forked from mirrors/gecko-dev
30984f7bab
Differential Revision: https://phabricator.services.mozilla.com/D62543 --HG-- extra : moz-landing-system : lando
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef _FileDescriptorFile_h
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#define _FileDescriptorFile_h
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#include "mozilla/Attributes.h"
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#include "mozilla/ipc/FileDescriptor.h"
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#include "nsIFile.h"
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#include "private/pprio.h"
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namespace mozilla {
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namespace net {
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/**
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* A limited implementation of nsIFile that wraps a FileDescriptor object
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* allowing the file to be read from. Added to allow a child process to use
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* an nsIFile object for a file it does not have access to on the filesystem
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* but has been provided a FileDescriptor for from the parent. Many nsIFile
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* methods are not implemented and this is not intended to be a general
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* purpose file implementation.
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*/
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class FileDescriptorFile final : public nsIFile {
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typedef mozilla::ipc::FileDescriptor FileDescriptor;
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public:
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FileDescriptorFile(const FileDescriptor& aFD, nsIFile* aFile);
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIFILE
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private:
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~FileDescriptorFile() = default;
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FileDescriptorFile(const FileDescriptorFile& other);
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// regular nsIFile object, that we forward most calls to.
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nsCOMPtr<nsIFile> mFile;
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FileDescriptor mFD;
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};
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} // namespace net
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} // namespace mozilla
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#endif // _FileDescriptorFile_h
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