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