Fold //ipc/mojo into //ipc.

ipc/mojo/ipc_mojo_bootstrap.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_mojo_bootstrap.h"
-
-#include <stdint.h>
-#include <utility>
-
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/memory/ptr_util.h"
-#include "base/process/process_handle.h"
-#include "build/build_config.h"
-#include "ipc/ipc_message_utils.h"
-#include "ipc/ipc_platform_file.h"
-#include "mojo/public/cpp/bindings/binding.h"
-
-namespace IPC {
-
-namespace {
-
-// MojoBootstrap for the server process. You should create the instance
-// using MojoBootstrap::Create().
-class MojoServerBootstrap : public MojoBootstrap {
- public:
-  MojoServerBootstrap();
-
- private:
-  // MojoBootstrap implementation.
-  void Connect() override;
-
-  void OnInitDone(int32_t peer_pid);
-
-  mojom::BootstrapPtr bootstrap_;
-  IPC::mojom::ChannelAssociatedPtrInfo send_channel_;
-  IPC::mojom::ChannelAssociatedRequest receive_channel_request_;
-
-  DISALLOW_COPY_AND_ASSIGN(MojoServerBootstrap);
-};
-
-MojoServerBootstrap::MojoServerBootstrap() = default;
-
-void MojoServerBootstrap::Connect() {
-  DCHECK_EQ(state(), STATE_INITIALIZED);
-
-  bootstrap_.Bind(mojom::BootstrapPtrInfo(TakeHandle(), 0));
-  bootstrap_.set_connection_error_handler(
-      base::Bind(&MojoServerBootstrap::Fail, base::Unretained(this)));
-
-  IPC::mojom::ChannelAssociatedRequest send_channel_request;
-  IPC::mojom::ChannelAssociatedPtrInfo receive_channel;
-
-  bootstrap_.associated_group()->CreateAssociatedInterface(
-      mojo::AssociatedGroup::WILL_PASS_REQUEST, &send_channel_,
-      &send_channel_request);
-  bootstrap_.associated_group()->CreateAssociatedInterface(
-      mojo::AssociatedGroup::WILL_PASS_PTR, &receive_channel,
-      &receive_channel_request_);
-
-  bootstrap_->Init(
-      std::move(send_channel_request), std::move(receive_channel),
-      GetSelfPID(),
-      base::Bind(&MojoServerBootstrap::OnInitDone, base::Unretained(this)));
-
-  set_state(STATE_WAITING_ACK);
-}
-
-void MojoServerBootstrap::OnInitDone(int32_t peer_pid) {
-  if (state() != STATE_WAITING_ACK) {
-    set_state(STATE_ERROR);
-    LOG(ERROR) << "Got inconsistent message from client.";
-    return;
-  }
-
-  set_state(STATE_READY);
-  bootstrap_.set_connection_error_handler(mojo::Closure());
-  delegate()->OnPipesAvailable(std::move(send_channel_),
-                               std::move(receive_channel_request_), peer_pid);
-}
-
-// MojoBootstrap for client processes. You should create the instance
-// using MojoBootstrap::Create().
-class MojoClientBootstrap : public MojoBootstrap, public mojom::Bootstrap {
- public:
-  MojoClientBootstrap();
-
- private:
-  // MojoBootstrap implementation.
-  void Connect() override;
-
-  // mojom::Bootstrap implementation.
-  void Init(mojom::ChannelAssociatedRequest receive_channel,
-            mojom::ChannelAssociatedPtrInfo send_channel,
-            int32_t peer_pid,
-            const mojo::Callback<void(int32_t)>& callback) override;
-
-  mojo::Binding<mojom::Bootstrap> binding_;
-
-  DISALLOW_COPY_AND_ASSIGN(MojoClientBootstrap);
-};
-
-MojoClientBootstrap::MojoClientBootstrap() : binding_(this) {}
-
-void MojoClientBootstrap::Connect() {
-  binding_.Bind(TakeHandle());
-  binding_.set_connection_error_handler(
-      base::Bind(&MojoClientBootstrap::Fail, base::Unretained(this)));
-}
-
-void MojoClientBootstrap::Init(mojom::ChannelAssociatedRequest receive_channel,
-                               mojom::ChannelAssociatedPtrInfo send_channel,
-                               int32_t peer_pid,
-                               const mojo::Callback<void(int32_t)>& callback) {
-  callback.Run(GetSelfPID());
-  set_state(STATE_READY);
-  binding_.set_connection_error_handler(mojo::Closure());
-  delegate()->OnPipesAvailable(std::move(send_channel),
-                               std::move(receive_channel), peer_pid);
-}
-
-}  // namespace
-
-// MojoBootstrap
-
-// static
-std::unique_ptr<MojoBootstrap> MojoBootstrap::Create(
-    mojo::ScopedMessagePipeHandle handle,
-    Channel::Mode mode,
-    Delegate* delegate) {
-  CHECK(mode == Channel::MODE_CLIENT || mode == Channel::MODE_SERVER);
-  std::unique_ptr<MojoBootstrap> self =
-      mode == Channel::MODE_CLIENT
-          ? std::unique_ptr<MojoBootstrap>(new MojoClientBootstrap)
-          : std::unique_ptr<MojoBootstrap>(new MojoServerBootstrap);
-
-  self->Init(std::move(handle), delegate);
-  return self;
-}
-
-MojoBootstrap::MojoBootstrap() : delegate_(NULL), state_(STATE_INITIALIZED) {
-}
-
-MojoBootstrap::~MojoBootstrap() {}
-
-void MojoBootstrap::Init(mojo::ScopedMessagePipeHandle handle,
-                         Delegate* delegate) {
-  handle_ = std::move(handle);
-  delegate_ = delegate;
-}
-
-base::ProcessId MojoBootstrap::GetSelfPID() const {
-#if defined(OS_LINUX)
-  if (int global_pid = Channel::GetGlobalPid())
-    return global_pid;
-#endif  // OS_LINUX
-  return base::GetCurrentProcId();
-}
-
-void MojoBootstrap::Fail() {
-  set_state(STATE_ERROR);
-  delegate()->OnBootstrapError();
-}
-
-bool MojoBootstrap::HasFailed() const {
-  return state() == STATE_ERROR;
-}
-
-mojo::ScopedMessagePipeHandle MojoBootstrap::TakeHandle() {
-  return std::move(handle_);
-}
-
-}  // namespace IPC