/* -*- 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 mozilla_ipc_FileDescriptorUtils_h #define mozilla_ipc_FileDescriptorUtils_h #include "mozilla/Attributes.h" #include "mozilla/ipc/FileDescriptor.h" #include "nsIRunnable.h" #include <stdio.h> namespace mozilla { namespace ipc { // When Dispatch() is called (from main thread) this class arranges to close the // provided FileDescriptor on one of the socket transport service threads (to // avoid main thread I/O). class CloseFileRunnable final : public nsIRunnable { typedef mozilla::ipc::FileDescriptor FileDescriptor; FileDescriptor mFileDescriptor; public: explicit CloseFileRunnable(const FileDescriptor& aFileDescriptor) #ifdef DEBUG ; #else : mFileDescriptor(aFileDescriptor) { } #endif NS_DECL_THREADSAFE_ISUPPORTS NS_DECL_NSIRUNNABLE void Dispatch(); private: ~CloseFileRunnable(); void CloseFile(); }; // On failure, FileDescriptorToFILE returns nullptr; on success, // returns duplicated FILE*. // This is meant for use with FileDescriptors received over IPC. FILE* FileDescriptorToFILE(const FileDescriptor& aDesc, const char* aOpenMode); // FILEToFileDescriptor does not consume the given FILE*; it must be // fclose()d as normal, and this does not invalidate the returned // FileDescriptor. FileDescriptor FILEToFileDescriptor(FILE* aStream); } // namespace ipc } // namespace mozilla #endif // mozilla_ipc_FileDescriptorUtils_h