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Unified Diff: mojo/public/cpp/bindings/interface_ptr.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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Index: mojo/public/cpp/bindings/interface_ptr.h
diff --git a/mojo/public/cpp/bindings/interface_ptr.h b/mojo/public/cpp/bindings/interface_ptr.h
deleted file mode 100644
index a2ede4d510b04c7f12fd59e8f4e08fd351893fe0..0000000000000000000000000000000000000000
--- a/mojo/public/cpp/bindings/interface_ptr.h
+++ /dev/null
@@ -1,140 +0,0 @@
-// 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_INTERFACE_PTR_H_
-#define MOJO_PUBLIC_CPP_BINDINGS_INTERFACE_PTR_H_
-
-#include <algorithm>
-
-#include "mojo/public/cpp/bindings/error_handler.h"
-#include "mojo/public/cpp/bindings/lib/interface_ptr_internal.h"
-#include "mojo/public/cpp/environment/environment.h"
-#include "mojo/public/cpp/system/macros.h"
-
-namespace mojo {
-class ErrorHandler;
-
-// InterfacePtr represents a proxy to a remote instance of an interface.
-template <typename Interface>
-class InterfacePtr {
- MOJO_MOVE_ONLY_TYPE(InterfacePtr)
- public:
- InterfacePtr() {}
- InterfacePtr(decltype(nullptr)) {}
-
- InterfacePtr(InterfacePtr&& other) {
- internal_state_.Swap(&other.internal_state_);
- }
- InterfacePtr& operator=(InterfacePtr&& other) {
- reset();
- internal_state_.Swap(&other.internal_state_);
- return *this;
- }
-
- InterfacePtr& operator=(decltype(nullptr)) {
- reset();
- return *this;
- }
-
- ~InterfacePtr() {}
-
- Interface* get() const { return internal_state_.instance(); }
- Interface* operator->() const { return get(); }
- Interface& operator*() const { return *get(); }
-
- void reset() {
- State doomed;
- internal_state_.Swap(&doomed);
- }
-
- // Blocks the current thread for the first incoming method call, i.e., either
- // a call to a client method or a callback method. Returns |true| if a method
- // has been called, |false| in case of error. It must only be called on a
- // bound object.
- bool WaitForIncomingMethodCall() {
- return internal_state_.WaitForIncomingMethodCall();
- }
-
- // This method configures the InterfacePtr<..> to be a proxy to a remote
- // object on the other end of the given pipe.
- //
- // The proxy is bound to the current thread, which means its methods may
- // only be called on the current thread.
- //
- // To move a bound InterfacePtr<..> to another thread, call PassMessagePipe().
- // Then create a new InterfacePtr<..> on another thread, and bind the new
- // InterfacePtr<..> to the message pipe on that thread.
- void Bind(
- ScopedMessagePipeHandle handle,
- const MojoAsyncWaiter* waiter = Environment::GetDefaultAsyncWaiter()) {
- reset();
- internal_state_.Bind(handle.Pass(), waiter);
- }
-
- // The client interface may only be set after this InterfacePtr<..> is bound.
- void set_client(typename Interface::Client* client) {
- internal_state_.set_client(client);
- }
-
- // This method may be called to query if the underlying pipe has encountered
- // an error. If true, this means method calls made on this interface will be
- // dropped (and may have already been dropped) on the floor.
- bool encountered_error() const { return internal_state_.encountered_error(); }
-
- // This method may be called to register an ErrorHandler to observe a
- // connection error on the underlying pipe. It must only be called on a bound
- // object.
- // The callback runs asynchronously from the current message loop.
- void set_error_handler(ErrorHandler* error_handler) {
- internal_state_.set_error_handler(error_handler);
- }
-
- // Returns the underlying message pipe handle (if any) and resets the
- // InterfacePtr<..> to its uninitialized state. This method is helpful if you
- // need to move a proxy to another thread. See related notes for Bind.
- ScopedMessagePipeHandle PassMessagePipe() {
- State state;
- internal_state_.Swap(&state);
- return state.PassMessagePipe();
- }
-
- // DO NOT USE. Exposed only for internal use and for testing.
- internal::InterfacePtrState<Interface>* internal_state() {
- return &internal_state_;
- }
-
- // Allow InterfacePtr<> to be used in boolean expressions, but not
- // implicitly convertible to a real bool (which is dangerous).
- private:
- typedef internal::InterfacePtrState<Interface> InterfacePtr::*Testable;
-
- public:
- operator Testable() const {
- return internal_state_.is_bound() ? &InterfacePtr::internal_state_
- : nullptr;
- }
-
- private:
- typedef internal::InterfacePtrState<Interface> State;
- mutable State internal_state_;
-};
-
-// Takes a handle to the proxy end-point of a pipe. On the other end is
-// presumed to be an interface implementation of type |Interface|. Returns a
-// generated proxy to that interface, which may be used on the current thread.
-// It is valid to call set_client on the returned InterfacePtr<..> to set an
-// instance of Interface::Client.
-template <typename Interface>
-InterfacePtr<Interface> MakeProxy(
- ScopedMessagePipeHandle handle,
- const MojoAsyncWaiter* waiter = Environment::GetDefaultAsyncWaiter()) {
- InterfacePtr<Interface> ptr;
- if (handle.is_valid())
- ptr.Bind(handle.Pass(), waiter);
- return ptr.Pass();
-}
-
-} // namespace mojo
-
-#endif // MOJO_PUBLIC_CPP_BINDINGS_INTERFACE_PTR_H_
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