1c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Copyright (c) 2013 The Chromium Authors. All rights reserved. 2c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 3c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// found in the LICENSE file. 4c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 5c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#ifndef CHROME_BROWSER_PROCESS_SINGLETON_STARTUP_LOCK_H_ 6c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#define CHROME_BROWSER_PROCESS_SINGLETON_STARTUP_LOCK_H_ 7c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 8c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include <set> 9c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include <utility> 10c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include <vector> 11c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 12c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/basictypes.h" 13c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/command_line.h" 14c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/files/file_path.h" 15c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/threading/non_thread_safe.h" 16c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "chrome/browser/process_singleton.h" 17c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 18c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Provides a ProcessSingleton::NotificationCallback that can queue up 19c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// command-line invocations during startup and execute them when startup 20c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// completes. 21c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// 22c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// The object starts in a locked state. |Unlock()| must be called 23c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// when the process is prepared to handle command-line invocations. 24c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// 25c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// Once unlocked, notifications are forwarded to a wrapped NotificationCallback. 26c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)class ProcessSingletonStartupLock : public base::NonThreadSafe { 27c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) public: 28c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) explicit ProcessSingletonStartupLock( 29c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const ProcessSingleton::NotificationCallback& original_callback); 30c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ~ProcessSingletonStartupLock(); 31c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 32c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Returns the ProcessSingleton::NotificationCallback. 33c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // The callback is only valid during the lifetime of the 34c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // ProcessSingletonStartupLock instance. 35c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ProcessSingleton::NotificationCallback AsNotificationCallback(); 36c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 37c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // Executes previously queued command-line invocations and allows future 38c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) // invocations to be executed immediately. 39c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) void Unlock(); 40c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 41c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) bool locked() { return locked_; } 42c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 43c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) private: 44a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) typedef std::pair<base::CommandLine::StringVector, base::FilePath> 45c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DelayedStartupMessage; 46c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 47a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) bool NotificationCallbackImpl(const base::CommandLine& command_line, 48c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const base::FilePath& current_directory); 49c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 50c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) bool locked_; 51c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) std::vector<DelayedStartupMessage> saved_startup_messages_; 52c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ProcessSingleton::NotificationCallback original_callback_; 53c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 54c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ProcessSingletonStartupLock); 55c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 56c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 57c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#endif // CHROME_BROWSER_PROCESS_SINGLETON_STARTUP_LOCK_H_ 58