mojo/shell/out_of_process_dynamic_service_runner.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/out_of_process_dynamic_service_runner.h"
   6
   7 #include "base/bind.h"
   8 #include "base/callback_helpers.h"
   9 #include "base/file_util.h"
  10 #include "base/logging.h"
  11 #include "base/scoped_native_library.h"
  12
  13 namespace mojo {
  14 namespace shell {
  15
  16 OutOfProcessDynamicServiceRunner::OutOfProcessDynamicServiceRunner(
  17     Context* context)
  18     : context_(context) {
  19 }
  20
  21 OutOfProcessDynamicServiceRunner::~OutOfProcessDynamicServiceRunner() {
  22   if (app_child_process_host_) {
  23     // TODO(vtl): Race condition: If |AppChildProcessHost::DidStart()| hasn't
  24     // been called yet, we shouldn't call |Join()| here. (Until |DidStart()|, we
  25     // may not have a child process to wait on.) Probably we should fix
  26     // |Join()|.
  27     app_child_process_host_->Join();
  28   }
  29 }
  30
  31 void OutOfProcessDynamicServiceRunner::Start(
  32     const base::FilePath& app_path,
  33     ScopedMessagePipeHandle service_handle,
  34     const base::Closure& app_completed_callback) {
  35   app_path_ = app_path;
  36
  37   DCHECK(!service_handle_.is_valid());
  38   service_handle_ = service_handle.Pass();
  39
  40   DCHECK(app_completed_callback_.is_null());
  41   app_completed_callback_ = app_completed_callback;
  42
  43   app_child_process_host_.reset(new AppChildProcessHost(context_, this));
  44   app_child_process_host_->Start();
  45
  46   // TODO(vtl): |app_path.AsUTF8Unsafe()| is unsafe.
  47   app_child_process_host_->controller()->StartApp(
  48       app_path.AsUTF8Unsafe(),
  49       ScopedMessagePipeHandle(MessagePipeHandle(
  50           service_handle.release().value())));
  51 }
  52
  53 void OutOfProcessDynamicServiceRunner::AppCompleted(int32_t result) {
  54   DVLOG(2) << "OutOfProcessDynamicServiceRunner::AppCompleted(" << result
  55            << ")";
  56
  57   app_completed_callback_.Run();
  58   app_completed_callback_.Reset();
  59   app_child_process_host_.reset();
  60 }
  61
  62 }  // namespace shell
  63 }  // namespace mojo