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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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
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