// Copyright 2022 The Chromium Authors // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // no-include-guard-because-multiply-included // Declares the BarMessageListener class for a given interface Bar. In ipcz // message parlance an interface is a collection of related messages. This class // routes a generic message dispatches to generated virtual methods named for // the messages they receive. e.g. a DoStuff message is routed (based on message // ID) to OnDoStuff(). // // ipcz objects may override this interface to receive messages from some // transport endpoint which they control. For example a NodeLink implements // the Node interface (see node_messages.h and node_message_generator.h) by // subclassing generated NodeMessageListener class and implementing all its // methods. // // Note that listeners separate message receipt (OnMessage) from message // dispatch (DispatchMessage). By default, OnMessage() simply forwards to // DispatchMessage(), but the split allows subclasses to override this behavior, // for example to defer dispatch in some cases. // // All raw transport messages are fully validated and deserialized before // hitting OnMessage(), so implementations do not need to do any protocol-level // validation of their own. #define IPCZ_MSG_BEGIN_INTERFACE … #define IPCZ_MSG_END_INTERFACE … #define IPCZ_MSG_ID … #define IPCZ_MSG_BEGIN … #define IPCZ_MSG_END … #define IPCZ_MSG_BEGIN_VERSION … #define IPCZ_MSG_END_VERSION … #define IPCZ_MSG_PARAM … #define IPCZ_MSG_PARAM_ARRAY … #define IPCZ_MSG_PARAM_DRIVER_OBJECT … #define IPCZ_MSG_PARAM_DRIVER_OBJECT_ARRAY …
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