Paul Davis
5122036054
In some startup flows, the entire loading process happens inside StartupFSM::start(). In others, that call gets things moving but we return from it and loading is not complete until later. Deleting the StartupFSM while still inside the ::start() call led to a use-after-free error. This new code will leak the StartupFSM in some startup flows.
136 lines
3.7 KiB
C++
136 lines
3.7 KiB
C++
/*
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* Copyright (C) 2019 Paul Davis <paul@linuxaudiosystems.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __gtk2_ardour_startup_fsm_h__
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#define __gtk2_ardour_startup_fsm_h__
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#include <string>
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#include <sigc++/trackable.h>
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#include "ardour/types.h"
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class ArdourDialog;
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class NewUserWizard;
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class EngineControl;
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class SessionDialog;
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class PluginScanDialog;
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class StartupFSM : public sigc::trackable
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{
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public:
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enum DialogID {
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PreReleaseDialog,
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NewUserDialog,
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NewSessionDialog,
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AudioMIDISetup,
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PluginDialog,
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ApplicationPseudoDialog,
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};
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enum Result {
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LoadSession,
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ExitProgram,
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QuitProgram,
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};
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enum MainState {
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NotWaiting,
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WaitingForPreRelease,
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WaitingForNewUser,
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WaitingForSessionPath,
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WaitingForEngineParams,
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WaitingForPlugins
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};
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StartupFSM (EngineControl&);
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~StartupFSM ();
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void start ();
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void reset ();
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std::string session_path;
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std::string session_name;
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std::string session_template;
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Temporal::TimeDomain session_domain;
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int session_existing_sample_rate;
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XMLNode session_engine_hints;
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bool session_is_new;
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bool session_name_edited;
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ARDOUR::BusProfile bus_profile;
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/* It's not a dialog but we provide this to make it behave like a (non-modal)
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* dialog
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*/
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sigc::signal1<void,Result>& signal_response() { return _signal_response; }
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bool brand_new_user() const { return new_user; }
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void handle_path (std::string const & path);
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bool complete() const { return _state == NotWaiting; }
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void set_complete () { _state = NotWaiting; }
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private:
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bool new_user;
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bool new_session_required;
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MainState _state;
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void set_state (MainState);
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void dialog_response_handler (int response, DialogID);
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template<typename T> void end_dialog (T**);
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template<typename T> void end_dialog (T&);
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void show_new_user_dialog ();
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void show_session_dialog (bool new_session_required);
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void show_audiomidi_dialog ();
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void show_pre_release_dialog ();
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void show_plugin_scan_dialog ();
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void copy_demo_sessions ();
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bool get_session_parameters_from_command_line (bool new_session_required);
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bool get_session_parameters_from_path (std::string const & path, std::string const & template_name, bool new_session_required);
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void queue_finish ();
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bool ask_about_loading_existing_session (const std::string& session_path);
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int check_session_parameters (bool must_be_new);
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void start_audio_midi_setup ();
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void engine_running ();
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void handle_waiting_for_session_path ();
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/* the Audio/MIDI dialog needs to be persistent and is thus owned by
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* ARDOUR_UI and we use it by reference. All other dialogs can be
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* created and destroyed within the scope of startup.
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*/
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EngineControl& audiomidi_dialog;
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NewUserWizard* new_user_dialog;
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SessionDialog* session_dialog;
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ArdourDialog* pre_release_dialog;
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PluginScanDialog* plugin_scan_dialog;
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sigc::connection current_dialog_connection;
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sigc::signal1<void,Result> _signal_response;
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void dialog_hidden (Gtk::Window*);
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};
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#endif /* __gtk2_ardour_startup_fsm_h__ */
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