a9947c2ff6
BUG=597124 Review URL: https://codereview.chromium.org/1877743002 Cr-Commit-Position: refs/heads/master@{#386584}
132 lines
4.3 KiB
C++
132 lines
4.3 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CONTENT_BROWSER_UTILITY_PROCESS_HOST_IMPL_H_
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#define CONTENT_BROWSER_UTILITY_PROCESS_HOST_IMPL_H_
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#include <memory>
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#include <string>
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#include <vector>
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#include "base/compiler_specific.h"
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#include "base/files/file_path.h"
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#include "base/macros.h"
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#include "base/memory/ref_counted.h"
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#include "base/memory/weak_ptr.h"
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#include "build/build_config.h"
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#include "content/public/browser/browser_child_process_host_delegate.h"
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#include "content/public/browser/utility_process_host.h"
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namespace base {
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class SequencedTaskRunner;
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class Thread;
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}
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namespace content {
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class BrowserChildProcessHostImpl;
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class InProcessChildThreadParams;
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class MojoApplicationHost;
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typedef base::Thread* (*UtilityMainThreadFactoryFunction)(
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const InProcessChildThreadParams&);
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class CONTENT_EXPORT UtilityProcessHostImpl
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: public NON_EXPORTED_BASE(UtilityProcessHost),
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public BrowserChildProcessHostDelegate {
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public:
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static void RegisterUtilityMainThreadFactory(
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UtilityMainThreadFactoryFunction create);
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UtilityProcessHostImpl(
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const scoped_refptr<UtilityProcessHostClient>& client,
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const scoped_refptr<base::SequencedTaskRunner>& client_task_runner);
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~UtilityProcessHostImpl() override;
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// UtilityProcessHost implementation:
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base::WeakPtr<UtilityProcessHost> AsWeakPtr() override;
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bool Send(IPC::Message* message) override;
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bool StartBatchMode() override;
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void EndBatchMode() override;
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void SetExposedDir(const base::FilePath& dir) override;
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void DisableSandbox() override;
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#if defined(OS_WIN)
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void ElevatePrivileges() override;
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#endif
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const ChildProcessData& GetData() override;
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#if defined(OS_POSIX)
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void SetEnv(const base::EnvironmentMap& env) override;
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#endif
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bool Start() override;
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ServiceRegistry* GetServiceRegistry() override;
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void SetName(const base::string16& name) override;
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void set_child_flags(int flags) { child_flags_ = flags; }
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#if defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
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// Launch the zygote early in the browser startup.
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static void EarlyZygoteLaunch();
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#endif // defined(OS_POSIX) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
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private:
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// Starts a process if necessary. Returns true if it succeeded or a process
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// has already been started via StartBatchMode().
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bool StartProcess();
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// BrowserChildProcessHost:
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bool OnMessageReceived(const IPC::Message& message) override;
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void OnProcessLaunchFailed() override;
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void OnProcessCrashed(int exit_code) override;
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// Cleans up |this| as a result of a failed Start().
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void NotifyAndDelete();
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// Notifies the client that the launch failed and deletes |host|.
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static void NotifyLaunchFailedAndDelete(
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base::WeakPtr<UtilityProcessHostImpl> host);
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// A pointer to our client interface, who will be informed of progress.
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scoped_refptr<UtilityProcessHostClient> client_;
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scoped_refptr<base::SequencedTaskRunner> client_task_runner_;
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// True when running in batch mode, i.e., StartBatchMode() has been called
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// and the utility process will run until EndBatchMode().
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bool is_batch_mode_;
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base::FilePath exposed_dir_;
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// Whether to pass switches::kNoSandbox to the child.
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bool no_sandbox_;
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// Whether to launch the process with elevated privileges.
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bool run_elevated_;
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// Flags defined in ChildProcessHost with which to start the process.
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int child_flags_;
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base::EnvironmentMap env_;
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bool started_;
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// A user-visible name identifying this process. Used to indentify this
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// process in the task manager.
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base::string16 name_;
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std::unique_ptr<BrowserChildProcessHostImpl> process_;
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// Used in single-process mode instead of process_.
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std::unique_ptr<base::Thread> in_process_thread_;
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// Browser-side Mojo endpoint which sets up a Mojo channel with the child
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// process and contains the browser's ServiceRegistry.
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std::unique_ptr<MojoApplicationHost> mojo_application_host_;
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// Used to vend weak pointers, and should always be declared last.
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base::WeakPtrFactory<UtilityProcessHostImpl> weak_ptr_factory_;
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DISALLOW_COPY_AND_ASSIGN(UtilityProcessHostImpl);
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};
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} // namespace content
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#endif // CONTENT_BROWSER_UTILITY_PROCESS_HOST_IMPL_H_
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