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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /ipc/glue/IPCStreamUtils.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'ipc/glue/IPCStreamUtils.h')
-rw-r--r--ipc/glue/IPCStreamUtils.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/ipc/glue/IPCStreamUtils.h b/ipc/glue/IPCStreamUtils.h
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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 mozilla_ipc_IPCStreamUtils_h
+#define mozilla_ipc_IPCStreamUtils_h
+
+#include "mozilla/ipc/IPCStream.h"
+#include "nsCOMPtr.h"
+#include "nsIInputStream.h"
+
+namespace mozilla::ipc {
+
+// Serialize an IPCStream to be sent over IPC fallibly.
+//
+// If |aAllowLazy| is true the stream may be serialized as a
+// RemoteLazyInputStream when being sent from child to parent.
+//
+// ParamTraits<nsIInputStream> may be used instead if serialization cannot be
+// fallible.
+[[nodiscard]] bool SerializeIPCStream(
+ already_AddRefed<nsIInputStream> aInputStream, IPCStream& aValue,
+ bool aAllowLazy);
+
+// If serialization fails, `aValue` will be initialized to `Nothing()`, so this
+// return value is safe to ignore.
+bool SerializeIPCStream(already_AddRefed<nsIInputStream> aInputStream,
+ Maybe<IPCStream>& aValue, bool aAllowLazy);
+
+// Deserialize an IPCStream received from an actor call. These methods
+// work in both the child and parent.
+already_AddRefed<nsIInputStream> DeserializeIPCStream(const IPCStream& aValue);
+
+already_AddRefed<nsIInputStream> DeserializeIPCStream(
+ const Maybe<IPCStream>& aValue);
+
+} // namespace mozilla::ipc
+
+namespace IPC {
+
+template <>
+struct ParamTraits<nsIInputStream*> {
+ static void Write(MessageWriter* aWriter, nsIInputStream* aParam);
+ static bool Read(MessageReader* aReader, RefPtr<nsIInputStream>* aResult);
+};
+
+} // namespace IPC
+
+#endif // mozilla_ipc_IPCStreamUtils_h