mojo/shell/app_child_process_host.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "mojo/shell/app_child_process_host.h"
   6
   7 #include "base/bind.h"
   8 #include "base/logging.h"
   9 #include "base/message_loop/message_loop.h"
  10 #include "mojo/embedder/embedder.h"
  11 #include "mojo/public/cpp/system/core.h"
  12 #include "mojo/shell/context.h"
  13 #include "mojo/shell/task_runners.h"
  14
  15 namespace mojo {
  16 namespace shell {
  17
  18 AppChildProcessHost::AppChildProcessHost(
  19     Context* context,
  20     AppChildControllerClient* controller_client)
  21     : ChildProcessHost(context, this, ChildProcess::TYPE_APP),
  22       controller_client_(controller_client),
  23       channel_info_(NULL) {
  24 }
  25
  26 AppChildProcessHost::~AppChildProcessHost() {
  27 }
  28
  29 void AppChildProcessHost::WillStart() {
  30   DCHECK(platform_channel()->is_valid());
  31
  32   mojo::ScopedMessagePipeHandle handle(embedder::CreateChannel(
  33       platform_channel()->Pass(),
  34       context()->task_runners()->io_runner(),
  35       base::Bind(&AppChildProcessHost::DidCreateChannel,
  36                  base::Unretained(this)),
  37       base::MessageLoop::current()->message_loop_proxy()));
  38
  39   controller_.Bind(handle.Pass());
  40   controller_.set_client(controller_client_);
  41 }
  42
  43 void AppChildProcessHost::DidStart(bool success) {
  44   DVLOG(2) << "AppChildProcessHost::DidStart()";
  45
  46   if (!success) {
  47     LOG(ERROR) << "Failed to start app child process";
  48     controller_client_->AppCompleted(MOJO_RESULT_UNKNOWN);
  49     return;
  50   }
  51 }
  52
  53 // Callback for |embedder::CreateChannel()|.
  54 void AppChildProcessHost::DidCreateChannel(
  55     embedder::ChannelInfo* channel_info) {
  56   DVLOG(2) << "AppChildProcessHost::DidCreateChannel()";
  57
  58   CHECK(channel_info);
  59   channel_info_ = channel_info;
  60 }
  61
  62 }  // namespace shell
  63 }  // namespace mojo