winget-cli

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ManagedFile.h (1355B)

      1 // Copyright (c) Microsoft Corporation.
      2 // Licensed under the MIT License.
      3 #pragma once
      4 #include <wil/resource.h>
      5 #include <filesystem>
      6 
      7 namespace AppInstaller::Utility
      8 {
      9     // Struct that holds a file handle and may perform additional operations on exit
     10     struct ManagedFile
     11     {
     12         ManagedFile() = default;
     13 
     14         ManagedFile(const ManagedFile&) = delete;
     15         ManagedFile& operator=(const ManagedFile&) = delete;
     16 
     17         ManagedFile(ManagedFile&&) = default;
     18         ManagedFile& operator=(ManagedFile&&) = default;
     19 
     20         HANDLE GetFileHandle() const { return m_fileHandle.get(); }
     21         const std::filesystem::path& GetFilePath() const { return m_filePath; }
     22 
     23         // Always creates a new write locked file at the path given. desiredAccess is passed to CreateFile call.
     24         static ManagedFile CreateWriteLockedFile(const std::filesystem::path& path, DWORD desiredAccess, bool deleteOnExit);
     25 
     26         // Always opens an existing file at the path given with write locked. desiredAccess is passed to CreateFile call.
     27         static ManagedFile OpenWriteLockedFile(const std::filesystem::path& path, DWORD desiredAccess);
     28 
     29         ~ManagedFile();
     30 
     31     private:
     32         std::filesystem::path m_filePath;
     33         wil::unique_handle m_fileHandle;
     34         bool m_deleteFileOnExit = false;
     35     };
     36 }