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1aa11ffed6
As serializing IPCStream no longer requires a manager or FileDescriptor array, the arguments are no longer necessary, and can be removed. The AutoIPCStream helper can also be removed, as managed actors are no longer used for serialization, so a delayed start callback is not necessary. The delayed start parameter is also removed from nsIIPCSerializableInputStream instances, but is still present as `aAllowLazy` on the toplevel serialization methods. Differential Revision: https://phabricator.services.mozilla.com/D141048
52 lines
1.7 KiB
C++
52 lines
1.7 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 mozilla_ipc_IPCStreamUtils_h
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#define mozilla_ipc_IPCStreamUtils_h
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#include "mozilla/ipc/IPCStream.h"
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#include "nsCOMPtr.h"
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#include "nsIInputStream.h"
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namespace mozilla::ipc {
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// Serialize an IPCStream to be sent over IPC fallibly.
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//
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// If |aAllowLazy| is true the stream may be serialized as a
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// RemoteLazyInputStream when being sent from child to parent.
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//
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// ParamTraits<nsIInputStream> may be used instead if serialization cannot be
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// fallible.
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[[nodiscard]] bool SerializeIPCStream(
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already_AddRefed<nsIInputStream> aInputStream, IPCStream& aValue,
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bool aAllowLazy);
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// If serialization fails, `aValue` will be initialized to `Nothing()`, so this
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// return value is safe to ignore.
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bool SerializeIPCStream(already_AddRefed<nsIInputStream> aInputStream,
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Maybe<IPCStream>& aValue, bool aAllowLazy);
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// Deserialize an IPCStream received from an actor call. These methods
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// work in both the child and parent.
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already_AddRefed<nsIInputStream> DeserializeIPCStream(const IPCStream& aValue);
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already_AddRefed<nsIInputStream> DeserializeIPCStream(
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const Maybe<IPCStream>& aValue);
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} // namespace mozilla::ipc
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namespace IPC {
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template <>
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struct ParamTraits<nsIInputStream*> {
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static void Write(MessageWriter* aWriter, nsIInputStream* aParam);
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static bool Read(MessageReader* aReader, RefPtr<nsIInputStream>* aResult);
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};
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} // namespace IPC
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#endif // mozilla_ipc_IPCStreamUtils_h
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