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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CHROME_BROWSER_PROCESS_SINGLETON_H_ | 5 #ifndef CHROME_BROWSER_PROCESS_SINGLETON_H_ |
| 6 #define CHROME_BROWSER_PROCESS_SINGLETON_H_ | 6 #define CHROME_BROWSER_PROCESS_SINGLETON_H_ |
| 7 | 7 |
| 8 #include "build/build_config.h" | 8 #include "build/build_config.h" |
| 9 | 9 |
| 10 #if defined(OS_WIN) | 10 #if defined(OS_WIN) |
| 11 #include <windows.h> | 11 #include <windows.h> |
| 12 #endif // defined(OS_WIN) | 12 #endif // defined(OS_WIN) |
| 13 | 13 |
| 14 #include <set> | 14 #include <set> |
| 15 #include <vector> | 15 #include <vector> |
| 16 | 16 |
| 17 #include "base/basictypes.h" | 17 #include "base/basictypes.h" |
| 18 #include "base/callback.h" | 18 #include "base/callback.h" |
| 19 #include "base/command_line.h" | 19 #include "base/command_line.h" |
| 20 #include "base/files/file_path.h" | 20 #include "base/files/file_path.h" |
| 21 #include "base/logging.h" | 21 #include "base/logging.h" |
| 22 #include "base/memory/ref_counted.h" | 22 #include "base/memory/ref_counted.h" |
| 23 #include "base/process/process.h" | 23 #include "base/process/process.h" |
| 24 #include "base/threading/non_thread_safe.h" | 24 #include "base/threading/non_thread_safe.h" |
| 25 #include "ui/gfx/native_widget_types.h" | 25 #include "ui/gfx/native_widget_types.h" |
| 26 | 26 |
| 27 #if defined(OS_POSIX) && !defined(OS_ANDROID) | 27 #if defined(OS_POSIX) && (!defined(OS_ANDROID) || defined(USE_AURA)) |
| 28 #include "base/files/scoped_temp_dir.h" | 28 #include "base/files/scoped_temp_dir.h" |
| 29 #endif | 29 #endif |
| 30 | 30 |
| 31 #if defined(OS_WIN) | 31 #if defined(OS_WIN) |
| 32 #include "base/win/message_window.h" | 32 #include "base/win/message_window.h" |
| 33 #endif // defined(OS_WIN) | 33 #endif // defined(OS_WIN) |
| 34 | 34 |
| 35 namespace base { | 35 namespace base { |
| 36 class CommandLine; | 36 class CommandLine; |
| 37 } | 37 } |
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| 82 // false is returned, we are not the singleton instance and the caller must | 82 // false is returned, we are not the singleton instance and the caller must |
| 83 // exit. | 83 // exit. |
| 84 // NOTE: Most callers should generally prefer NotifyOtherProcessOrCreate() to | 84 // NOTE: Most callers should generally prefer NotifyOtherProcessOrCreate() to |
| 85 // this method, only callers for whom failure is preferred to notifying | 85 // this method, only callers for whom failure is preferred to notifying |
| 86 // another process should call this directly. | 86 // another process should call this directly. |
| 87 bool Create(); | 87 bool Create(); |
| 88 | 88 |
| 89 // Clear any lock state during shutdown. | 89 // Clear any lock state during shutdown. |
| 90 void Cleanup(); | 90 void Cleanup(); |
| 91 | 91 |
| 92 #if defined(OS_POSIX) && !defined(OS_ANDROID) | 92 #if defined(OS_POSIX) && (!defined(OS_ANDROID) || defined(USE_AURA)) |
| 93 static void DisablePromptForTesting(); | 93 static void DisablePromptForTesting(); |
| 94 #endif | 94 #endif |
| 95 #if defined(OS_WIN) | 95 #if defined(OS_WIN) |
| 96 // Called to query whether to kill a hung browser process that has visible | 96 // Called to query whether to kill a hung browser process that has visible |
| 97 // windows. Return true to allow killing the hung process. | 97 // windows. Return true to allow killing the hung process. |
| 98 using ShouldKillRemoteProcessCallback = base::Callback<bool()>; | 98 using ShouldKillRemoteProcessCallback = base::Callback<bool()>; |
| 99 void OverrideShouldKillRemoteProcessCallbackForTesting( | 99 void OverrideShouldKillRemoteProcessCallbackForTesting( |
| 100 const ShouldKillRemoteProcessCallback& display_dialog_callback); | 100 const ShouldKillRemoteProcessCallback& display_dialog_callback); |
| 101 #endif | 101 #endif |
| 102 | 102 |
| 103 protected: | 103 protected: |
| 104 // Notify another process, if available. | 104 // Notify another process, if available. |
| 105 // Returns true if another process was found and notified, false if we should | 105 // Returns true if another process was found and notified, false if we should |
| 106 // continue with the current process. | 106 // continue with the current process. |
| 107 // On Windows, Create() has to be called before this. | 107 // On Windows, Create() has to be called before this. |
| 108 NotifyResult NotifyOtherProcess(); | 108 NotifyResult NotifyOtherProcess(); |
| 109 | 109 |
| 110 #if defined(OS_POSIX) && !defined(OS_ANDROID) | 110 #if defined(OS_POSIX) && (!defined(OS_ANDROID) || defined(USE_AURA)) |
| 111 // Exposed for testing. We use a timeout on Linux, and in tests we want | 111 // Exposed for testing. We use a timeout on Linux, and in tests we want |
| 112 // this timeout to be short. | 112 // this timeout to be short. |
| 113 NotifyResult NotifyOtherProcessWithTimeout( | 113 NotifyResult NotifyOtherProcessWithTimeout( |
| 114 const base::CommandLine& command_line, | 114 const base::CommandLine& command_line, |
| 115 int retry_attempts, | 115 int retry_attempts, |
| 116 const base::TimeDelta& timeout, | 116 const base::TimeDelta& timeout, |
| 117 bool kill_unresponsive); | 117 bool kill_unresponsive); |
| 118 NotifyResult NotifyOtherProcessWithTimeoutOrCreate( | 118 NotifyResult NotifyOtherProcessWithTimeoutOrCreate( |
| 119 const base::CommandLine& command_line, | 119 const base::CommandLine& command_line, |
| 120 int retry_attempts, | 120 int retry_attempts, |
| 121 const base::TimeDelta& timeout); | 121 const base::TimeDelta& timeout); |
| 122 void OverrideCurrentPidForTesting(base::ProcessId pid); | 122 void OverrideCurrentPidForTesting(base::ProcessId pid); |
| 123 void OverrideKillCallbackForTesting( | 123 void OverrideKillCallbackForTesting( |
| 124 const base::Callback<void(int)>& callback); | 124 const base::Callback<void(int)>& callback); |
| 125 #endif | 125 #endif |
| 126 | 126 |
| 127 private: | 127 private: |
| 128 NotificationCallback notification_callback_; // Handler for notifications. | 128 NotificationCallback notification_callback_; // Handler for notifications. |
| 129 | 129 |
| 130 #if defined(OS_WIN) | 130 #if defined(OS_WIN) |
| 131 bool EscapeVirtualization(const base::FilePath& user_data_dir); | 131 bool EscapeVirtualization(const base::FilePath& user_data_dir); |
| 132 | 132 |
| 133 HWND remote_window_; // The HWND_MESSAGE of another browser. | 133 HWND remote_window_; // The HWND_MESSAGE of another browser. |
| 134 base::win::MessageWindow window_; // The message-only window. | 134 base::win::MessageWindow window_; // The message-only window. |
| 135 bool is_virtualized_; // Stuck inside Microsoft Softricity VM environment. | 135 bool is_virtualized_; // Stuck inside Microsoft Softricity VM environment. |
| 136 HANDLE lock_file_; | 136 HANDLE lock_file_; |
| 137 base::FilePath user_data_dir_; | 137 base::FilePath user_data_dir_; |
| 138 ShouldKillRemoteProcessCallback should_kill_remote_process_callback_; | 138 ShouldKillRemoteProcessCallback should_kill_remote_process_callback_; |
| 139 #elif defined(OS_POSIX) && !defined(OS_ANDROID) | 139 #elif defined(OS_POSIX) && (!defined(OS_ANDROID) || defined(USE_AURA)) |
| 140 // Return true if the given pid is one of our child processes. | 140 // Return true if the given pid is one of our child processes. |
| 141 // Assumes that the current pid is the root of all pids of the current | 141 // Assumes that the current pid is the root of all pids of the current |
| 142 // instance. | 142 // instance. |
| 143 bool IsSameChromeInstance(pid_t pid); | 143 bool IsSameChromeInstance(pid_t pid); |
| 144 | 144 |
| 145 // Extract the process's pid from a symbol link path and if it is on | 145 // Extract the process's pid from a symbol link path and if it is on |
| 146 // the same host, kill the process, unlink the lock file and return true. | 146 // the same host, kill the process, unlink the lock file and return true. |
| 147 // If the process is part of the same chrome instance, unlink the lock file | 147 // If the process is part of the same chrome instance, unlink the lock file |
| 148 // and return true without killing it. | 148 // and return true without killing it. |
| 149 // If the process is on a different host, return false. | 149 // If the process is on a different host, return false. |
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| 174 // Helper class for linux specific messages. LinuxWatcher is ref counted | 174 // Helper class for linux specific messages. LinuxWatcher is ref counted |
| 175 // because it posts messages between threads. | 175 // because it posts messages between threads. |
| 176 class LinuxWatcher; | 176 class LinuxWatcher; |
| 177 scoped_refptr<LinuxWatcher> watcher_; | 177 scoped_refptr<LinuxWatcher> watcher_; |
| 178 #endif | 178 #endif |
| 179 | 179 |
| 180 DISALLOW_COPY_AND_ASSIGN(ProcessSingleton); | 180 DISALLOW_COPY_AND_ASSIGN(ProcessSingleton); |
| 181 }; | 181 }; |
| 182 | 182 |
| 183 #endif // CHROME_BROWSER_PROCESS_SINGLETON_H_ | 183 #endif // CHROME_BROWSER_PROCESS_SINGLETON_H_ |
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