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-rw-r--r--mojo/public/cpp/bindings/binding.h152
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diff --git a/mojo/public/cpp/bindings/binding.h b/mojo/public/cpp/bindings/binding.h
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--- a/mojo/public/cpp/bindings/binding.h
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-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef MOJO_PUBLIC_CPP_BINDINGS_BINDING_H_
-#define MOJO_PUBLIC_CPP_BINDINGS_BINDING_H_
-
-#include "mojo/public/c/environment/async_waiter.h"
-#include "mojo/public/cpp/bindings/error_handler.h"
-#include "mojo/public/cpp/bindings/interface_ptr.h"
-#include "mojo/public/cpp/bindings/interface_request.h"
-#include "mojo/public/cpp/bindings/lib/filter_chain.h"
-#include "mojo/public/cpp/bindings/lib/message_header_validator.h"
-#include "mojo/public/cpp/bindings/lib/router.h"
-#include "mojo/public/cpp/environment/logging.h"
-#include "mojo/public/cpp/system/core.h"
-
-namespace mojo {
-
-// This binds an interface implementation a pipe. Deleting the binding closes
-// the pipe.
-//
-// Example:
-//
-// #include "foo.mojom.h"
-//
-// class FooImpl : public Foo {
-// public:
-// explicit FooImpl(InterfaceRequest<Foo> request)
-// : binding_(this, request.Pass()) {}
-//
-// // Foo implementation here.
-//
-// private:
-// Binding<Foo> binding_;
-// };
-//
-// class MyFooFactory : public InterfaceFactory<Foo> {
-// public:
-// void Create(..., InterfaceRequest<Foo> request) override {
-// auto f = new FooImpl(request.Pass());
-// // Do something to manage the lifetime of |f|. Use StrongBinding<> to
-// // delete FooImpl on connection errors.
-// }
-// };
-template <typename Interface>
-class Binding : public ErrorHandler {
- public:
- using Client = typename Interface::Client;
-
- explicit Binding(Interface* impl) : impl_(impl) { stub_.set_sink(impl_); }
-
- Binding(Interface* impl,
- ScopedMessagePipeHandle handle,
- const MojoAsyncWaiter* waiter = Environment::GetDefaultAsyncWaiter())
- : Binding(impl) {
- Bind(handle.Pass(), waiter);
- }
-
- Binding(Interface* impl,
- InterfacePtr<Interface>* ptr,
- const MojoAsyncWaiter* waiter = Environment::GetDefaultAsyncWaiter())
- : Binding(impl) {
- Bind(ptr, waiter);
- }
-
- Binding(Interface* impl,
- InterfaceRequest<Interface> request,
- const MojoAsyncWaiter* waiter = Environment::GetDefaultAsyncWaiter())
- : Binding(impl) {
- Bind(request.PassMessagePipe(), waiter);
- }
-
- ~Binding() override {
- delete proxy_;
- if (internal_router_) {
- internal_router_->set_error_handler(nullptr);
- delete internal_router_;
- }
- }
-
- void Bind(
- ScopedMessagePipeHandle handle,
- const MojoAsyncWaiter* waiter = Environment::GetDefaultAsyncWaiter()) {
- internal::FilterChain filters;
- filters.Append<internal::MessageHeaderValidator>();
- filters.Append<typename Interface::RequestValidator_>();
- filters.Append<typename Client::ResponseValidator_>();
-
- internal_router_ =
- new internal::Router(handle.Pass(), filters.Pass(), waiter);
- internal_router_->set_incoming_receiver(&stub_);
- internal_router_->set_error_handler(this);
-
- proxy_ = new typename Client::Proxy_(internal_router_);
- }
-
- void Bind(
- InterfacePtr<Interface>* ptr,
- const MojoAsyncWaiter* waiter = Environment::GetDefaultAsyncWaiter()) {
- MessagePipe pipe;
- ptr->Bind(pipe.handle0.Pass(), waiter);
- Bind(pipe.handle1.Pass(), waiter);
- }
-
- void Bind(
- InterfaceRequest<Interface> request,
- const MojoAsyncWaiter* waiter = Environment::GetDefaultAsyncWaiter()) {
- Bind(request.PassMessagePipe(), waiter);
- }
-
- bool WaitForIncomingMethodCall() {
- MOJO_DCHECK(internal_router_);
- return internal_router_->WaitForIncomingMessage();
- }
-
- void Close() {
- MOJO_DCHECK(internal_router_);
- internal_router_->CloseMessagePipe();
- }
-
- void set_error_handler(ErrorHandler* error_handler) {
- error_handler_ = error_handler;
- }
-
- // ErrorHandler implementation
- void OnConnectionError() override {
- if (error_handler_)
- error_handler_->OnConnectionError();
- }
-
- Interface* impl() { return impl_; }
- Client* client() { return proxy_; }
-
- bool is_bound() const { return !!internal_router_; }
-
- // Exposed for testing, should not generally be used.
- internal::Router* internal_router() { return internal_router_; }
-
- private:
- internal::Router* internal_router_ = nullptr;
- typename Client::Proxy_* proxy_ = nullptr;
- typename Interface::Stub_ stub_;
- Interface* impl_;
- ErrorHandler* error_handler_ = nullptr;
-
- MOJO_DISALLOW_COPY_AND_ASSIGN(Binding);
-};
-
-} // namespace mojo
-
-#endif // MOJO_PUBLIC_CPP_BINDINGS_BINDING_H_