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UI improvements #1475

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UI improvements #1475

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  • Stripped lelantus Ui
  • improved performance on big wallets

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coderabbitai bot commented Aug 15, 2024

Walkthrough

The changes introduce enhancements to the ClientModel, SparkModel, and TransactionTableModel classes, focusing on improved locking mechanisms and caching strategies. New member variables for caching block data and mintable amounts have been added. The locking approach has shifted from blocking to non-blocking attempts, allowing for early returns if locks cannot be acquired. This aims to enhance performance and responsiveness in multi-threaded scenarios without altering existing method signatures or overall class structures.

Changes

Files Change Summary
src/qt/clientmodel.cpp Added cachedNumBlocks and cachedLastBlockDate. Updated locking to TRY_LOCK in multiple methods.
src/qt/clientmodel.h Added mutable std::atomic<int> cachedNumBlocks; and mutable QDateTime cachedLastBlockDate;.
src/qt/sparkmodel.cpp Updated getMintableSparkAmount to use TRY_LOCK. Returns cached amount if locks cannot be acquired.
src/qt/sparkmodel.h Added mutable std::atomic<CAmount> cachedMintableSparkAmount;.
src/qt/transactiontablemodel.cpp Added cachedUpdatedTx. Updated methods to use TRY_LOCK for wallet transactions.
src/qt/transactiontablemodel.h Added #include "uint256.h" for transaction handling.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant ClientModel
    participant SparkModel
    participant TransactionTableModel

    User->>ClientModel: Request block data
    ClientModel->>ClientModel: TRY_LOCK for access
    alt Lock acquired
        ClientModel-->>User: Provide cachedNumBlocks
    else Lock not acquired
        ClientModel-->>User: Return cached value
    end

    User->>SparkModel: Request mintable amount
    SparkModel->>SparkModel: TRY_LOCK for wallet access
    alt Lock acquired
        SparkModel-->>User: Provide cachedMintableSparkAmount
    else Lock not acquired
        SparkModel-->>User: Return cached value
    end

    User->>TransactionTableModel: Request transaction updates
    TransactionTableModel->>TransactionTableModel: TRY_LOCK for wallet transactions
    alt Lock acquired
        TransactionTableModel-->>User: Provide transaction updates
    else Lock not acquired
        TransactionTableModel-->>User: Return queued updates
    end
Loading

🐇 "In the garden where data flows,
New caches sprout where the block chain grows.
With locks that try, and values that stay,
Our models dance in a seamless ballet.
Hoppity hop, let the threads intertwine,
A swift little rabbit, oh how we shine!" 🐇

Suggested labels

GUI


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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between c0ddba2 and 8bcf65f.

Files selected for processing (21)
  • src/Makefile.qt.include (8 hunks)
  • src/qt/automintdialog.cpp (1 hunks)
  • src/qt/automintdialog.h (1 hunks)
  • src/qt/automintmodel.cpp (2 hunks)
  • src/qt/automintmodel.h (2 hunks)
  • src/qt/automintnotification.cpp (1 hunks)
  • src/qt/automintnotification.h (2 hunks)
  • src/qt/bitcoingui.cpp (6 hunks)
  • src/qt/bitcoingui.h (3 hunks)
  • src/qt/overviewpage.cpp (6 hunks)
  • src/qt/sendcoinsdialog.cpp (11 hunks)
  • src/qt/transactionrecord.cpp (1 hunks)
  • src/qt/transactiontablemodel.cpp (1 hunks)
  • src/qt/transactionview.cpp (6 hunks)
  • src/qt/transactionview.h (2 hunks)
  • src/qt/walletframe.cpp (1 hunks)
  • src/qt/walletframe.h (1 hunks)
  • src/qt/walletmodel.cpp (10 hunks)
  • src/qt/walletmodel.h (5 hunks)
  • src/qt/walletview.cpp (12 hunks)
  • src/qt/walletview.h (5 hunks)
Files skipped from review due to trivial changes (3)
  • src/qt/bitcoingui.cpp
  • src/qt/bitcoingui.h
  • src/qt/walletview.cpp
Additional comments not posted (45)
src/qt/automintnotification.h (2)

12-14: Ensure UI pointer is correctly managed.

The ui pointer is initialized in the constructor and deleted in the destructor. Ensure that no other parts of the code attempt to delete or manage this pointer to avoid double deletion.

Verification successful

UI pointer management is correct.

The ui pointer in AutomintSparkNotification is properly managed within its class, with no indications of external management or deletion that could lead to double deletion issues.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify that the `ui` pointer is not managed elsewhere in the codebase.

# Test: Search for the `ui` pointer usage. Expect: No deletion or management outside the class.
rg --type cpp 'delete ui'

Length of output: 949


Line range hint 16-18: Verify signal-slot connections for correctness.

The ackMintSparkAll signal is connected in the setModel method. Ensure that the signal is correctly connected and used elsewhere in the codebase.

Verification successful

Signal-slot connections are correctly implemented.

The ackMintSparkAll signal is properly connected to the AutoMintSparkModel::ackMintSparkAll slot in automintnotification.cpp. The signal is emitted in various scenarios, and the connection management in sparkmodel.cpp appears correct. No issues found.

  • Signal Definition and Connection:

    • src/qt/automintnotification.h: Signal defined.
    • src/qt/automintnotification.cpp: Signal connected to AutoMintSparkModel.
  • Signal Emissions:

    • src/qt/automintnotification.cpp: Signal emitted in multiple scenarios.
  • Connection Management:

    • src/qt/sparkmodel.cpp: Signal connected and disconnected properly.
Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the usage of `ackMintSparkAll` signal.

# Test: Search for the signal usage and connections. Expect: Correct connections and usage.
rg --type cpp 'ackMintSparkAll'

Length of output: 1241

src/qt/automintdialog.h (2)

Line range hint 18-20: Ensure UI pointer is correctly managed.

The ui pointer is initialized in the constructor and deleted in the destructor. Ensure that no other parts of the code attempt to delete or manage this pointer to avoid double deletion.

Verification successful

UI Pointer Management Verified: The ui pointer in the AutoMintSparkDialog class is correctly managed, with no evidence of external deletion or management outside the class.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify that the `ui` pointer is not managed elsewhere in the codebase.

# Test: Search for the `ui` pointer usage. Expect: No deletion or management outside the class.
rg --type cpp 'delete ui'

Length of output: 949


Line range hint 22-24: Check paint event handling for performance.

The paintEvent method is overridden. Ensure that the painting logic is efficient and does not negatively impact performance, especially for users with large wallets.

Verification successful

Efficient paintEvent Implementation Verified: The paintEvent method in AutoMintSparkDialog is implemented efficiently. It conditionally draws text only when necessary and uses standard practices like calling the base class's paintEvent. No performance issues are apparent.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the implementation of the `paintEvent` method for performance concerns.

# Test: Search for the `paintEvent` implementation. Expect: Efficient painting logic.
rg --type cpp 'void AutoMintSparkDialog::paintEvent'

Length of output: 137


Script:

#!/bin/bash
# Extract the implementation of the `paintEvent` method in `AutoMintSparkDialog` to review its logic.
ast-grep --lang cpp --pattern $'void AutoMintSparkDialog::paintEvent(QPaintEvent *event) {
  $$$
}' 

Length of output: 100


Script:

#!/bin/bash
# Use `rg` to search for the `paintEvent` method implementation and include context lines for clarity.
rg --type cpp 'void AutoMintSparkDialog::paintEvent' -A 20

Length of output: 1267

src/qt/automintnotification.cpp (2)

Line range hint 6-14: Ensure UI pointer is correctly managed.

The ui pointer is initialized in the constructor and deleted in the destructor. Ensure that no other parts of the code attempt to delete or manage this pointer to avoid double deletion.

Verification successful

UI Pointer Management Verified

The ui pointer in the AutomintSparkNotification class is correctly managed within the class itself. The delete ui statement is present in the expected file, ensuring no external management or risk of double deletion.

  • src/qt/automintnotification.cpp: Correctly deletes ui in the destructor.
Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify that the `ui` pointer is not managed elsewhere in the codebase.

# Test: Search for the `ui` pointer usage. Expect: No deletion or management outside the class.
rg --type cpp 'delete ui'

Length of output: 949


Line range hint 16-26: Verify signal-slot connections for correctness.

The ackMintSparkAll signal is connected in the setModel method. Ensure that the signal is correctly connected and used elsewhere in the codebase.

Verification successful

Signal-Slot Connections Verified: ackMintSparkAll Signal is Correctly Connected and Used

The ackMintSparkAll signal is properly connected to the AutoMintSparkModel::ackMintSparkAll slot in both src/qt/sparkmodel.cpp and src/qt/automintnotification.cpp. The signal is emitted in src/qt/automintnotification.cpp, confirming its intended usage. Connections and disconnections in src/qt/sparkmodel.cpp show proper lifecycle management. No issues found.

  • Files Involved:
    • src/qt/sparkmodel.cpp
    • src/qt/automintnotification.cpp
    • src/qt/automintmodel.h
    • src/qt/sparkmodel.h
Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the usage of `ackMintSparkAll` signal.

# Test: Search for the signal usage and connections. Expect: Correct connections and usage.
rg --type cpp 'ackMintSparkAll'

Length of output: 1241

src/qt/automintmodel.h (1)

Line range hint 1-1:
Verify the impact of removing AutoMintModel and related enums.

The removal of the AutoMintModel class and its enumerations (AutoMintState, AutoMintAck) indicates a significant change in functionality. Ensure that all dependencies on these components are resolved in the rest of the codebase.

Verification successful

No Impact on Other Parts of the Codebase

The removal of AutoMintModel and its related enums (AutoMintState, AutoMintAck) does not affect other parts of the codebase. There are no lingering dependencies or references in comments, documentation, or other files. The changes are isolated to src/qt/automintmodel.h.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the impact of removing `AutoMintModel` and related enums.

# Test: Search for references to `AutoMintModel`, `AutoMintState`, and `AutoMintAck`. Expect: No occurrences.
rg --type cpp 'AutoMintModel|AutoMintState|AutoMintAck'

Length of output: 57


Script:

#!/bin/bash
# Description: Search for documentation or comments referencing `AutoMintModel`, `AutoMintState`, and `AutoMintAck`.

# Test: Search for mentions in comments or documentation files.
rg --type md --type txt 'AutoMintModel|AutoMintState|AutoMintAck'
rg --type cpp --type h '//.*AutoMintModel|//.*AutoMintState|//.*AutoMintAck'

Length of output: 146


Script:

#!/bin/bash
# Description: Check for related files that might have been modified.

# Test: List recent commits to see if there are related changes.
git log --name-only --oneline | grep -E 'src/qt/automintmodel.h|AutoMintModel|AutoMintState|AutoMintAck'

Length of output: 152

src/qt/walletframe.h (1)

Line range hint 1-1:
Verify the impact of removing gotoLelantusPage().

The removal of the gotoLelantusPage() slot suggests that navigation to the Lelantus page is no longer supported. Ensure that all references to this function are removed or handled appropriately in the codebase.

Verification successful

No references to gotoLelantusPage() found. The removal of this function does not appear to impact other parts of the codebase, as no references were detected in the repository.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the impact of removing `gotoLelantusPage()`.

# Test: Search for references to `gotoLelantusPage`. Expect: No occurrences.
rg --type cpp 'gotoLelantusPage'

Length of output: 32


Script:

#!/bin/bash
# Expanded search for references to `gotoLelantusPage` across the entire repository.
rg 'gotoLelantusPage'

Length of output: 21

src/qt/transactionview.h (1)

Line range hint 1-1:
Verify the impact of removing BIP47 transaction handling.

The removal of reconsiderBip47TxAction and reconsiderBip47Tx() suggests that BIP47 transaction reconsideration is no longer supported. Ensure that all references to these elements are removed or handled appropriately in the codebase.

Verification successful

No references to reconsiderBip47TxAction or reconsiderBip47Tx found. The search did not return any occurrences of these elements, indicating that they have been successfully removed from the codebase. This suggests that the removal of BIP47 transaction handling has been properly executed.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the impact of removing BIP47 transaction handling.

# Test: Search for references to `reconsiderBip47TxAction` and `reconsiderBip47Tx`. Expect: No occurrences.
rg --type cpp 'reconsiderBip47TxAction|reconsiderBip47Tx'

Length of output: 59


Script:

#!/bin/bash
# Re-run the search for references to `reconsiderBip47TxAction` and `reconsiderBip47Tx` to confirm their removal.
rg --type cpp 'reconsiderBip47TxAction|reconsiderBip47Tx'

Length of output: 59

src/qt/automintdialog.cpp (8)

Line range hint 11-24:
Correct initialization and critical section handling.

The constructor properly initializes UI elements and manages critical sections, ensuring thread safety.


Line range hint 26-31:
Proper critical section handling in destructor.

The destructor correctly leaves critical sections, ensuring resources are released safely.


Line range hint 33-60:
Secure handling of user input and minting operations.

The accept method securely handles passphrases and performs minting operations, providing appropriate user feedback.


Line range hint 62-68:
Correct implementation of mintable amount check.

The exec method correctly checks the mintable amount before proceeding, ensuring that operations are only performed when feasible.


Line range hint 70-74:
Correct handling of user rejection.

The reject method appropriately sends an acknowledgment for user rejection, ensuring proper feedback.


Line range hint 76-93:
Correct model initialization and UI management.

The setModel method correctly initializes the sparkModel and updates UI elements based on encryption status.


Line range hint 95-108:
Correct UI updates based on progress state.

The paintEvent method correctly updates the UI based on the current progress state, ensuring user feedback is clear.


Line range hint 110-113:
Correct exception handling for model validation.

The ensureSparkModel method correctly throws an exception if the sparkModel is not set, preventing undefined behavior.

src/qt/automintmodel.cpp (2)

Line range hint 1-103: IncomingFundNotifier Class: LGTM

The IncomingFundNotifier class is well-structured, with proper resource management and signal handling.


Line range hint 104-297: AutoMintSparkModel Class: LGTM, but verify integration.

The AutoMintSparkModel class is well-implemented with clear state management. Ensure that this new model integrates seamlessly with the rest of the application.

Consider verifying the integration points with other components to ensure smooth functionality.

Verification successful

AutoMintSparkModel Integration Verified: Well-Integrated with Application

The AutoMintSparkModel is effectively integrated with various components like WalletView, AutomintSparkNotification, and SparkModel. The connections and disconnections are handled appropriately, ensuring smooth functionality across the application.

  • Integration Points:
    • WalletView connects to signals from AutoMintSparkModel.
    • AutomintSparkNotification interacts with AutoMintSparkModel.
    • SparkModel manages the lifecycle of AutoMintSparkModel.

No issues found in the integration.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify integration points of `AutoMintSparkModel` with other components.

# Test: Search for usage of `AutoMintSparkModel`. Expect: Consistent integration with other components.
rg --type cpp --type h --type qml -A 5 $'AutoMintSparkModel'

Length of output: 6556

src/qt/walletmodel.h (1)

Line range hint 1-288: WalletModel Class: LGTM, but verify impact of removals.

The simplification of the WalletModel class aligns with the strategic shift. Ensure that the removal of Lelantus and Pcode functionalities does not negatively impact any dependent components.

Consider verifying the usage of removed methods and variables in other parts of the codebase.

src/qt/transactionrecord.cpp (1)

50-56: Simplified Input Check: LGTM, but verify correctness.

The logic now checks only the first input for Sigma spends and JoinSplit transactions, which simplifies the control flow. Ensure this simplification does not miss relevant cases.

Consider verifying the correctness of this logic in different transaction scenarios.

src/Makefile.qt.include (5)

120-120: Remove unused UI form from build process.

The removal of sendtopcodedialog.ui from QT_FORMS_UI is consistent with the removal of related functionality.


120-120: Remove unused MOC file from build process.

The removal of moc_sendtopcodedialog.cpp from QT_MOC_CPP aligns with the removal of the associated UI component.


120-120: Remove unused header from build process.

The removal of sendtopcodedialog.h from BITCOIN_QT_H is appropriate given the removal of related functionality.


120-120: Remove unused Lelantus components from build process.

The removal of lelantusmodel.h, lelantusdialog.h, and lelantuscoincontroldialog.h from BITCOIN_QT_H reflects the shift away from Lelantus.


120-120: Remove unused Lelantus source files from build process.

The removal of pcodemodel.cpp, lelantusmodel.cpp, lelantusdialog.cpp, and lelantuscoincontroldialog.cpp from BITCOIN_QT_WALLET_CPP is consistent with the removal of Lelantus functionality.

src/qt/overviewpage.cpp (5)

213-213: Simplify anonymity check logic.

The on_anonymizeButton_clicked method now only checks for Spark, simplifying the logic and improving clarity.


250-250: Enable anonymize button based on Spark.

The button is enabled only if Spark is allowed and there is an anonymizable balance, simplifying the UI logic.


307-307: Retrieve private balance using Spark model.

The use of getSparkBalance aligns with the removal of Lelantus, focusing on Spark for private balance management.


373-374: Update private balance retrieval logic.

The GetPrivateBalance method now focuses on Spark, removing complexity associated with Lelantus.


398-399: Focus migration logic on Spark.

The migrateClicked method now clearly handles migration from Lelantus to Spark, reflecting the updated focus.

src/qt/transactiontablemodel.cpp (1)

282-282: Verify the impact of reducing rows in updateConfirmations.

The reduction from 1000 to 300 rows should enhance performance, but verify that it does not lead to missing updates in the UI for users with many transactions.

src/qt/walletmodel.cpp (5)

1041-1043: Verify necessity of getAvailableLelantusCoins.

Ensure that retaining this function does not conflict with the focus on the Spark model and assess its necessity.

Verification successful

getAvailableLelantusCoins is necessary for migration.

The function getAvailableLelantusCoins is used in overviewpage.cpp to check for available Lelantus coins before initiating a migration to Spark. This indicates its necessity for the migration process and confirms that it does not conflict with the focus on the Spark model.

  • Location of usage: src/qt/overviewpage.cpp
Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the necessity and impact of retaining `getAvailableLelantusCoins`.

# Test: Search for the usage of `getAvailableLelantusCoins` to assess its necessity.
rg --type cpp -A 5 $'getAvailableLelantusCoins'

Length of output: 1635


Line range hint 1053-1106: Verify input validation and transaction creation in prepareMintSparkTransaction.

Ensure that address validation and transaction creation logic are robust and handle edge cases effectively.

Verification successful

Robust Handling of Transaction Preparation Status in sendcoinsdialog.cpp

The function prepareMintSparkTransaction is used effectively in sendcoinsdialog.cpp, with its return values being processed to handle errors and inform the user. The use of processSendCoinsReturn ensures that all potential issues are managed appropriately. No further action is needed.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify input validation and transaction creation in `prepareMintSparkTransaction`.

# Test: Search for the usage of `prepareMintSparkTransaction` to ensure input validation and transaction creation are robust.
rg --type cpp -A 5 $'prepareMintSparkTransaction'

Length of output: 1472


Script:

#!/bin/bash
# Description: Examine how `prepareMintSparkTransaction` is used in `sendcoinsdialog.cpp` and how its return values are handled.

# Search for the function `prepareMintSparkTransaction` usage in `sendcoinsdialog.cpp` to understand how it handles return values.
rg --type cpp -A 10 $'prepareMintSparkTransaction' src/qt/sendcoinsdialog.cpp

Length of output: 530


Script:

#!/bin/bash
# Description: Check for additional handling of `prepareStatus` in `sendcoinsdialog.cpp`.

# Search for all occurrences of `prepareStatus` in `sendcoinsdialog.cpp` to understand how different return values are processed.
rg --type cpp -A 10 $'prepareStatus' src/qt/sendcoinsdialog.cpp

Length of output: 2669


Line range hint 1045-1051: Verify migration logic in migrateLelantusToSpark.

Ensure that the migration logic is robust and error handling provides clear feedback to users.

Verification successful

Migration Logic and Error Handling Verified

The migrateLelantusToSpark function and its underlying LelantusToSpark implementation are correctly handling migration logic and error reporting. The function integrates well with both UI and RPC components, ensuring users receive clear feedback in case of failures.

  • The function LelantusToSpark is implemented in src/wallet/wallet.cpp.
  • Error handling is consistent across UI and RPC components.
Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the migration logic and error handling in `migrateLelantusToSpark`.

# Test: Search for the usage of `migrateLelantusToSpark` to ensure migration logic is robust.
rg --type cpp -A 5 $'migrateLelantusToSpark'

Length of output: 1436


Script:

#!/bin/bash
# Description: Search for the implementation of `LelantusToSpark` to verify its migration logic and error handling.

# Test: Find the implementation of `LelantusToSpark` in the wallet class.
ast-grep --lang cpp --pattern 'bool LelantusToSpark(std::string &$_)' 

Length of output: 71


Script:

#!/bin/bash
# Description: Perform a broader search for `LelantusToSpark` to locate its definition or related comments.

# Test: Use `rg` to search for `LelantusToSpark` in the codebase.
rg 'LelantusToSpark' --type cpp -A 5 -B 5

Length of output: 8389


95-97: Verify Spark model integration in getAnonymizableBalance.

Ensure that the transition to Spark is correctly implemented and does not affect functionalities that previously depended on Lelantus.


177-179: Verify balance update mechanism with Spark integration.

Ensure that balance changes, including Spark balances, are correctly emitted and handled in the UI.

src/qt/sendcoinsdialog.cpp (8)

Line range hint 97-102: Simplified anonymity mode initialization.

The changes effectively streamline the initialization of the anonymity mode by focusing solely on the Spark model. This reduces complexity and aligns with the PR's objectives.


158-164: Consistent use of Spark model for balance and anonymity mode.

The changes ensure that the balance and anonymity mode are consistently managed using the Spark model, simplifying the code and aligning with the PR's focus.


357-365: Logical Lelantus to Spark migration check.

The migration check is well-placed, ensuring that users are prompted to migrate only when necessary, based on private balance and Spark allowance.


Line range hint 366-374: Streamlined transaction preparation with Spark model.

The transaction preparation logic is effectively simplified by focusing on the Spark model, removing unnecessary Lelantus conditions and aligning with the PR's goals.


Line range hint 588-596: Consistent transaction handling with Spark model.

The transaction handling logic is consistent with the overall focus on the Spark model, ensuring a streamlined and simplified process.


Line range hint 723-729: Dynamic anonymity mode update based on Spark model.

The changes ensure that the anonymity mode and UI elements are dynamically updated based on the Spark model's status, maintaining consistency and simplifying the logic.


852-855: Accurate UI updates with Spark model balance.

The changes ensure that the UI elements accurately reflect the Spark model's balance, maintaining consistency with the focus on Spark.


1012-1015: Consistent balance updates with Spark model.

The balance updates are consistent with the Spark model's focus, ensuring that the UI reflects the correct balance based on the anonymity mode.

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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 8bcf65f and e9e6b61.

Files selected for processing (5)
  • src/qt/bitcoingui.cpp (6 hunks)
  • src/qt/overviewpage.cpp (6 hunks)
  • src/qt/sendcoinsdialog.cpp (11 hunks)
  • src/qt/transactiontablemodel.cpp (1 hunks)
  • src/qt/transactionview.cpp (6 hunks)
Files skipped from review due to trivial changes (2)
  • src/qt/bitcoingui.cpp
  • src/qt/transactionview.cpp
Additional comments not posted (12)
src/qt/overviewpage.cpp (4)

Line range hint 213-220: Simplified control flow in on_anonymizeButton_clicked.

The removal of Lelantus checks simplifies the control flow and focuses on Spark. The logic is correct.


250-250: Updated button enabling logic.

The button is now only enabled if Spark is allowed and there is an anonymizable balance, aligning with the removal of Lelantus.


307-307: Shifted private balance retrieval to Spark model.

The change correctly reflects the shift away from Lelantus and ensures accurate balance retrieval.


373-374: Enhanced balance retrieval in onRefreshClicked.

The use of GetPrivateBalance captures confirmed and unconfirmed balances, enhancing accuracy.

src/qt/transactiontablemodel.cpp (1)

282-282: Reduced row limit in updateConfirmations.

The row limit reduction from 1000 to 300 may improve UI responsiveness but could affect update visibility for larger datasets.

Run the following script to verify the impact of this change on larger datasets:

src/qt/sendcoinsdialog.cpp (7)

Line range hint 97-102: Verify the sufficiency of spark::IsSparkAllowed().

The constructor now relies solely on spark::IsSparkAllowed() to set the anonymize mode. Ensure that this check covers all necessary conditions for the application's functionality.

Run the following script to verify the implementation of spark::IsSparkAllowed():

Verification successful

Verification Successful: spark::IsSparkAllowed() Implementation

The spark::IsSparkAllowed() function is implemented to check if the current blockchain height is greater than or equal to the Spark start block. This is a standard method for enabling features based on blockchain height and is used consistently across the codebase to manage Spark functionality.

  • Implementation Location: src/spark/state.cpp
  • Usage: The function is used throughout the codebase to determine if Spark features should be enabled.
Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the implementation of `spark::IsSparkAllowed()`.

# Test: Search for the function implementation. Expect: The function should cover all necessary conditions.
ast-grep --lang cpp --pattern $'bool IsSparkAllowed() { $$$ }'

Length of output: 63


Script:

#!/bin/bash
# Description: Search for the definition and usage of `IsSparkAllowed` in the codebase.

# Search for the definition of `IsSparkAllowed`.
rg 'bool IsSparkAllowed' -A 10

# Search for all occurrences of `IsSparkAllowed` to understand its usage.
rg 'IsSparkAllowed'

Length of output: 5674


Line range hint 723-729: Verify conditions for enabling/disabling the switch fund button.

The method checks spark::IsSparkAllowed() and the wallet's Spark status. Ensure that these conditions are correctly implemented.

Run the following script to verify the conditions for enabling or disabling the switch fund button:

Verification successful

Conditions for enabling the switch fund button are correctly implemented.

The IsSparkAllowed() function checks if the current block height is sufficient to allow Spark features, which aligns with the conditions used in sendcoinsdialog.cpp. The implementation appears to be correct.

  • src/spark/state.cpp: IsSparkAllowed() checks block height against a consensus parameter.
  • src/qt/sendcoinsdialog.cpp: Uses IsSparkAllowed() and wallet status to enable the switch fund button.
Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the conditions for enabling or disabling the switch fund button.

# Test: Search for the function implementation. Expect: The conditions should be correctly implemented.
ast-grep --lang cpp --pattern $'bool IsSparkAllowed() { $$$ }'

Length of output: 63


Script:

#!/bin/bash
# Search for the definition of the IsSparkAllowed function in the codebase.
rg 'bool IsSparkAllowed\(' -A 10

# Search for any references to IsSparkAllowed to understand its usage context.
rg 'IsSparkAllowed'

Length of output: 5676


Line range hint 158-165: Verify Spark balance handling and wallet conditions.

The method now uses getSparkBalance() and checks spark::IsSparkAllowed(). Ensure that these changes correctly handle the balance and wallet conditions.

Run the following script to verify the implementation of getSparkBalance() and the conditions checked by spark::IsSparkAllowed():

Verification successful

Verification Successful: Spark Balance and Wallet Conditions are Correctly Handled

The getSparkBalance() and IsSparkAllowed() functions are implemented as expected, and their usage in sendcoinsdialog.cpp aligns with their intended functionality. The changes correctly handle the Spark balance and wallet conditions.

  • getSparkBalance() retrieves the Spark balance from the wallet.
  • IsSparkAllowed() checks if Spark is allowed based on the blockchain height.
Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the implementation of `getSparkBalance()` and conditions checked by `spark::IsSparkAllowed()`.

# Test: Search for the function implementation. Expect: The function should correctly handle the balance.
ast-grep --lang cpp --pattern $'std::pair<CAmount, CAmount> getSparkBalance() { $$$ }'

# Test: Verify the conditions checked by `spark::IsSparkAllowed()`.
ast-grep --lang cpp --pattern $'bool IsSparkAllowed() { $$$ }'

Length of output: 151


Script:

#!/bin/bash
# Description: Search for any occurrence of `getSparkBalance` and `IsSparkAllowed` in the codebase.

# Search for any function named `getSparkBalance`.
rg 'getSparkBalance' -A 10 --context-separator=''

# Search for any function named `IsSparkAllowed`.
rg 'IsSparkAllowed' -A 10 --context-separator=''

Length of output: 27551


Line range hint 852-856: Verify balance display update logic.

The method uses getSparkBalance() to update the balance display. Ensure that the update logic is correctly implemented.

Run the following script to verify the balance display update logic:

Verification successful

Balance Display Update Logic Verified

The getSparkBalance function is correctly implemented and used to update the balance display in sendcoinsdialog.cpp. The logic for retrieving and displaying balance information is consistent with the expected behavior.

  • WalletModel::getSparkBalance and SparkModel::getSparkBalance both return balance information as expected.
Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the balance display update logic.

# Test: Search for the function implementation. Expect: The logic should be correctly implemented.
ast-grep --lang cpp --pattern $'std::pair<CAmount, CAmount> getSparkBalance() { $$$ }'

Length of output: 87


Script:

#!/bin/bash
# Description: Search for the `getSparkBalance` function definition in the codebase.

# Use ripgrep to find the definition of getSparkBalance
rg 'getSparkBalance' --type=cpp --type=header -A 5

Length of output: 81


Script:

#!/bin/bash
# Description: Search for the `getSparkBalance` function definition in the codebase.

# Use ripgrep to find the definition of getSparkBalance
rg 'getSparkBalance' --type=cpp --type=hpp -A 5

Length of output: 75


Script:

#!/bin/bash
# Description: Search for the `getSparkBalance` function definition in the codebase.

# Use ripgrep to find the definition of getSparkBalance
rg 'getSparkBalance' --type=cpp --type=h -A 5

Length of output: 3433


357-366: Verify transaction preparation and sending logic.

The method now focuses on Spark transactions. Ensure that the preparation and sending logic is correctly implemented.

Run the following script to verify the transaction preparation and sending logic:

Verification successful

Transaction preparation and sending logic for Spark transactions is implemented.

The codebase includes functions like CreateSparkSpendTransaction and MintAndStoreSpark, which handle Spark transaction preparation and sending. This confirms that the necessary logic is in place.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the transaction preparation and sending logic for Spark transactions.

# Test: Search for the function implementation. Expect: The logic should be correctly implemented.
ast-grep --lang cpp --pattern $'WalletModel::SendCoinsReturn prepareSpendSparkTransaction($_, $_) { $$$ }'
ast-grep --lang cpp --pattern $'WalletModel::SendCoinsReturn prepareMintSparkTransaction($_, $_, $_, $_, $_) { $$$ }'
ast-grep --lang cpp --pattern $'WalletModel::SendCoinsReturn prepareTransaction($_, $_) { $$$ }'

Length of output: 324


Script:

#!/bin/bash
# Description: Search for any functions related to Spark transaction preparation and sending logic.

# Test: Search for functions related to Spark transactions.
rg -A 5 'Spark' --type cpp

Length of output: 379777


Line range hint 588-596: Verify conditions for handling Spark transactions and two-stage transactions.

The method includes conditions for Spark transactions and two-stage transactions. Ensure that these conditions are correctly implemented.

Run the following script to verify the conditions for handling Spark transactions and two-stage transactions:

Verification successful

Verified: Conditions for handling Spark transactions and two-stage transactions are correctly implemented.

The logic in the on_sendButton_clicked method appropriately utilizes IsSparkAllowed and transaction methods from WalletModel to manage different transaction scenarios based on the mode and Spark allowance. The implementation aligns with the intended functionality.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the conditions for handling Spark transactions and two-stage transactions.

# Test: Search for the function implementation. Expect: The conditions should be correctly implemented.
ast-grep --lang cpp --pattern $'bool validateSparkAddress($_) { $$$ }'
ast-grep --lang cpp --pattern $'bool validateExchangeAddress($_) { $$$ }'

Length of output: 146


Script:

#!/bin/bash
# Description: Verify the logic of spark::IsSparkAllowed and model methods related to Spark transactions.

# Search for the implementation of spark::IsSparkAllowed
ast-grep --lang cpp --pattern $'namespace spark { bool IsSparkAllowed() { $$$ } }'

# Search for the implementation of spendSparkCoins in the model
ast-grep --lang cpp --pattern $'class $_ { $$$ bool spendSparkCoins($_) { $$$ } $$$ }'

# Search for the implementation of mintSparkCoins in the model
ast-grep --lang cpp --pattern $'class $_ { $$$ bool mintSparkCoins($_, $_, $_) { $$$ } $$$ }'

# Search for the implementation of sendCoins in the model
ast-grep --lang cpp --pattern $'class $_ { $$$ bool sendCoins($_) { $$$ } $$$ }'

Length of output: 1383


Script:

#!/bin/bash
# Description: Search for occurrences of IsSparkAllowed, spendSparkCoins, mintSparkCoins, and sendCoins in the codebase.

# Search for occurrences of IsSparkAllowed
rg 'IsSparkAllowed' -A 5

# Search for occurrences of spendSparkCoins
rg 'spendSparkCoins' -A 5

# Search for occurrences of mintSparkCoins
rg 'mintSparkCoins' -A 5

# Search for occurrences of sendCoins
rg 'sendCoins' -A 5

Length of output: 26314


Line range hint 1012-1016: Verify balance setting logic.

The method uses getSparkBalance() to set the balance. Ensure that the setting logic is correctly implemented.

Run the following script to verify the balance setting logic:

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Actionable comments posted: 15

🧹 Outside diff range and nitpick comments (1)
src/qt/transactiondesc.cpp (1)

Line range hint 4-4: Address TODO: Add tests for transaction description generation

There's a TODO comment indicating that tests need to be added. Given the critical nature of transaction description generation and the recent changes to the locking mechanism, it's crucial to ensure proper test coverage.

Consider adding the following types of tests:

  1. Unit tests for the toHTML function with various transaction types (normal, Spark, coinbase, etc.).
  2. Tests that simulate lock acquisition failures to ensure proper handling of edge cases.
  3. Integration tests that verify the generated HTML output for different transaction scenarios.

Would you like assistance in generating a test suite for this functionality?

🧰 Tools
🪛 cppcheck

[performance] 80-80: Function parameter 'label' should be passed by const reference.

(passedByValue)


[performance] 74-74: Function parameter 'hash_bind_inner' should be passed by const reference.

(passedByValue)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between e9e6b61 and 7ec3281.

📒 Files selected for processing (7)
  • src/qt/automintmodel.cpp (8 hunks)
  • src/qt/clientmodel.cpp (6 hunks)
  • src/qt/masternodelist.cpp (1 hunks)
  • src/qt/sparkmodel.cpp (1 hunks)
  • src/qt/transactiondesc.cpp (1 hunks)
  • src/qt/transactiontablemodel.cpp (5 hunks)
  • src/qt/walletmodel.cpp (7 hunks)
🧰 Additional context used
🪛 cppcheck
src/qt/automintmodel.cpp

[performance] 37-37: Function parameter 'additional_data' should be passed by const reference.

(passedByValue)


[performance] 38-38: Function parameter 'associated_data' should be passed by const reference.

(passedByValue)


[performance] 37-37: Prefer prefix ++/-- operators for non-primitive types.

(postfixOperator)


[performance] 50-50: Variable 'hash' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 52-52: Variable 'type' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 53-53: Variable 'addressBytes' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 48-48: Prefer prefix ++/-- operators for non-primitive types.

(postfixOperator)


[performance] 74-74: Function parameter 'hash_bind_inner' should be passed by const reference.

(passedByValue)


[performance] 270-270: Variable 'type' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 311-311: Variable 'type' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 312-312: Variable 'hashBytes' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)

src/qt/sparkmodel.cpp

[performance] 44-44: Variable 'type' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 45-45: Variable 'addressBytes' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 45-45: Prefer prefix ++/-- operators for non-primitive types.

(postfixOperator)

src/qt/transactiondesc.cpp

[performance] 80-80: Function parameter 'label' should be passed by const reference.

(passedByValue)

🔇 Additional comments (15)
src/qt/sparkmodel.cpp (1)

40-45: ⚠️ Potential issue

Consider the implications of returning 0 when locks are not acquired

The function getMintableSparkAmount() now returns 0 if it fails to acquire the locks using TRY_LOCK. This behavior might lead callers to misinterpret the 0 return value as indicating that there is no mintable amount available, whereas in reality, the amount is unknown due to lock acquisition failure. Ensure that callers of this function handle the 0 return value appropriately and distinguish between "no mintable amount" and "could not determine mintable amount due to lock contention".

Run the following script to verify how callers handle a zero return value from getMintableSparkAmount():

🧰 Tools
🪛 cppcheck

[performance] 44-44: Variable 'type' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 45-45: Variable 'addressBytes' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 45-45: Prefer prefix ++/-- operators for non-primitive types.

(postfixOperator)

src/qt/automintmodel.cpp (9)

37-39: ⚠️ Potential issue

Potential Issue: Early return may cause missed updates in newBlock().

Replacing LOCK(cs) with TRY_LOCK(cs, lock) and returning early if the lock isn't acquired might lead to missed updates when a new block arrives. If the lock isn't obtained, the function exits without processing, which could result in the txs queue not being checked or resetTimer() not being called when needed.

Consider assessing whether it's acceptable for newBlock() to skip processing in such scenarios or if alternative synchronization strategies are needed to ensure all updates are handled.

🧰 Tools
🪛 cppcheck

[performance] 37-37: Function parameter 'additional_data' should be passed by const reference.

(passedByValue)


[performance] 38-38: Function parameter 'associated_data' should be passed by const reference.

(passedByValue)


[performance] 37-37: Prefer prefix ++/-- operators for non-primitive types.

(postfixOperator)


48-50: ⚠️ Potential issue

Potential Issue: Early return may cause transactions to be ignored in pushTransaction().

By changing to a non-blocking lock and returning immediately when the lock isn't acquired, there's a risk that incoming transactions (id) won't be added to the txs queue. This could lead to transactions not being processed later, affecting the application's functionality.

Please verify if missing a transaction in this context is acceptable or consider queuing transactions differently to ensure they're processed once the lock is available.

🧰 Tools
🪛 cppcheck

[performance] 50-50: Variable 'hash' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 48-48: Prefer prefix ++/-- operators for non-primitive types.

(postfixOperator)


58-60: ⚠️ Potential issue

Potential Issue: Skipping check() execution due to lock unavailability.

Using TRY_LOCK in check() may prevent the function from executing its logic if the lock isn't acquired, potentially delaying important checks or updates that should occur regularly.

Ensure that it's acceptable for check() to be skipped under these circumstances, or consider implementing a mechanism to retry acquiring the lock to perform necessary updates.


118-127: ⚠️ Potential issue

Potential Issue: Early return in importTransactions() may prevent initialization.

In importTransactions(), if the locks aren't acquired, the function returns early, which might prevent the initial import of transactions. This could lead to the txs queue not being populated as expected, affecting subsequent processing.

Consider whether it's acceptable for importTransactions() to skip importing transactions when locks aren't immediately available. If not, you might need to ensure that the import eventually occurs or implement a queuing mechanism.


229-231: ⚠️ Potential issue

Potential Issue: Early return may affect minting process in ackMintSparkAll().

By returning early when the lock isn't acquired, the function may skip essential state updates or processing in the minting acknowledgment, potentially disrupting the auto-minting workflow.

Ensure that skipping the rest of ackMintSparkAll() is acceptable when the lock isn't obtained, or consider queuing the acknowledgment to be processed later.


268-270: ⚠️ Potential issue

Potential Issue: Skipping checkAutoMintSpark() execution could delay necessary checks.

In checkAutoMintSpark(), returning early due to lock unavailability might delay important checks required for the auto-minting process, possibly affecting user experience or system performance.

Assess whether it's appropriate for this function to exit early or if alternative synchronization methods should be employed to ensure timely execution.

🧰 Tools
🪛 cppcheck

[performance] 270-270: Variable 'type' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


310-315: ⚠️ Potential issue

Potential Issue: Early return may prevent auto-mint initiation in startAutoMintSpark().

If the locks aren't acquired and the function returns, mintable amount calculation is skipped, which may prevent the auto-minting process from starting even when conditions are met.

Please verify if it's acceptable for startAutoMintSpark() to skip processing under these conditions, or consider implementing a retry mechanism to ensure the minting process isn't inadvertently delayed.

🧰 Tools
🪛 cppcheck

[performance] 311-311: Variable 'type' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 312-312: Variable 'hashBytes' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


330-338: ⚠️ Potential issue

Potential Issue: Early return in updateAutoMintSparkOption() may cause state inconsistency.

Returning early if locks aren't acquired might prevent the function from updating the auto-mint spark state correctly when the option changes, potentially leading to inconsistent behavior or stale states.

Ensure that the auto-mint spark option is reliably updated. If necessary, consider deferring the update until the locks can be acquired to maintain state consistency.


73-78: Concurrent Locks: Verify lock acquisition order to prevent deadlocks.

When acquiring multiple locks (cs_main and wallet->cs_wallet), it's crucial to maintain a consistent lock acquisition order across the codebase to prevent potential deadlocks. The use of TRY_LOCK with early returns reduces blocking but doesn't eliminate the risk if other parts of the code acquire these locks in a different order.

Please verify that the lock acquisition order here is consistent with other parts of the application. If not, consider reordering the locks or refactoring to a higher-level locking strategy to avoid deadlocks.

To assist in verifying the lock order across the codebase, you can run the following script:

✅ Verification successful

Lock acquisition order between cs_main and wallet->cs_wallet is consistent across the codebase.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Find occurrences of cs_main and wallet->cs_wallet locks and their acquisition order.

# Search for locking patterns involving cs_main and cs_wallet
rg --type cpp "LOCK\(cs_main\).*LOCK\(wallet->cs_wallet\)" --replace '$0 in order: cs_main -> cs_wallet'
rg --type cpp "LOCK\(wallet->cs_wallet\).*LOCK\(cs_main\)" --replace '$0 in order: cs_wallet -> cs_main'

Length of output: 213


Script:

#!/bin/bash
# Description: Find occurrences of cs_main and wallet->cs_wallet TRY_LOCK patterns and their acquisition order.

# Search for TRY_LOCK patterns involving cs_main followed by wallet->cs_wallet
rg --type cpp "TRY_LOCK\s*\(\s*cs_main\s*,\s*\w+\s*\);\s*TRY_LOCK\s*\(\s*wallet->cs_wallet\s*,\s*\w+\s*\)" --replace '$0 in order: cs_main -> cs_wallet'

# Search for TRY_LOCK patterns involving wallet->cs_wallet followed by cs_main
rg --type cpp "TRY_LOCK\s*\(\s*wallet->cs_wallet\s*,\s*\w+\s*\);\s*TRY_LOCK\s*\(\s*cs_main\s*,\s*\w+\s*\)" --replace '$0 in order: cs_wallet -> cs_main'

Length of output: 309


Script:

#!/bin/bash
# Description: Find all TRY_LOCK usages for cs_main and wallet->cs_wallet with file names and line numbers.

echo "Occurrences of TRY_LOCK(cs_main):"
rg --type cpp "TRY_LOCK\s*\(\s*cs_main\s*,\s*\w+\s*\)" -n --no-filename

echo -e "\nOccurrences of TRY_LOCK(wallet->cs_wallet):"
rg --type cpp "TRY_LOCK\s*\(\s*wallet->cs_wallet\s*,\s*\w+\s*\)" -n --no-filename

Length of output: 2679


Script:

#!/bin/bash
# Description: Find functions where both cs_main and wallet->cs_wallet are TRY_LOCKed, to verify lock acquisition order.

# Search for functions that contain both TRY_LOCK(cs_main, ...) and TRY_LOCK(wallet->cs_wallet, ...)
rg --type cpp -z -U --multiline '(TRY_LOCK\s*\(\s*cs_main\s*,\s*\w+\s*\).*TRY_LOCK\s*\(\s*wallet->cs_wallet\s*,\s*\w+\s*\))| (TRY_LOCK\s*\(\s*wallet->cs_wallet\s*,\s*\w+\s*\).*TRY_LOCK\s*\(\s*cs_main\s*,\s*\w+\s*\))' --context 10

Length of output: 231

🧰 Tools
🪛 cppcheck

[performance] 74-74: Function parameter 'hash_bind_inner' should be passed by const reference.

(passedByValue)

src/qt/clientmodel.cpp (2)

131-134: ⚠️ Potential issue

Thread Safety Concern with cachedBestHeaderTime

Similar to cachedBestHeaderHeight, accessing cachedBestHeaderTime without acquiring the lock in getHeaderTipTime() could lead to race conditions if the variable isn't properly synchronized.

Confirm that cachedBestHeaderTime is safely accessed in a multithreaded context.


116-119: ⚠️ Potential issue

Thread Safety Concern with cachedBestHeaderHeight

In getHeaderTipHeight(), if the lock isn't acquired, the function returns cachedBestHeaderHeight without locking cs_main. If cachedBestHeaderHeight is modified elsewhere without proper synchronization, this could lead to race conditions.

Ensure that cachedBestHeaderHeight is accessed and modified atomically or protected by a mutex to prevent data races.

✅ Verification successful

Thread Safety of cachedBestHeaderHeight Confirmed

The variable cachedBestHeaderHeight is declared as std::atomic<int> in clientmodel.h, ensuring atomic access and modifications. This effectively addresses the thread safety concerns regarding potential race conditions.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check if `cachedBestHeaderHeight` is thread-safe

# Expected: Variable should be protected or declared as `std::atomic`

rg --type cpp 'cachedBestHeaderHeight' -A 2

Length of output: 1633

src/qt/transactiontablemodel.cpp (2)

243-248: Same Issue of Silent Failure in getTxHex()

The function getTxHex() also returns an empty QString if locks cannot be acquired, without any logging. Similar to the previous comments, consider adding logs to indicate lock acquisition failures.


302-302: Reevaluate Reducing numRows from 1000 to 300 in updateConfirmations()

The change reduces the maximum number of rows updated in updateConfirmations() from 1000 to 300. While this may enhance performance for users with large wallets, it could result in some transactions not being updated promptly. Verify if this limit adequately balances performance with the need to keep transaction confirmations up-to-date.

Consider implementing a dynamic update mechanism, such as processing updates in batches or asynchronously, to ensure all transactions are updated without enforcing a strict row limit.

src/qt/walletmodel.cpp (1)

177-177: Verify thread safety of getSparkBalance()

When assigning values from getSparkBalance():

std::tie(newPrivateBalance, newUnconfirmedPrivateBalance) = getSparkBalance();

Ensure that getSparkBalance() is thread-safe and can be called without causing race conditions, especially since it may access shared resources.

Please verify the thread safety of getSparkBalance() and whether additional locking is needed.

Comment on lines +75 to +80
TRY_LOCK(cs_main,lock_main);
if (!lock_main)
return strHTML;
TRY_LOCK(wallet->cs_wallet,lock_wallet);
if (!lock_wallet)
return strHTML;
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🛠️ Refactor suggestion

Improved locking mechanism, but consider potential side effects

The change from LOCK2 to TRY_LOCK improves the non-blocking behavior of the function, which can enhance responsiveness, especially for users with large wallets. This aligns well with the PR objective of improving performance.

However, be aware of the following considerations:

  1. Returning an empty string when locks can't be acquired might lead to inconsistent UI behavior. Users might see blank transaction details intermittently.
  2. The function now has multiple early return points, which slightly reduces code readability.

Consider the following improvements:

  1. Add logging when locks can't be acquired to help diagnose potential issues.
  2. Implement a retry mechanism with a timeout to reduce the likelihood of returning empty strings.

Example:

int retries = 0;
while (retries < MAX_RETRIES) {
    if (TRY_LOCK(cs_main, lock_main)) {
        if (TRY_LOCK(wallet->cs_wallet, lock_wallet)) {
            // Proceed with the function
            break;
        }
        LEAVE_CRITICAL_SECTION(lock_main);
    }
    retries++;
    if (retries < MAX_RETRIES) {
        MilliSleep(10);
    }
}

if (retries == MAX_RETRIES) {
    LogPrintf("TransactionDesc::toHTML: Failed to acquire locks after %d attempts\n", MAX_RETRIES);
    return strHTML;
}

This approach balances improved responsiveness with a higher likelihood of successful execution.

🧰 Tools
🪛 cppcheck

[performance] 80-80: Function parameter 'label' should be passed by const reference.

(passedByValue)

Comment on lines +73 to +76
TRY_LOCK(cs_mnlinst,lock);
if (!lock)
return;

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⚠️ Potential issue

Potential Data Inconsistency When Failing to Acquire Lock in setMasternodeList

By using TRY_LOCK(cs_mnlinst, lock); and returning early if the lock is not acquired, there's a possibility that mnListCached is not updated when it should be. This could lead to the masternode list being outdated, causing inconsistencies in the UI or other components that rely on this data.

Consider implementing a mechanism to ensure that the masternode list remains consistent, even when the lock can't be acquired immediately. For example, you might queue the update to be retried or ensure that the caller is aware of the failure to update.

Comment on lines +86 to +89
TRY_LOCK(cs_mnlinst,lock);
if (!lock)
return CDeterministicMNList();

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⚠️ Potential issue

Returning Empty Masternode List May Cause Misinterpretation

In getMasternodeList(), if the lock isn't acquired, the function returns an empty CDeterministicMNList(). Callers might interpret this as there being no masternodes available, rather than a temporary inability to access the data due to lock contention.

Consider returning a status indicator or an optional value to distinguish between an empty masternode list and a failure to acquire the lock. This can help prevent misinterpretation by the caller.

Comment on lines +95 to +98
TRY_LOCK(cs_mnlinst,lock);
if(!lock){
return;
}
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⚠️ Potential issue

Stale Data Risk in refreshMasternodeList Due to Early Return

Using TRY_LOCK(cs_mnlinst, lock); and returning early if the lock is not acquired in refreshMasternodeList() may result in the masternode list not being refreshed as expected. This could lead to stale data being presented to the user.

Evaluate whether it's acceptable for the masternode list refresh to be skipped. If not, consider scheduling a retry or notifying the system to attempt the refresh again soon.

@@ -138,7 +156,7 @@ quint64 ClientModel::getTotalBytesSent() const

QDateTime ClientModel::getLastBlockDate() const
{
LOCK(cs_main);
TRY_LOCK(cs_main,lock);
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⚠️ Potential issue

Missing Lock Acquisition Check in getLastBlockDate

After attempting to acquire the lock with TRY_LOCK(cs_main, lock);, there is no check to see if the lock was successfully acquired before accessing chainActive.Tip(). This could result in accessing shared data without proper synchronization.

Add a check to verify if the lock was acquired successfully. If not, handle the situation appropriately to prevent unsafe access.

 TRY_LOCK(cs_main, lock);

+if (!lock) {
+    // Handle the failure to acquire the lock, e.g., return a default value
+    return QDateTime();
+}

 if (chainActive.Tip())
     return QDateTime::fromTime_t(chainActive.Tip()->GetBlockTime());

Committable suggestion was skipped due to low confidence.

Comment on lines +226 to +231
TRY_LOCK(cs_main,lock_main);
if (!lock_main)
return QString();;
TRY_LOCK(wallet->cs_wallet,lock_wallet);
if (!lock_wallet)
return QString();
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⚠️ Potential issue

Handle Silent Failure When Locks Cannot Be Acquired in describe()

In the describe() method, if the locks are not acquired, the function returns an empty QString, which might not inform the caller of the reason for the failure. Consider logging the failure to acquire locks to aid in debugging.

Proposed code change:

TRY_LOCK(cs_main, lock_main);
if (!lock_main) {
    LogPrintf("Failed to acquire cs_main lock in describe()\n");
    return QString();
}
TRY_LOCK(wallet->cs_wallet, lock_wallet);
if (!lock_wallet) {
    LogPrintf("Failed to acquire wallet lock in describe()\n");
    return QString();
}
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
TRY_LOCK(cs_main,lock_main);
if (!lock_main)
return QString();;
TRY_LOCK(wallet->cs_wallet,lock_wallet);
if (!lock_wallet)
return QString();
TRY_LOCK(cs_main, lock_main);
if (!lock_main) {
LogPrintf("Failed to acquire cs_main lock in describe()\n");
return QString();
}
TRY_LOCK(wallet->cs_wallet, lock_wallet);
if (!lock_wallet) {
LogPrintf("Failed to acquire wallet lock in describe()\n");
return QString();
}

Comment on lines +95 to 98
if (spark::IsSparkAllowed()){
amount = sparkModel->getMintableSparkAmount();
}
return amount;
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⚠️ Potential issue

Ensure sparkModel is properly initialized before use

In the getAnonymizableBalance() method, sparkModel is accessed without checking if it is initialized. Although sparkModel is initialized in the constructor, it's safer to verify its initialization before use to prevent potential null pointer dereferences.

Consider adding a null check:

if (sparkModel && spark::IsSparkAllowed()) {
    amount = sparkModel->getMintableSparkAmount();
}

Comment on lines +731 to +737
TRY_LOCK(cs_main,lock_main);
if (!lock_main)
return;
TRY_LOCK(wallet->cs_wallet,lock_wallet);
if (!lock_wallet)
return;

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🛠️ Refactor suggestion

Refactor repetitive lock acquisition code into a helper function

The following lock acquisition pattern is repeated in multiple methods:

TRY_LOCK(cs_main, lock_main);
if (!lock_main)
    return;  // or return false;
TRY_LOCK(wallet->cs_wallet, lock_wallet);
if (!lock_wallet)
    return;  // or return false;

Consider refactoring this code into a helper function to reduce duplication and improve maintainability.

Example helper function:

bool WalletModel::tryLockChainAndWallet() const {
    TRY_LOCK(cs_main, lock_main);
    if (!lock_main)
        return false;
    TRY_LOCK(wallet->cs_wallet, lock_wallet);
    if (!lock_wallet)
        return false;
    return true;
}

Then, the methods can use:

if (!tryLockChainAndWallet())
    return;  // or return false;

Also applies to: 760-765, 777-783, 836-841, 847-852, 859-864, 871-876, 882-887, 893-898

Comment on lines +893 to +898
TRY_LOCK(cs_main,lock_main);
if (!lock_main)
return false;
TRY_LOCK(wallet->cs_wallet,lock_wallet);
if (!lock_wallet)
return false;
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⚠️ Potential issue

Handle locking failures appropriately in hasMasternode()

In the hasMasternode() method:

if (!lock_main)
    return false;
if (!lock_wallet)
    return false;
return wallet->HasMasternode();

Returning false when locks are not acquired might mislead the caller into thinking that there is no masternode, whereas the status is actually unknown due to locking failure.

Consider handling the locking failure separately or retrying the lock acquisition to provide accurate information.

@@ -1339,7 +1085,7 @@ bool WalletModel::getAvailableLelantusCoins()
} else {
return false;
}
}
}
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⚠️ Potential issue

Remove extraneous closing brace

At line 1088, there is an extra closing brace without a matching opening brace:

}

This may lead to compilation errors due to mismatched braces.

Please remove the unnecessary closing brace to maintain proper code structure.

LOCK(cs_main);
TRY_LOCK(cs_main,lock);
if (!lock) {
return -1;
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in code sometimes this snippet is used

setNumBlocks(model->getNumBlocks(), ... )

I'm pretty sure it'll cause crashes if getNumBlocks() can return -1

@@ -138,7 +156,7 @@ quint64 ClientModel::getTotalBytesSent() const

QDateTime ClientModel::getLastBlockDate() const
{
LOCK(cs_main);
TRY_LOCK(cs_main,lock);
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Just proceed if TRY_LOCK failed?

@@ -161,7 +179,7 @@ double ClientModel::getVerificationProgress(const CBlockIndex *tipIn) const
CBlockIndex *tip = const_cast<CBlockIndex *>(tipIn);
if (!tip)
{
LOCK(cs_main);
TRY_LOCK(cs_main,lock);
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Another one with not checking

LOCK2(cs_main, wallet->cs_wallet);
TRY_LOCK(cs_main,lock_main);
if (!lock_main)
return 0;
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Can't it lead to the case when a number on overview page jump from 0 to the real value and back quickly?

LOCK2(cs_main, wallet->cs_wallet);
TRY_LOCK(cs_main,lock_main);
if (!lock_main)
return;
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This (and many other lines like this) may break transaction list completely. I'd suggest some other approach (caching list and atomically adding all the missing txs?)

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Actionable comments posted: 4

🧹 Outside diff range and nitpick comments (5)
src/qt/sparkmodel.h (1)

43-44: Add documentation for the cached amount.

Consider adding a brief comment explaining:

  • The purpose of caching
  • When the cache is invalidated
  • Why it needs to be mutable
+    // Caches the mintable spark amount to improve UI responsiveness.
+    // This cache is invalidated when the wallet state changes.
     mutable std::atomic<CAmount> cachedMintableSparkAmount;
src/qt/sparkmodel.cpp (1)

54-54: LGTM! Consider adding timestamp to cached value.

The atomic cache update is thread-safe and efficient. To further improve the caching strategy, consider adding a timestamp to track the age of the cached value. This could help implement a time-based refresh policy.

// In header:
+struct MintableAmount {
+    std::atomic<CAmount> amount;
+    std::atomic<int64_t> timestamp;
+};
-mutable std::atomic<CAmount> cachedMintableSparkAmount;
+mutable MintableAmount cachedMintableSparkAmount;

// In cpp:
-cachedMintableSparkAmount = s;
+cachedMintableSparkAmount.amount = s;
+cachedMintableSparkAmount.timestamp = GetTimeMillis();
src/qt/clientmodel.h (2)

96-98: Consider thread-safety for cachedLastBlockDate.

The caching implementation looks good and aligns with the performance improvement goals. However, while cachedNumBlocks is thread-safe using std::atomic, cachedLastBlockDate might need similar protection.

Consider one of these approaches:

// Option 1: Use a mutex-protected wrapper
mutable std::mutex cacheMutex;
mutable QDateTime cachedLastBlockDate;

// Option 2: Use atomic operations with timestamps
mutable std::atomic<qint64> cachedLastBlockTimestamp;

99-99: Remove unnecessary empty line.

The empty line at line 99 is redundant as there's already spacing between the cache variables and the private section.

src/qt/clientmodel.cpp (1)

41-42: Consider moving initializations to the constructor's initialization list.

For better performance, initialize these members in the constructor's initialization list rather than in the constructor body.

 ClientModel::ClientModel(OptionsModel *_optionsModel, QObject *parent) :
     QObject(parent),
     optionsModel(_optionsModel),
     peerTableModel(0),
     banTableModel(0),
-    pollTimer(0)
+    pollTimer(0),
+    cachedNumBlocks(0),
+    cachedLastBlockDate()
 {
-    cachedNumBlocks = 0;
-    cachedLastBlockDate = QDateTime();
     peerTableModel = new PeerTableModel(this);
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🪛 cppcheck

[performance] 41-41: Variable 'cachedNumBlocks' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 42-42: Variable 'cachedLastBlockDate' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)

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Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 7ec3281 and 3ae2e27.

📒 Files selected for processing (6)
  • src/qt/clientmodel.cpp (6 hunks)
  • src/qt/clientmodel.h (1 hunks)
  • src/qt/sparkmodel.cpp (2 hunks)
  • src/qt/sparkmodel.h (1 hunks)
  • src/qt/transactiontablemodel.cpp (7 hunks)
  • src/qt/transactiontablemodel.h (1 hunks)
✅ Files skipped from review due to trivial changes (1)
  • src/qt/transactiontablemodel.h
🧰 Additional context used
🪛 cppcheck
src/qt/clientmodel.cpp

[performance] 41-41: Variable 'cachedNumBlocks' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 42-42: Variable 'cachedLastBlockDate' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)

src/qt/sparkmodel.cpp

[performance] 44-44: Variable 'type' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 45-45: Variable 'addressBytes' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 45-45: Prefer prefix ++/-- operators for non-primitive types.

(postfixOperator)

🔇 Additional comments (9)
src/qt/sparkmodel.cpp (1)

40-45: Consider UI implications of non-blocking locks.

While the switch to TRY_LOCK improves responsiveness by preventing thread blocking (especially beneficial for large wallets), it could lead to UI value flickering as noted in the previous review. The UI might briefly show cached values when locks can't be acquired, then update to new values when locks succeed.

Consider these alternatives:

  1. Add a small delay before returning cached value to reduce update frequency
  2. Implement a debouncing mechanism in the UI layer
  3. Add value smoothing to prevent jarring updates

Would you like me to provide implementation examples for any of these approaches?

🧰 Tools
🪛 cppcheck

[performance] 44-44: Variable 'type' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 45-45: Variable 'addressBytes' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 45-45: Prefer prefix ++/-- operators for non-primitive types.

(postfixOperator)

src/qt/clientmodel.cpp (4)

75-78: Past comments about masternode list data inconsistency are still valid.

The concerns raised in previous reviews about potential data inconsistency due to early returns on lock failures remain unaddressed.

Also applies to: 88-91, 97-100


106-110: LGTM! Thread-safe caching implementation.

The caching mechanism is well-implemented, updating the cache only when the lock is acquired while providing a consistent view of the block height.


118-121: LGTM! Consistent caching pattern.

The header tip caching follows the same thread-safe pattern as block height caching, maintaining consistency across the implementation.

Also applies to: 133-136


189-191: Past comments about missing lock verification are still valid.

The concerns raised in previous reviews about potential unsafe access due to missing lock verification remain unaddressed.

src/qt/transactiontablemodel.cpp (4)

85-90: Logging Needed for Failed Lock Acquisition in refreshWallet()

As previously noted, if the locks cs_main or wallet->cs_wallet cannot be acquired in refreshWallet(), the function returns early without logging. Adding logging statements here would aid in debugging lock contention issues.


230-235: Logging Needed for Failed Lock Acquisition in describe()

As previously noted, if locks cannot be acquired in describe(), the function returns an empty QString without logging. Logging these failed attempts would help in troubleshooting.


247-252: Logging Needed for Failed Lock Acquisition in getTxHex()

As previously noted, if locks cannot be acquired in getTxHex(), the function returns an empty QString without logging. Adding logging statements would facilitate debugging.


317-317: Verify Impact of Reducing Max Rows in updateConfirmations()

The updateConfirmations() function now updates a maximum of 300 rows, reduced from 1000. Please verify that this change does not negatively affect users with transaction histories longer than 300 entries, as it may result in some transaction confirmations not being updated in the UI.

src/qt/sparkmodel.h Show resolved Hide resolved
Comment on lines 161 to 169
TRY_LOCK(cs_main,lock);

if (chainActive.Tip())
return QDateTime::fromTime_t(chainActive.Tip()->GetBlockTime());
if (!lock)
cachedLastBlockDate;

if (chainActive.Tip()) {
cachedLastBlockDate = QDateTime::fromTime_t(chainActive.Tip()->GetBlockTime());
return cachedLastBlockDate;
}
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⚠️ Potential issue

Fix missing return statement.

There's a syntax error in the early return logic.

-    if (!lock)
-        cachedLastBlockDate;
+    if (!lock)
+        return cachedLastBlockDate;
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
TRY_LOCK(cs_main,lock);
if (chainActive.Tip())
return QDateTime::fromTime_t(chainActive.Tip()->GetBlockTime());
if (!lock)
cachedLastBlockDate;
if (chainActive.Tip()) {
cachedLastBlockDate = QDateTime::fromTime_t(chainActive.Tip()->GetBlockTime());
return cachedLastBlockDate;
}
TRY_LOCK(cs_main,lock);
if (!lock)
return cachedLastBlockDate;
if (chainActive.Tip()) {
cachedLastBlockDate = QDateTime::fromTime_t(chainActive.Tip()->GetBlockTime());
return cachedLastBlockDate;
}

src/qt/transactiontablemodel.cpp Show resolved Hide resolved
Comment on lines 296 to 308
priv->cachedUpdatedTx.push_back(std::make_pair(updated, std::make_pair(status, showTransaction)));
size_t currentSize = priv->cachedUpdatedTx.size();
for (auto itr = priv->cachedUpdatedTx.rbegin(); itr!= priv->cachedUpdatedTx.rend();)
{
std::pair<uint256, std::pair<int, bool>> current = *itr;
priv->cachedUpdatedTx.erase(--priv->cachedUpdatedTx.end());
itr++;
priv->updateWallet(current.first, current.second.first, current.second.second);
// this thread was not able to perform the update, stop and do it next time
if (currentSize == priv->cachedUpdatedTx.size())
break;
currentSize = priv->cachedUpdatedTx.size();
}
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⚠️ Potential issue

Unsafe Erasure of Elements from cachedUpdatedTx While Iterating

In the loop starting at line 298, elements are erased from cachedUpdatedTx while iterating using reverse iterators. Modifying a std::vector (such as erasing elements) during iteration invalidates iterators and can lead to undefined behavior. Please revise the loop to avoid modifying the vector during iteration or consider using a different data structure that safely supports element removal during iteration, such as std::deque or std::list.

Apply this diff to fix the issue:

-for (auto itr = priv->cachedUpdatedTx.rbegin(); itr!= priv->cachedUpdatedTx.rend();)
+while (!priv->cachedUpdatedTx.empty())
 {
-    std::pair<uint256, std::pair<int, bool>> current = *itr;
-    priv->cachedUpdatedTx.erase(--priv->cachedUpdatedTx.end());
-    itr++;
+    std::pair<uint256, std::pair<int, bool>> current = priv->cachedUpdatedTx.back();
+    priv->cachedUpdatedTx.pop_back();
     priv->updateWallet(current.first, current.second.first, current.second.second);
     // this thread was not able to perform the update, stop and do it next time
     if (currentSize == priv->cachedUpdatedTx.size())
         break;
     currentSize = priv->cachedUpdatedTx.size();
 }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
priv->cachedUpdatedTx.push_back(std::make_pair(updated, std::make_pair(status, showTransaction)));
size_t currentSize = priv->cachedUpdatedTx.size();
for (auto itr = priv->cachedUpdatedTx.rbegin(); itr!= priv->cachedUpdatedTx.rend();)
{
std::pair<uint256, std::pair<int, bool>> current = *itr;
priv->cachedUpdatedTx.erase(--priv->cachedUpdatedTx.end());
itr++;
priv->updateWallet(current.first, current.second.first, current.second.second);
// this thread was not able to perform the update, stop and do it next time
if (currentSize == priv->cachedUpdatedTx.size())
break;
currentSize = priv->cachedUpdatedTx.size();
}
priv->cachedUpdatedTx.push_back(std::make_pair(updated, std::make_pair(status, showTransaction)));
size_t currentSize = priv->cachedUpdatedTx.size();
while (!priv->cachedUpdatedTx.empty())
{
std::pair<uint256, std::pair<int, bool>> current = priv->cachedUpdatedTx.back();
priv->cachedUpdatedTx.pop_back();
priv->updateWallet(current.first, current.second.first, current.second.second);
// this thread was not able to perform the update, stop and do it next time
if (currentSize == priv->cachedUpdatedTx.size())
break;
currentSize = priv->cachedUpdatedTx.size();
}

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Actionable comments posted: 1

🧹 Outside diff range and nitpick comments (3)
src/qt/clientmodel.cpp (1)

41-42: Move initialization to constructor's initialization list for better performance.

Consider moving the initialization of cachedNumBlocks and cachedLastBlockDate to the constructor's initialization list.

 ClientModel::ClientModel(OptionsModel *_optionsModel, QObject *parent) :
     QObject(parent),
     optionsModel(_optionsModel),
     peerTableModel(0),
     banTableModel(0),
-    pollTimer(0)
+    pollTimer(0),
+    cachedNumBlocks(0),
+    cachedLastBlockDate()
 {
-    cachedNumBlocks = 0;
-    cachedLastBlockDate = QDateTime();
     peerTableModel = new PeerTableModel(this);
🧰 Tools
🪛 cppcheck

[performance] 41-41: Variable 'cachedNumBlocks' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 42-42: Variable 'cachedLastBlockDate' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)

src/qt/transactiontablemodel.cpp (2)

76-76: Consider adding a size limit to cachedUpdatedTx

The unbounded cache could potentially consume excessive memory if many transactions are queued due to lock contention.

Consider adding a maximum size limit and handling overflow scenarios:

-    std::vector<std::pair<uint256, std::pair<int, bool>>> cachedUpdatedTx;
+    static const size_t MAX_CACHED_TX = 1000;
+    std::vector<std::pair<uint256, std::pair<int, bool>>> cachedUpdatedTx;

316-316: Consider a dynamic row limit based on wallet size

The hard-coded limit of 300 rows might be too restrictive for large wallets and unnecessary for small ones.

Consider making the limit configurable or dynamic:

-    int numRows = std::min(300, priv->size()-1);
+    // Process ~30% of wallet size with a minimum of 100 and maximum of 1000 rows
+    int numRows = std::min(1000, std::max(100, std::min((priv->size()-1), priv->size() * 3 / 10)));
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📒 Files selected for processing (2)
  • src/qt/clientmodel.cpp (6 hunks)
  • src/qt/transactiontablemodel.cpp (7 hunks)
🧰 Additional context used
🪛 cppcheck
src/qt/clientmodel.cpp

[performance] 41-41: Variable 'cachedNumBlocks' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)


[performance] 42-42: Variable 'cachedLastBlockDate' is assigned in constructor body. Consider performing initialization in initialization list.

(useInitializationList)

🔇 Additional comments (6)
src/qt/clientmodel.cpp (5)

Line range hint 75-100: LGTM with existing concerns.

The implementation is functionally correct, but please address the concerns raised in the previous review comments about potential data inconsistency and stale data risks.


106-110: LGTM! Effective caching implementation.

The caching mechanism for block height is well-implemented, using atomic operations and proper lock handling. This change aligns well with the PR's performance improvement goals.


118-121: LGTM! Consistent caching implementation.

The header tip caching implementation follows the same pattern as block height caching, maintaining consistency across the codebase.

Also applies to: 133-136


161-169: LGTM! Proper cache handling for block date.

The implementation correctly manages the cached last block date with proper lock handling and return value management.


189-191: LGTM! Proper lock handling.

The implementation correctly handles the case when the lock cannot be acquired by returning 0, which is an appropriate default value for verification progress.

src/qt/transactiontablemodel.cpp (1)

85-90: LGTM: Non-blocking lock acquisition improves UI responsiveness

The change from blocking to non-blocking locks helps prevent UI freezes during high contention scenarios.

Note: Previous review comments about adding logging for failed lock acquisitions are still valid.

Also applies to: 139-148, 230-235, 247-252

Comment on lines +296 to +307
priv->cachedUpdatedTx.push_back(std::make_pair(updated, std::make_pair(status, showTransaction)));
size_t currentSize = priv->cachedUpdatedTx.size();
while (!priv->cachedUpdatedTx.empty())
{
std::pair<uint256, std::pair<int, bool>> current = priv->cachedUpdatedTx.back();
priv->cachedUpdatedTx.pop_back();
priv->updateWallet(current.first, current.second.first, current.second.second);
// this thread was not able to perform the update, stop and do it next time
if (currentSize == priv->cachedUpdatedTx.size())
break;
currentSize = priv->cachedUpdatedTx.size();
}
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⚠️ Potential issue

Fix potential infinite loop in transaction processing

The current implementation might get stuck in an infinite loop if a transaction update consistently fails without changing the queue size.

Consider adding a maximum retry count:

     size_t currentSize = priv->cachedUpdatedTx.size();
+    size_t retryCount = 0;
+    static const size_t MAX_RETRIES = 3;
     while (!priv->cachedUpdatedTx.empty())
     {
         std::pair<uint256, std::pair<int, bool>> current = priv->cachedUpdatedTx.back();
         priv->cachedUpdatedTx.pop_back();
         priv->updateWallet(current.first, current.second.first, current.second.second);
         // this thread was not able to perform the update, stop and do it next time
-        if (currentSize == priv->cachedUpdatedTx.size())
+        if (currentSize == priv->cachedUpdatedTx.size() && ++retryCount >= MAX_RETRIES)
             break;
         currentSize = priv->cachedUpdatedTx.size();
     }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
priv->cachedUpdatedTx.push_back(std::make_pair(updated, std::make_pair(status, showTransaction)));
size_t currentSize = priv->cachedUpdatedTx.size();
while (!priv->cachedUpdatedTx.empty())
{
std::pair<uint256, std::pair<int, bool>> current = priv->cachedUpdatedTx.back();
priv->cachedUpdatedTx.pop_back();
priv->updateWallet(current.first, current.second.first, current.second.second);
// this thread was not able to perform the update, stop and do it next time
if (currentSize == priv->cachedUpdatedTx.size())
break;
currentSize = priv->cachedUpdatedTx.size();
}
priv->cachedUpdatedTx.push_back(std::make_pair(updated, std::make_pair(status, showTransaction)));
size_t currentSize = priv->cachedUpdatedTx.size();
size_t retryCount = 0;
static const size_t MAX_RETRIES = 3;
while (!priv->cachedUpdatedTx.empty())
{
std::pair<uint256, std::pair<int, bool>> current = priv->cachedUpdatedTx.back();
priv->cachedUpdatedTx.pop_back();
priv->updateWallet(current.first, current.second.first, current.second.second);
// this thread was not able to perform the update, stop and do it next time
if (currentSize == priv->cachedUpdatedTx.size() && ++retryCount >= MAX_RETRIES)
break;
currentSize = priv->cachedUpdatedTx.size();
}

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3 participants