Stop linking in the old Mojo EDK.

ipc/mojo/ipc_channel_mojo.cc

 // 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.
 
 #include "ipc/mojo/ipc_channel_mojo.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/macros.h"
 #include "base/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_logging.h"
 #include "ipc/ipc_message_attachment_set.h"
 #include "ipc/ipc_message_macros.h"
-#include "ipc/mojo/client_channel.mojom.h"
 #include "ipc/mojo/ipc_mojo_bootstrap.h"
 #include "ipc/mojo/ipc_mojo_handle_attachment.h"
+#include "mojo/edk/embedder/embedder.h"
 #include "mojo/public/cpp/bindings/binding.h"
-#include "third_party/mojo/src/mojo/edk/embedder/embedder.h"
 
 #if defined(OS_POSIX) && !defined(OS_NACL)
 #include "ipc/ipc_platform_file_attachment_posix.h"
 #endif
 
 namespace IPC {
 
 namespace {
 
-// TODO(jam): do more tests on using channel on same thread if it supports it (
-// i.e. with use-new-edk and Windows). Also see message_pipe_dispatcher.cc
-bool g_use_channel_on_io_thread_only = true;
-
 class MojoChannelFactory : public ChannelFactory {
  public:
   MojoChannelFactory(scoped_refptr<base::TaskRunner> io_runner,
                      ChannelHandle channel_handle,
                      Channel::Mode mode)
       : io_runner_(io_runner), channel_handle_(channel_handle), mode_(mode) {}
 
   std::string GetName() const override {
     return channel_handle_.name;
   }
 
   scoped_ptr<Channel> BuildChannel(Listener* listener) override {
     return ChannelMojo::Create(io_runner_, channel_handle_, mode_, listener);
   }
 
  private:
   scoped_refptr<base::TaskRunner> io_runner_;
   ChannelHandle channel_handle_;
   Channel::Mode mode_;
 };
 
 //------------------------------------------------------------------------------
 
-class ClientChannelMojo : public ChannelMojo, public ClientChannel {
+class ClientChannelMojo : public ChannelMojo {
  public:
   ClientChannelMojo(scoped_refptr<base::TaskRunner> io_runner,
                     const ChannelHandle& handle,
                     Listener* listener)
-      : ChannelMojo(io_runner, handle, Channel::MODE_CLIENT, listener),
-        binding_(this),
-        weak_factory_(this) {
+      : ChannelMojo(io_runner, handle, Channel::MODE_CLIENT, listener) {
   }
   ~ClientChannelMojo() override {}
 
   // MojoBootstrap::Delegate implementation
-  void OnPipeAvailable(mojo::embedder::ScopedPlatformHandle handle,
+  void OnPipeAvailable(mojo::edk::ScopedPlatformHandle handle,
                        int32_t peer_pid) override {
-    if (base::CommandLine::ForCurrentProcess()->HasSwitch("use-new-edk")) {
-      InitMessageReader(
-          mojo::embedder::CreateChannel(
-              std::move(handle),
-              base::Callback<void(mojo::embedder::ChannelInfo*)>(),
-              scoped_refptr<base::TaskRunner>()),
-          peer_pid);
-      return;
-    }
-    CreateMessagingPipe(
-        std::move(handle),
-        base::Bind(&ClientChannelMojo::BindPipe, weak_factory_.GetWeakPtr()));
-  }
-
-  // ClientChannel implementation
-  void Init(
-      mojo::ScopedMessagePipeHandle pipe,
-      int32_t peer_pid,
-      const mojo::Callback<void(int32_t)>& callback) override {
-    InitMessageReader(std::move(pipe), static_cast<base::ProcessId>(peer_pid));
-   callback.Run(GetSelfPID());
+    InitMessageReader(mojo::edk::CreateMessagePipe(std::move(handle)),
+                      peer_pid);
+    return;
   }
 
  private:
-  void BindPipe(mojo::ScopedMessagePipeHandle handle) {
-    binding_.Bind(std::move(handle));
-  }
-  void OnConnectionError() {
-    listener()->OnChannelError();
-  }
-
-  mojo::Binding<ClientChannel> binding_;
-  base::WeakPtrFactory<ClientChannelMojo> weak_factory_;
-
   DISALLOW_COPY_AND_ASSIGN(ClientChannelMojo);
 };
 
 //------------------------------------------------------------------------------
 
 class ServerChannelMojo : public ChannelMojo {
  public:
   ServerChannelMojo(scoped_refptr<base::TaskRunner> io_runner,
                     const ChannelHandle& handle,
                     Listener* listener)
-      : ChannelMojo(io_runner, handle, Channel::MODE_SERVER, listener),
-        weak_factory_(this) {
+      : ChannelMojo(io_runner, handle, Channel::MODE_SERVER, listener) {
   }
   ~ServerChannelMojo() override {
     Close();
   }
 
   // MojoBootstrap::Delegate implementation
-  void OnPipeAvailable(mojo::embedder::ScopedPlatformHandle handle,
+  void OnPipeAvailable(mojo::edk::ScopedPlatformHandle handle,
                        int32_t peer_pid) override {
-    if (base::CommandLine::ForCurrentProcess()->HasSwitch("use-new-edk")) {
-      message_pipe_ = mojo::embedder::CreateChannel(
-          std::move(handle),
-          base::Callback<void(mojo::embedder::ChannelInfo*)>(),
-          scoped_refptr<base::TaskRunner>());
-      if (!message_pipe_.is_valid()) {
-        LOG(WARNING) << "mojo::CreateMessagePipe failed: ";
-        listener()->OnChannelError();
-        return;
-      }
-      InitMessageReader(std::move(message_pipe_), peer_pid);
+    message_pipe_ = mojo::edk::CreateMessagePipe(std::move(handle));
+    if (!message_pipe_.is_valid()) {
+      LOG(WARNING) << "mojo::CreateMessagePipe failed: ";
+      listener()->OnChannelError();
       return;
     }
 
-    mojo::ScopedMessagePipeHandle peer;
-    MojoResult create_result =
-        mojo::CreateMessagePipe(nullptr, &message_pipe_, &peer);
-    if (create_result != MOJO_RESULT_OK) {
-      LOG(WARNING) << "mojo::CreateMessagePipe failed: " << create_result;
-      listener()->OnChannelError();
-      return;
-    }
-    CreateMessagingPipe(
-        std::move(handle),
-        base::Bind(&ServerChannelMojo::InitClientChannel,
-                   weak_factory_.GetWeakPtr(), base::Passed(&peer)));
-  }
-  // Channel override
-  void Close() override {
-    client_channel_.reset();
-    message_pipe_.reset();
-    ChannelMojo::Close();
-  }
-
- private:
-  void InitClientChannel(mojo::ScopedMessagePipeHandle peer_handle,
-                         mojo::ScopedMessagePipeHandle handle) {
-    client_channel_.Bind(
-        mojo::InterfacePtrInfo<ClientChannel>(std::move(handle), 0u));
-    client_channel_.set_connection_error_handler(base::Bind(
-        &ServerChannelMojo::OnConnectionError, base::Unretained(this)));
-    client_channel_->Init(
-        std::move(peer_handle), static_cast<int32_t>(GetSelfPID()),
-        base::Bind(&ServerChannelMojo::ClientChannelWasInitialized,
-                   base::Unretained(this)));
-  }
-
-  void OnConnectionError() {
-    listener()->OnChannelError();
-  }
-
-  // ClientChannelClient implementation
-  void ClientChannelWasInitialized(int32_t peer_pid) {
     InitMessageReader(std::move(message_pipe_), peer_pid);
   }
 
-  mojo::InterfacePtr<ClientChannel> client_channel_;
   mojo::ScopedMessagePipeHandle message_pipe_;
-  base::WeakPtrFactory<ServerChannelMojo> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServerChannelMojo);
 };
 
 #if defined(OS_POSIX) && !defined(OS_NACL)
 
 base::ScopedFD TakeOrDupFile(internal::PlatformFileAttachment* attachment) {
   return attachment->Owns() ? base::ScopedFD(attachment->TakePlatformFile())
                             : base::ScopedFD(dup(attachment->file()));
 }
 
 #endif
 
 }  // namespace
 
 //------------------------------------------------------------------------------
 
-ChannelMojo::ChannelInfoDeleter::ChannelInfoDeleter(
-    scoped_refptr<base::TaskRunner> io_runner)
-    : io_runner(io_runner) {
-}
-
-ChannelMojo::ChannelInfoDeleter::~ChannelInfoDeleter() {
-}
-
-void ChannelMojo::ChannelInfoDeleter::operator()(
-    mojo::embedder::ChannelInfo* ptr) const {
-  if (base::ThreadTaskRunnerHandle::Get() == io_runner) {
-    mojo::embedder::DestroyChannelOnIOThread(ptr);
-  } else {
-    io_runner->PostTask(
-        FROM_HERE, base::Bind(&mojo::embedder::DestroyChannelOnIOThread, ptr));
-  }
-}
-
-//------------------------------------------------------------------------------
-
 // static
 bool ChannelMojo::ShouldBeUsed() {
   // TODO(rockot): Investigate performance bottlenecks and hopefully reenable
   // this at some point. http://crbug.com/500019
   return false;
 }
 
 // static
 scoped_ptr<ChannelMojo> ChannelMojo::Create(
     scoped_refptr<base::TaskRunner> io_runner,
@@ skipping 29 matching lines @@
       new MojoChannelFactory(io_runner, channel_handle, Channel::MODE_CLIENT));
 }
 
 ChannelMojo::ChannelMojo(scoped_refptr<base::TaskRunner> io_runner,
                          const ChannelHandle& handle,
                          Mode mode,
                          Listener* listener)
     : listener_(listener),
       peer_pid_(base::kNullProcessId),
       io_runner_(io_runner),
-      channel_info_(nullptr, ChannelInfoDeleter(nullptr)),
       waiting_connect_(true),
       weak_factory_(this) {
   // Create MojoBootstrap after all members are set as it touches
   // ChannelMojo from a different thread.
   bootstrap_ = MojoBootstrap::Create(handle, mode, this);
-  if (!g_use_channel_on_io_thread_only ||
-      io_runner == base::MessageLoop::current()->task_runner()) {
+  if (io_runner == base::MessageLoop::current()->task_runner()) {
     InitOnIOThread();
   } else {
     io_runner->PostTask(FROM_HERE, base::Bind(&ChannelMojo::InitOnIOThread,
                                               base::Unretained(this)));
   }
 }
 
 ChannelMojo::~ChannelMojo() {
   Close();
 }
 
 void ChannelMojo::InitOnIOThread() {
   ipc_support_.reset(
       new ScopedIPCSupport(base::MessageLoop::current()->task_runner()));
 }
 
-void ChannelMojo::CreateMessagingPipe(
-    mojo::embedder::ScopedPlatformHandle handle,
-    const CreateMessagingPipeCallback& callback) {
-  auto return_callback = base::Bind(&ChannelMojo::OnMessagingPipeCreated,
-                                    weak_factory_.GetWeakPtr(), callback);
-  if (!g_use_channel_on_io_thread_only ||
-      base::ThreadTaskRunnerHandle::Get() == io_runner_) {
-    CreateMessagingPipeOnIOThread(std::move(handle),
-                                  base::ThreadTaskRunnerHandle::Get(),
-                                  return_callback);
-  } else {
-    io_runner_->PostTask(
-        FROM_HERE,
-        base::Bind(&ChannelMojo::CreateMessagingPipeOnIOThread,
-                   base::Passed(&handle), base::ThreadTaskRunnerHandle::Get(),
-                   return_callback));
-  }
-}
-
-// static
-void ChannelMojo::CreateMessagingPipeOnIOThread(
-    mojo::embedder::ScopedPlatformHandle handle,
-    scoped_refptr<base::TaskRunner> callback_runner,
-    const CreateMessagingPipeOnIOThreadCallback& callback) {
-  mojo::embedder::ChannelInfo* channel_info;
-  mojo::ScopedMessagePipeHandle pipe =
-      mojo::embedder::CreateChannelOnIOThread(std::move(handle), &channel_info);
-  if (base::ThreadTaskRunnerHandle::Get() == callback_runner) {
-    callback.Run(std::move(pipe), channel_info);
-  } else {
-    callback_runner->PostTask(
-        FROM_HERE, base::Bind(callback, base::Passed(&pipe), channel_info));
-  }
-}
-
-void ChannelMojo::OnMessagingPipeCreated(
-    const CreateMessagingPipeCallback& callback,
-    mojo::ScopedMessagePipeHandle handle,
-    mojo::embedder::ChannelInfo* channel_info) {
-  DCHECK(!channel_info_.get());
-  channel_info_ = scoped_ptr<mojo::embedder::ChannelInfo, ChannelInfoDeleter>(
-      channel_info, ChannelInfoDeleter(io_runner_));
-  callback.Run(std::move(handle));
-}
-
 bool ChannelMojo::Connect() {
   DCHECK(!message_reader_);
   return bootstrap_->Connect();
 }
 
 void ChannelMojo::Close() {
   scoped_ptr<internal::MessagePipeReader, ReaderDeleter> to_be_deleted;
 
   {
     // |message_reader_| has to be cleared inside the lock,
     // but the instance has to be deleted outside.
     base::AutoLock l(lock_);
     to_be_deleted = std::move(message_reader_);
     // We might Close() before we Connect().
     waiting_connect_ = false;
   }
 
-  channel_info_.reset();
   ipc_support_.reset();
   to_be_deleted.reset();
 }
 
 void ChannelMojo::OnBootstrapError() {
   listener_->OnChannelError();
 }
 
 namespace {
 
@@ skipping 114 matching lines @@
           base::ScopedFD file =
               TakeOrDupFile(static_cast<IPC::internal::PlatformFileAttachment*>(
                   attachment.get()));
           if (!file.is_valid()) {
             DPLOG(WARNING) << "Failed to dup FD to transmit.";
             set->CommitAllDescriptors();
             return MOJO_RESULT_UNKNOWN;
           }
 
           MojoHandle wrapped_handle;
-          MojoResult wrap_result = mojo::embedder::CreatePlatformHandleWrapper(
-              mojo::embedder::ScopedPlatformHandle(
-                  mojo::embedder::PlatformHandle(file.release())),
+          MojoResult wrap_result = mojo::edk::CreatePlatformHandleWrapper(
+              mojo::edk::ScopedPlatformHandle(
+                  mojo::edk::PlatformHandle(file.release())),
               &wrapped_handle);
           if (MOJO_RESULT_OK != wrap_result) {
             LOG(WARNING) << "Pipe failed to wrap handles. Closing: "
                          << wrap_result;
             set->CommitAllDescriptors();
             return wrap_result;
           }
 
           handles->push_back(wrapped_handle);
         }
@@ skipping 33 matching lines @@
     if (!ok) {
       LOG(ERROR) << "Failed to add new Mojo handle.";
       return MOJO_RESULT_UNKNOWN;
     }
   }
 
   return MOJO_RESULT_OK;
 }
 
 }  // namespace IPC