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@achrafAa achrafAa commented Jun 27, 2025

Summary by CodeRabbit

  • New Features

    • Introduced a standalone initialization method for the CSV reader, allowing for automatic management of memory arenas.
    • CSV reader now separates memory usage into persistent and temporary arenas for improved memory management.
  • Bug Fixes

    • Improved error handling for memory allocation failures and file opening errors during CSV reader initialization.
  • Tests

    • Updated test suite to use the new standalone initialization method and reflect the updated configuration handling.
  • Refactor

    • CSV reader configuration and memory management refactored to support dual-arena model and new ownership semantics.

@achrafAa achrafAa merged commit b2f92c9 into main Jun 27, 2025
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coderabbitai bot commented Jun 27, 2025

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Review failed

The pull request is closed.

Walkthrough

The codebase was refactored to introduce a dual-arena memory management model for the CSV reader, separating persistent and temporary allocations. Initialization and configuration functions were updated to accept two arenas. A new standalone initialization function was added, and all memory allocations in parsing and reading logic were updated accordingly. Tests were modified to use the new standalone initialization.

Changes

File(s) Change Summary
csv_parser.c Replaced heap allocations with arena allocations; removed all free calls; updated buffer growth logic to use arenas.
csv_reader.c Introduced persistent and temporary arenas; updated all functions to use dual arenas; added standalone initialization and cleanup logic.
csv_reader.h Updated CSVReader struct for dual arenas; changed function signatures; added standalone init function declaration.
tests/test_csv_reader.c Modified tests to use standalone initialization; removed config update tests; adjusted test logic for new API.

Sequence Diagram(s)

sequenceDiagram
    participant Test as Test Code
    participant CSVConfig
    participant CSVReader
    participant Arena(Persistent)
    participant Arena(Temp)
    participant File

    Test->>CSVConfig: Create config
    Test->>CSVReader: csv_reader_init_standalone(config)
    CSVReader->>Arena(Persistent): Allocate persistent arena (1MB)
    CSVReader->>Arena(Temp): Allocate temp arena (1MB)
    CSVReader->>File: Open file
    CSVReader->>Arena(Persistent): Allocate CSVReader struct
    CSVReader->>Arena(Persistent): Read and cache header
    Test->>CSVReader: csv_reader_next_record()
    CSVReader->>Arena(Temp): Reset temp arena
    CSVReader->>Arena(Temp): Allocate record buffer
    CSVReader->>File: Read record
    CSVReader->>Test: Return record
    Test->>CSVReader: csv_reader_free()
    CSVReader->>File: Close file
    CSVReader->>Arena(Persistent): Destroy persistent arena
    CSVReader->>Arena(Temp): Destroy temp arena
Loading

Poem

In the warren where memory flows,
Two arenas now, where once was one, arose.
Persistent for keeps, temp for the leap,
CSVs parsed swiftly, no malloc to reap.
With tests all refreshed and logic so keen,
This rabbit’s code runs fast and clean! 🐇✨


📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 35ffe26 and 91e1515.

📒 Files selected for processing (4)
  • csv_parser.c (2 hunks)
  • csv_reader.c (6 hunks)
  • csv_reader.h (1 hunks)
  • tests/test_csv_reader.c (11 hunks)
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