Function DirectoryFromQuery

src/OSTPlatform/Windows/DynamicLibrary.cpp:42–60

}

std::string DirectoryFromQuery(DWORD (*query)(DWORD, wchar_t*), const char* operation) {
    for (DWORD capacity = MAX_PATH; capacity <= kMaxWin32PathBuffer; capacity *= 2) {
        std::vector<wchar_t> buffer(capacity);
        const DWORD len = query(capacity, buffer.data());
        if (len == 0) {
            OSTP_LOG_WARN("{} failed (error={})", operation, GetLastError());
            return {};
        }
        if (len < capacity) {
            return WidePathToUtf8(std::wstring_view(buffer.data(), len), operation);
        }
        if (len > capacity) {
            capacity = len;
        }
    }

    OSTP_LOG_WARN("{} path exceeds {} wchars", operation, kMaxWin32PathBuffer);
    return {};
}

DWORD GetCurrentDirectoryThunk(DWORD capacity, wchar_t* buffer) {
    return GetCurrentDirectoryW(capacity, buffer);