1 // Copyright 2015 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_PIPE_CONTROL_MESSAGE_HANDLER_H_ 6 #define MOJO_PUBLIC_CPP_BINDINGS_PIPE_CONTROL_MESSAGE_HANDLER_H_ 7 8 #include "base/macros.h" 9 #include "mojo/public/cpp/bindings/interface_id.h" 10 #include "mojo/public/cpp/bindings/lib/serialization_context.h" 11 #include "mojo/public/cpp/bindings/message.h" 12 13 namespace mojo { 14 15 class PipeControlMessageHandlerDelegate; 16 17 // Handler for messages defined in pipe_control_messages.mojom. 18 class PipeControlMessageHandler : public MessageReceiver { 19 public: 20 explicit PipeControlMessageHandler( 21 PipeControlMessageHandlerDelegate* delegate); 22 ~PipeControlMessageHandler() override; 23 24 // Sets the description for this handler. Used only when reporting validation 25 // errors. 26 void SetDescription(const std::string& description); 27 28 // NOTE: |message| must have passed message header validation. 29 static bool IsPipeControlMessage(const Message* message); 30 31 // MessageReceiver implementation: 32 33 // NOTE: |message| must: 34 // - have passed message header validation; and 35 // - be a pipe control message (i.e., IsPipeControlMessage() returns true). 36 // If the method returns false, the message pipe should be closed. 37 bool Accept(Message* message) override; 38 39 private: 40 // |message| must have passed message header validation. 41 bool Validate(Message* message); 42 bool RunOrClosePipe(Message* message); 43 44 std::string description_; 45 PipeControlMessageHandlerDelegate* const delegate_; 46 internal::SerializationContext context_; 47 48 DISALLOW_COPY_AND_ASSIGN(PipeControlMessageHandler); 49 }; 50 51 } // namespace mojo 52 53 #endif // MOJO_PUBLIC_CPP_BINDINGS_PIPE_CONTROL_MESSAGE_HANDLER_H_ 54
