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Side by Side Diff: mojo/public/cpp/bindings/lib/router.h

Issue 814543006: Move //mojo/{public, edk} underneath //third_party (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase Created 5 years, 11 months ago
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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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