utility_visitor.rs (2)
19-37: LGTM!The match statement correctly handles both
CommitandCommitDiffvariants for extractingCommitMeta. The identical logic for both variants could be simplified using a guard pattern, but the current implementation is clear and maintainable.💡 Optional: Simplify using match guards
If you want to reduce duplication, consider:
match &task.task_type { ArgsTaskType::Commit(task) | ArgsTaskType::CommitDiff(task) => { *commit_meta = Some(CommitMeta { committed_pubkey: task.committed_account.pubkey, commit_id: task.commit_id, }) } _ => *commit_meta = None, }However, this requires that both
CommitTaskandCommitDiffTaskhave identical field structures forcommitted_accountandcommit_id.
39-56: LGTM!The match statement correctly handles both
CommitandCommitDiffvariants forBufferTask, maintaining consistency with thevisit_args_taskimplementation.
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Actionable comments posted: 0
♻️ Duplicate comments (2)
magicblock-committor-service/src/tasks/task_visitors/persistor_visitor.rs (2)
35-63: Duplication already flagged in previous review.The duplicated error handling logic between
CommitandCommitDiffvariants was already identified in a previous review. Please address the earlier suggestion to extract the shared persist-and-log logic into a helper method.
77-104: Duplication already flagged in previous review.The duplicated error handling pattern here mirrors the same issue in
visit_args_task. Both were identified in previous reviews and can benefit from the same helper function extraction.
🧹 Nitpick comments (1)
magicblock-committor-service/src/tasks/buffer_task.rs (1)
93-95: Update panic message to reflect CommitDiff support.The panic message states "Only commit task can be BufferTask currently," but now both
CommitandCommitDiffare supported. Consider updating for clarity.🔎 Suggested message update
- _ => unimplemented!( - "Only commit task can be BufferTask currently. Fix your tests" - ), + _ => unimplemented!( + "Only Commit and CommitDiff tasks can be BufferTask. Fix your tests" + ),
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📒 Files selected for processing (7)
magicblock-committor-service/src/tasks/args_task.rsmagicblock-committor-service/src/tasks/buffer_task.rsmagicblock-committor-service/src/tasks/mod.rsmagicblock-committor-service/src/tasks/task_visitors/persistor_visitor.rsmagicblock-committor-service/src/tasks/task_visitors/utility_visitor.rstest-integration/Cargo.tomltest-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs
💤 Files with no reviewable changes (1)
- magicblock-committor-service/src/tasks/mod.rs
🚧 Files skipped from review as they are similar to previous changes (3)
- test-integration/schedulecommit/test-scenarios/tests/02_commit_and_undelegate.rs
- magicblock-committor-service/src/tasks/task_visitors/utility_visitor.rs
- test-integration/Cargo.toml
🧰 Additional context used
🧠 Learnings (3)
📚 Learning: 2025-10-26T08:49:31.543Z
Learnt from: taco-paco
Repo: magicblock-labs/magicblock-validator PR: 585
File: magicblock-committor-service/src/tasks/buffer_task.rs:111-115
Timestamp: 2025-10-26T08:49:31.543Z
Learning: In the magicblock-committor-service, compute units returned by the `compute_units()` method in task implementations (such as `BufferTask`, `ArgsTask`, etc.) represent the compute budget for a single task. Transactions can comprise multiple tasks, and the total compute budget for a transaction is computed as the sum of the compute units of all tasks included in that transaction.
Applied to files:
magicblock-committor-service/src/tasks/buffer_task.rs
📚 Learning: 2025-11-21T10:22:07.520Z
Learnt from: taco-paco
Repo: magicblock-labs/magicblock-validator PR: 661
File: magicblock-committor-service/src/intent_executor/single_stage_executor.rs:20-28
Timestamp: 2025-11-21T10:22:07.520Z
Learning: In magicblock-committor-service's SingleStageExecutor and TwoStageExecutor (single_stage_executor.rs and two_stage_executor.rs), the fields transaction_strategy, junk, and patched_errors are intentionally public because these executors are designed to be used independently outside of the IntentExecutor scope, and callers need access to these execution reports for cleanup and error handling.
Applied to files:
magicblock-committor-service/src/tasks/task_visitors/persistor_visitor.rs
📚 Learning: 2025-12-03T09:33:48.707Z
Learnt from: Dodecahedr0x
Repo: magicblock-labs/magicblock-validator PR: 639
File: test-integration/test-committor-service/tests/test_ix_commit_local.rs:867-881
Timestamp: 2025-12-03T09:33:48.707Z
Learning: Repo: magicblock-labs/magicblock-validator PR: 639
Context: test-integration/test-committor-service/tests/test_ix_commit_local.rs (ix_commit_local)
Learning: The PhotonIndexer used for compressed account fetches (get_compressed_account) has built‑in retry logic (defaults to ~10 attempts), so tests should not add separate retry loops around compressed fetches unless there’s a specific need.
Applied to files:
magicblock-committor-service/src/tasks/task_visitors/persistor_visitor.rs
🧬 Code graph analysis (1)
magicblock-committor-service/src/tasks/args_task.rs (1)
magicblock-committor-service/src/tasks/buffer_task.rs (1)
value(216-221)
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🔇 Additional comments (5)
magicblock-committor-service/src/tasks/args_task.rs (1)
134-137: LGTM! Correctly implements direct CommitDiff optimization.The change properly implements the PR objective by emitting
BufferTaskType::CommitDiff(value)directly instead of degrading toCommitTask. This aligns with the newCommitDiffvariant support added inbuffer_task.rs.magicblock-committor-service/src/tasks/buffer_task.rs (4)
52-84: LGTM! Preparation logic correctly handles both Commit and CommitDiff.The preparation logic appropriately:
- Uses full account data and creates chunks based on data length for
Commit- Computes diff (with correct argument order) and creates chunks based on diff length for
CommitDiffBoth paths correctly set
committed_datato what will be written to the buffer.
100-145: LGTM! Instruction generation correctly handles both variants.The implementation properly:
- Uses
commit_state_from_bufferforCommittasks- Uses
commit_diff_from_bufferforCommitDifftasks- Both share the same args structure (
CommitStateFromBufferArgs), with the instruction type determining how the buffer contents are interpreted on-chainThis aligns with the related delegation-program PR #118 that implements the
CommitDiffFromBufferinstruction.
171-187: LGTM! Compute units and task type mappings are consistent.The
CommitDiffvariant correctly:
- Uses the same compute units (70,000) as
Commit, which is appropriate given similar on-chain processing- Maps to
TaskType::Commit, maintaining consistency with theCommitvariant
195-221: LGTM! Reset and labeling logic correctly updated.The implementation properly:
- Handles
reset_commit_idfor bothCommitandCommitDiffvariants with early returns for unchanged IDs- Re-derives preparation state after commit_id changes
- Provides consistent label naming: "buffer_commit_diff" follows the established pattern
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Problem
The previous PR #575 in this stack implements support for
CommitDiffthat executes asArgsTask. When the transaction size grows beyond the limit,CommitDifffirst degrades toCommitStateand then gets executed asBufferTaskto reduce the transaction size.Degration of
CommitDifftoCommitStateis not a desirable thing.Solution
So this PR implements support for
CommitDiffasBufferTask. Means degradation ofCommitDifftoCommitStateis not required anymore.Related
Another PR magicblock-labs/delegation-program#118 that implements
CommitDiffFromBufferinstruction, is created in the delegation-program.Screenshot
Summary by CodeRabbit
New Features
Refactor
Tests
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