Add m-esr52 at 52.6.0

1 files changed, 114 insertions, 0 deletions

diff --git a/ipc/glue/nsIIPCSerializableInputStream.h b/ipc/glue/nsIIPCSerializableInputStream.h
new file mode 100644
index 000000000..365e490b1
--- /dev/null
+++ b/ipc/glue/nsIIPCSerializableInputStream.h
@@ -0,0 +1,114 @@
+/* -*- 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_nsIIPCSerializableInputStream_h
+#define mozilla_ipc_nsIIPCSerializableInputStream_h
+
+#include "mozilla/Attributes.h"
+#include "mozilla/Maybe.h"
+#include "nsISupports.h"
+#include "nsTArrayForwardDeclare.h"
+
+namespace mozilla {
+namespace ipc {
+
+class FileDescriptor;
+class InputStreamParams;
+
+} // namespace ipc
+} // namespace mozilla
+
+#define NS_IIPCSERIALIZABLEINPUTSTREAM_IID \
+  {0xb0211b14, 0xea6d, 0x40d4, {0x87, 0xb5, 0x7b, 0xe3, 0xdf, 0xac, 0x09, 0xd1}}
+
+class NS_NO_VTABLE nsIIPCSerializableInputStream : public nsISupports
+{
+public:
+  typedef nsTArray<mozilla::ipc::FileDescriptor>
+          FileDescriptorArray;
+
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IIPCSERIALIZABLEINPUTSTREAM_IID)
+
+  virtual void
+  Serialize(mozilla::ipc::InputStreamParams& aParams,
+            FileDescriptorArray& aFileDescriptors) = 0;
+
+  virtual bool
+  Deserialize(const mozilla::ipc::InputStreamParams& aParams,
+              const FileDescriptorArray& aFileDescriptors) = 0;
+
+  // The number of bytes that are expected to be written when this
+  // stream is serialized. A value of Some(N) indicates that N bytes
+  // will be written to the IPC buffer, and will be used to decide
+  // upon an optimal transmission mechanism. A value of Nothing
+  // indicates that either serializing this stream will not require
+  // serializing its contents (eg. a file-backed stream, or a stream
+  // backed by an IPC actor), or the length of the stream's contents
+  // cannot be determined.
+  virtual mozilla::Maybe<uint64_t>
+  ExpectedSerializedLength() = 0;
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsIIPCSerializableInputStream,
+                              NS_IIPCSERIALIZABLEINPUTSTREAM_IID)
+
+#define NS_DECL_NSIIPCSERIALIZABLEINPUTSTREAM                                  \
+  virtual void                                                                 \
+  Serialize(mozilla::ipc::InputStreamParams&,                                  \
+            FileDescriptorArray&) override;                                    \
+                                                                               \
+  virtual bool                                                                 \
+  Deserialize(const mozilla::ipc::InputStreamParams&,                          \
+              const FileDescriptorArray&) override;                            \
+                                                                               \
+  virtual mozilla::Maybe<uint64_t>                                             \
+  ExpectedSerializedLength() override;
+
+#define NS_FORWARD_NSIIPCSERIALIZABLEINPUTSTREAM(_to)                          \
+  virtual void                                                                 \
+  Serialize(mozilla::ipc::InputStreamParams& aParams,                          \
+            FileDescriptorArray& aFileDescriptors) override                    \
+  {                                                                            \
+    _to Serialize(aParams, aFileDescriptors);                                  \
+  }                                                                            \
+                                                                               \
+  virtual bool                                                                 \
+  Deserialize(const mozilla::ipc::InputStreamParams& aParams,                  \
+              const FileDescriptorArray& aFileDescriptors) override            \
+  {                                                                            \
+    return _to Deserialize(aParams, aFileDescriptors);                         \
+  }                                                                            \
+                                                                               \
+  virtual mozilla::Maybe<uint64_t>                                             \
+  ExpectedSerializedLength() override                                          \
+  {                                                                            \
+    return _to ExpectedSerializedLength();                                     \
+  }
+
+#define NS_FORWARD_SAFE_NSIIPCSERIALIZABLEINPUTSTREAM(_to)                     \
+  virtual void                                                                 \
+  Serialize(mozilla::ipc::InputStreamParams& aParams,                          \
+            FileDescriptorArray& aFileDescriptors) override                    \
+  {                                                                            \
+    if (_to) {                                                                 \
+      _to->Serialize(aParams, aFileDescriptors);                               \
+    }                                                                          \
+  }                                                                            \
+                                                                               \
+  virtual bool                                                                 \
+  Deserialize(const mozilla::ipc::InputStreamParams& aParams,                  \
+              const FileDescriptorArray& aFileDescriptors) override            \
+  {                                                                            \
+    return _to ? _to->Deserialize(aParams, aFileDescriptors) : false;          \
+  }                                                                            \
+                                                                               \
+  virtual mozilla::Maybe<uint64_t>                                             \
+  ExpectedSerializedLength() override                                          \
+  {                                                                            \
+    return _to ? _to->ExpectedSerializedLength() : Nothing();                  \
+  }
+
+#endif // mozilla_ipc_nsIIPCSerializableInputStream_h