Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

fix: fix memory leak #91

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

fix: fix memory leak #91

wants to merge 1 commit into from

Conversation

HelloYmf
Copy link

@HelloYmf HelloYmf commented Nov 5, 2024

Summary by CodeRabbit

  • Refactor
    • Improved the structure of the file reading process for better resource management and error handling within the APK package.
  • Chores
    • Updated the module name from github.com/shogo82148/androidbinary to github.com/HelloYmf/androidbinary in the go.mod file.

Copy link

coderabbitai bot commented Nov 5, 2024

Walkthrough

The changes involve a refactoring of the readZipFile method in the apk package. The implementation now utilizes a local function, localFun, to handle file opening and reading, which allows for immediate closure of the file after reading. This adjustment enhances error handling by returning errors directly from localFun, thus simplifying the control flow and improving readability. The overall functionality remains unchanged, with no alterations to the signatures of exported or public entities. Additionally, the module name in the go.mod file has been updated.

Changes

File Change Summary
apk/apk.go Refactored readZipFile method to use localFun for file handling and error management. Removed outer defer for closing the file reader.
go.mod Updated module name from github.com/shogo82148/androidbinary to github.com/HelloYmf/androidbinary.

Sequence Diagram(s)

sequenceDiagram
    participant Caller
    participant readZipFile
    participant localFun
    participant FileReader

    Caller->>readZipFile: Call readZipFile()
    readZipFile->>localFun: Call localFun()
    localFun->>FileReader: Open file from zip
    FileReader-->>localFun: Return file handle
    localFun->>FileReader: Read data
    FileReader-->>localFun: Return data
    localFun->>FileReader: Close file
    localFun-->>readZipFile: Return data
    readZipFile-->>Caller: Return data
Loading

Poem

🐰 In the land of zip and read,
A function sprouted, took the lead.
With local charm, it closed the door,
To cluttered code, we said no more!
Errors handled, clear and bright,
Hooray for changes, what a delight! 🌟


📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 777917d and 137de37.

📒 Files selected for processing (1)
  • go.mod (1 hunks)
✅ Files skipped from review due to trivial changes (1)
  • go.mod

Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media?

❤️ Share
🪧 Tips

Chat

There are 3 ways to chat with CodeRabbit:

  • Review comments: Directly reply to a review comment made by CodeRabbit. Example:
    • I pushed a fix in commit <commit_id>, please review it.
    • Generate unit testing code for this file.
    • Open a follow-up GitHub issue for this discussion.
  • Files and specific lines of code (under the "Files changed" tab): Tag @coderabbitai in a new review comment at the desired location with your query. Examples:
    • @coderabbitai generate unit testing code for this file.
    • @coderabbitai modularize this function.
  • PR comments: Tag @coderabbitai in a new PR comment to ask questions about the PR branch. For the best results, please provide a very specific query, as very limited context is provided in this mode. Examples:
    • @coderabbitai gather interesting stats about this repository and render them as a table. Additionally, render a pie chart showing the language distribution in the codebase.
    • @coderabbitai read src/utils.ts and generate unit testing code.
    • @coderabbitai read the files in the src/scheduler package and generate a class diagram using mermaid and a README in the markdown format.
    • @coderabbitai help me debug CodeRabbit configuration file.

Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments.

CodeRabbit Commands (Invoked using PR comments)

  • @coderabbitai pause to pause the reviews on a PR.
  • @coderabbitai resume to resume the paused reviews.
  • @coderabbitai review to trigger an incremental review. This is useful when automatic reviews are disabled for the repository.
  • @coderabbitai full review to do a full review from scratch and review all the files again.
  • @coderabbitai summary to regenerate the summary of the PR.
  • @coderabbitai resolve resolve all the CodeRabbit review comments.
  • @coderabbitai configuration to show the current CodeRabbit configuration for the repository.
  • @coderabbitai help to get help.

Other keywords and placeholders

  • Add @coderabbitai ignore anywhere in the PR description to prevent this PR from being reviewed.
  • Add @coderabbitai summary to generate the high-level summary at a specific location in the PR description.
  • Add @coderabbitai anywhere in the PR title to generate the title automatically.

CodeRabbit Configuration File (.coderabbit.yaml)

  • You can programmatically configure CodeRabbit by adding a .coderabbit.yaml file to the root of your repository.
  • Please see the configuration documentation for more information.
  • If your editor has YAML language server enabled, you can add the path at the top of this file to enable auto-completion and validation: # yaml-language-server: $schema=https://coderabbit.ai/integrations/schema.v2.json

Documentation and Community

  • Visit our Documentation for detailed information on how to use CodeRabbit.
  • Join our Discord Community to get help, request features, and share feedback.
  • Follow us on X/Twitter for updates and announcements.

Copy link

@coderabbitai coderabbitai bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (1)
apk/apk.go (1)

183-199: Minor style improvements suggested

Consider cleaning up the spacing and indentation:

-
 		localFun := func() error {
-			rc, e := file.Open()
-			if e != nil {
-				return e
-			}
-			defer rc.Close()
-			if _, e = io.Copy(buf, rc); e != nil {
-				return e
-			}
-			return nil
-		}
-
+		localFun := func() error {
+			rc, e := file.Open()
+			if e != nil {
+				return e
+			}
+			defer rc.Close()
+			if _, e = io.Copy(buf, rc); e != nil {
+				return e
+			}
+			return nil
+		}
 		if err = localFun(); err != nil {
 			return
 		}
-
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 565dc46 and 777917d.

📒 Files selected for processing (1)
  • apk/apk.go (1 hunks)
🔇 Additional comments (2)
apk/apk.go (2)

184-193: Effective fix for the memory leak!

The introduction of localFun with a properly scoped defer ensures that file handles are closed immediately after use, effectively preventing resource leaks. The error handling is also well-implemented.


184-193: Verify similar patterns in the codebase

Let's check if there are other locations in the codebase that might benefit from the same memory leak fix pattern.

✅ Verification successful

Based on the search results, I can generate the final response as we have sufficient information. The searches show that there's only one instance of file.Open() in the codebase (the one being reviewed), and only two instances of defer Close() patterns - one in the code being reviewed and another in a test file which follows a standard test cleanup pattern.

No similar patterns requiring fixes found

The current implementation is the only instance in the codebase where file.Open() is used with a deferred close. The other deferred close found is in a test file following a standard test cleanup pattern, which is appropriate for its context.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for other potential locations using zip.File.Open() that might need similar fixes
echo "Searching for other uses of zip.File.Open()..."
rg "\.Open\(\)" --type go -C 3

# Search for deferred closes that might benefit from smaller scopes
echo "Searching for defer close patterns..."
rg "defer.*\.Close\(\)" --type go -C 3

Length of output: 861

RikaCelery added a commit to RikaCelery/androidbinary that referenced this pull request Jan 15, 2025
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

1 participant