1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_
6 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_
10 #include "mojo/public/cpp/bindings/lib/connector.h"
11 #include "mojo/public/cpp/bindings/lib/shared_data.h"
16 class Router : public MessageReceiver {
18 // The Router takes ownership of |message_pipe|.
19 explicit Router(ScopedMessagePipeHandle message_pipe,
20 MojoAsyncWaiter* waiter = GetDefaultAsyncWaiter());
23 // Sets the receiver to handle messages read from the message pipe that do
24 // not have the kMessageIsResponse flag set.
25 void set_incoming_receiver(MessageReceiver* receiver) {
26 incoming_receiver_ = receiver;
29 // Sets the error handler to receive notifications when an error is
30 // encountered while reading from the pipe or waiting to read from the pipe.
31 void set_error_handler(ErrorHandler* error_handler) {
32 connector_.set_error_handler(error_handler);
35 // Errors from incoming receivers will force the router's connector into an
36 // error state, where no more messages will be processed. This method is used
37 // during testing to prevent that from happening.
38 void set_enforce_errors_from_incoming_receiver(bool enforce) {
39 connector_.set_enforce_errors_from_incoming_receiver(enforce);
42 // Returns true if an error was encountered while reading from the pipe or
43 // waiting to read from the pipe.
44 bool encountered_error() const { return connector_.encountered_error(); }
46 void CloseMessagePipe() {
47 connector_.CloseMessagePipe();
50 ScopedMessagePipeHandle ReleaseMessagePipe() {
51 return connector_.ReleaseMessagePipe();
54 // MessageReceiver implementation:
55 virtual bool Accept(Message* message) MOJO_OVERRIDE;
56 virtual bool AcceptWithResponder(Message* message, MessageReceiver* responder)
60 typedef std::map<uint64_t, MessageReceiver*> ResponderMap;
62 class HandleIncomingMessageThunk : public MessageReceiver {
64 HandleIncomingMessageThunk(Router* router);
65 virtual ~HandleIncomingMessageThunk();
67 // MessageReceiver implementation:
68 virtual bool Accept(Message* message) MOJO_OVERRIDE;
69 virtual bool AcceptWithResponder(Message* message,
70 MessageReceiver* responder) MOJO_OVERRIDE;
75 bool HandleIncomingMessage(Message* message);
78 SharedData<Router*> weak_self_;
79 MessageReceiver* incoming_receiver_;
80 HandleIncomingMessageThunk thunk_;
81 ResponderMap responders_;
82 uint64_t next_request_id_;
85 } // namespace internal
88 #endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_