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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/in_process_renderer_thread.h"
#include "build/build_config.h"
#include "content/public/common/content_client.h"
#include "content/public/renderer/content_renderer_client.h"
#include "content/renderer/render_process.h"
#include "content/renderer/render_process_impl.h"
#include "content/renderer/render_thread_impl.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/public/platform/scheduler/web_thread_scheduler.h"
#if BUILDFLAG(IS_ANDROID)
#include "base/android/jni_android.h"
#endif
namespace content {
InProcessRendererThread::InProcessRendererThread(
const InProcessChildThreadParams& params,
int32_t renderer_client_id)
: Thread("Chrome_InProcRendererThread"),
params_(params),
renderer_client_id_(renderer_client_id) {}
InProcessRendererThread::~InProcessRendererThread() {
Stop();
}
void InProcessRendererThread::Init() {
// In single-process mode, we never enter the sandbox, so run the post-sandbox
// code now.
content::ContentRendererClient* client = GetContentClient()->renderer();
if (client) {
client->PostSandboxInitialized();
}
// Call AttachCurrentThreadWithName, before any other AttachCurrentThread()
// calls. The latter causes Java VM to assign Thread-??? to the thread name.
// Please note calls to AttachCurrentThreadWithName after AttachCurrentThread
// will not change the thread name kept in Java VM.
#if BUILDFLAG(IS_ANDROID)
base::android::AttachCurrentThreadWithName(thread_name());
// Make sure we aren't somehow reinitialising the inprocess renderer thread on
// Android. Temporary CHECK() to debug http://crbug.com/514141
CHECK(!render_process_);
#endif
blink::Platform::InitializeBlink();
std::unique_ptr<blink::scheduler::WebThreadScheduler> main_thread_scheduler =
blink::scheduler::WebThreadScheduler::CreateMainThreadScheduler();
render_process_ = RenderProcessImpl::Create();
// RenderThreadImpl doesn't currently support a proper shutdown sequence
// and it's okay when we're running in multi-process mode because renderers
// get killed by the OS. In-process mode is used for test and debug only.
new RenderThreadImpl(params_, renderer_client_id_,
std::move(main_thread_scheduler));
}
void InProcessRendererThread::CleanUp() {
render_process_.reset();
// It's a little lame to manually set this flag. But the single process
// RendererThread will receive the WM_QUIT. We don't need to assert on
// this thread, so just force the flag manually.
// If we want to avoid this, we could create the InProcRendererThread
// directly with _beginthreadex() rather than using the Thread class.
// We used to set this flag in the Init function above. However there
// other threads like WebThread which are created by this thread
// which resets this flag. Please see Thread::StartWithOptions. Setting
// this flag to true in Cleanup works around these problems.
SetThreadWasQuitProperly(true);
}
base::Thread* CreateInProcessRendererThread(
const InProcessChildThreadParams& params,
int32_t renderer_client_id) {
return new InProcessRendererThread(params, renderer_client_id);
}
} // namespace content
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