-
Notifications
You must be signed in to change notification settings - Fork 0
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 lock still been held in forked subprocess due to open fd #4
Conversation
📝 Walkthrough📝 WalkthroughWalkthrough此次更改涉及 Changes
Poem
📜 Recent review detailsConfiguration used: CodeRabbit UI ⛔ Files ignored due to path filters (1)
📒 Files selected for processing (1)
🔇 Additional comments (1)
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? 🪧 TipsChatThere are 3 ways to chat with CodeRabbit:
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)
Other keywords and placeholders
CodeRabbit Configuration File (
|
There was a problem hiding this 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 (3)
src/shinny_filelock/_flockd.py (3)
17-24
: 改进了文件打开逻辑,但可以进一步优化错误处理这些更改改进了文件打开的逻辑,特别是对于具有粘性位的目录。这是一个很好的改进,可以提高代码的健壮性。
然而,我建议进一步改进错误处理:
try: fd = os.open(path, fd_flags_with_create if create_file else fd_flags) except PermissionError: # maybe file exists and sits in a directory with sticky bits fd = os.open(path, fd_flags) - if fd == -1: - raise ValueError() + if fd == -1: + raise ValueError(f"无法打开文件:{path}")这样可以提供更具体的错误信息,有助于调试。
32-37
: 锁处理逻辑得到了改进,解决了fork子进程中的锁问题这些更改直接解决了PR标题中提到的问题。通过在finally块中显式释放锁,确保了即使在fork的子进程中也能正确释放锁。这是一个很好的改进。
建议稍微调整注释,使其更清晰:
try: yield finally: - # early unlock in case someone is holding the fd(eg: fork without exec) - # lock may also released due to fd closure when inheritable is true + # 提前解锁,以防有人持有fd(例如:fork但未exec) + # 当inheritable为true时,锁也可能因fd关闭而释放 fcntl.flock(fd, fcntl.LOCK_UN)这样可以更好地解释代码的行为,特别是对于不熟悉这些细节的开发人员。
39-41
: 清理逻辑得到了改进,但可以进一步优化注释这些更改通过添加注释和确保fd关闭来改进了资源管理。这对于防止资源泄漏非常重要,特别是在长时间运行的进程或频繁打开和关闭文件的进程中。
建议稍微调整注释,使其更加明确:
- # lock should already released - # close fd to avoid resource leak + # 此时锁应该已经被释放 + # 关闭文件描述符以避免资源泄漏 os.close(fd)这样可以更清楚地说明代码的意图和行为。
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (1)
- src/shinny_filelock/_flockd.py (1 hunks)
🔇 Additional comments (1)
src/shinny_filelock/_flockd.py (1)
Line range hint
1-41
: 总体评价:代码改进显著,解决了关键问题这些更改成功地解决了PR标题中提到的问题,即修复了在fork子进程中仍然持有锁的问题。主要改进包括:
- 改进了文件打开逻辑,特别是对于具有粘性位的目录。
- 通过在finally块中显式释放锁,确保了在各种情况下都能正确释放锁。
- 添加了有助于理解代码行为的注释。
这些更改提高了代码的健壮性和可维护性。建议的小改进主要集中在错误处理和注释的清晰度上,这些都是次要的优化。
总的来说,这是一个高质量的PR,解决了一个重要的问题。
Summary by CodeRabbit
flocked
函数的签名,尽管参数未变,但内部逻辑已修改以提高可读性。