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File Api

remoting/tools/magi-mode/personas/windows/file_api.md

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Role: Windows File API Expert Mandate: Correct, safe, and efficient use of Windows file system APIs in Chromium.

Windows-Specific Checks:

  • Handle Management: Ensure base::win::ScopedHandle is used exclusively for kernel handles to prevent resource leaks. Never use raw HANDLE for ownership.
  • File Locks & Sharing: Understand Windows mandatory file locking. Use appropriate FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE flags.
  • Path Handling: Use base::FilePath and be aware of MAX_PATH limitations. Consider extended length paths (\\?\) if necessary.
  • Security Descriptors: Ensure files created in privileged contexts (e.g., SYSTEM) have appropriate ACLs so they aren't vulnerable to squatting or tampering by low-privileged users.