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| 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. | |
| 4 | |
| 5 #ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_ | |
| 6 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_ | |
| 7 | |
| 8 #include <map> | |
| 9 | |
| 10 #include "mojo/public/cpp/bindings/lib/connector.h" | |
| 11 #include "mojo/public/cpp/bindings/lib/filter_chain.h" | |
| 12 #include "mojo/public/cpp/bindings/lib/shared_data.h" | |
| 13 #include "mojo/public/cpp/environment/environment.h" | |
| 14 | |
| 15 namespace mojo { | |
| 16 namespace internal { | |
| 17 | |
| 18 class Router : public MessageReceiverWithResponder { | |
| 19 public: | |
| 20 Router(ScopedMessagePipeHandle message_pipe, | |
| 21 FilterChain filters, | |
| 22 const MojoAsyncWaiter* waiter = Environment::GetDefaultAsyncWaiter()); | |
| 23 ~Router() override; | |
| 24 | |
| 25 // Sets the receiver to handle messages read from the message pipe that do | |
| 26 // not have the kMessageIsResponse flag set. | |
| 27 void set_incoming_receiver(MessageReceiverWithResponder* receiver) { | |
| 28 incoming_receiver_ = receiver; | |
| 29 } | |
| 30 | |
| 31 // Sets the error handler to receive notifications when an error is | |
| 32 // encountered while reading from the pipe or waiting to read from the pipe. | |
| 33 void set_error_handler(ErrorHandler* error_handler) { | |
| 34 connector_.set_error_handler(error_handler); | |
| 35 } | |
| 36 | |
| 37 // Returns true if an error was encountered while reading from the pipe or | |
| 38 // waiting to read from the pipe. | |
| 39 bool encountered_error() const { return connector_.encountered_error(); } | |
| 40 | |
| 41 void CloseMessagePipe() { connector_.CloseMessagePipe(); } | |
| 42 | |
| 43 ScopedMessagePipeHandle PassMessagePipe() { | |
| 44 return connector_.PassMessagePipe(); | |
| 45 } | |
| 46 | |
| 47 // MessageReceiver implementation: | |
| 48 bool Accept(Message* message) override; | |
| 49 bool AcceptWithResponder(Message* message, | |
| 50 MessageReceiver* responder) override; | |
| 51 | |
| 52 // Blocks the current thread for the first incoming method call, i.e., either | |
| 53 // a call to a client method or a callback method. | |
| 54 bool WaitForIncomingMessage() { return connector_.WaitForIncomingMessage(); } | |
| 55 | |
| 56 // Sets this object to testing mode. | |
| 57 // In testing mode: | |
| 58 // - the object is more tolerant of unrecognized response messages; | |
| 59 // - the connector continues working after seeing errors from its incoming | |
| 60 // receiver. | |
| 61 void EnableTestingMode(); | |
| 62 | |
| 63 private: | |
| 64 typedef std::map<uint64_t, MessageReceiver*> ResponderMap; | |
| 65 | |
| 66 class HandleIncomingMessageThunk : public MessageReceiver { | |
| 67 public: | |
| 68 HandleIncomingMessageThunk(Router* router); | |
| 69 ~HandleIncomingMessageThunk() override; | |
| 70 | |
| 71 // MessageReceiver implementation: | |
| 72 bool Accept(Message* message) override; | |
| 73 | |
| 74 private: | |
| 75 Router* router_; | |
| 76 }; | |
| 77 | |
| 78 bool HandleIncomingMessage(Message* message); | |
| 79 | |
| 80 HandleIncomingMessageThunk thunk_; | |
| 81 FilterChain filters_; | |
| 82 Connector connector_; | |
| 83 SharedData<Router*> weak_self_; | |
| 84 MessageReceiverWithResponder* incoming_receiver_; | |
| 85 ResponderMap responders_; | |
| 86 uint64_t next_request_id_; | |
| 87 bool testing_mode_; | |
| 88 }; | |
| 89 | |
| 90 } // namespace internal | |
| 91 } // namespace mojo | |
| 92 | |
| 93 #endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_ROUTER_H_ | |
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