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| 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/in_process_dynamic_service_runner.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/callback_helpers.h" | |
| 9 #include "base/location.h" | |
| 10 #include "base/message_loop/message_loop_proxy.h" | |
| 11 #include "base/threading/platform_thread.h" | |
| 12 | |
| 13 namespace mojo { | |
| 14 namespace shell { | |
| 15 | |
| 16 InProcessDynamicServiceRunner::InProcessDynamicServiceRunner( | |
| 17 Context* context) : app_library_(nullptr) { | |
| 18 } | |
| 19 | |
| 20 InProcessDynamicServiceRunner::~InProcessDynamicServiceRunner() { | |
| 21 if (thread_) { | |
| 22 DCHECK(thread_->HasBeenStarted()); | |
| 23 DCHECK(!thread_->HasBeenJoined()); | |
| 24 thread_->Join(); | |
| 25 } | |
| 26 | |
| 27 // It is important to let the thread exit before unloading the DSO because | |
| 28 // the library may have registered thread-local data and destructors to run | |
| 29 // on thread termination. | |
| 30 if (app_library_) | |
| 31 base::UnloadNativeLibrary(app_library_); | |
| 32 } | |
| 33 | |
| 34 void InProcessDynamicServiceRunner::Start( | |
| 35 const base::FilePath& app_path, | |
| 36 ScopedMessagePipeHandle service_handle, | |
| 37 const base::Closure& app_completed_callback) { | |
| 38 app_path_ = app_path; | |
| 39 | |
| 40 DCHECK(!service_handle_.is_valid()); | |
| 41 service_handle_ = service_handle.Pass(); | |
| 42 | |
| 43 DCHECK(app_completed_callback_runner_.is_null()); | |
| 44 app_completed_callback_runner_ = base::Bind(&base::TaskRunner::PostTask, | |
| 45 base::MessageLoopProxy::current(), | |
| 46 FROM_HERE, | |
| 47 app_completed_callback); | |
| 48 | |
| 49 DCHECK(!thread_); | |
| 50 thread_.reset(new base::DelegateSimpleThread(this, "app_thread")); | |
| 51 thread_->Start(); | |
| 52 } | |
| 53 | |
| 54 void InProcessDynamicServiceRunner::Run() { | |
| 55 DVLOG(2) << "Loading/running Mojo app in process from library: " | |
| 56 << app_path_.value() | |
| 57 << " thread id=" << base::PlatformThread::CurrentId(); | |
| 58 | |
| 59 app_library_ = LoadAndRunService(app_path_, service_handle_.Pass()); | |
| 60 app_completed_callback_runner_.Run(); | |
| 61 app_completed_callback_runner_.Reset(); | |
| 62 } | |
| 63 | |
| 64 } // namespace shell | |
| 65 } // namespace mojo | |
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