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