blob: e92d3f2969399df9e3ba09fa4b2fc73f473142b4 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include <string>
#include <vector>
#include "base/compiler_specific.h"
#include "base/files/file_path.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "build/build_config.h"
#include "content/public/browser/browser_child_process_host_delegate.h"
#include "content/public/browser/utility_process_host.h"
namespace base {
class SequencedTaskRunner;
class Thread;
namespace content {
class BrowserChildProcessHostImpl;
class InProcessChildThreadParams;
class MojoApplicationHost;
typedef base::Thread* (*UtilityMainThreadFactoryFunction)(
const InProcessChildThreadParams&);
class CONTENT_EXPORT UtilityProcessHostImpl
: public NON_EXPORTED_BASE(UtilityProcessHost),
public BrowserChildProcessHostDelegate {
static void RegisterUtilityMainThreadFactory(
UtilityMainThreadFactoryFunction create);
const scoped_refptr<UtilityProcessHostClient>& client,
const scoped_refptr<base::SequencedTaskRunner>& client_task_runner);
~UtilityProcessHostImpl() override;
// UtilityProcessHost implementation:
base::WeakPtr<UtilityProcessHost> AsWeakPtr() override;
bool Send(IPC::Message* message) override;
bool StartBatchMode() override;
void EndBatchMode() override;
void SetExposedDir(const base::FilePath& dir) override;
void DisableSandbox() override;
#if defined(OS_WIN)
void ElevatePrivileges() override;
const ChildProcessData& GetData() override;
#if defined(OS_POSIX)
void SetEnv(const base::EnvironmentMap& env) override;
bool Start() override;
ServiceRegistry* GetServiceRegistry() override;
void SetName(const base::string16& name) override;
void set_child_flags(int flags) { child_flags_ = flags; }
#if defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
// Launch the zygote early in the browser startup.
static void EarlyZygoteLaunch();
#endif // defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
// Starts a process if necessary. Returns true if it succeeded or a process
// has already been started via StartBatchMode().
bool StartProcess();
// BrowserChildProcessHost:
bool OnMessageReceived(const IPC::Message& message) override;
void OnProcessLaunchFailed() override;
void OnProcessCrashed(int exit_code) override;
// Cleans up |this| as a result of a failed Start().
void NotifyAndDelete();
// Notifies the client that the launch failed and deletes |host|.
static void NotifyLaunchFailedAndDelete(
base::WeakPtr<UtilityProcessHostImpl> host);
// A pointer to our client interface, who will be informed of progress.
scoped_refptr<UtilityProcessHostClient> client_;
scoped_refptr<base::SequencedTaskRunner> client_task_runner_;
// True when running in batch mode, i.e., StartBatchMode() has been called
// and the utility process will run until EndBatchMode().
bool is_batch_mode_;
base::FilePath exposed_dir_;
// Whether to pass switches::kNoSandbox to the child.
bool no_sandbox_;
// Whether to launch the process with elevated privileges.
bool run_elevated_;
// Flags defined in ChildProcessHost with which to start the process.
int child_flags_;
base::EnvironmentMap env_;
bool started_;
// A user-visible name identifying this process. Used to indentify this
// process in the task manager.
base::string16 name_;
std::unique_ptr<BrowserChildProcessHostImpl> process_;
// Used in single-process mode instead of process_.
std::unique_ptr<base::Thread> in_process_thread_;
// Browser-side Mojo endpoint which sets up a Mojo channel with the child
// process and contains the browser's ServiceRegistry.
std::unique_ptr<MojoApplicationHost> mojo_application_host_;
// Used to vend weak pointers, and should always be declared last.
base::WeakPtrFactory<UtilityProcessHostImpl> weak_ptr_factory_;
} // namespace content