fix: fix file rename failure in multi-threaded scenarios#3563
fix: fix file rename failure in multi-threaded scenarios#3563deepin-bot[bot] merged 1 commit intolinuxdeepin:masterfrom
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Fixed file replacement failure in multi-threaded copy operations by implementing deferred replacement mechanism. Previously, immediate file replacement during concurrent operations caused race conditions and rename failures. Key changes: 1. Added ReplacementTarget struct to header for proper encapsulation 2. Implemented shouldUseMultiThreadCopy() for consistent multi-thread decision logic 3. Added pendingReplacements queue to collect replacement contexts 4. Created applyAllPendingReplacements() to batch process replacements after thread pool completion 5. Added safety checks in FileReplacer to verify temporary file accessibility 6. Moved replacement logic from anonymous namespace to class methods The solution ensures atomic file replacements occur only after all copy threads have completed, eliminating concurrent file system access conflicts. Log: Fixed file operation failures in multi-threaded copy scenarios Influence: 1. Test multi-threaded file copy operations with large files 2. Verify file replacement works correctly after copy completion 3. Test edge cases with inaccessible temporary files 4. Verify cleanup manager properly tracks temporary files 5. Test single-threaded operations remain unaffected 6. Validate file permissions and attributes are preserved fix: 修复多线程场景下文件重命名失败问题 修复了多线程复制操作中的文件替换失败问题,通过实现延迟替换机制。之前并发 操作期间的立即文件替换会导致竞争条件和重命名失败。 主要变更: 1. 在头文件中添加 ReplacementTarget 结构体以实现适当封装 2. 实现 shouldUseMultiThreadCopy() 方法确保多线程决策逻辑一致 3. 添加 pendingReplacements 队列收集替换上下文 4. 创建 applyAllPendingReplacements() 方法在线程池完成后批量处理替换 5. 在 FileReplacer 中添加安全检查以验证临时文件可访问性 6. 将替换逻辑从匿名命名空间移动到类方法中 该解决方案确保原子文件替换仅在所有复制线程完成后进行,消除了并发文件系统 访问冲突。 Log: 修复多线程复制场景下的文件操作失败问题 Influence: 1. 测试大文件的多线程复制操作 2. 验证复制完成后文件替换功能正常工作 3. 测试临时文件不可访问的边缘情况 4. 验证清理管理器正确跟踪临时文件 5. 测试单线程操作不受影响 6. 验证文件权限和属性得到保留
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deepin pr auto reviewGit Diff 代码审查报告整体评估这段代码主要重构了文件操作中的替换机制,将原本在匿名命名空间中的功能移至类成员,并引入了延迟替换机制以支持多线程复制场景。代码整体结构清晰,但存在一些可以改进的地方。 代码逻辑与结构
代码质量与可读性
代码性能
代码安全
改进建议
总结这段代码整体质量较高,逻辑清晰,安全性考虑周到。主要改进点在于进一步封装替换相关功能,增强错误处理和日志记录,以及考虑添加单元测试。这些改进将使代码更易于维护和扩展。 |
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/forcemerge |
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This pr force merged! (status: behind) |
Fixed file replacement failure in multi-threaded copy operations by implementing deferred replacement mechanism. Previously, immediate file replacement during concurrent operations caused race conditions and rename failures.
Key changes:
The solution ensures atomic file replacements occur only after all copy threads have completed, eliminating concurrent file system access conflicts.
Log: Fixed file operation failures in multi-threaded copy scenarios
Influence:
fix: 修复多线程场景下文件重命名失败问题
修复了多线程复制操作中的文件替换失败问题,通过实现延迟替换机制。之前并发
操作期间的立即文件替换会导致竞争条件和重命名失败。
主要变更:
该解决方案确保原子文件替换仅在所有复制线程完成后进行,消除了并发文件系统
访问冲突。
Log: 修复多线程复制场景下的文件操作失败问题
Influence: