src/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/logging.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "mojo/embedder/embedder.h"
  10 #include "mojo/public/cpp/system/core.h"
  11 #include "mojo/shell/context.h"
  12 #include "mojo/shell/task_runners.h"
  13
  14 namespace mojo {
  15 namespace shell {
  16
  17 AppChildProcessHost::AppChildProcessHost(
  18     Context* context,
  19     AppChildControllerClient* controller_client)
  20     : ChildProcessHost(context, this, ChildProcess::TYPE_APP),
  21       controller_client_(controller_client),
  22       channel_info_(NULL) {
  23 }
  24
  25 AppChildProcessHost::~AppChildProcessHost() {
  26 }
  27
  28 void AppChildProcessHost::WillStart() {
  29   DCHECK(platform_channel()->is_valid());
  30
  31   mojo::ScopedMessagePipeHandle handle(embedder::CreateChannel(
  32       platform_channel()->Pass(),
  33       context()->task_runners()->io_runner(),
  34       base::Bind(&AppChildProcessHost::DidCreateChannel,
  35                  base::Unretained(this)),
  36       base::MessageLoop::current()->message_loop_proxy()));
  37
  38   controller_.Bind(handle.Pass());
  39   controller_->SetClient(controller_client_);
  40 }
  41
  42 void AppChildProcessHost::DidStart(bool success) {
  43   DVLOG(2) << "AppChildProcessHost::DidStart()";
  44
  45   if (!success) {
  46     LOG(ERROR) << "Failed to start app child process";
  47     controller_client_->AppCompleted(MOJO_RESULT_UNKNOWN);
  48     return;
  49   }
  50 }
  51
  52 // Callback for |embedder::CreateChannel()|.
  53 void AppChildProcessHost::DidCreateChannel(
  54     embedder::ChannelInfo* channel_info) {
  55   DVLOG(2) << "AppChildProcessHost::DidCreateChannel()";
  56
  57   CHECK(channel_info);
  58   channel_info_ = channel_info;
  59 }
  60
  61 }  // namespace shell
  62 }  // namespace mojo