mojo/shell/out_of_process_native_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_native_runner.h"
   6
   7 #include "base/bind.h"
   8 #include "base/callback_helpers.h"
   9 #include "base/files/file_util.h"
  10 #include "base/logging.h"
  11 #include "mojo/shell/child_process.mojom.h"
  12 #include "mojo/shell/child_process_host.h"
  13 #include "mojo/shell/in_process_native_runner.h"
  14
  15 namespace mojo {
  16 namespace shell {
  17
  18 OutOfProcessNativeRunner::OutOfProcessNativeRunner(Context* context)
  19     : context_(context) {
  20 }
  21
  22 OutOfProcessNativeRunner::~OutOfProcessNativeRunner() {
  23   if (child_process_host_) {
  24     // TODO(vtl): Race condition: If |ChildProcessHost::DidStart()| hasn't been
  25     // called yet, we shouldn't call |Join()| here. (Until |DidStart()|, we may
  26     // not have a child process to wait on.) Probably we should fix |Join()|.
  27     child_process_host_->Join();
  28   }
  29 }
  30
  31 void OutOfProcessNativeRunner::Start(
  32     const base::FilePath& app_path,
  33     NativeApplicationCleanup cleanup,
  34     InterfaceRequest<Application> application_request,
  35     const base::Closure& app_completed_callback) {
  36   app_path_ = app_path;
  37
  38   DCHECK(app_completed_callback_.is_null());
  39   app_completed_callback_ = app_completed_callback;
  40
  41   child_process_host_.reset(new ChildProcessHost(context_));
  42   child_process_host_->Start();
  43
  44   // TODO(vtl): |app_path.AsUTF8Unsafe()| is unsafe.
  45   child_process_host_->StartApp(
  46       app_path.AsUTF8Unsafe(), cleanup == NativeApplicationCleanup::DELETE,
  47       application_request.Pass(),
  48       base::Bind(&OutOfProcessNativeRunner::AppCompleted,
  49                  base::Unretained(this)));
  50 }
  51
  52 void OutOfProcessNativeRunner::AppCompleted(int32_t result) {
  53   DVLOG(2) << "OutOfProcessNativeRunner::AppCompleted(" << result << ")";
  54
  55   child_process_host_.reset();
  56   // This object may be deleted by this callback.
  57   base::Closure app_completed_callback = app_completed_callback_;
  58   app_completed_callback_.Reset();
  59   app_completed_callback.Run();
  60 }
  61
  62 scoped_ptr<NativeRunner> OutOfProcessNativeRunnerFactory::Create(
  63     const Options& options) {
  64   if (options.force_in_process)
  65     return make_scoped_ptr(new InProcessNativeRunner(context_));
  66
  67   return make_scoped_ptr(new OutOfProcessNativeRunner(context_));
  68 }
  69
  70 }  // namespace shell
  71 }  // namespace mojo