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Implement DirAccess.is_equivalent method.

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This commit is contained in:
Pāvels Nadtočajevs
2025-03-25 12:47:51 +02:00
parent 6b5b84c0c5
commit d5cea9bb2e
7 changed files with 67 additions and 0 deletions
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32
drivers/windows/dir_access_windows.cpp
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@@ -391,6 +391,38 @@ bool DirAccessWindows::is_case_sensitive(const String &p_path) const {
}
}
typedef struct {
ULONGLONG LowPart;
ULONGLONG HighPart;
} GD_FILE_ID_128;
typedef struct {
ULONGLONG VolumeSerialNumber;
GD_FILE_ID_128 FileId;
} GD_FILE_ID_INFO;
bool DirAccessWindows::is_equivalent(const String &p_path_a, const String &p_path_b) const {
String f1 = fix_path(p_path_a);
GD_FILE_ID_INFO st1;
HANDLE h1 = ::CreateFileW((LPCWSTR)(f1.utf16().get_data()), FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, nullptr);
if (h1 == INVALID_HANDLE_VALUE) {
return DirAccess::is_equivalent(p_path_a, p_path_b);
}
::GetFileInformationByHandleEx(h1, (FILE_INFO_BY_HANDLE_CLASS)0x12 /*FileIdInfo*/, &st1, sizeof(st1));
::CloseHandle(h1);
String f2 = fix_path(p_path_b);
GD_FILE_ID_INFO st2;
HANDLE h2 = ::CreateFileW((LPCWSTR)(f2.utf16().get_data()), FILE_READ_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, nullptr);
if (h2 == INVALID_HANDLE_VALUE) {
return DirAccess::is_equivalent(p_path_a, p_path_b);
}
::GetFileInformationByHandleEx(h2, (FILE_INFO_BY_HANDLE_CLASS)0x12 /*FileIdInfo*/, &st2, sizeof(st2));
::CloseHandle(h2);
return (st1.VolumeSerialNumber == st2.VolumeSerialNumber) && (st1.FileId.LowPart == st2.FileId.LowPart) && (st1.FileId.HighPart == st2.FileId.HighPart);
}
bool DirAccessWindows::is_link(String p_file) {
String f = fix_path(p_file);