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/**
* Copyright (C) 2021 Saturneric <[email protected]>
*
* This file is part of GpgFrontend.
*
* GpgFrontend is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GpgFrontend is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
*
* The initial version of the source code is inherited from
* the gpg4usb project, which is under GPL-3.0-or-later.
*
* All the source code of GpgFrontend was modified and released by
* Saturneric <[email protected]> starting on May 12, 2021.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#include <csetjmp>
#include "GpgFrontendContext.h"
#include "core/GpgConstants.h"
#include "core/GpgCoreInit.h"
#include "module/GpgFrontendModuleInit.h"
#include "ui/GpgFrontendUIInit.h"
// main
#include "main.h"
/**
* \brief Store the jump buff and make it possible to recover from a crash.
*/
#ifdef FREEBSD
sigjmp_buf recover_env;
#else
jmp_buf recover_env;
#endif
namespace GpgFrontend {
constexpr int kCrashCode = ~0; ///<
/**
* @brief
*
* @param argc
* @param argv
* @return int
*/
auto StartApplication(const GFCxtWPtr& p_ctx) -> int {
GFCxtSPtr ctx = p_ctx.lock();
if (ctx == nullptr) {
GF_MAIN_LOG_ERROR("cannot get gpgfrontend context.");
return -1;
}
if (!ctx->load_ui_env) {
GF_MAIN_LOG_ERROR("the loading of gui application is forbidden.");
return -1;
}
auto* app = ctx->GetGuiApp();
if (app == nullptr) {
GF_MAIN_LOG_ERROR("cannot get qapplication from gpgfrontend context.");
return -1;
}
GF_MAIN_LOG_INFO("start running gui application");
/**
* internationalisation. loop to restart main window
* with changed translation when settings change.
*/
int return_from_event_loop_code;
int restart_count = 0;
do {
#ifndef WINDOWS
int r = sigsetjmp(recover_env, 1);
#else
int r = setjmp(recover_env);
#endif
if (!r) {
// after that load ui totally
GpgFrontend::UI::InitGpgFrontendUI(app);
// finally create main window
return_from_event_loop_code = GpgFrontend::UI::RunGpgFrontendUI(app);
} else {
GF_MAIN_LOG_ERROR("recover from a crash");
// when signal is caught, restart the main window
auto* message_box = new QMessageBox(
QMessageBox::Critical, _("A serious error has occurred"),
_("Oh no! GpgFrontend caught a serious error in the software, so "
"it needs to be restarted. If the problem recurs, please "
"manually terminate the program and report the problem to the "
"developer."),
QMessageBox::Ok, nullptr);
message_box->exec();
return_from_event_loop_code = kCrashCode;
}
GF_MAIN_LOG_DEBUG("try to destroy modules system and core");
// first should shutdown the module system
GpgFrontend::Module::ShutdownGpgFrontendModules();
// then shutdown the core
GpgFrontend::DestroyGpgFrontendCore();
GF_MAIN_LOG_DEBUG("core and modules system destroyed");
restart_count++;
GF_MAIN_LOG_DEBUG(
"restart loop refresh, event loop code: {}, restart count: {}",
return_from_event_loop_code, restart_count);
} while (return_from_event_loop_code == GpgFrontend::kRestartCode &&
restart_count < 3);
// log for debug
GF_MAIN_LOG_INFO("GpgFrontend is about to exit.");
// deep restart mode
if (return_from_event_loop_code == GpgFrontend::kDeepRestartCode ||
return_from_event_loop_code == kCrashCode) {
// log for debug
GF_MAIN_LOG_DEBUG(
"deep restart or cash loop status caught, restart a new application");
QProcess::startDetached(qApp->arguments()[0], qApp->arguments());
};
// exit the program
return return_from_event_loop_code;
}
} // namespace GpgFrontend
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