Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim: set sw=2 ts=8 et tw=80 : */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #ifndef _FileDescriptorFile_h
       8             : #define _FileDescriptorFile_h
       9             : 
      10             : #include "mozilla/Attributes.h"
      11             : #include "mozilla/ipc/FileDescriptor.h"
      12             : #include "nsIFile.h"
      13             : #include "nsIFileURL.h"
      14             : #include "nsIURI.h"
      15             : #include "private/pprio.h"
      16             : 
      17             : namespace mozilla {
      18             : namespace net {
      19             : 
      20             : /**
      21             :  * A limited implementation of nsIFile that wraps a FileDescriptor object
      22             :  * allowing the file to be read from. Added to allow a child process to use
      23             :  * an nsIFile object for a file it does not have access to on the filesystem
      24             :  * but has been provided a FileDescriptor for from the parent. Many nsIFile
      25             :  * methods are not implemented and this is not intended to be a general
      26             :  * purpose file implementation.
      27             :  */
      28             : class FileDescriptorFile final : public nsIFile
      29             : {
      30             :   typedef mozilla::ipc::FileDescriptor FileDescriptor;
      31             : 
      32             : public:
      33             :   FileDescriptorFile(const FileDescriptor& aFD, nsIFile* aFile);
      34             : 
      35             :   NS_DECL_THREADSAFE_ISUPPORTS
      36             :   NS_DECL_NSIFILE
      37             : 
      38             : private:
      39           0 :   ~FileDescriptorFile()
      40           0 :   {}
      41             : 
      42             :   FileDescriptorFile(const FileDescriptorFile& other);
      43             : 
      44             :   // regular nsIFile object, that we forward most calls to.
      45             :   nsCOMPtr<nsIFile> mFile;
      46             :   FileDescriptor mFD;
      47             : };
      48             : 
      49             : } // namespace net
      50             : } // namespace mozilla
      51             : 
      52             : #endif // _FileDescriptorFile_h