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fix(windows): admit volume roots with existing write handles

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morluto committed 2026-10-15 06:12:23 +08:00
1 parent bb49252523
commit 709e99d781
4 files changed
+151 -1
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native/windows/src/filesystem.cc
+4 -1
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@@ -67,7 +67,10 @@ std::unique_ptr<File> openFile(const std::wstring& requested, DWORD access, bool
result->requestedPath = requested;
const auto& path = result->path;
require(directory || path.size() > 3, "Target is not a regular file", requested, ERROR_DIRECTORY);
result->handles.push_back(openComponent(path.substr(0, 3), 0, true));
// The volume root cannot be replaced or deleted. Match the later root
// reopen's write sharing here so a root writer cannot block admission.
result->handles.push_back(openComponent(path.substr(0, 3), 0, true,
FILE_SHARE_READ | FILE_SHARE_WRITE));
wchar_t filesystem[64]{};
DWORD flags = 0;
require(GetVolumeInformationByHandleW(result->handles.front().get(), nullptr, 0, nullptr, nullptr,