| Index: mojo/public/cpp/bindings/lib/interface_impl_internal.h
|
| diff --git a/mojo/public/cpp/bindings/lib/interface_impl_internal.h b/mojo/public/cpp/bindings/lib/interface_impl_internal.h
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..492b1822496749d6d68dea24f71fc866d5193a11
|
| --- /dev/null
|
| +++ b/mojo/public/cpp/bindings/lib/interface_impl_internal.h
|
| @@ -0,0 +1,128 @@
|
| +// 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_LIB_INTERFACE_IMPL_INTERNAL_H_
|
| +#define MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_IMPL_INTERNAL_H_
|
| +
|
| +#include "mojo/public/cpp/bindings/error_handler.h"
|
| +#include "mojo/public/cpp/bindings/interface_ptr.h"
|
| +#include "mojo/public/cpp/bindings/lib/filter_chain.h"
|
| +#include "mojo/public/cpp/bindings/lib/message_header_validator.h"
|
| +#include "mojo/public/cpp/environment/environment.h"
|
| +#include "mojo/public/cpp/environment/logging.h"
|
| +#include "mojo/public/cpp/system/macros.h"
|
| +
|
| +namespace mojo {
|
| +namespace internal {
|
| +
|
| +template <typename Interface>
|
| +class InterfaceImplBase : public Interface {
|
| + public:
|
| + virtual ~InterfaceImplBase() {}
|
| + virtual void OnConnectionEstablished() = 0;
|
| + virtual void OnConnectionError() = 0;
|
| +};
|
| +
|
| +template <typename Interface>
|
| +class InterfaceImplState : public ErrorHandler {
|
| + public:
|
| + typedef typename Interface::Client Client;
|
| +
|
| + explicit InterfaceImplState(InterfaceImplBase<Interface>* instance)
|
| + : router_(nullptr),
|
| + proxy_(nullptr),
|
| + instance_bound_to_pipe_(false)
|
| +#ifndef NDEBUG
|
| + ,
|
| + deleting_instance_due_to_error_(false)
|
| +#endif
|
| + {
|
| + MOJO_DCHECK(instance);
|
| + stub_.set_sink(instance);
|
| + }
|
| +
|
| + virtual ~InterfaceImplState() {
|
| +#ifndef NDEBUG
|
| + MOJO_DCHECK(!instance_bound_to_pipe_ || deleting_instance_due_to_error_);
|
| +#endif
|
| + delete proxy_;
|
| + if (router_) {
|
| + router_->set_error_handler(nullptr);
|
| + delete router_;
|
| + }
|
| + }
|
| +
|
| + void BindProxy(
|
| + InterfacePtr<Interface>* ptr,
|
| + bool instance_bound_to_pipe,
|
| + const MojoAsyncWaiter* waiter = Environment::GetDefaultAsyncWaiter()) {
|
| + MessagePipe pipe;
|
| + ptr->Bind(pipe.handle0.Pass(), waiter);
|
| + Bind(pipe.handle1.Pass(), instance_bound_to_pipe, waiter);
|
| + }
|
| +
|
| + void Bind(ScopedMessagePipeHandle handle,
|
| + bool instance_bound_to_pipe,
|
| + const MojoAsyncWaiter* waiter) {
|
| + MOJO_CHECK(!router_);
|
| +
|
| + FilterChain filters;
|
| + filters.Append<MessageHeaderValidator>();
|
| + filters.Append<typename Interface::RequestValidator_>();
|
| + filters.Append<typename Interface::Client::ResponseValidator_>();
|
| +
|
| + router_ = new Router(handle.Pass(), filters.Pass(), waiter);
|
| + router_->set_incoming_receiver(&stub_);
|
| + router_->set_error_handler(this);
|
| +
|
| + proxy_ = new typename Client::Proxy_(router_);
|
| +
|
| + instance_bound_to_pipe_ = instance_bound_to_pipe;
|
| +
|
| + instance()->OnConnectionEstablished();
|
| + }
|
| +
|
| + bool WaitForIncomingMethodCall() {
|
| + MOJO_DCHECK(router_);
|
| + return router_->WaitForIncomingMessage();
|
| + }
|
| +
|
| + Router* router() { return router_; }
|
| + Client* client() { return proxy_; }
|
| +
|
| + private:
|
| + InterfaceImplBase<Interface>* instance() {
|
| + return static_cast<InterfaceImplBase<Interface>*>(stub_.sink());
|
| + }
|
| +
|
| + virtual void OnConnectionError() override {
|
| + // If the the instance is not bound to the pipe, the instance might choose
|
| + // to delete itself in the OnConnectionError handler, which would in turn
|
| + // delete this. Save the error behavior before invoking the error handler
|
| + // so we can correctly decide what to do.
|
| + bool bound = instance_bound_to_pipe_;
|
| + instance()->OnConnectionError();
|
| + if (!bound)
|
| + return;
|
| +#ifndef NDEBUG
|
| + deleting_instance_due_to_error_ = true;
|
| +#endif
|
| + delete instance();
|
| + }
|
| +
|
| + Router* router_;
|
| + typename Client::Proxy_* proxy_;
|
| + typename Interface::Stub_ stub_;
|
| + bool instance_bound_to_pipe_;
|
| +#ifndef NDEBUG
|
| + bool deleting_instance_due_to_error_;
|
| +#endif
|
| +
|
| + MOJO_DISALLOW_COPY_AND_ASSIGN(InterfaceImplState);
|
| +};
|
| +
|
| +} // namespace internal
|
| +} // namespace mojo
|
| +
|
| +#endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_INTERFACE_IMPL_INTERNAL_H_
|
|
|